Invention Grant
- Patent Title: High power dielectric carrier with accurate die attach layer
- Patent Title (中): 高功率电介质载体,具有精确的芯片附着层
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Application No.: US13896356Application Date: 2013-05-17
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Publication No.: US09196602B2Publication Date: 2015-11-24
- Inventor: Yuxing Ren , Ziyang Gao
- Applicant: Hong Kong Applied Science and Technology Research Institute Company Limited
- Applicant Address: CN Hong Kong Science Park, Shatin, New Territories, Hong Kong
- Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
- Current Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
- Current Assignee Address: CN Hong Kong Science Park, Shatin, New Territories, Hong Kong
- Agency: Ella Cheong Hong Kong
- Agent Sam T. Yip
- Main IPC: H01L23/00
- IPC: H01L23/00 ; H01L21/56 ; H01L23/13

Abstract:
A system for bonding a die to a high power dielectric carrier such as a ceramic dielectric core with double-sided conductive layers is described. In the system, the upper conductive layer has a first area whose surface has a first wettability. A second area that at least partially surrounds the first area has a surface with a second wettability that is greater than the first wettability. During bonding, an adhesive material bonding a chip to the substrate spreads among the first area by a downward force placed on the chip. Due to the difference in wettability, the adhesive material then spreads among the second area by a wetting force generated by the greater second wettability of the second area surface causing the chip to be drawn down until reaching a predetermined position. The predetermined position can be determined by substrate protrusions or substrate cavities.
Public/Granted literature
- US20140339709A1 HIGH POWER DIELECTRIC CARRIER WITH ACCURATE DIE ATTACH LAYER Public/Granted day:2014-11-20
Information query
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