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Electroplating can be divided into hard gold and soft gold. Hard gold electroplating is an alloy, so its hardness is relatively hard. It is suitable for use in places requiring force and friction. It is generally used as the edge contact point of PCB (commonly known as golden finger). Soft gold, On the other hand, is commonly used to connect aluminum wires On the COB (Chip On Board) or On the touch surface of mobile phone keys, and more recently, it is widely used On both sides of BGA boards. The distinction of hard gold and soft gold, it is the component of this layer of gold that goes up finally plating, when gold-plating can choose electroplate pure gold or alloy, because the hardness of pure gold is softer, so also call "soft gold".

Function of auxiliary components in PCB plating hard gold plating solution:

Boric acid ACTS: as a buffer, which can maintain a relatively balanced PH value of hard gold-plated PCB plating solution with a concentration of 35~55g/l;

Nickel chloride: it is an anode activator, which can effectively promote the dissolution of anode nickel Angle and avoid the passivation of anode;

Brightener: can improve the brightness of the coating, the brightener used for acr-3010, the control range is 25~35ml/l;

Anti-pinhole agent: it can effectively drive away the hydrogen bubbles on the coating and prevent the generation of pinhole defects;

Brightener and anti-pinhole agent supplement method: in order to add less frequently appropriate, one time do not add too much to the hard gold plated PCB plating solution.

Thick Copper PCB Difinition and Thickness

There is no exact definition of thick copper in the PCB industry. Generally, the copper thickness ≥ 2oz is defined as Heavy copper PCB. Heavy copper PCB is mainly used in high-current electronic products. High-current electronic products are generally high-power or high-voltage PCBs. They are mostly used in automotive electronics, communication equipment, aerospace, planar transformers, and secondary power modules.

Our thickest copper PCB can make 6 ounces. However, considering the side eclipse factor, copper thickness of more than 3 ounces should pay special attention to the line width of the inner layer.

Inner 3 oz copper pcb: line width 6/7 mil outer 3 ounces: line width 8/12 mil

Inner layer 4 oz copper pcb: line width line spacing 8/11 mil outer layer 3 ounces: line width line spacing 9/15 mil

Inner 5 oz copper pcb: line width 10/16 mil outer 3 ounces: line width 11/16 mil

Inner 6 oz copper pcb: line width line spacing 12/18 mil outer layer 3 ounces: line width line spacing 14/18 mil

Heavy Copper PCB Production Difficulties

1. If the etching is not clean during the etching process, the pressure will not reach the standard, and if it is serious, it will cause the line to short-circuit.
2. Heavy Copper PCB dense lines are prone to foaming during solder mask ink fabrication
3. Heavy Copper PCB has the highest scrap rate in the inner layer of the drilling process, the hole is thick, the nail head is the highest.
4. In the pressing process, it is easy to have insufficient glue filling, excessive flow glue, uneven thickness, void and so on.

When the electronic device need high power or current through, Then we need consider heave copper to control the thermal on PCB, Thermal management is more important than ever today as electronics are used in demanding environments and Operative at higher currents. Heavy copper PCBs (copper conductors 5 oz/ft2 – 19 oz/ft2 in inner And/or outer layers; sometimes defined as more than 4 oz per square foot (ft2)) can help conduct heat away from components so failure is greatly reduced. PCB manufacturers create durable wiring platforms with heavy copper. And boards may be manufactured in a smaller footprint as they can contain multiple weights of copper on the same circuit layers.

The Benefits of Heavy Copper PCBs include: Reduction of Thermal Strain

1. Better current conductivity
2. Can travelers repeated thermal cycling
3. Smaller PCB size due to layering of copper
4. Increased connector site strength

Welcome to custom Thick Copper PCB Board directly from Heavy Copper PCB Manufacturer at low cost.

PTFE Teflon PCB has excellent comprehensive performance: high temperature resistance (-192°C-260°C), corrosion resistance (strong acid, strong alkali, aqua regia, etc.), weather resistance, high insulation, high lubrication, no adhesion, Non-toxic and other excellent characteristics.

