Ball Grid Array (BGA)

Background:In the information age, the update speed of electronic products is accelerated. In one hand, the popularity of computers, mobile devices, portable devices and other products has made people's demands on electronic products higher and higher, which means that the performance of products must be improved in order to meet people’s requirements. The feature size of IC chip should be smaller and smaller, and the complexity should be increased. That is to say, the number of I/O in the c...

Ball Grid Array (BGA)

The Application of AOI System in PCB

—created by PCBWayIntroduction: With the rapid development of IC industry and the improvement of special components as well as multifunction of electronic components, the number of pins in unit area are substantially increasing, which accelerated the transfer of QFP & TCP to BGA & CSP and promoted the obvious change of PCB technology. PCB products are also developing towards ultra-thin, small components, high density and fine spacing. As the density of components on the PCB increases, PC...

PCB AOI

The PCB manufacturing process

We have so many tech articles about how to design pcb. However you may still curious how to manufacture boards in our factory as a designer. I know you can check the production status in your PCBWay account, it shows the mainly production process, here I will show you more details and you can download the file.For Double sided PCB manufacturing processFor Multilayer PCB manufacturing processStep 1. IQC(Input Quality Control): IQC is mainly to control the raw materials, including the quality insp...

pcb manufacturing process

General introduction of Aluminum PCB

Among all Metal core PCBs,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 Backed PCBs is regarded as the solution to high power and tight tolerance applications. Advantages of Aluminum PCB 1.Environmentally Friendly: Aluminum is non-toxic and recyclable. Manuf...

Aluminum PCB

What is Automated optical inspection(AOI)

Automated optical inspection (AOI) is an automated visual inspection of printed circuit board manufacture where a camera autonomously scans the device under test for both catastrophic failure (such as missing component) and quality defects.It is commonly used in the manufacturing process because it is a non-contact test method. This guarantees the high reliability of Multi-CB multilayer circuit boards.It is especially important for the following application areas:l Line width violationsl Spaci...

Automated optical inspection AOI

What is HDI PCB

High density interconnect (HDI) PCB, represent one of the fastest growing technologies in PCBs. Because of its higher circuitry density than traditional circuit boards, the HDI PCB design is able to incorporate smaller vias and capture pads, and higher connection pad densities. HDI Boards contain blind and buried vias and often contain micro vias of 0.006 or less in diameter. By using HDI technology, designers now have the ability to place more components on both sides of the raw PCB if desired....

HDI PCB

PCB material classification

What is PCB?A printed circuit board (PCB)mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. Components are generally soldered on the PCB.-Printed circuit boards are used in all but the simplest electronic products. They are also used in some electrical products, such as passive switch boxes. The base pcb material (CCL-Copper Clad Laminate) is a composite materi...

PCB material

The difference between immersion gold and gold plating

Gold plating: Gold plating is a method of depositing a thin layer of gold onto the surface of another metal through plating way. The gold particles attached to the pcb, as strong adhesion also known as hard gold. The gold finger of memory bank is hard gold and abrasion resistant. Immersion gold: Immersion gold through chemical reaction to make gold particles attached to pcb. As weak adhesion it is also known as soft gold.Why use gold plating?As IC become more and more integrated and IC pins are ...

immersion gold,gold plating

What is ball grid array (BGA)

A ball grid array (BGA) is a type of surface-mount packaging used for integrated circuits. BGA packages are used to permanently mount devices such as microprocessors. A BGA can provide more interconnection pins than can be put on a dual in-line or flat package, each pin is provided with a solder ball. All connections are distributed in a uniform surface grid or matrix on the component. The whole bottom surface of the device can be used instead of just the perimeter. The leads are also on average...

ball grid array,BGA

General introduction of SMD Adhesive

SMD Adhesive is also called Surface Mount Adhesive.Before soldering, components with pin contacts or SMDs are often bonded to the PCB with adhesive. This allows, for example, several capacitors, electrolytic capacitors and coils to be positioned on a circuit board and cured within just a few seconds to prevent their falling over or sliding out of position on the PCB. The secured components can then be reflow-soldered in a single work step, which saves time and speeds up production. The SMD adhes...

SMD Adhesive Surface Mount Adhesive

What is Electronic test/probe test

Combine Automatic optical alignment system and the traditional flying needle machine together,with the help of image-processing software and flying-pin-only cameras, flying probe test is easier and more accurate.The electronic test for circuit boards is performed after manufactured. All the pcb manufactured by PCBWay must be checked with flying probe test. The layout is analysed according to the pcb file for short circuits and interruptions. This is important because only the E-test detects inco...

