Invention Grant
- Patent Title: Electroless filled conductive structures
- Patent Title (中): 无电解填充导电结构
-
Application No.: US13976084Application Date: 2011-12-21
-
Publication No.: US09123706B2Publication Date: 2015-09-01
- Inventor: Daniel J. Zierath , Shaestagir Chowdhury , Chi-Hwa Tsang
- Applicant: Daniel J. Zierath , Shaestagir Chowdhury , Chi-Hwa Tsang
- Applicant Address: US CA Santa Clara
- Assignee: INTEL CORPORATION
- Current Assignee: INTEL CORPORATION
- Current Assignee Address: US CA Santa Clara
- Agency: Finch & Maloney PLLC
- International Application: PCT/US2011/066477 WO 20111221
- International Announcement: WO2013/095433 WO 20130627
- Main IPC: H01L23/485
- IPC: H01L23/485 ; H01L21/768 ; H01L23/538 ; H01L23/532

Abstract:
Techniques are disclosed that enable interconnects, vias, metal gates, and other conductive features that can be formed through electroless material deposition techniques. In some embodiments, the techniques employ electroless fill in conjunction with high growth rate selectivity between an electroless nucleation material (ENM) and electroless suppression material (ESM) to generate bottom-up or otherwise desired fill pattern of such features. Suitable ENM may be present in the underlying or otherwise existing structure, or may be provided. The ESM is provisioned so as to prevent or otherwise inhibit nucleation at the ESM covered areas of the feature, which in turn prevents or otherwise slows down the rate of electroless growth on those areas. As such, the electroless growth rate on the ENM sites is higher than the electroless growth rate on the ESM sites.
Public/Granted literature
- US20130270703A1 ELECTROLESS FILLED CONDUCTIVE STRUCTURES Public/Granted day:2013-10-17
Information query
IPC分类: