Invention Grant
- Patent Title: Formable shielding film
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Application No.: US15352862Application Date: 2016-11-16
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Publication No.: US10652996B2Publication Date: 2020-05-12
- Inventor: Chun-Ming Chiu , Wei-Yu Chen , I-Liang Lee
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN St. Paul
- Agent Jonathan L. Tolstedt
- Main IPC: H05K1/02
- IPC: H05K1/02 ; H05K3/28 ; H05K9/00 ; H05K1/18

Abstract:
A shielding film comprises multiple layers including one or more of a structured adhesive layer, an electrically conductive layer, an electrically insulative thermally conductive layer, and an electrically conductive adhesive layer. The electrically conductive shielding layer extends laterally beyond the structured adhesive layer. The electrically insulative thermally conductive layer is disposed between the electrically conductive shielding layer and the structured adhesive layer and is coextensive with the structured adhesive layer. The electrically conductive adhesive layer is disposed between the electrically conductive shielding layer and the thermally conductive layer and is coextensive with the electrically conductive shielding layer. When the multilayer shielding film is placed on an electronic device mounted on a circuit board and under application of one or more of heat, vacuum, and pressure, the multilayer shielding film conforms to the electronic device and the electrically conductive adhesive layer adheres to the circuit board providing a seal between the multilayer shielding film and the circuit board.
Public/Granted literature
- US20170181268A1 FORMABLE SHIELDING FILM Public/Granted day:2017-06-22
Information query