PCB short slot hole drilling process

• Main Authors: LI QINYUAN, ZHONG GENDAI, HE DONG, FLING TSENG
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

The invention relates to the technical field of PCB processing, and particularly discloses a PCB short slot hole drilling process. The technology is used for drilling short slotted holes in a PCB and comprises the following steps that the PCB and an aluminum sheet are sequentially stacked on a workbench from bottom to top; the aluminum sheet and the PCB are drilled from top to bottom through a drilling tool, and a first groove hole is drilled in the PCB; retracting the drilling tool, and stacking a cover plate on the aluminum sheet; the cover plate, the aluminum sheet and the PCB are drilled from top to bottom through a drilling tool, a second slotted hole is drilled in the PCB, and the second slotted hole is communicated with the first slotted hole; retracting the drilling tool, and taking down the cover plate; and a drilling tool is used for stacked drilling in the length direction of the short slotted hole. According to the process, through the mode of overlaying the cover plates, the problem that the dril