Invention Grant
- Patent Title: Methods for fabrication of an air gap-containing interconnect structure
- Patent Title (中): 用于制造含气隙的互连结构的方法
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Application No.: US14157098Application Date: 2014-01-16
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Publication No.: US08952539B2Publication Date: 2015-02-10
- Inventor: Lawrence A. Clevenger , Maxime Darnon , Satyanarayana V. Nitta , Anthony D. Lisi , Qinghuang Lin
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Scully, Scott, Murphy & Presser, P.C.
- Agent Lous J. Percello, Esq.
- Main IPC: H01L23/538
- IPC: H01L23/538 ; H01L23/482 ; H01L21/02 ; H01L21/31 ; H01L21/3105 ; H01L21/768 ; H01L23/522 ; H01L23/532 ; C08L83/04

Abstract:
Methods for producing air gap-containing metal-insulator interconnect structures for VLSI and ULSI devices using a photo-patternable low k material as well as the air gap-containing interconnect structure that is formed are disclosed. More particularly, the methods described herein provide interconnect structures built in a photo-patternable low k material in which air gaps are defined by photolithography in the photo-patternable low k material. In the methods of the present invention, no etch step is required to form the air gaps. Since no etch step is required in forming the air gaps within the photo-patternable low k material, the methods disclosed in this invention provide highly reliable interconnect structures.
Public/Granted literature
- US20140131880A1 METHODS FOR FABRICATION OF AN AIR GAP-CONTAINING INTERCONNECT STRUCTURE Public/Granted day:2014-05-15
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