NDLI: A high-power gate-controlled switch (GCS) using new lifetime control method

Content Provider	IEEE Xplore Digital Library
Author	Hayashi, H. Mamine, T. Matsushita, T.
Copyright Year	1963
Abstract	A high-power gate-controlled switch (GCS) with high switching speed was developed using a new method for controlling minority-carrier lifetime where both iron and gold were doped into the device. An improved temperature dependence of the forward voltage drop of the device was obtained because each of the forward voltage drops determined by iron and gold has opposite temperature dependence. The lifetime was controlled reproducibly by two-step diffusion of lifetime killers, that is, iron diffusion at high temperature and gold diffusion at lower temperatures afterwards. The relation between the forward voltage drop and the lifetime was theoretically analyzed and the agreement between the theory and experimental results was fairly good. The GCS of 0.15-cm²active area has the ratings of blocking voltage of 1500 V, available turn-off current of 160 A, forward voltage drop of 3 V at anode current of 100 A, and turn-off gain of 9. The turnoff time and turn-on time of less than 2 µs could be obtained. Thedv/dtanddi/dtare 1000 V/µs and 500 A/µs, respectively. The operation of 50 kHz at 100 A/1000 V could be realized with the inductive load of 50 µH by the GCS. The SIPOS (SemiInsulating POlycrystalline-Silicon) passivation was applied to the GCS in order to obtain the high reliability.
Sponsorship	IEEE Electron Devices Society
Starting Page	246
Ending Page	251
Page Count	6
File Size	754697
File Format	PDF
ISSN	00189383
Volume Number	28
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1981-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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