Method for realizing welding between soft base chip circuit board and metal base body without special tool
A metal substrate and welding method technology, which is applied in the field of welding soft substrate circuit boards and metal substrates without special tooling, can solve problems such as increased production costs, difficult production site management, and unstable products, and reduce production costs. , Eliminate the design of special tooling and outsourcing processing processes, and ensure the effect of consistency
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[0019] see figure 1 , figure 2 . The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0020] Design of exhaust through holes on the flexible substrate circuit board: metallization of φ0.3mm~φ0.8mm is set in the metal grounding area of the 3 metal grounding area of the flexible substrate circuit board, and the hole density is 0.6cm 2 3 to 4 exhaust through holes are evenly distributed in any 10mm diameter plane, and the hole spacing can be in accordance with the general design control requirements. The center and surrounding areas of the soft substrate printed circuit board 3 should be designed as many grounding holes as possible.
[0021] Tin lining on the back of the soft substrate circuit board 3: The soft substrate circuit board 3 obtained by molding the circuit pattern is more or less warped or uneven in shape. , the hardness of the circuit of the soft substrate circuit board 3 can be increased, th...
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