What is the bare board test? In some PCB factories, engineers also named BBT. BBT is short for Bare Board Test. If you have read our bare board article, you may know BBT is tested for bare board. The capability of Bare board test The different PCB factory has differing bare board test capability. Here […]
Monthly Archives: November 2016
Why we compression Base Solderability V.S. Basic Wettability We have discussed Base Solderability in the previous post. In fact, the base wettability is similar with base solderability. It’s also a very basic definition of the flexible PCB board. But also have some new PCB guys don’t know this basic usability. The definition of Basic Wettability […]
The reason why discuss base solderability This paper Emma wants to discuss base solderability. This is a very simple PCB glossary, but also have some PCB guys don’t know. In fact, this is the ignore point during flexible PCB board purchase process. So 4MCPCB want to learn more PCB purchasers know and clear base solderability. […]
4MCPCB experts introduce Bed-of-Nails The simple says Bed-of-Nails is a method of PCB testing. Different with probe testing method, this method tool involving a fixture containing a field of spring-loaded pins. Bed-of-Nails have a unique feature below. And the spring-loaded pins are co-ordinated with strategic points or nodes on the board. The strategic points or […]
Why we should know Basics raw material of rigid or flexible PCB? In this paper, we are going to discuss three topics about the basic raw material. If you have read our share about Barrel V.S Base Copper, you may find the raw material has many common senses should know. You also can read this […]
The reason why we introduce Barrel and Base Copper In this paper, we are going to discuss Barrel V.S. Base Copper of flexible PCB. Those are the base definition of flexible PCB. But most of new guys don’t know much about it. That’s the reason why 4MCPCB expert summary article. The definition of Barrel of […]
The definition of Bare Board Before discuss bare board E-testing process, we should learn the definition of bare board first. Bare Board, simple says an unassembled PCB. A PCB has all lines, pads and layers intact, but without components installed. How to make a bare board ensure good? To most customers, bare board quality is […]
This paper will focus on discuss Different understanding of Motherboard between flexible PCB engineers with new guys. The name of Mother Board Motherboard, also called Backpanel, Backplane, back plane, or matrix board. In engineer communication, usually use mother board. The definition of Mother Board For normal people, the definition of mother board is below: The […]
The Definition of back-driving from Wikipedia A back-drive is a component used in reverse to obtain its input from its output. From this sentence, most professional engineer may can understand. But for most new PCB designers or normal people, the definition of back-driving also confuses. The simple understand of Back-driving So, 4MCPCB experts have summary […]
Why we should learn the B-stage definition? Recent weeks ago, some friends asked some B-stage of PCB board questions. Emma have searched on Google, but none good result,. Then ask some 4MCPCB colleague, then get some idea about the B – stage of PCB board. For most normal PCB guys, B-stage is a strange definition. […]