Invention Grant
- Patent Title: Multifunction single via patterning
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Application No.: US16720261Application Date: 2019-12-19
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Publication No.: US11646222B2Publication Date: 2023-05-09
- Inventor: Effendi Leobandung
- 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: Tutunjian & Bitetto, P.C.
- Agent Randy Emilio Tejeda
- The original application number of the division: US16126178 2018.09.10
- Main IPC: H01L21/60
- IPC: H01L21/60 ; H01L21/768

Abstract:
A semiconductor device includes a plurality of storage elements formed on conductive structures and a cap layer located over the storage elements and the conductive structures. It further includes an interlevel dielectric (ILD) layer over the cap layer, where the ILD layer comprises trenches reaching a top portion of the storage elements, and via openings. The device also has a conductive material formed in the trenches and the via openings, where the conductive material makes contact with the storage elements and forms interlevel vias in the via openings.
Information query
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