Invention Application
- Patent Title: Bipolar Device Having Improved Capacitance
- Patent Title (中): 具有改善电容的双极器件
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Application No.: US11531477Application Date: 2006-09-13
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Publication No.: US20080064177A1Publication Date: 2008-03-13
- Inventor: Alan S. Chen , Mark Dyson , Daniel C. Kerr , Nace M. Rossi
- Applicant: Alan S. Chen , Mark Dyson , Daniel C. Kerr , Nace M. Rossi
- Applicant Address: US PA Allentown
- Assignee: Agere Systems Inc.
- Current Assignee: Agere Systems Inc.
- Current Assignee Address: US PA Allentown
- Main IPC: H01L21/331
- IPC: H01L21/331

Abstract:
The invention, in one aspect, provides a semiconductor device that comprises a collector located in a semiconductor substrate and an isolation region located under the collector, wherein a peak dopant concentration of the isolation region is separated from a peak dopant concentration of the collector by at least about 0.9 microns. The invention also provides a method for forming this device.
Public/Granted literature
- US07666750B2 Bipolar device having improved capacitance Public/Granted day:2010-02-23
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