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Half-hole Design of Circuit Board
The metalized half-hole means that after drill hole (drill, gong groove), then the 2nd drilled and shaped, and finally half of the metalized hole (groove) is retained. In order to control the production of metal half-hole boards, circuit board manufacturers usually take some measures due to process problems at the intersection of metallized half-holes and non-metallized holes. Metallized half-hole...
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High-precision circuit board technology
High precision circuit board refers to the use of fine line width/spacing, tiny holes, narrow ring width (or no ring width), and buried and blind holes to achieve high density. And high precision means that the result of "thin, small, narrow, thin" will inevitably bring high precision requirements, take the line width as an example: O. 20mm line width, according to the regulations to produce O. 16...
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Several Basic Factors Affecting Electroplating Hole Filling Process in PCB Production
The output value of the global electroplating PCB industry has grown rapidly in the total output value of the electronic component industry. It is the industry with the largest proportion in the electronic component subdivision industry and occupies a unique position. The annual output value of electroplating PCB is 60 billion US dollars. The volume of electronic products is becoming more and more...
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