Invention Grant
- Patent Title: Gate contact over active region in cell
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Application No.: US17070335Application Date: 2020-10-14
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Publication No.: US11424336B2Publication Date: 2022-08-23
- Inventor: Richard T. Schultz
- Applicant: Advanced Micro Devices, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Kowert Hood Munyon Rankin and Goetzel PC
- Agent Rory D. Rankin
- Main IPC: H01L29/00
- IPC: H01L29/00 ; H01L29/423 ; H01L21/768 ; H01L23/535 ; H01L27/02 ; H01L29/66 ; H01L29/786

Abstract:
A system and method for laying out power grid connections for standard cells are described. In various implementations, gate metal is placed over non-planar vertical conducting structures, which are used to form non-planar devices (transistors). Gate contacts connect gate metal to gate extension metal (GEM) above the gate metal. GEM is placed above the gate metal and makes a connection with gate metal through the one or more gate contacts. Gate extension contacts are formed on the GEM above the active regions. Similar to gate contacts, gate extension contacts are formed with a less complex fabrication process than using a self-aligned contacts process. Gate extension contacts connect GEM to an interconnect layer such as a metal zero layer. Gate extension contacts are aligned vertically with one of the non-planar vertical conducting structures. Therefore, in an implementation, one or more gate extension contacts are located above the active region.
Public/Granted literature
- US20210028288A1 GATE CONTACT OVER ACTIVE REGION IN CELL Public/Granted day:2021-01-28
Information query
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