Invention Grant
- Patent Title: Methods for producing integrated circuits using long and short regions and integrated circuits produced from such methods
- Patent Title (中): 使用长和短区域制造集成电路的方法和由这些方法制造的集成电路
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Application No.: US14795984Application Date: 2015-07-10
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Publication No.: US09583584B2Publication Date: 2017-02-28
- Inventor: Chanro Park , Injo Ok
- Applicant: GLOBALFOUNDRIES, INC. , International Business Machines Corporation
- Applicant Address: KY Grand Cayman US NY Armonk
- Assignee: GLOBALFOUNDRIES, INC.,INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: GLOBALFOUNDRIES, INC.,INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: KY Grand Cayman US NY Armonk
- Agency: Lorenz & Kopf, LLP
- Main IPC: H01L21/70
- IPC: H01L21/70 ; H01L29/49 ; H01L29/66 ; H01L21/82

Abstract:
Integrated circuits and methods for producing the same are provided. In an exemplary embodiment, a method for producing an integrated circuit includes forming a work function layer overlying a substrate and a plurality of dielectric columns. The dielectric columns and the substrate define a short region having a short region width and a long region having a long region width greater than the short region width. The work function layer is recessed in the long region to a long region work function height that is between a dielectric column top surface and a substrate top surface. The work function layer is also recessed in the short region to a short region work function height that is between the dielectric column top surface and the substrate top surface. Recessing the work function layer in the long and short regions is conducted in the absence of lithography techniques.
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