FAQ

In the article “PCB Muscles and Bones”, we raised the issue of how to avoid the use of false eight-layer laminations, which would increase PCB costs when the board thickness is 1.6mm and above. I feel like everyone responded very enthusiastically, and it seems that this question is quite typical. I originally wanted to intercept some answers and put them here, but due to space constraints, you can go to the previous article and read the selected answers at the end of the article.

 

In this article, we put forward our own opinions based on our daily design experience. We hope to give you an answer and ask for your guidance and sharing.

 

What is the fake eighth floor?

 

Our conventional six-layer board lamination is composed of one core board (core) for L2-3, one core board for L4-5 (core), and the others are made of PP and copper foil, and are finally pressed together. As shown in Figure 1.