Invention Grant
- Patent Title: Method for forming hole plug
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Application No.: US14998135Application Date: 2015-12-23
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Publication No.: US10237983B2Publication Date: 2019-03-19
- Inventor: Shinichi Iketani , Dale Kersten
- Applicant: Sanmina Corporation
- Applicant Address: US CA San Jose
- Assignee: SANMINA CORPORATION
- Current Assignee: SANMINA CORPORATION
- Current Assignee Address: US CA San Jose
- Agency: Loza & Loza, LLP
- Agent Julio M. Loza
- Main IPC: H01K3/10
- IPC: H01K3/10 ; H05K3/42 ; H05K1/11 ; H05K3/00

Abstract:
A method for forming a hole plug in a laminate structure is provided. A laminate structure, is formed, including at least a dielectric layer and a first conductive foil on a first side of the dielectric layer. An unpierced or blind hole is formed in the laminate structure extending toward the first conductive foil from a second side of the dielectric layer and at least partially through the dielectric layer, the hole having a hole depth to hole diameter aspect ratio of less than twenty (20) to one (1). In yet another example, the hole aspect ratio may be less than one (1) to one (1). Via fill ink may then be deposited in the hole. The via fill ink is then dried and/or cured to form a hole plug.
Public/Granted literature
- US20160219703A1 Hole plug for thin laminate Public/Granted day:2016-07-28
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