The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2018
Filed:
Dec. 19, 2014
Guangzhou Fastprint Circuit Tech Co., Ltd., Guangzhou, CN;
Shenzhen Fastprint Circuit Tech Co., Ltd., Shenzen, CN;
Yixing Silicon Valley Electronics Technology Co., Ltd., Yixing, CN;
Xiaolang Ren, Guangzhou, CN;
Bei Chen, Guangzhou, CN;
Zhijun Zeng, Guangzhou, CN;
Wenjiao Xie, Guangzhou, CN;
YIXING SILICON VALLEY ELECTRONICS TECHNOLOGY CO., LTD., Yixing, CN;
GUANGZHOU FASTPRINT CIRCUIT TECH CO., LTD., Guangzhou, CN;
SHENZHEN FASTPRINT CIRCUIT TECH CO., LTD., Shenzen, CN;
Abstract
Disclosed is a drilling method for PCBs with high hole position precision, comprising: step 1 of fixing a PCB on a workbench; step 2 of pre-drilling a to-be-drilled portion of the PCB by using a short-blade drilling tool; and step 3 of deeply drilling the to-be-drilled portion which has been machined in step 2 by using along-blade drilling tool. The PCB is fixed in step 1 to prevent the PCB from moving during drilling which otherwise would affect the drilling precision; the to-be-drilled portion of the PCB is pre-drilled by using a short-blade drilling tool in step 2, and the short-blade drilling tool has a higher rigidity than along-blade drilling tool and thus will not easily slide at the moment of contacting the surface of the PCB; and the to-be-drilled portion which has been machined in step 2 is deep drilled by using the long-blade drilling tool in step 3, and the long-blade drilling tool has reduced sliding upon entry, thus guaranteeing the entry alignment of the long-blade drilling tool in the case of deep drilling, so that the drilled hole meets the requirement of high hole position precision for PCBs.