Method for driving word lines in semiconductor memory device

Static information storage and retrieval – Addressing – Particular decoder or driver circuit

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

36518909, G11C 800

Patent

active

058187901

ABSTRACT:
A method for driving word lines in a semiconductor memory device. A main row decoder generates a word line enable signal in s response to one part of address signal bits and a sub row decoder generates a word line boosting signal in response to the other part of the address signal bits. A bootstrap transistor transfers the word line enable signal from the main row decoder to a bootstrap node in response to a specific voltage. A high level voltage transfer transistor transfers the word line boosting signal from the sub row decoder to a corresponding one of the word lines in response to a voltage at the bootstrap node. After the word line enable signal from the main row decoder makes a low to high transition in level, the word line boosting signal from the sub row decoder is changed from a ground voltage level to a high voltage level to drive the corresponding word line. Then, the specific voltage is changed from the present level to the lower level. According to the present invention, the word line driving method can prevent a selected word line from floating due to OFF current resulting from a low level voltage at the bootstrap node when a row address strobe signal has a long duration. Furthermore, the word line driving method has the effect of enhancing the bootstrapping efficiency.

REFERENCES:
patent: 5373479 (1994-12-01), Noda
patent: 5416747 (1995-05-01), Ohira
patent: 5467032 (1995-11-01), Lee

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for driving word lines in semiconductor memory device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for driving word lines in semiconductor memory device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for driving word lines in semiconductor memory device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-86619

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.