Semiconductor memory devices incorporating voltage level...

Details Semiconductor memory devices incorporating voltage level... Semiconductor memory devices incorporating voltage level...

2007-10-30

2007-10-30

Auduong, Gene N. (Department: 2827)

Static information storage and retrieval

Read/write circuit

Testing

C365S226000, C365S189090

Reexamination Certificate

active

11243428

ABSTRACT:
A voltage level shifter for a semiconductor memory device includes a VPP level control circuit that is configured to detect a VPP voltage and to change the VPP voltage in response to a package burn-in mode signal and a test mode signal independent of at least one direct current voltage generated in response to the package burn-in mode signal.

REFERENCES:
patent: 6498760 (2002-12-01), Yamasaki
patent: 6549480 (2003-04-01), Hosogane et al.
patent: 6661729 (2003-12-01), Yamasaki
patent: 7225262 (1995-08-01), None
patent: 2002197896 (2002-07-01), None
patent: 2003329735 (2003-11-01), None
patent: 100224670 (1999-07-01), None
patent: 1020030058389 (2003-07-01), None

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