Harm of PCB board deformation: on the automatic surface mounting line, if the circuit board is not smooth, it will lead to inaccurate positioning, components can not be inserted or installed in the hole of the board and surface mounting pad, and even dama
Keyou Circuit is a dedicated to PCB rapid proofing and mass production, with high precision single side/double side/multilayer circuit board .
Common causes of PCB line break: 1, film process: 2, exposure process: 3, development process: 5, electroplating problems
Keyou Circuit is a professional production of high precision multilayer circuit board, module gold circuit board, car circuit board, car circuit board, traffic recorder,COB power supply, computer motherboard, medical circuit board, module board, thermoele
PCBA processing to avoid PCB board warping method:1. Reduce the influence of temperature on plate stress; 2. Adopt high Tg plate; 3. Increase the thickness of the circuit board, 4. Reduce the size of the circuit board and reduce the number of pieces of th
This article focuses on conductive holes, keyholes, and the connection between Protel 99 SE/pads/ and CAM350 geber files Conductive holes: via keyholes: pad is particularly prone to several problems
The plug technology meets the following requirements :1. Copper can be found in the through hole, but the plug cannot be used for resistance welding. 2. There must be tin lead in the through hole, with a certain thickness requirement (4 microns). Do not a
Purpose and precautions of reserved process edge in PCB design: Reserved process edge is the part added on both sides or four sides of PCB board to assist patch plug-in welding, which is mainly to assist production and does not belong to the PCB board. It
Analysis of the deformation causes of PCB board in the process of processing: 1. Incoming material of copper clad plate: 2. Pressing: 3. Welding resistance, character and other baking process: 4. Hot air solder leveling: 5. Storage
PCB board test system will have a new design idea, the use of automatic test system based on USB bus and virtual instrument design idea, give full play to the role of the computer
new energy electric vehicles, module board, industrial control circuit board, medical circuit board, intelligent security PCB board, automotive electronic communication circuit board
Many manufacturers are using ceramic COBs to process LED, because this can further reduce the cost of LED energy-saving lamps.
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