发明授权
US09269847B2 Small anode germanium (SAGe) well radiation detector system and method
有权
小阳极锗(SAGe)井辐射探测系统及方法
- 专利标题: Small anode germanium (SAGe) well radiation detector system and method
- 专利标题(中): 小阳极锗(SAGe)井辐射探测系统及方法
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申请号: US13832906申请日: 2013-03-15
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公开(公告)号: US09269847B2公开(公告)日: 2016-02-23
- 发明人: Kenneth Michael Yocum , James F. Colaresi , Orren K. Tench
- 申请人: Canberra Industries, Inc.
- 申请人地址: US CT Meriden
- 专利权人: CANBERRA INDUSTRIES, INC.
- 当前专利权人: CANBERRA INDUSTRIES, INC.
- 当前专利权人地址: US CT Meriden
- 代理机构: Carstens & Cahoon, LLP
- 代理商 David W. Carstens; Kevin M. Klughart
- 主分类号: H01L31/117
- IPC分类号: H01L31/117 ; G01T1/167 ; H01L31/08 ; G01T1/29 ; H01L31/075
摘要:
A small anode germanium well (SAGe well) radiation detector system/method providing for low capacitance, short signal leads, small area bottom-oriented signal contacts, enhanced performance independent of well diameter, and ability to determine radiation directionality is disclosed. The system incorporates a P-type bulk germanium volume (PGEV) having an internal well cavity void (IWCV). The external PGEV and IWCV surfaces incorporate an N+ electrode except for the PGEV external base region (EBR) in which a P+ contact electrode is fabricated within an isolation region. The PGEV structure is further encapsulated to permit operation at cryogenic temperatures. Electrical connection to the SAGe well is accomplished by bonding or mechanical contacting to the P+ contact electrode and the N+ electrode. The EBR of the PGEV may incorporate an integrated preamplifier inside the vacuum housing to minimize the noise and gain change due to ambient temperature variation.