Invention Grant
- Patent Title: Die bonding material, light-emitting device, and method for producing light-emitting device
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Application No.: US16851330Application Date: 2020-04-17
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Publication No.: US11315899B2Publication Date: 2022-04-26
- Inventor: Akiko Umeda , Manabu Miyawaki , Hidekazu Nakayama , Hiroki Inoue , Toshifumi Imura
- Applicant: LINTEC CORPORATION , NICHIA CORPORATION
- Applicant Address: JP Tokyo; JP Tokushima
- Assignee: LINTEC CORPORATION,NICHIA CORPORATION
- Current Assignee: LINTEC CORPORATION,NICHIA CORPORATION
- Current Assignee Address: JP Tokyo; JP Tokushima
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JPJP2019-079617 20190418
- Main IPC: H01L23/00
- IPC: H01L23/00 ; H01L33/62 ; C09J183/04 ; C08G77/388

Abstract:
The present invention provides a die bonding material containing the following component (A) and a solvent and having a refractive index (nD) at 25° C. of 1.41 to 1.43 and a thixotropic index of 2 or more, a light-emitting device including an adhesive member derived from the die bonding material, and a method for producing the light-emitting device. The die bonding material of the present invention is preferably used for fixing a light emitting element at a predetermined position.
Component (A): a curable polysilsesquioxane compound having a repeating unit represented by the following formula (a-1) and satisfying predetermined requirements related to 29Si-NMR and mass average molecular weight (Mw) R1-D-SiO3/2 (a-1) [wherein R1 represents a fluoroalkyl group represented by a compositional formula: CmH(2m−n+1)Fn; m represents an integer of 1 to 10, and n represents an integer of 2 to (2m+1); and D represents a linking group (excluding an alkylene group) for connecting R1 and Si, or a single bond].
Component (A): a curable polysilsesquioxane compound having a repeating unit represented by the following formula (a-1) and satisfying predetermined requirements related to 29Si-NMR and mass average molecular weight (Mw) R1-D-SiO3/2 (a-1) [wherein R1 represents a fluoroalkyl group represented by a compositional formula: CmH(2m−n+1)Fn; m represents an integer of 1 to 10, and n represents an integer of 2 to (2m+1); and D represents a linking group (excluding an alkylene group) for connecting R1 and Si, or a single bond].
Public/Granted literature
- US20200335471A1 DIE BONDING MATERIAL, LIGHT-EMITTING DEVICE, AND METHOD FOR PRODUCING LIGHT-EMITTING DEVICE Public/Granted day:2020-10-22
Information query
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