Invention Grant
- Patent Title: Increased contact alignment tolerance for direct bonding
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Application No.: US15379942Application Date: 2016-12-15
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Publication No.: US09852988B2Publication Date: 2017-12-26
- Inventor: Paul M. Enquist , Gaius Gillman Fountain, Jr. , Javier A. DeLaCruz
- Applicant: INVENSAS BONDING TECHNOLOGIES, INC.
- Applicant Address: US CA San Jose
- Assignee: INVENSAS BONDING TECHNOLOGIES, INC.
- Current Assignee: INVENSAS BONDING TECHNOLOGIES, INC.
- Current Assignee Address: US CA San Jose
- Agency: Knobbe, Martens, Olson & Bear LLP
- Main IPC: H01L21/768
- IPC: H01L21/768 ; H01L23/522 ; H01L23/528 ; H01L25/065

Abstract:
A bonded device structure including a first substrate having a first set of conductive contact structures, preferably connected to a device or circuit, and having a first non-metallic region adjacent to the contact structures on the first substrate, a second substrate having a second set of conductive contact structures, preferably connected to a device or circuit, and having a second non-metallic region adjacent to the contact structures on the second substrate, and a contact-bonded interface between the first and second set of contact structures formed by contact bonding of the first non-metallic region to the second non-metallic region. The contact structures include elongated contact features, such as individual lines or lines connected in a grid, that are non-parallel on the two substrates, making contact at intersections. Alignment tolerances are thus improved while minimizing dishing and parasitic capacitance.
Public/Granted literature
- US20170179029A1 INCREASED CONTACT ALIGNMENT TOLERANCE FOR DIRECT BONDING Public/Granted day:2017-06-22
Information query
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