US 6,337,506 B2 · Semiconductor memory device capable of performing stable operation for noise while preventing increase in chip area

Abstract

A power supply circuit and an oscillation circuit or the like of noise generation sources are concentrated, and the periphery thereof is surrounded by a guard ring. Guard ring is provided to have bonding pads at least partially thereon. Guard ring is effectively provided utilizing the region below bonding pads, so that effective noise reduction is achieved while preventing increase in chip area.

Claims0

Dependent claims

Claims aren’t available for this document.

Facts

Application

09/116,887Filed 16 Jul 1998

Published

US 2001/0045583 A129 Nov 2001

Granted

8 Jan 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

H10W 42/20
Arrangements for protection of devices: protecting against electromagnetic or particle radiation, e.g. light, X-rays, gamma-rays or electrons
G11C 5/14
Details of stores covered by group G11C11/00: power supply arrangements , e.g. power down, chip selection or deselection, layout of wirings or…
H10D 84/85
Of only insulated-gate FETs [IGFET]: complementary IGFETs, e.g. CMOS
H10D 89/00
Aspects of integrated devices not covered by groups h10d84/00 - h10d88/00

Semiconductor memory device capable of performing stable operation for noise while preventing increase in chip area

Life of this patent

Abstract

Claims0

Semiconductor memory device capable of performing stable operation for noise while preventing increase in chip area

Life of this patent

Abstract

Claims0