Invention Application
- Patent Title: METHODS & STRUCTURES FOR IMPROVED ELECTRICAL CONTACT BETWEEN BONDED INTEGRATED CIRCUIT INTERFACES
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Application No.: US17677858Application Date: 2022-02-22
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Publication No.: US20220181251A1Publication Date: 2022-06-09
- Inventor: Richard Vreeland , Colin Carver , William Brezinski , Michael Christenson , Nafees Kabir
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Main IPC: H01L23/528
- IPC: H01L23/528 ; H01L23/532 ; H01L23/00 ; H01L21/768

Abstract:
Composite integrated circuit (IC) device structures that include two components coupled through hybrid bonded interconnect structure. The two components may be two different monolithic IC structures (e.g., chips) that are bonded over a substantially planar dielectric and metallization layer. A surface of a metallization feature may be augmented with supplemental metal, for example to at least partially backfill a recess in a surface of the metallization feature as left by a planarization process. In some exemplary embodiments, supplemental metal is deposited selectively onto a metallization feature through an autocatalytic (electroless) metal deposition process. A surface of a dielectric material surrounding a metallization feature may also be recessed, for example to at least partially neutralize a recess in an adjacent metallization feature, for example resulting from a planarization process.
Public/Granted literature
- US11784123B2 Methods and structures for improved electrical contact between bonded integrated circuit interfaces Public/Granted day:2023-10-10
Information query
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