At present, various types of PTFE pcb board have played a pivotal role in the national economy such as chemical, machinery, electronics, electrical appliances, military, aerospace, environmental protection and bridges. And we are a professional teflon pcb manufacturer.

PTFE Teflon PCB Application

The PTFE Teflon PCB is suitable for use in electrical insulation materials and linings, supporting sliders, rail seals and lubricating materials for electrical insulating materials and contact corrosive media. It is used in light industry in rich cabinet furniture. It is widely used in chemical, pharmaceutical, dye container, storage tank, reaction tower kettle, anti-corrosion lining material for large pipelines; heavy industry such as aviation and military; mechanical, construction, traffic bridge slider, guide rail; printing and dyeing, light industry, textile Industry's anti-adhesive materials, etc.

Characteristics of PTFE Teflon PCB

Low loss, low dielectric constant, good consistency, stable chemical properties, and almost no moisture absorption. It is often used on RF and microwave circuits where high requirements are required.

1) high temperature resistance - use working temperature up to 250 °C.

2) low temperature resistance - has good mechanical toughness; even if the temperature drops to -196 ° C, it can maintain 5% elongation.

3) corrosion resistance - for most chemicals and solvents, showing inertness, strong acid and alkali, water and various organic solvents.

4) Weather resistance - the best aging life in plastics.

5) High lubrication - the lowest friction coefficient in solid materials.

6) non-adhesive - is the smallest surface tension in solid materials, does not adhere to any substance, mechanical properties, its friction coefficient is very small, only 1 / 5 of polyethylene, which is an important feature of the surface of perfluorocarbon . Moreover, since the intermolecular force of the fluorine-carbon chain is extremely low, the polytetrafluoroethylene has no stickiness.

7) non-toxic - physiologically inert, long-term implantation of artificial blood vessels and organs without adverse reactions.

8) Good electrical properties - Polytetrafluoroethylene has low dielectric constant and dielectric loss over a wide frequency range, and high breakdown voltage, volume resistivity and arc resistance.

Custom low cost metal core pcb from professional pcb manufacturer china shenzhen, PCBSKY provides best service metal core pcb prototype.

MCPCB, Metal aluminium Core PCB, thermal PCB -  whichever name you prefer, they are all boards which use a base metal material as the heat spreader portion of the circuit board.

Base metals in the MCPCB are used as an alternative to FR4 or CEM3 boards for the ability to dissipate heat away from critical board components and to less crucial areas such as the metal heatsink backing or metallic core.

Metal Core PCB Fabrication Materials and Thickness

The metal core of the thermal PCB can be aluminum (aluminum core PCB), copper (copper core PCB or a heavy copper PCB) or a mixture of special alloys. The most common is an aluminum core PCB.

The thickness of metal cores in PCB base plates is typically 30 mil - 125 mil, but thicker and thinner plates are possible.

MCPCB copper foil thickness can be 1 - 10 oz.

Advantages of  MCPCB board

MCPCBs can be advantageous to use for their ability to integrate a dielectric polymer layer with a high thermal conductivity for a lower thermal resistance.

Metal core PCBs transfer heat 8 to 9 times faster than FR4 PCBs. MCPCB laminates dissipate heat, keeping heat generating components cooler which results in increased performance and life.

Among all Metal core PCBs (MCPCBs, known for their ability to provide effective thermal dissipation for electronic products), Aluminum PCBs is the most common type - the base material consists of aluminum core with standard FR4. It features a thermal clad layer that dissipates heat in a highly efficient manner, while cooling components and increasing the overall performance of the products. Currently, Aluminum Base PCBs is regarded as the solution to high power and tight tolerance applications.

Pcbsky MCPCB Manufacture

Pcbsky has been offering MCPCBs manufacturing services for over six years. Our full feature metal core pcb making capabilities and value-added options including Free DFM Check allow you to get high-quality metal core PCBs done within budget. metal core PCBs printed by us are widely used for LED lighting, power equipment and automotive systems.

Not only our MCPCB is provided with professional levels of development and production, but also we may provide comprehensive technical support for area of semiconductor lighting from encapsulation to heat conducting and radiating of lamps and lanterns. We may assist, participate and develop independently radiating and heat conductive plan for you according to your needs.

