Invention Grant
US07871873B2 Method of forming fin structures using a sacrificial etch stop layer on bulk semiconductor material
有权
在体半导体材料上使用牺牲蚀刻停止层形成翅片结构的方法
- Patent Title: Method of forming fin structures using a sacrificial etch stop layer on bulk semiconductor material
- Patent Title (中): 在体半导体材料上使用牺牲蚀刻停止层形成翅片结构的方法
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Application No.: US12413174Application Date: 2009-03-27
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Publication No.: US07871873B2Publication Date: 2011-01-18
- Inventor: Witold Maszara , Ming-Ren Lin , Jin Cho , Zoran Krivokapic
- Applicant: Witold Maszara , Ming-Ren Lin , Jin Cho , Zoran Krivokapic
- Applicant Address: KY Grand Cayman
- Assignee: GLOBAL FOUNDRIES Inc.
- Current Assignee: GLOBAL FOUNDRIES Inc.
- Current Assignee Address: KY Grand Cayman
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: H01L21/00
- IPC: H01L21/00 ; H01L21/84 ; H01L21/336

Abstract:
A method of manufacturing semiconductor fins for a semiconductor device may begin by providing a bulk semiconductor substrate. The method continues by growing a layer of first epitaxial semiconductor material on the bulk semiconductor substrate, and by growing a layer of second epitaxial semiconductor material on the layer of first epitaxial semiconductor material. The method then creates a fin pattern mask on the layer of second epitaxial semiconductor material. The fin pattern mask has features corresponding to a plurality of fins. Next, the method anisotropically etches the layer of second epitaxial semiconductor material, using the fin pattern mask as an etch mask, and using the layer of first epitaxial semiconductor material as an etch stop layer. This etching step results in a plurality of fins formed from the layer of second epitaxial semiconductor material.
Public/Granted literature
- US20100248454A1 METHOD OF FORMING FIN STRUCTURES USING A SACRIFICIAL ETCH STOP LAYER ON BULK SEMICONDUCTOR MATERIAL Public/Granted day:2010-09-30
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