Invention Grant
- Patent Title: Component carrier with bridge structure in through hole fulfilling minimum distance design rule
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Application No.: US16751024Application Date: 2020-01-23
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Publication No.: US11546990B2Publication Date: 2023-01-03
- Inventor: Mikael Tuominen
- Applicant: AT&S Austria Technologie & Systemtechnik Aktiengesellschaft
- Applicant Address: AT Leoben
- Assignee: AT&S Austria Technologie & Systemtechnik Aktiengesellschaft
- Current Assignee: AT&S Austria Technologie & Systemtechnik Aktiengesellschaft
- Current Assignee Address: AT Leoben
- Agency: Smith Tempel Blaha LLC
- Agent Robert A. Blaha
- Priority: CN201910100374.3 20190131
- Main IPC: H05K1/00
- IPC: H05K1/00 ; H05K1/02 ; H05K1/03 ; H05K1/11 ; H05K1/14 ; H05K1/16 ; H05K3/00 ; H05K3/10 ; H05K3/42 ; H05K3/46 ; H05K3/40 ; H05K1/09

Abstract:
A component carrier with an electrically insulating layer structure has opposed main surfaces, a through-hole, and an electrically conductive bridge structure connecting opposing sidewalls delimiting the through-hole. The sidewalls have a first tapering portion extending from a first main surface and a second tapering portion extending from a second main surface. A first demarcation surface faces the first main surface and a second demarcation surface faces the second main surface. A central bridge plane extends parallel to the first main surface and the second main surface and is at a vertical center between a lowermost point of the first demarcation surface and an uppermost point of the second demarcation surface. A first intersection point is between the central bridge plane and one of the sidewalls delimiting the through hole. A length of a shortest distance from the first intersection point to the first demarcation surface is at least 8 μm.
Public/Granted literature
- US20200253050A1 Component Carrier With Bridge Structure In Through Hole Fulfilling Minimum Distance Design Rule Public/Granted day:2020-08-06
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