Welcome to custom MCPCB from metal core pcb manufacturer at very competitive factory price. If you want to know more about the mcpcb price, please contact us.

Custom high frequency pcb from professional pcb manufacturer china shenzhen with factory price in low cost.

The high frequency of electronic equipment is a development trend, especially in the development of wireless networks and satellite communications, the high-speed and high-frequency information products, and the standardization of voice, video and data for wireless transmissions with large capacity and fast communication products. A new generation of products that require high-frequency substrates. High Frequency PCB, HF PCB Types as below:

ROGERS PCB

PTFE TEFLON PCB

FR4+HIGH FREQUENCY PCB

High Frequency PCB Features

1, the impedance control requirements are more stringent, the relative line width control is very strict, the general tolerance is about 2%.

2. Due to the special plate, the adhesion of PTH to copper is not high. It is usually necessary to roughen the via and surface by means of plasma processing equipment to increase the adhesion of PTH hole copper and solder resist ink.

3, can not be used before the resistance welding, otherwise the adhesion will be very poor, can only be roughened with micro-etching water.

4. Most of the plates are made of PTFE. There are many burrs formed by ordinary milling cutters, and special milling cutters are required.
5. The high-frequency PCB is a special circuit board with a high electromagnetic frequency. Generally, the high frequency can be defined as a frequency above 1 GHz.

Its physical properties, precision, and technical parameters are very high, and it is often used in automotive anti-collision systems, satellite systems, radio systems and other fields.

In general terms, the PCB industry considers an RF circuit board to be any high frequency PCB that operates above 100MHz. Within the radio frequency class, anything above 2GHz is a Microwave PCB.

A High Frequency PCB Requires the Use of Specialized Materials

Special materials are required to achieve the high frequency provided by this type of printed circuit board - any changes in the Er value of these materials can affect the impedance of the board. Many PCB designers turn to Rogers dielectric material for its lower dielectric loss, reduced signal loss, lower cost of circuit fabrication and better suitability for fast-turnaround prototyping applications.

Apart from choosing the appropriate PCB material and determining the correct the value of the Er, designers should take parameter such as conductor width and spacing, substrate constant into consideration. These parameters must be exactly specified and implemented with the highest level of process control.

High Frequency PCB by PCBSky

We're a High Frequency PCB Manufacturer That Takes the Time to Assess Your Needs

PCBSky is an experienced high frequency PCB company who provides a reliable, superior-performing high-frequency PCB fabrication services.

We manufacture high-frequency PCBs with frequency typically in the range from 500MHz to 2GHz. The following table shows some of our common-use materials for High-Frequency PCBs manufacturing.

Check our capabilities by viewing the table found below:

Discuss your High Frequency PCB Project Today

For High Frequency PCB manufacturing price, please send your PCB file (Gerber format preferred | Preorder Checklist) & requirements using this contact form, we'll quote at quickest speed.

Wanna know our customizable high-frequency PCB solutions? Can't determine which PCB material is the best choice for your project? Require advanced specs which are not listed in the above table? Reach our engineers using the same contact form for practical solutions.

Choosing and Combining Your Materials

Many RF applications are multi-layer affairs and the properties of the board can be fine-tuned by mixing and matching different materials to strengthen the balance of electrical performance, thermal properties and cost.

Composite boards, often referred to as hybrid multi-layer PCBs, can be difficult to build because many layer-to-layer interactions must be taken into account for multiple steps along the PCB manufacturing process. Additional challenges also arise, such as a mixed-signal PCB design that combines analogue and digital components, generating a list of variables that becomes quite large. With so many current applications and emerging markets for RF, the future is bright indeed.

However, RF boards are clearly complex and have many variables that must be addressed and exhibit unusual behavior that is not shared with their lower-frequency cousins. While it may be challenging, it’s not “black magic.”

If you are seeking to manufacture RF PCBs and have questions relating to manufacturing or need a quote, PCBSky is here to help with their extensive engineering expertise.

