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Advantages and disadvantages of PCB SMT stencil processing methods

Advantages and disadvantages of PCB SMT stencil processing methods

Mar 23 2020

Advantages and disadvantages of PCB SMT stencil processing methods The original SMT stencil manufacturing process was mainly made of photographic plates, and then by chemical etching. Of course, there are laser cutting processing methods or electroforming processing methods for processing SMT steel mesh plates. In the process of continuous production and processing of SMT stencils, […]

Why do PCB circuit boards have impedance

Why do PCB circuit boards have impedance

Mar 23 2020

First, why do PCB circuit boards have impedance?pcb circuit board impedance refers to the parameters of resistance and reactance, which hinders AC power. In pcb circuit board production, impedance processing is essential. The reasons are as follows: 1. The PCB circuit (bottom) should consider plug-in installation of electronic components, and consider the issues of electrical […]

What is stepped stencil

What is stepped stencil

Mar 23 2020

Ladder stencil is made of two or more thicknesses on the same screen. In order to cope with all large and small electronic parts appearing on the same circuit board at the same time, but also to obtain good soldering quality. We usually need to print different solder paste thicknesses on the same stencil so […]

Solder Mask Definition BGA

Solder Mask Definition BGA

Mar 19 2020

As electronic product designs become more and more sophisticated and packaging difficulties increase, the improvement of SMT chip yields has become one of the key points in reducing the cost of hardware manufacturing. BGA, IC, etc. in PCBA are the key devices. The success rate of these devices during soldering is the key point. PCB […]