source:Industry News release time:2022-05-06 Article author:yu Popular:pcb
PCB drilling is a process of PCB pattern making, and it is also a very important step. The main purpose is to make holes for the board, the wiring needs to be punched, a via hole needs to be punched, the structure needs to be punched for positioning or something; the punching of the multi-layer board is not done at one time, some holes are buried in the circuit board, and some are just The board is open, so there will be one drill and two drills. This article first introduces the use of the PCB drilling process, secondly describes the PCB drilling process and process capabilities, and finally introduces the PCB drilling process faults and solutions.
What is the use of the PCB drilling process The hole is plated with copper to connect the layers of the circuit. There are also some drill holes for screw holes, positioning holes, row holes, etc., and their uses are different.
Drilling is to drill the required vias on the CCL. Through-hole vias mainly provide electrical connection and are used for fixing or positioning of devices.
PCB vias are divided into metallization or not
a. Electroplated hole (PTH), also called metallized hole
b. Non-plated hole NPTH): also called non-metallized hole
Divided by process
a. Blind hole (multilayer board)
b. Buried hole (multilayer board)
PCB board drilling process
1. Drilling process of multi-layer board
2. Drilling process of double-sided board
PCB board drilling process process capability
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