HDI PCBs, one of the fastest growing technologies in PCBs, are now available at PCBSky. HDI PCBs contain blind and/or buried vias and often contain microvias of .006 or less in diameter. They have a higher circuitry density than traditional circuit boards.

There are 6 different types of HDI PCBs, through vias from surface to surface, with buried vias and through vias, two or more HDI layer with through vias, passive substrate with no electrical connection, coreless construction using layer pairs and alternate constructions of coreless constructions using layer pairs.

HDI any-layer printed circuit boards are the next technological enhancement of HDI microvia printed circuit boards: all the electrical connections between the individual layers consist of laser-drilled microvias. The main advantage of this technology is that all the layers can be freely interconnected. To produce these circuit boards, PCBSky uses laser-drilled microvias electroplated with copper.

Special Technologies Used with HDI Any-layer Printed Circuit Boards

Edge plating for shielding and ground connection

Minimum track width and spacing in mass production around 40μm

Stacked microvias (plated copper or filled with conductive paste)

Cavities, countersunk holes or depth milling

Solder resist in black, blue, green, etc.

Low-halogen material in standard and high Tg range

Low-DK Material for Mobile Devices

All recognised printed circuit board industry surfaces available

HDI PCB Technology Sheet

PCBSky HDI PCB Structures

1.  1+N+1 - PCBs contain 1 "build-up" of high-density interconnection layers.
2.  i+N+i (i≥2) - PCBs contain 2 or more "build-up" of high density interconnection layers. Microvias on different layers can be staggered or stacked.
3.  Copper filled stacked microvia structures are commonly seen in challenging designs.
4.  Any Layer HDI - All the layers of a PCB are high density interconnection layers which allows the conductors on any layer of the PCB to be interconnected freely with copper filled stacked microvia structures ("any layer via"). This provides a reliable interconnect solution for highly complex large pin-count devices, such as CPU and GPU chips utilized on handheld and mobile devices.

PCBSky HDI PCB Capabilities: Microvias PCB

A microvia maintains a laser drilled diameter of typically 0.006" (150µm), 0.005" (125µm), or 0.004" (100µm), which are optically aligned and require a pad diameter typically 0.012" (300µm), 0.010" (250µm), or 0.008" (200µm), allowing additional routing density. Microvias can be via-in-pad, offset, staggered or stacked, non-conductive filled and copper plated over the top or solid copper filled or plated. Microvias add value when routing out of fine pitch BGAs such as 0.8 mm pitch devices and below.

Additionally, microvias add value when routing out of a 0.5 mm pitch device where staggered microvias can be used, however, routing micro-BGAs such as 0.4 mm, 0.3 mm, or 0.25 mm pitch device, requires the use of Stacked MicroVias using an inverted pyramid routing technique.

Any PCB Layer HDI

1. Multilayer copper filled stacked micro via structure
2. 3/3 mil line/space

4/8 mil laser via capture pad size

Material Options

High temperature FR4

Halogen - Free

Welcome to order HDI PCB from PCBSky at a very competitive HDI PCB price.

Hard Gold PCB, immersion gold pcb, is to immerse the board in the plating tank and apply current to form a nickel-gold coating on the copper foil surface of the board. The electro-nickel gold is characterized by high hardness, wear resistance and oxidation resistance. Widely used in applications.

Introduction to Hard Gold PCB Technology:

1. Purpose and role: gold as a precious metal, has good weldability, oxidation resistance, corrosion resistance, small contact resistance, good wear resistance of the alloy and so on;

2. At present, the electroplating gold of the circuit board is mainly a citrate gold bath, which is widely used for its simple maintenance and simple and convenient operation;

3. Water gold content is controlled at about 1 gram / liter, PH value of about 4.5, temperature of 35 degrees, specific gravity of about 14 waves, current density of about 1ASD;

4. The main added drugs are acid-adjusted salt and basic-adjusted salt for adjusting pH value, conductive salt and gold-plated supplement additive for adjusting specific gravity, and gold salt;

5. In order to protect the gold cylinder, a citric acid dip tank should be added in front of the gold cylinder to effectively reduce the pollution of the gold cylinder and maintain the stability of the gold cylinder;

