Semiconductor device with internal gettering region

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357 64, 357 91, H01L 2704

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active

047164514

ABSTRACT:
A semiconductor device includes a substrate of single crystalline silicon having the active regions of a semiconductor element, such as the source, drain, channel and gates, along one surface of the substrate, and a thin gettering region of a gettering material in the substrate. The gettering region is spaced from both surfaces of the substrate and is adjacent the active regions of the semiconductor element so as to getter contaminants in the substrate from the area of the substrate containing the semiconductor element.

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Wordeman et al., "A Buried N-Grid for Protection Against Radiation Induced Charge Collection in Electrostatic Circuits", IEDM Tech. Digest, 1981, pp. 40-43.
"Gettering Processes for Defect Control," J. R. Monkowski, Solid State Technology, Jul. 1981, pp. 44-51.

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