A printed circuit board, or PCB, is an integral part of electronics. A PCB is basically a substrate (normally made from glass epoxy) with conductive traces etched from copper sheets. These copper traces facilitate flow of electricity. SMD Electronic components are soldered along this conductive pathway thus controlling the flow and quantity of electricity needed.
A Printed Circuit Board is also known as Printed Wiring Board (PWB). When all the electronic components are soldered on a PCB, it is called a Printed Circuit Assembly or PCA and sometimes PCBA (Printed Circuit Board Assembly).
Problems Caused by Wrong Selection of PCB for SMT
Wrong selection of PCB for SMT can lead to solder joint cracking problems.
There are three different approaches to solder joint cracking problems:
Using a substrate with a compatible CTE;
Using a compliant top layer substrate; and
Replacing leadless ceramic packages with leaded ones.
The most widely used substrate for SMT Printed Circuit Boards, is glass epoxy. It entails no CTE compatibility problems when used for plastic surface mount packages. However, this provides a solution for commercial applications only.
NeoDen provide a full smt assembly line solutions, including SMT reflow oven, wave soldering machine, pick and place machine, solder paste printer, PCB loader, PCB unloader, chip mounter, SMT AOI machine, SMT SPI machine, SMT X-Ray machine, SMT assembly line equipment, PCB production Equipment smt spare parts etc any kind SMT machines you may need, please contact us for more information:
Hangzhou NeoDen Technology Co.,Ltd
Add: Building 3,Diaoyu Industrial and Technology Park,No.8-2,Keji Avenue, Yuhang District, Hangzhou，China
Contact us: Steven Xiao
E-mail:steven@neodentech.com
Phone:86-18167133317
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