Monthly Archives: November 2018

Reasons and countermeasures of PCB size shrinkage From the substrate once the inner layer of the line pattern transfer by several times until the outer layer of the lamination line graphics processing, will cause the puzzle warp and weft to different expansion. From the entire PCB production FLOW-CHART we [...]

Improvement method of hole/permeation problem when using PCB dry film Dry film masking holes appear broken Many customers believe that after the occurrence of broken holes, the film temperature and pressure should be increased to enhance the bonding force. In fact, this view is incorrect. Because the temperature and [...]

First, the definition of the processing level is not clear The single-panel design is in the TOP layer. If you do not explain the positive and negative, you may make the board and install the device without soldering. Second, the large area of copper foil is too close to [...]

Three common drilling methods for PCB Let us first introduce the common holes in the PCB: through holes, blind holes, buried holes. The meaning and characteristics of these three holes. Via (VIA), a common hole used to turn on or connect copper foil traces between conductive patterns in different [...]

As human requirements for living environments continue to increase, the environmental issues involved in PCB production are also receiving increasing attention. Especially the topic of lead and bromine is the hottest; The most basic purpose of PCB surface treatment is to ensure good solderability or electrical properties. Since copper [...]

Several ways of classifying PCB With the rapid development of 3C products and the electronicization of traditional home appliances, the application range of printed circuit boards is becoming more and more extensive. Printed circuit board is generally referred to as PCB (PrintedCircuitBoard) or PWB (Printedwireboard). It is the basic [...]

Introduce the special routing skills of the three PCBs. The PCB LAYOUT trace will be explained from three aspects: right angle trace, differential trace, and a serpentine line: First, right angle routing (three aspects) The effect of the right-angled trace on the signal is mainly reflected in three aspects: [...]