SEMICONDUCTOR ELEMENT AND ITS MANUFACTURE

Title:

SEMICONDUCTOR ELEMENT AND ITS MANUFACTURE

Document Type and Number:

Japanese Patent JPH11238853

Kind Code:

A

Abstract:

To provide a semiconductor element which is capable of maintaining stable current-voltage characteristic in an input pad peripheral circuit part during open/short inspection.

This semiconductor element comprises a first n-well 20 and a second n-well 30, which are separated and formed in a horizontal direction on the lower surface of element isolating regions (a) and (b), a p-channel transistor Q2 formed inside the second n-well 30 and an input protection transistor Q1, which is separated and formed in a horizontal direction to the first n-well 20 and the element isolation region (a) on a side opposite to the second n-well 30 and it comprises a guard ring formed in a boundary surface, on a semiconductor board existing between the input protection transistor Q1 and the first n-well 20.

Inventors:

LEE CHANG SOO

Application Number:

JP34744198A

Publication Date:

August 31, 1999

Filing Date:

December 07, 1998

Export Citation:

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Assignee:

LG SEMICON CO LTD

International Classes:

H01L21/76; H01L21/761; H01L21/762; H01L21/822; H01L21/8242; H01L27/02; H01L27/04; H01L27/08; H01L27/092; H01L27/108; H01L29/06; H01L29/40; (IPC1-7): H01L27/08; H01L21/76; H01L27/04; H01L21/822; H01L27/108; H01L21/8242

Attorney, Agent or Firm:

Hajime Tsukuni (3 outside)

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