Invention Grant
- Patent Title: Carrier film for transferring microelement
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Application No.: US16766744Application Date: 2018-11-29
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Publication No.: US11458704B2Publication Date: 2022-10-04
- Inventor: Kwangseop Kim , Chan Kim , Min Ah Yoon , Jae Hyun Kim , Hyun June Jung , Hak Joo Lee
- Applicant: CENTER FOR ADVANCED META-MATERIALS
- Applicant Address: KR Daejeon
- Assignee: CENTER FOR ADVANCED META-MATERIALS
- Current Assignee: CENTER FOR ADVANCED META-MATERIALS
- Current Assignee Address: KR Daejeon
- Agency: Revolution IP, PLLC
- Priority: KR10-2017-0161923 20171129
- International Application: PCT/KR2018/014936 WO 20181129
- International Announcement: WO2019/107960 WO 20190606
- Main IPC: B32B7/022
- IPC: B32B7/022 ; B32B3/10 ; B32B7/12 ; H01L21/683 ; C09J7/20

Abstract:
The present invention relates to a carrier film for transferring a microelement, wherein, when a microelement is pressurized, a uniform pressurizing force is provided to the entire microelement, and a damage to the microelement can be prevented. The carrier film for transferring a microelement comprises: a load control layer having a first elastic modulus and having a space formed in a part of the interior thereof; and an adhesive layer having a second elastic modulus that is smaller than the first elastic modulus, the adhesive layer being provided on the upper portion of the load control layer and configured such that a microelement supposed to be transferred to a target substrate is attached thereto. The load control layer has a first zero-rigidity area that maintains a first stress in a first deformation range from a first strain to a second strain.
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