Circuit board high-precision back drilling method and circuit board
A circuit board, high-precision technology, applied in the direction of printed circuits, printed circuits, printed circuit components, etc., can solve the problem of low accuracy of back-drilled holes on circuit boards, and achieve the effect of improving the accuracy of back-drilled holes
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Embodiment 1
[0053] The circuit board high-precision back-drilling method provided in this embodiment is applied to the scene of drilling back-holes on the circuit board. By improving the method, the back-drilling positioning of the circuit board is improved, and the quality of the product is improved.
[0054] like figure 1 and figure 2 As shown, the circuit board high-precision back-drilling method of this embodiment includes the following steps:
[0055] S0100. Provide a circuit board; the circuit board includes a target area and a process area set around the target area; wherein, it should be noted that the board type of the circuit board can be as follows image 3 The rectangle shown in , can also be a non-standard shaped plate such as small waist type (large at both ends and small in the middle) or fish belly type (small at both ends and large in the middle);
[0056] S0110. Drill a first positioning hole 1 in the process area by an X-ray target drilling machine, and drill a throu...
Embodiment 2
[0088] The circuit board provided in this embodiment is produced by the high-precision back-drilling method of the circuit board as in the first embodiment. The process and technical effect of the high-precision back-drilling method for the circuit board are described in the first embodiment. The circuit board of this embodiment also has the technical effect, and has the advantage of high precision of the back-drilled holes.
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