Invention Grant
US08349740B2 Reduced topography-related irregularities during the patterning of two different stress-inducing layers in the contact level of a semiconductor device
有权
在半导体器件的接触电平中的两个不同的应力感应层的图案化期间减少了与地形相关的不规则性
- Patent Title: Reduced topography-related irregularities during the patterning of two different stress-inducing layers in the contact level of a semiconductor device
- Patent Title (中): 在半导体器件的接触电平中的两个不同的应力感应层的图案化期间减少了与地形相关的不规则性
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Application No.: US12623493Application Date: 2009-11-23
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Publication No.: US08349740B2Publication Date: 2013-01-08
- Inventor: Ralf Richter
- Applicant: Ralf Richter
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee: GLOBALFOUNDRIES Inc.
- Current Assignee Address: KY Grand Cayman
- Agency: Williams, Morgan & Amerson, P.C.
- Priority: DE102008059649 20081126
- Main IPC: H01L21/311
- IPC: H01L21/311

Abstract:
In sophisticated semiconductor devices, stress-inducing materials may be provided above the basic transistor devices without any etch control or etch stop materials, thereby enabling an efficient de-escalation of the surface topography, in particular above field regions including closely spaced polysilicon lines. Furthermore, an additional stress-inducing material may be provided on the basis of the superior surface topography, thereby providing a highly efficient strain-inducing mechanism in performance-driven transistor elements.
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