6. After the gold plate is electroplated, a pure water wash is used as the recovery water wash. At the same time, it can also be used to supplement the liquid level of the gold cylinder evaporation change. After the water is washed, it is connected with the second-stage counter current pure water wash. After the gold plate is washed, the alkali liquid is put into 10 g/shdter. To prevent oxidation of the gold plate;

7. Gold cylinder should use platinized titanium mesh as anode, generally stainless steel 316 is easy to dissolve, resulting in nickel-iron-chromium and other metal pollution gold cylinder, causing plating white, exposed plating, blackening and other defects;
8. Gold cylinder organic pollution application of carbon core continuous filtration, and supplemented with appropriate amount of gold plating additives.

What is Immersion Gold Plating:

Everyone chooses immersion gold plating, then what is immersion PCB gold plating, we say the whole plate gold plating, generally refers to "electroplating gold", "electroplated nickel gold plate", "electrolytic gold", "electric gold", "electric nickel plate", soft gold and the distinction between hard gold (usually hard gold is used for gold fingers), the principle is to dissolve nickel and gold (commonly known as gold salt) in chemical potion, dipping the board in the plating tank and turning on the current on the PCB. A nickel-gold plating layer is formed on the surface of the copper foil, and the nickel-gold alloy is widely used in electronic products because of its high hardness, wear resistance, and oxidation resistance.

Electric gold standard: nickel thickness 3-5um; gold thickness 0.25-1.5um; gold thickness minimum 3U''.

The Application of Hard Gold PCB

Hard Gold PCB is widely used in intelligent AI, entertainment, educational robots or other industrial intelligent equipment to expand and contract, rich in change action, frequent separation and contact of local ports of the device, which requires good wear resistance of the PCB at the contact area of the port. Sexual and not easily oxidized.

Welcome to custom Hard Gold Plating PCB directly from Shenzhen PCB Manufacturer at low cost.

Among the large-scale use of PCI and optical modules and cable sockets, the gold fingers PCB has been divided into: long and short gold fingers, broken gold fingers, split gold fingers, gold finger plates in the process of processing, need to pull gold-plated wire, conventional gold finger processing is relatively simple, the length of the circuit board fingers require strict control of the gold finger lead and requires a second etching to complete. Broken gold finger PCB than length The difficulty of the gold finger is increased, and the dry film is required to be processed three times. The lead does not need to be left for 4 times to complete the production of the gold finger .90% of companies are unable to process the control of the golden finger. PCBSky processing plug gold fingers PCB and long and short gold fingers PCB, broken section Gold finger PCB, master the core manufacturing technology, single gold finger plating thickness up to 50U gold thick, industrial graphics card PCI can be processed to 50U gold thickness.

The most common PCB gold fingers design appears on the graphics card and memory stick inside the computer.

Why Choose Gold Fingers PCB?

★ A unique role of PCBA needs to be interconnected with the motherboard but needs to be replaced easily. Design the golden finger and slot connection, similar to the relationship between the power plug and the socket.

★ Because gold has good conductivity and inertness, it ensures the conductive effect without oxidation, and it also ensures sufficient conductivity after frequent insertion and removal of gold.

Gold Finger Definition and Role

Gold Finger: (Gold PCB Finger Connector or Edge Finger Connector) Insert one end of the PCB into the connector card slot, and use the connector pin as the external connection of the pcb board to make the pad or copper contact with the corresponding pin. To achieve the purpose of conduction, and plated nickel or gold on this pad or copper plate of pcb board, because it is a finger shape, it is called gold finger. The reason why gold is chosen is because of its superior conductivity and oxidation resistance. Sex. But because the cost of gold is extremely high, it is only used for local gold plating such as gold fingers.

Gold Finger PCB Design Considerations

1. First ensure that the length, width, position and card slot of the gold finger are fully matched to ensure proper interconnection.
2. The foolproof KEY SLOT designed on the PCB board, the width, height, position and the convexity in the card slot are completely matched.
3. Part of the PCB needs a shorter design of individual fingers, if you can not directly add a wire under the finger, you need to consider how to conduct electricity during pcb gold plating.
4. The angle and depth of the beveled edge of the gold finger are the same as the length of the finger. Do not cause the finger to be short or the beveled edge after the beveled edge.

