Invention Grant
- Patent Title: Self-polarized mask and self-polarized mask application
- Patent Title (中): 自偏振掩模和自偏振掩模应用
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Application No.: US13565080Application Date: 2012-08-02
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Publication No.: US08795930B2Publication Date: 2014-08-05
- Inventor: Sanggil Bae , Ki Young Lee , Tony Joung
- Applicant: Sanggil Bae , Ki Young Lee , Tony Joung
- Applicant Address: KY Grand Cayman
- Assignee: GlobalFoundries Inc.
- Current Assignee: GlobalFoundries Inc.
- Current Assignee Address: KY Grand Cayman
- Agency: Ditthavong & Steiner, P.C.
- Main IPC: G03F1/50
- IPC: G03F1/50 ; G02B27/28

Abstract:
A self-polarized mask is provided including a transparent substrate, first and second layers of polarization material consecutively provided on the transparent substrate and polarized in a first and a second direction, respectively. A first region is provided that extends in the first direction and contains only the first layer and no second layer, a second region is provided that extends in the second direction and contains only the second layer and no first layer. Embodiments include exposing a photoresist to light through the mask such that light polarized in the first direction passes through the mask in the first region to expose a first-directional region of the photoresist layer used to form a first-directional semiconductor device structure, and light polarized in the second direction passes through the mask in the second region to expose a second-directional region of the photoresist layer used to form a second-directional semiconductor device structure.
Public/Granted literature
- US20140038089A1 SELF-POLARIZED MASK AND SELF-POLARIZED MASK APPLICATION Public/Granted day:2014-02-06
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