Invention Grant
- Patent Title: Multilayer pattern transfer for chemical guides
- Patent Title (中): 化学导轨的多层图案转移
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Application No.: US13787090Application Date: 2013-03-06
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Publication No.: US09478506B2Publication Date: 2016-10-25
- Inventor: Richard A. Farrell , Gerard M. Schmid , Sudharshanan Raghunathan
- Applicant: GLOBALFOUNDRIES Inc.
- Applicant Address: KY Grand Cayman
- Assignee: GLOBALFOUNDRIES INC.
- Current Assignee: GLOBALFOUNDRIES INC.
- Current Assignee Address: KY Grand Cayman
- Agency: Williams Morgan, P.C.
- Main IPC: H01L21/311
- IPC: H01L21/311 ; H01L23/00 ; H01L21/308 ; H01L21/683 ; H01L21/768 ; H01L21/67

Abstract:
Approaches for multilayer pattern transfer for chemical guides are provided. In a typical embodiment, a device is formed by forming an etch mask layer (e.g., a nitride layer and an oxide layer) over a substrate (e.g., silicon (Si)). An orientation control layer (e.g., a neutral layer) is then formed over the etch mask layer, and an ARC layer (e.g., SiARC) is formed over the orientation control layer. In other embodiments, an organic planarization layer (OPL) and/or a protection layer may also be formed between the ARC layer and the orientation control layer. Regardless, a tapered etch profile/pattern may then be formed through the ARC and/or other layers.
Public/Granted literature
- US20140252660A1 MULTILAYER PATTERN TRANSFER FOR CHEMICAL GUIDES Public/Granted day:2014-09-11
Information query
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