Welcome to custom Low Cost PCB Fabrication - Gold Fingers PCB from Shenzhen PCB Manufacturer.

Half hole pcb

The walls of the PTH holes on the PCB are plated with Half-hole formed by smooth and complete metal forming.The Half hole process on the edge of the board is already a mature process in PCBSKY PCB manufacturing processing.

How to control the quality of the product after forming the Half-hole on the edge of the board. For example, the copper spurs of the hole wall and the residue have always been a problem in the processing.

This type of board has a row of half hole in the PCB, which is characterized by a relatively small aperture, mostly used on the carrier board, as a daughter board of the motherboard, through the half-hole and the motherboard and components The feet are welded together.

Therefore, if there are copper thorns remaining in these half-hole, the soldering of the plug-in manufacturers will result in inaccurate solder joints and weak soldering, which will cause a bridge short circuit between the two pins.

Half hole pcb has a minimum processing capacity of 0.4 mm for the sample and a minimum of 0.5 mm for the batch.

Edge Plating does not have a set definition per IPC. However, the industry generally accepts this as being copper plating that continues from the top and bottom surfaces and along one or more perimeter edges. The PCB edge plating process can be used for a variety of purposes, including, but not limited to edge soldering, edge connections, and to increase current carrying capacity. Burrs Often pcb edge plating, especially on castellations, can result in burrs from the final machining process.

We apply a modified, proprietary process flow that results in the burrs being polished down to the edge of the feature. Copper Peeling Plating over a large substrate surface can lead to the plated copper peeling due to a lack of adhesion strength. We address this by first roughening the surface through a combination of chemical and other proprietary means. We then use direct metallization, which has a higher copper bond strength, to prepare the surface for plating.

Welcome to custom Edge Plating PCB / Half Hole PCB directly from PCB Factory at low cost.

After the double-sided PI board copper-clad board material is used in the double-sided circuit, a protective film is added on both sides to form a circuit board having a double-layer conductor.

The Structure of the Double-layer FPC

When the circuit of the circuit is too complicated, the single-layer fpc cannot be wired or copper foil is needed for ground shielding, it is necessary to select a double-layer fpc or even a multi-layer fpc. The most typical difference between a multi-layer fpc and a single-layer fpc is the addition of a via structure to join the layers of copper foil. The first processing technique of general substrate + transparent rubber + copper foil is to make via holes. First drill holes in the substrate and copper foil, after plating, a certain thickness of copper is plated, and the via holes are completed. The subsequent production process is almost the same as that of a single layer. Double-panel structure: Both sides of the double-sided panel have pads, which are mainly used for connection with other boards. Although it is similar to a single-layer structure, the manufacturing process varies greatly. Its raw materials are copper foil, protective film + transparent plastic. First, drill holes on the protective film according to the position of the pad, then paste the copper foil, etch the pads and leads, and then attach another protective film with holes.

FPC Application

FPC is mainly used in the connection parts of electronic products, such as mobile phone cable, liquid crystal module, etc. Compared with the double sided flexible PCB, it is smaller in size and lighter in weight, and can realize bending and flexing, three-dimensional three-dimensional assembly and the like. Most of the FPC should be labeled with components.

Welcome to custom Double Sided Printed Circuit Board directly from Shenzhen PCB Manufacturer at low cost.

Custom blind and buried vias fabrication from professional and experienced pcb board supplier at low cost.

First of all, we start with traditional multi-layer boards. The structure of a standard multi-layer circuit board is a process including an inner layer line and an outer layer line, followed by drilling, and metallization in the hole to achieve the internal connection function of each layer line. However, due to the increase in line density, the way parts are packaged is constantly updated. In order to allow for a wider board area, more high-performance parts can be placed. In addition to the thinner line width, the aperture is also reduced from 1 mm in the DIP jack to 0.6 mm in SMD, and further reduced to 0.4 mm or less. However, the surface area is still occupied, so that there are buried holes and blind holes.

