Invention Grant
- Patent Title: Thermal management solutions for stacked integrated circuit devices using unidirectional heat transfer devices
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Application No.: US15970420Application Date: 2018-05-03
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Publication No.: US11234343B2Publication Date: 2022-01-25
- Inventor: Feras Eid , Adel Elsherbini , Johanna Swan
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Essential Patents Group, LLP.
- Main IPC: H05K7/20
- IPC: H05K7/20 ; H01L25/065 ; H01L23/427 ; H01L23/367 ; H01L23/00

Abstract:
An integrated circuit structure may be formed having a first integrated circuit device, a second integrated circuit device electrically coupled to the first integrated circuit device, and at least one unidirectional heat transfer device between the first integrated circuit device and the second integrated circuit device. In one embodiment, the unidirectional heat transfer device may be oriented such that it has a higher conductivity in the direction of heat transfer from the first integrated circuit device to the second integrated circuit device than it does in the opposite direction. When the temperature of the second integrated circuit device rises above the temperature of the first integrated circuit device, the unidirectional heat transfer device will act as a thermal insulator, and when the temperature of the first integrated circuit device rises above the temperature of the second integrated circuit device, the unidirectional heat transfer device will act as a thermal conductor.
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