Circuitry and method for clamping a boost signal

Details Circuitry and method for clamping a boost signal Circuitry and method for clamping a boost signal

1993-10-01

1996-04-23

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327328, 327332, 327170, H03K 301

Patent

active

055107494

ABSTRACT:
A clamping circuit clamping a boost signal supplied on a boost line includes a p-channel MOS transistor and an n-channel MOS transistor. These MOS transistors are serially connected between an internal power supply line and the boost line. p-channel MOS transistor receives a clamping level control signal from a clamp control circuit at its gate. In accordance with the clamping level control signal a clamping level given by clamping circuit is varied. Therefore, by decreasing the clamping level of the boost line during an overvoltage-applied mode such as burn-in test, deterioration of components due to an overvoltage can be prevented.

REFERENCES:
patent: 4994689 (1991-02-01), Kikuda et al.
patent: 5189316 (1993-02-01), Murakami et al.
patent: 5287011 (1994-02-01), Koshikawa et al.
patent: 5287012 (1994-02-01), Koshikawa
patent: 5305260 (1994-04-01), Ninomiya
patent: 5329168 (1994-07-01), Sugibayashi et al.
"Dual-Operating-Voltage Scheme for a Single 5-V 16-Moit DRAM", M. Hariguchi et al., IEEE Journal of Solid State Circuit, vol. 23, No. 5, pp. 1128-1132 .

Affiliated with

Also associated with

Rating

Circuitry and method for clamping a boost signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuitry and method for clamping a boost signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuitry and method for clamping a boost signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2311859