Presentation 1998/12/10
Control of surface recombination of Si wafers by electric field in the μ-PCD
Masashi Hirano, Naoki Kato, Masaya Ichimura, Eisuke Arai, Hiroyuki Takamatsu, Shingo Sumie,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A negative or positive voltage up to 2kV was applied to a MIS structure consisting of a transparent electrode, a spacer and a Si wafer. The wafer was irradiated with a pulsed laser through the electrode, and the decay of the excess carriers was monitored by the microwave reflectance photoconductivity decay(μ-PCD)method. The carrier lifetime of P- and n-type as-polished wafers was increased by a factor of 3 by application of 2kV negative voltage to the electrode. This showed that the surface recombination velocity was controlled by the external electric field. Different tendency was observed for the oxidized wafers, and these results were explained considering the surface charge and the surface state.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) μ-PCD / lifetime / surface recombination / surface band
Paper # SDM98-168
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Conference Information
Committee SDM
Conference Date 1998/12/10(1days)
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Registration To Silicon Device and Materials (SDM)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Control of surface recombination of Si wafers by electric field in the μ-PCD
Sub Title (in English)
Keyword(1) μ-PCD
Keyword(2) lifetime
Keyword(3) surface recombination
Keyword(4) surface band
1st Author's Name Masashi Hirano
1st Author's Affiliation Dept. of Electrical and Computer Engineering Nagoya Institute of Technology()
2nd Author's Name Naoki Kato
2nd Author's Affiliation Dept. of Electrical and Computer Engineering Nagoya Institute of Technology
3rd Author's Name Masaya Ichimura
3rd Author's Affiliation Center for Cooperative Research
4th Author's Name Eisuke Arai
4th Author's Affiliation Dept. of Electrical and Computer Engineering Nagoya Institute of Technology
5th Author's Name Hiroyuki Takamatsu
5th Author's Affiliation Process Technology Research Laboratory, Kobe SteeI, LTD.
6th Author's Name Shingo Sumie
6th Author's Affiliation Process Technology Research Laboratory, Kobe SteeI, LTD.
Date 1998/12/10
Paper # SDM98-168
Volume (vol) vol.98
Number (no) 445
Page pp.pp.-
#Pages 5
Date of Issue