Invention Grant
- Patent Title: Borderless contacts in semiconductor devices
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Application No.: US13605144Application Date: 2012-09-06
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Publication No.: US08741752B2Publication Date: 2014-06-03
- Inventor: Su Chen Fan , David V. Horak , Sivananda K. Kanakasabapathy
- Applicant: Su Chen Fan , David V. Horak , Sivananda K. Kanakasabapathy
- 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: H01L21/28
- IPC: H01L21/28

Abstract:
A method includes depositing a dummy fill material over exposed portions of a substrate and a gate stack disposed on the substrate, removing portions of the dummy fill material to expose portions of the substrate, forming a layer of spacer material over the exposed portions of the substrate, the dummy fill material and the gate stack, removing portions of the layer of spacer material to expose portions of the substrate and the dummy fill material, depositing a dielectric layer over the exposed portions of the spacer material, the substrate, and the gate stack, removing portions of the dielectric layer to expose portions of the spacer material, removing exposed portions of the spacer material to expose portions of the substrate and define at least one cavity in the dielectric layer, and depositing a conductive material in the at least one cavity.
Public/Granted literature
- US20130023115A1 Borderless Contacts in Semiconductor Devices Public/Granted day:2013-01-24
Information query
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