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Impact of low-standby-power device design on hot carrier reliability

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13 Author(s)
Murakami, E. ; Central Res. Lab., Hitachi Ltd., Tokyo, Japan ; Umeda, K. ; Yamanaka, T. ; Kimura, S.
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The hot-carrier (HC) reliability of low-standby-power 0.1 /spl mu/m n-MOSFETs is investigated, and design guidelines for channel and halo profiles are described. The heavy channel-doping needed to obtain high V/sub th/ enhances HC-injection efficiency, and heavy halo-doping dramatically reduces the lifetime when using substrate-bias (V/sub bb/). Shallow-channel and tilted-halo doping is optimal to keep the HC-generation site away from the SiO/sub 2/-Si interface and to minimize the vertical electric field that is responsible for secondary impact ionization.

Published in:
VLSI Technology, 2001. Digest of Technical Papers. 2001 Symposium on

Date of Conference: 12-14 June 2001

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