HDI PCB Mid-Year Sale

In order to return the trust of new and old customers to Guangzhou Jujin Technology, we decided to carry out a mid-year promotion in June.

Guangzhou Jujin Technology May Day holiday notice

Respected customers: Our holiday period is May 1-3, and we will work normally on May 4. Please arrange your order time. Please be aware that during the holiday period, business will be taken normally and delivery will be delayed! Happy Cinco de Mayo from Guangzhou Jujin Technology!

PCB impedance and loss change how to calculate, do you know all?

In general there are two main rules to follow for stacked design: 1. Each alignment layer must have an adjacent reference layer (power or ground); 2. The adjacent main power and ground layers are to be kept at a minimum distance to provide a large coupling capacitance. Here is an example of a stack from…