The Buried Holes and Blind Holes are Defined as Follows

Blind Vias: A blind via is a type of via that connects the inner trace of the PCB to the trace of the PCB surface. This hole does not penetrate the entire board.

Buried Vias: Buried vias are only connected to the type of vias between the inner layers, so they are not visible from the surface of the PCB.

Advantages of Blind Buried Hole Printed Circuit Board

Eliminate a large number of through-hole designs and increase wiring density and package density;

Diversify and complicate the design of the interconnect structure of the multi-layer board;

Significantly improved the reliability of multi-layer boards and the electrical performance of electronic products.

The Following Three Points are Distinguished for Blind Buried Plate Boards

In contrast to the through hole, the through hole refers to a hole through which each layer is drilled, and the blind hole is a non-drilled through hole.

Blind hole subdivision: blind hole, buried hole (outer layer is not visible).

Distinguish from the production process: blind holes are drilled before pressing, and through holes are drilled after pressing.

Blind buried hole technology is mainly used on relatively high-end PCBs, with high technical content and high requirements for PCB board manufacturers.

PCBSKY is a national enterprise focusing on PCB and PCBA manufacturing for 8 years. The company has a strong engineering team and a professional electronic component procurement team to serve many domestic and foreign automotive electronics, medical electronics, power communication, industrial automation and smart home. Customers in various industries, is a one-stop manufacturing service provider integrating PCB manufacturing, electronic component acquisition, SMT chip processing and test assembly.

Our company provides PCBA electronic manufacturing solutions for customers in developed countries and regions such as the United States, Canada, Germany, France, Hong Kong, etc., and has won good reputation, including PCB board manufacturing and SMT chip processing and other core businesses.

Self-developed SMT patch online quotation ordering system, the quotation is accurate and hidden, the procurement is efficient and convenient; the production of ERP system in the docking factory, the order situation is unobstructed, the production plan is controlled at any time, so that your PCBA and circuit board projects are in good condition.

China SMT assembly processing

Preparation of production materials 2 making pcb stencil

QC inventory materials 4 program debugging

materials on the machine 6 printing solder paste

first try stickers 8 patch processing

reflow soldering 10AOI optical inspection

after welding 12 QC test

PCBSKY is your trusted one-stop SMT patch, PCBA processing service.

If you have any questions or concerns about PCBSKY PCB Assembly Manufacturer, please feel free to contact us through Email or hotline.

Eolane SCM is specialized in Special Material PCBs, such as: Metal PCB, Ceramic PCB, High Frequency(HF) PCB, Teflon PCB, High Temperature(High TG) PCB, Halogen free PCB, etc.

There is a lot that goes into the design of a printed circuit board so that engineers know it will be able to meet the demands of the application once fabrication and assembly are complete. In order to make sure that your PCBs are going to give you the most value, you should connect with an expert at Eolane SCM about the following:

Desired Result

Teflon PCB material Needed

PCB Design Software

Required Components/Industry Standards or Regulations

Turnaround Time/PCB Fabrication and Assembly

This way, your representative will be able to give you tips on new PCB materials, components and other processes that can benefit you when you are ready to order your next batch of circuit boards.

We achieve the highest quality levels by utilizing the latest equipment, processes, and quality standards throughout our organization. Our facilities are ISO 9001, ISO 13485, TS 16949, ISO 14001 and UL certified.

We have instituted a problem prevention methodology which allows us to flawlessly launch and sustain your project: Rigorous auditing and continuous training for personnel at all levels; Engineering change system to prevent-quality issues related to design changes; Document control center to safeguard your data and release of technical documents; Corrective action system, based on the 8D approach.

We invest our time, knowledge and capital to create an optimal solution to meet your requirements and keep you ahead of your competitors. Our goal is to provide you with the best possible products with the lowest total cost of ownership available.

