Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

1987-07-14

1989-08-22

James, Andrew J.

357 14, 357 20, 357 52, H01L 2702, H01L 2992, H01L 2906

Patent

active

048600830

ABSTRACT:
In a semiconductor IC, a diode and a resistor for surge protection are integratedly formed in a p-type common island region laterally isolated from a p-type epitaxial layer by oxide film, by forming an n-type region of high impurity concentration to reach down to an n-type buried region and a resistor region, respectively; the IC has higher integration and larger junction area of the diode, and achieve better surge protection.

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