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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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PCB SURFACE FINISHING, ADVANTAGES AND DISADVANTAGES
Anyone involved within the printed circuit board (PCB) industry understand that PCBs have copper finishes on their surface. If they are left unprotected then the copper will oxidize and deteriorate, making the circuit board unusable. The surface finish forms a critical interface between the component and the PCB. The finish has two essential functions, to protect the exposed copper circuitry and t...
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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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