发明名称 |
ION-CONTROLLED DIODE |
摘要 |
<p>ION-CONTROLLED DIODE Disclosed is an ion-controlled diode for providing an electrical indication of a specific ion concentration in a fluid. An ion-sensitive membrane is placed over the junction of a gate controlled diode whose impedance is being measured. An external reference electrode is biased such that an inversion layer forms in the semiconductor material near the ion-sensitive membrane. Changes in the concentration of the unknown ion in fluid passing over the ion-sensitive membrane will affect the inversion layer in the gate controlled diode. The change in inversion layer will result in measurable changes in the diodes impedence.</p> |
申请公布号 |
CA1088216(A) |
申请公布日期 |
1980.10.21 |
申请号 |
CA19780299763 |
申请日期 |
1978.03.28 |
申请人 |
TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA |
发明人 |
ZEMEL, JAY N. |
分类号 |
G01N27/00;G01N27/30;G01N27/414;G01R19/08;G01R27/22;G01R31/26;H01L29/78;(IPC1-7):01R27/02 |
主分类号 |
G01N27/00 |
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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