Invention Grant
- Patent Title: Buried MIM capacitor structure with landing pads
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Application No.: US16710781Application Date: 2019-12-11
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Publication No.: US11081542B2Publication Date: 2021-08-03
- Inventor: Alexander Reznicek , Praneet Adusumilli , Oscar van der Straten , Joshua Rubin
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Agent Randall Bluestone
- Main IPC: H01L49/02
- IPC: H01L49/02 ; H01L23/535 ; H01L21/768 ; H01L27/06 ; H01L27/108 ; H01L29/06 ; H01L23/522

Abstract:
A buried metal-insulator-metal (MIM) capacitor with landing pads is formed between first and second semiconductor substrates. The landing pads provide increased area for contacting which may decrease the contact resistors of the capacitor. The area of the buried MIM capacitor can be varied to provide a tailored capacitance. The buried MIM capacitor is thermally stable since the MIM capacitor includes refractory metal or metal alloy layers as the capacitor plates.
Information query
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