Invention Grant
- Patent Title: Methods for forming NMOS EPI layers
- Patent Title (中): 形成NMOS EPI层的方法
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Application No.: US12968528Application Date: 2010-12-15
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Publication No.: US08999798B2Publication Date: 2015-04-07
- Inventor: Mitchell C. Taylor , Susan B. Felch
- Applicant: Mitchell C. Taylor , Susan B. Felch
- Applicant Address: US CA Santa Clara
- Assignee: Applied Materials, Inc.
- Current Assignee: Applied Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Moser Taboada
- Agent Alan Taboada
- Main IPC: H01L21/336
- IPC: H01L21/336 ; H01L21/67 ; H01L21/20 ; H01J37/32 ; H01L21/223 ; H01L21/268 ; H01L29/165 ; H01L29/66 ; H01L29/78 ; H01L21/02 ; H01L21/683

Abstract:
NMOS transistors having controlled channel strain and junction resistance and methods for the fabrication of same are provided herein. In some embodiments, a method for forming an NMOS transistor may include (a) providing a substrate having a p-type silicon region; (b) depositing a silicon seed layer atop the p-type silicon region; (c) depositing a silicon-containing bulk layer comprising silicon, silicon and a lattice adjusting element or silicon and an n-type dopant atop the silicon seed layer; (d) implanting at least one of the lattice adjusting element or the n-type dopant which is absent from the silicon-containing bulk layer deposited in (c) into the silicon-containing bulk layer; and (e) annealing the silicon-containing bulk layer with an energy beam after implantation in (d). In some embodiments, the substrate may comprise a partially fabricated NMOS transistor device having a source/drain region defined therein.
Public/Granted literature
- US20110175140A1 METHODS FOR FORMING NMOS EPI LAYERS Public/Granted day:2011-07-21
Information query
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