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:
Jun. 26, 2018
Filed:
Dec. 14, 2017
Avary Holding (Shenzhen) Co., Limited, Shenzhen, CN;
Hongqisheng Precision Electronics (Qinhuangdao) Co., Ltd., Qinhuangdao, CN;
Meng-Lu Jia, Shenzhen, CN;
Hai-Bo Qin, Shenzhen, CN;
Avago Holding (Shenzhen) Co., Limited., Shenzhen, CN;
HongQiSheng Precision Electronics (QinHuangDao) Co, Qinhuangdao, CN;
Abstract
A circuit board comprises a third conductive circuit layer, a third insulating layer, a first insulating layer, a first conductive circuit layer, a substrate, a second conductive circuit layer, a second insulating layer, a fourth insulating layer, and a fourth conductive circuit layer in that order from top to bottom. The circuit board defines at least one first conductive hole and at least one second conductive hole. Each one of the first conductive hole comprises a first conductive blind hole, and a third conductive blind hole aligned with and electrically connected to the first conductive blind hole. Each one of the second conductive hole comprises a second conductive blind hole, and a fourth conductive blind hole aligned with and electrically connected to the second conductive blind hole. A method for making the circuit board is also provided.