Invention Grant
- Patent Title: Component carrier with electrically conductive layer structures having windows defined by a conformal mask and tapering at least partially
-
Application No.: US16949203Application Date: 2020-10-20
-
Publication No.: US11452212B2Publication Date: 2022-09-20
- Inventor: Mikael Tuominen , Seok Kim Tay , Sally Sun
- Applicant: AT&S (China) Co. Ltd.
- Applicant Address: CN Shanghai
- Assignee: AT&S (China) Co. Ltd.
- Current Assignee: AT&S (China) Co. Ltd.
- Current Assignee Address: CN Shanghai
- Agency: Smith Tempel Blaha LLC
- Agent Robert A. Blaha
- Priority: CN201921792173.6 20191023
- Main IPC: H05K1/11
- IPC: H05K1/11 ; H05K3/00 ; H05K3/42 ; H05K1/18

Abstract:
A component carrier includes an electrically insulating layer structure, a first electrically conductive layer structure, a second electrically conductive layer structure, and a laser through-hole with an electrically conductive medium filling at least part of the through-hole. The first electrically conductive layer structure covers a first side of the electrically insulating layer structure and has a first window extending through the first electrically conductive layer structure formed by etching using a conformal mask. The second electrically conductive layer structure covers an opposed side of the electrically insulating layer structure and has a second window extending through the second electrically conductive layer structure formed by etching using a conformal mask. The laser through-hole extends through the electrically insulating layer structure. At least a portion of at least one sidewall of the electrically conductive layer structures delimiting the windows is tapered.
Public/Granted literature
Information query