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2022-03-25

How to Deal With Virtual Welding and Cold Welding Defects Caused by SMT Patch

Welding defects such as virtual welding and cold welding sometimes occur in electronic processing. These permissions will lead to poor welding of SMT patches. How to […]

2022-03-24

Electrochemical Copper-Free Process (2)

B. Charge Adjustment or Whole Hole A typical charge adjustment process is used after degreasing. Generally, in the production of some special boards and multi-layer […]

2022-03-24

Detailed Explanation of The Copper Sinking Process of PCB Processing

Process introduction and technical point analysis of circuit board copper sinking process: Electroless copper is widely used in the production and processing of printed circuit boards […]

2022-03-24

Electrochemical Copper-Free Process (1)

Electrochemical Copper-Free Process: The main purpose of the preprocessing step: 1. To ensure the continuous integrity of the electroless copper deposition layer. 2. Ensure the bonding […]