Category Archives: Industry News

PCB etching processing and processing control

The process of printing a circuit board, from a bare board to displaying a circuit pattern, is a relatively complex process of physical and chemical reactions. This article analyzes the final step-etching processing. Currently, the typical process for, printed circuit board (PCB) manufacturing, is “graphic plating”. That is, firstly, a layer of lead-tin resist is […]

Rigid flex Board: Control Points Analysis of Design and Production

Preface Rigid-flex board is a new type of printed circuit board that has both the durability of rigid PCB and the adaptability of flexible PCB. Among all types of PCBs, the combination of rigid and flexible is the strongest resistance to harsh application environments. Favored by manufacturers of medical and military equipment, Chinese companies are […]

The development trend of PCB technology

PCB products, whether rigid PCB, flexible PCB, rigid-flex PCB, multi-layer PCB, and module substrates for IC package substrates, make a significant contribution to high-end electronic equipment. PCB industry plays an important role in electronic interconnection technology. This article makes the following analysis on the current development trend of PCB technology: 1. Development towards the road […]

A common question about prepreg thickness

Our customers could define the prepreg thickness and type in fabrication spec. If we do not have prepreg with the required thickness or types, we will make a very small change(by Engineering Query) to meet the layer stack-up and impedance requirements. Today our customer(Poland) told me that he is designing an 8 layer PCB that […]

How to choose material for layer stack-up of multilayer PCB?

When someone works on a multilayer PCB project, they have to calculate a stack-up for that PCB. Some of them may have some questions about how to choose material for layer stack-up of multilayer PCB. For example, using Isola 370HR for a 4L project assumed the finished board thickness is 1.6mm+/-10%, we can choose cores […]

The differrence between PCB and PCBA

PCB is the short name by Printed Circuit Board. PCB mechanically supports and electrically connects electronic components or electrical components using conductive tracks, pads, and other features etched from one or more sheet layers of copper laminated onto and/or between sheet layers of a non-conductive substrate. (From Wikipedia) There are several types of PCBs such […]

The application of directional coupler

Directional coupler, a passive device used in radio technology.The application of directional coupler as below: 1) For power synthesis systems. In the multi-carrier frequency synthesis system, a directional coupler with 3dB is usually used. (generally called 3dB bridge) 2) For receiver’s anti-interference measurement or stray measurement. In the FR test and measurement system, if the […]