- Patent Title: Wiring board with stacked embedded capacitors and method of making
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Application No.: US15040564Application Date: 2016-02-10
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Publication No.: US09743526B1Publication Date: 2017-08-22
- Inventor: Edmund Blackshear , Keiichi Hirabayashi , Yoichi Miyazawa , Brian W. Quinlan , Junji Sato
- Applicant: International Business Machines Corporation , SHINKO ELECTRIC INDUSTRIES CO., LTD
- Applicant Address: US NY Armonk JP Nagano-Shi
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION,SHINKO ELECTRIC INDUSTRIES CO. LTD
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION,SHINKO ELECTRIC INDUSTRIES CO. LTD
- Current Assignee Address: US NY Armonk JP Nagano-Shi
- Agency: Cantor Colburn LLP
- Agent Steven Meyers
- Main IPC: H05K1/18
- IPC: H05K1/18 ; H05K3/32 ; H05K3/40 ; H05K1/11 ; H05K3/46 ; H05K3/00 ; H05K1/02

Abstract:
A method of making a wiring board includes forming a first capacitor carrier layer with a first embedded chip capacitor, a first insulation layer disposed on an upper surface, a second insulation layer disposed on a lower surface, first upper and lower conductive vias in conductive contact with a first electrode, and second upper and lower conductive vias in conductive contact with a second electrode. The method also includes forming a second capacitor carrier layer similar to the first. The method further includes forming a bonded laminate comprising in sequence an upper insulation layer, the first capacitor carrier layer, a center insulation layer, the second capacitor carrier layer, and a lower insulation layer. The method also includes forming a through-hole through the laminate and forming a conductive coating within the through-hole to provide a conductive through-hole. A wiring board also includes the bonded laminate and the embedded capacitors.
Public/Granted literature
- US20170231094A1 WIRING BOARD WITH STACKED EMBEDDED CAPACITORS AND METHOD OF MAKING Public/Granted day:2017-08-10
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