Relaxation of operational amplifier parameters after pulsed electron beam irradiation
DSpace at IIT Bombay
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Title |
Relaxation of operational amplifier parameters after pulsed electron beam irradiation
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Creator |
BETTY, CA
GIRIJA, KG LAL, R |
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Subject |
oxide-semiconductor capacitors
interface trap formation low-dose rate integrated-circuits time-dependence relaxation operational amplifiers pulsed irradiation linac time dependent phenomena |
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Description |
The relaxation of operational amplifier parameters (offset voltage and differential gain) with time after pulsed electron beam irradiation has been studied as a function of total dose and amplifier type. Four types of operational amplifiers were studied viz., general purpose bipolar input (mu A 741), super-beta transistor input (LM 308), JFET input (LF 356) and MOSFET input (CA 3140) from different vendors. The experiments were carried out mainly using 500 ns pulses from a Linear Accelerator. The study, the first of its kind, shows that while the electrical transient at the output of the operational amplifier recovers in a few milliseconds. relaxation of parameters can take several to several tens of seconds. This relaxation is attributed to the build up and/or anneal of damage in the oxide or at the interface of the internal transistor structures. The change and relaxation of parameters depend on operational amplifier type and total dose, and can have significant effects in certain application domains as illustrated by the response of a thermocouple amplifier after pulsed irradiation. (C) 1999 . .
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Publisher |
PERGAMON-ELSEVIER SCIENCE LTD
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Date |
2011-08-26T07:02:29Z
2011-12-26T12:57:20Z 2011-12-27T05:47:26Z 2011-08-26T07:02:29Z 2011-12-26T12:57:20Z 2011-12-27T05:47:26Z 1999 |
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Type |
Article
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Identifier |
MICROELECTRONICS RELIABILITY, 39(10), 1485-1495
0026-2714 http://dx.doi.org/10.1016/S0026-2714(99)00090-6 http://dspace.library.iitb.ac.in/xmlui/handle/10054/11232 http://hdl.handle.net/10054/11232 |
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Language |
en
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