Invention Grant
- Patent Title: Atomic layer deposition for controlling vertical film growth
- Patent Title (中): 用于控制垂直膜生长的原子层沉积
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Application No.: US13094402Application Date: 2011-04-26
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Publication No.: US08592005B2Publication Date: 2013-11-26
- Inventor: Shintaro Ueda
- Applicant: Shintaro Ueda
- Applicant Address: JP Tokyo
- Assignee: ASM Japan K.K.
- Current Assignee: ASM Japan K.K.
- Current Assignee Address: JP Tokyo
- Agency: Snell & Wilmer L.L.P.
- Main IPC: H05H1/24
- IPC: H05H1/24 ; B05D1/36 ; B05D3/00 ; B05D1/32 ; B05D5/00

Abstract:
A method for forming a film by atomic layer deposition wherein vertical growth of a film is controlled, includes: (i) adsorbing a metal-containing precursor for film formation on a concave or convex surface pattern of a substrate; (ii) oxidizing the adsorbed precursor to form a metal oxide sub-layer; (iii) adsorbing a metal-free inhibitor on the metal oxide sub-layer more on a top/bottom portion than on side walls of the concave or convex surface pattern; and (iv) repeating steps (i) to (iii) to form a film constituted by multiple metal oxide sub-layers while controlling vertical growth of the film by step (iii). The adsorption of the inhibitor is antagonistic to next adsorption of the precursor on the metal oxide sub-layer.
Public/Granted literature
- US20120276306A1 Atomic Layer Deposition For Controlling Vertical Film Growth Public/Granted day:2012-11-01
Information query
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