Electronic test probe test

Comparison of several PCB surface finish types

PCB surface finish is a coating between a component and a bare board PCB. It is applied for two basic reasons: to ensure solderability, and to protect exposed copper circuitry. As there are many types of surface finishes,selecting the right one is no easy task, especially as surface mounts have become more complex and regulations such as RoHS and WEEE have changed industry standards.HASL(Hot Air Solder Leveling) / Lead Free HASLHASL is the predominant surface finish used in the industry. The pro...

PCB surface finish OSP HSAL Lead Free HASL ENIG

Flexible PCB vs Rigid PCB

Flexible PCB (also variously referred to around the globe as flex circuits, flexible printed circuit boards, flex print, flexi-circuits) are members of electronic and interconnection family. They consist of a thin insulating polymer film having conductive circuit patterns affixed thereto and typically supplied with a thin polymer coating to protect the conductor circuits. The technology has been used for interconnecting electronic devices since the 1950s in one form or another. It is now one of ...

Flexible PCB Rigid PCB

What is Rigid-Flex PCB?

Rigid-Flex printed circuit boards are boards using a combination of flexible and rigid board technologies in an application. Most rigid flex boards consist of multiple layers of flexible circuit substrates attached to one or more rigid boards externally and/or internally, depending upon the design of the application. The flexible substrates are designed to be in a constant state of flex and are usually formed into the flexed curve during manufacturing or installation.Rigid-Flex designs are more ...

Rigid-Flex PCB

Aluminum PCB vs FR-4 PCB

What is Aluminum PCB?Among all Metal core PCBs, 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 Backed PCBs is regarded as the solution to high power and tight tolerance applications. Price ComparesFR-4 PCB is a very conventional PCB type of electronic industr...

Aluminum PCB FR-4 PCB

What are Plated Half-Holes(Castellated Holes)

Plated half holes(castellated holes)are holes that made off the edge of the boards plated withcopper using a specialized process. It is predominantly used for board-on-board connections, mostly where two printed circuit boards with different technologies are combined.Through connecting the PCBs together directly, the whole system is considerably thinner than a comparable connection with multi-pin connectors. The plated edges are also useful in producing mini PCB modules. Plated half holes are av...

Plated Half-Holes Castellated Holes

What is the meaning of Glass Transition Temperature (Tg)

The Glass Transition Temperature (Tg) is one of the most important properties of any epoxy and is the temperature region where the polymer transitions from a hard, glassy material to a soft, rubbery material.Circuit board material must flame-resistant, it can’t be burned at a certain temperature and only be soften. The temperature point is called the glass transition temperature (Tg).The higher Tg point means higher temperature requirement during lamination. And the boards will be hard and crisp...

Glass Transition Temperature

What is Solder Mask Bridge and Solder Mask Opening on a PCB

1.Solder Mask Bridge: The oil between two pins of component is solder mask bridge, generally refers to intensive IC pin (check the below picture). If the distance of pin is too small, it will be recommended to cancel the solder mask bridge and take advantage of solder mask opening technology.2.Solder Mask Openings: the place without solder mask calls solder mask opening3.PCBWay can accept the minimum distance between IC pins is 0.2mm (check the below picture), if the distance less than 0.2mm, we...

Solder Mask Bridge Solder Mask Opening

Refuse conductive adhesive technology in pcb manufacture

What is conductive adhesive?Conductive adhesive is adhesive that has conductive performance in solid or dried state. Its main components are matrix resin and conductive fillers, also means conductive particles. The particles of the conductive component are in contact to each other and in this way make electric current possible.What is PTH?PTH is “Electroless Plating Copper”, also known as "Plated Through Hole", which is a self-catalytic redox reaction. Two or multiple layer PCB will st...

conductive adhesive PTH eletcroless Plating Copper Plated Through hole

Why is there additional cost for panel PCBs?

The reason why the cost of panel pcb will increase is it lower substrate utilization.PCB substrate is a fixed size, when your board is small, manufacturers can make panel by themselves, so the rate of substrate utilization is high and less waste area, the cost will decrease.But if your design is panel, the manufacturer must treat your panel as the basic unit, so the rate of substrate utilization is low and the cost will rise. And it needs V-cut and route.And many different designs on the same b...

Panel PCB substrate utilization

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