Invention Grant
- Patent Title: Method of creating photolithographic masks for semiconductor device features with reduced design rule violations
- Patent Title (中): 为减少设计规则违规而制造半导体器件特征的光刻掩模的方法
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Application No.: US12617421Application Date: 2009-11-12
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Publication No.: US08219939B2Publication Date: 2012-07-10
- Inventor: Richard Schultz , James Pattison
- Applicant: Richard Schultz , James Pattison
- Applicant Address: US TX Austin
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US TX Austin
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: G06F17/50
- IPC: G06F17/50

Abstract:
A method of creating photolithographic masks for semiconductor device features with reduced design rule violations is provided. The method begins by providing preliminary data that represents an overall mask pattern. The preliminary data is processed to decompose the overall mask pattern into a plurality of component mask patterns. Next, a design rule check is performed on the plurality of component mask patterns to identify tip-to-tip and tip-to-line violations in the plurality of component mask patterns. The method continues by modifying at least one of the plurality of component mask patterns in accordance with the identified violations to obtain a modified set of component mask patterns, wherein each mask pattern in the modified set of component mask patterns is void of tip-to-tip and tip-to-line violations. Photolithographic masks are then created for the modified set of component mask patterns.
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