Invention Grant
- Patent Title: Methods of forming capacitors
- Patent Title (中): 形成电容器的方法
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Application No.: US13332816Application Date: 2011-12-21
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Publication No.: US08946043B2Publication Date: 2015-02-03
- Inventor: Joseph Neil Greeley , Prashant Raghu , Niraj B. Rana
- Applicant: Joseph Neil Greeley , Prashant Raghu , Niraj B. Rana
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Wells St. John, P.S.
- Main IPC: H01L21/02
- IPC: H01L21/02

Abstract:
A method of forming capacitors includes forming support material over a substrate. A first capacitor electrode is formed within individual openings in the support material. A first etching is conducted only partially into the support material using a liquid etching fluid to expose an elevationally outer portion of sidewalls of individual of the first capacitor electrodes. A second etching is conducted into the support material using a dry etching fluid to expose an elevationally inner portion of the sidewalls of the individual first capacitor electrodes. A capacitor dielectric is formed over the outer and inner portions of the sidewalls of the first capacitor electrodes. A second capacitor electrode is formed over the capacitor dielectric.
Public/Granted literature
- US20130164902A1 Methods Of Forming Capacitors Public/Granted day:2013-06-27
Information query
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