Invention Grant
- Patent Title: Stress relief encapsulation for flexible hybrid electronics
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Application No.: US16450631Application Date: 2019-06-24
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Publication No.: US10999926B2Publication Date: 2021-05-04
- Inventor: Weifeng Liu , William L. Uy , Dongkai Shangguan
- Applicant: Flex Ltd.
- Applicant Address: SG Singapore
- Assignee: Flex Ltd.
- Current Assignee: Flex Ltd.
- Current Assignee Address: SG Singapore
- Agency: Sheridan Ross P.C.
- Main IPC: H01L23/34
- IPC: H01L23/34 ; H01L23/48 ; H01L21/00 ; H05K1/02 ; H05K1/11 ; H05K3/28 ; H05K1/18 ; H05K1/14 ; H01L21/56 ; H01L51/00 ; H01L51/52 ; H05K1/03 ; H01L23/31

Abstract:
Methods, devices, and systems for producing a flexible electronic device that reduces stress and forces on electronic components are provided. In particular, one or more transition layers with intermediate flexibility, or flexural modulus, are positioned between rigid components and flexible outer layers. This gradually reduces the flexural modulus of the flexible electronics device rather than have an interface between a rigid material and a flexible material. Various materials and methods of forming the layers are described. In addition, an encapsulate layer can be cured to varying flexural moduli to gradually reduce the flexural moduli from the rigid component to the flexible outer layers or bulk structure of the flexible electronic device.
Information query
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