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2022-03-02

Surface Treatment of PCB Board Surface: Introduction of Horizontal Spray Tin SMOBC&HAL (2)

Pre-Cleaning Treatment: It is mainly to clean the copper surface by micro-etching. The depth of micro-etching is generally 0.75-1.0 microns. At the same time, the attached […]

2022-03-02

Surface Treatment of PCB Board Surface: Introduction of Horizontal Spray Tin SMOBC&HAL (1)

As one of the most common surface coating forms for circuit board surface treatment, tin spray (SMOBC & HAL) is widely used in circuit production. The […]

2022-03-01

Causes and Elimination of Faults in Electroplating Nickel Process

Causes and Elimination of Faults in PCB Electroplating Nickel Process: a) Makeng: Makeng is the result of organic pollution. Large hemp pits usually indicate oil contamination. […]

2022-03-01

Introduction to Advanced PCB Technology (2)

C. Fine line production technology Another feature of high-density PCB circuit boards is that they have very small line widths and line spacings. To make lines […]