Semiconductor integrated circuit device having analog circuit an

Details Semiconductor integrated circuit device having analog circuit an Semiconductor integrated circuit device having analog circuit an

1991-12-31

1994-08-09

Hille, Rolf

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

257371, 257372, 257500, H01L 29784, H01L 2702

Patent

active

053369157

ABSTRACT:
First and second well regions of a second conductivity type are formed in a semiconductor substrate of a first conductivity type. An analog circuit is formed in the first well region. A digital circuit is formed in the second well region.

REFERENCES:
patent: 3748545 (1973-07-01), Beale
patent: 4980746 (1989-04-01), Harrington, III
patent: 5023688 (1989-12-01), Ando et al.
patent: 5047358 (1991-09-01), Kosiak et al.
patent: 5239197 (1993-08-01), Yamamoto
Meyer et al., "Integrable High Voltage CMOS: Devices, Process Application", IEDM 85 (IEEE) 30.3, pp. 732-735 (1985).

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