Semi flex PCB is a flex-rigid PCB, typically 4 layers, made entirely of FR4. Unlike conventional flex-rigid PCBs, the flexing element is not polyimide but a thin FR4 core with two layers of copper specially treated to flex without cracking. A less robust solution uses a depth-milled layer rather than a core.

While this type of flexible circuit may be more expensive to design and produce, it does offer a number of important advantages. For instance, the reduced size makes it easier to fit more components into a smaller space. This can actually help to lower overall system costs. Additionally, because they require the need for fewer interconnects and related parts and components, these semi flexible pcb can also prove to be more reliable and require less maintenance in the long run.

As with all types of flexible circuit boards, the semi-flex PCB will perform well in even the harshest environments, especially those featuring extreme heat. A semi-flex  board is also easy to test, making it well-suited for prototyping.

Eolane SCM is recognized as a leading manufacturer of printed circuit boards, specializing in the following market segments:

• PCB Prototypes
• Short Runs
• Medium Runs
• Long Runs

Value added services, superior product quality, on-time delivery, and total customer satisfaction are our core priorities.

Cheap Multilayer PCB Capabilities

• Max Number of PCB Layers: Up to 36 Layers
• Max Circuit Board Size: 21"x 24" (533.4 x 609.6) (Special Size ,Pls contact us ,Led length up to 1500mm)
• Min Trace/Space: 3 mil (0.0762mm)
• Min Mechanical Drill Size: 8mil (0.20mm)
• Min Laser Drill Size: 3 mil (0.0762mm)
• Max Inner Copper: 5oz
• Max Outer Copper: 11 oz
• Controlled Impedance +/-7%
• Blind / Buried Vias
• Material: FR4, FR4 High Tg, Aluminum, Rogers, Arlon, etc.
• Surface: Lead Solder (HASL), Lead Free Solder(HASL – LF), ENIG, Immersion Silver, Immersion Tin, OSP, Hard Gold, Flash Gold, etc.
• RoHS Compliant
• Class II & Class III
• UL certified
• ISO 9001
• Free E-test on Every Board

Multilayer Flexible PCB Specification

We are multilayer pcb supplier with excellent products, don’t hesitate to contact.

Flexible printed circuit boards, also called Flexible PCBs or Flex PCBs, derive their name for their ability to enable the circuitry to be designed to fit the electronic device or product, as opposed to building the device to conform to the circuit board. Flex circuit boards are characterized by a distinctly patterned printed circuitry and component arrangement highlighted by a malleable base material.

Flexible pcb board is used widely in everyday technology and electronics in addition to high-end, complex completed components.

Flexible circuits are also used extensively in other applications and industries including:

• Communications
• Consumer Electronics
• Automotive
• Medical
• Industrial
• Aerospace
• Military
• Transportation

In transportation they are extensively used due to their improved resistance to vibrations and movement.

Flexible printed circuit boards offer a number of potential benefits including:

• Saving Space. Flex PCB design requires only about 10 percent of the space and weight of an ordinary circuit board assembly, offering greater installation and packaging freedom. The inherent flexibility also permits tighter bend capabilities.
• Maximum Reliability. A flexible printed circuit board requires fewer interconnects, which in turn requires fewer contact crimps, connectors and solder joints. Simply put, a flexible PCB board does not contain as many potential sources for failure, which enhances their reliability.
• Enhanced Capabilities. The flexible printed circuits boards are compatible with virtually any type of connector or component and works well with options such as ZIP connectors. They also perform extremely well in extreme temperatures and offer superior resistance to radiation and chemicals.
• Cost Savings. Cost-saving advantages of Flexible PCBs include reduced material and packaging demands, lower parts replacement costs and assembly errors that could result in the need for repairs.

These benefits make flex PCBs ideally fit for a wide range of applications in industries such as Military, Transportation, Medical, Consumer Electronics, Automotive, Aerospace, Communications and Industrial.

Flexible Printed Circuit Boards are one of the most popular types of circuit boards used in a variety of industrial and commercial applications. At Eolane SCM, we manufacture flexible printed circuits keeping the needs of our customers in mind. Our circuit boards provide quality and durable performance while being cost-effective in terms of manufacturing.

Flex Circuit Boards Specification

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