发明名称 |
Hall-effect sensor incorporated in a CMOS integrated circuit |
摘要 |
The Hall-effect sensor HS' of the invention incorporated in a CMOS integrated circuit IC' is formed with a well 2' as the sensor active layer on a substrate 1'. Heavily doped regions 31', . . . , 34', in the well 2' are connected with sensor metal contacts 41', . . . , 44'. The upper plane S' of the substrate 1' is covered by a field oxide layer 5' the thickness thereof being between 0.8 mu m. and 1.0 mu m. Over the layer 5' in the region 50' surrounding the sensor contacts 41', . . . , 44', a polysilicon layer 6' is provided to block the disturbing influence of ions migrating in the field oxide layer 5'.
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申请公布号 |
US5627398(A) |
申请公布日期 |
1997.05.06 |
申请号 |
US19940190768 |
申请日期 |
1994.02.02 |
申请人 |
ISKRA STEVCI-INDUSTRIJA MERILNE IN UPRAVLJALNE TEHNIKE KRANJ, D.O.O. |
发明人 |
ZLEBIR, SILVO;BELI+E,HAC C+EE , ANDREJ |
分类号 |
H01L27/22;(IPC1-7):H01L29/82;H01L43/00 |
主分类号 |
H01L27/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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