Invention Grant
US07678628B2 Methods of fabricating nitride-based transistors with a cap layer and a recessed gate
有权
制造具有盖层和凹入栅极的基于氮化物的晶体管的方法
- Patent Title: Methods of fabricating nitride-based transistors with a cap layer and a recessed gate
- Patent Title (中): 制造具有盖层和凹入栅极的基于氮化物的晶体管的方法
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Application No.: US11810026Application Date: 2007-06-04
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Publication No.: US07678628B2Publication Date: 2010-03-16
- Inventor: Scott Sheppard , Richard Peter Smith
- Applicant: Scott Sheppard , Richard Peter Smith
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Myers Bigel Sibley & Sajovec
- Main IPC: H01L21/338
- IPC: H01L21/338

Abstract:
An anneal of a gate recess prior to formation of a gate contact, such as a Schottky contact, may reduce gate leakage and/or provide a high quality gate contact in a semiconductor device, such as a transistor. The use of an encapsulation layer during the anneal may further reduce damage to the semiconductor in the gate recess of the transistor. The anneal may be provided, for example, by an anneal of ohmic contacts of the device. Thus, high quality gate and ohmic contacts may be provided with reduced degradation of the gate region that may result from providing a recessed gate structure as a result of etch damage in forming the recess.
Public/Granted literature
- US20070254418A1 Methods of fabricating nitride-based transistors with a cap layer and a recessed gate Public/Granted day:2007-11-01
Information query
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