Invention Grant
- Patent Title: Methods for contact formation for 10 nanometers and beyond with minimal mask counts
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Application No.: US15289542Application Date: 2016-10-10
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Publication No.: US09793161B2Publication Date: 2017-10-17
- Inventor: Veeraraghavan S. Basker
- 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: Cantor Colburn LLP
- Agent Vazken Alexanian
- Main IPC: H01L21/768
- IPC: H01L21/768 ; H01L21/027 ; H01L21/308

Abstract:
A method of making a semiconductor device includes depositing a hard mask on a dielectric layer on a substrate, the dielectric layer being disposed around first, second, and third gates; removing a portion of the hard mask to form an opening that exposes the first, second, and third gates; forming a patterned soft mask on the first, second, and third gates within the opening, a first portion of the patterned soft mask being disposed on the first and second gates, and a second portion of the patterned soft mask being disposed on the second and third gates; removing portions of the dielectric layer to transfer the pattern of the patterned soft mask into the dielectric layer and form first and second contact openings between the first and second gates, and third and fourth contact openings between the second and third gates; and disposing a conductive material in the contact openings.
Public/Granted literature
- US20170092539A1 METHODS FOR CONTACT FORMATION FOR 10 NANOMETERS AND BEYOND WITH MINIMAL MASK COUNTS Public/Granted day:2017-03-30
Information query
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