Invention Grant
- Patent Title: Circuit board structure with selectively corresponding ground layers
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Application No.: US15450204Application Date: 2017-03-06
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Publication No.: US09913369B2Publication Date: 2018-03-06
- Inventor: Chih-Heng Chuo , Kuo-Fu Su , Gwun-Jin Lin
- Applicant: ADVANCED FLEXIBLE CIRCUITS CO., LTD.
- Applicant Address: TW Zhongli
- Assignee: Advanced Flexible Circuits Co., Ltd.
- Current Assignee: Advanced Flexible Circuits Co., Ltd.
- Current Assignee Address: TW Zhongli
- Agency: Rosenberg, Klein & Lee
- Priority: TW105114348A 20160509
- Main IPC: H05K1/02
- IPC: H05K1/02 ; H05K1/03

Abstract:
A circuit board structure with selectively corresponding ground layers includes a first ground layer, a second ground layer, and a dielectric layer arranged between the first ground layer and the second ground layer to define a ground layer height difference between the first ground layer and the second ground layer. The first ground layer includes a plurality of non-electromagnetic shield areas. The circuit board includes a plurality of conductor wires formed thereon and selectively classified and divided into a first group of conductor wires and the second group of conductor wires. The first-group conductor wires are arranged to correspond to and electromagnetically couple to the first ground layer, and the second-group conductor wires are arranged to correspond to and electromagnetically couple to the second ground layer through the non-electromagnetic shield areas respectively, so that impedance value control is achieved.
Public/Granted literature
- US20170325331A1 CIRCUIT BOARD STRUCTURE WITH SELECTIVELY CORRESPONDING GROUND LAYERS Public/Granted day:2017-11-09
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