Patent ID: 6262935
Filing Date: 2001-07-17
Classification: G11C

Abstract:
A wordline row redundancy scheme circuitry, comprising:a row shift circuit;a row decoder circuit electrically coupled to the row shift circuit by a row shift control line;said row shift circuit configured to apply a first row shift control signal level to the row shift control line, in the event that row shift redundancy is not desired;said row shift circuit configured to apply a second row shift control signal level to the row shift control line, in the event that row shift redundancy is desired, said first and second row shift control levels have distinguishing characteristics;a first electronic switch, responsive to said first row shift control signal, electrically coupled in series between an address selection electronic switch and a first wordline select line; anda second electronic switch, responsive to said second row shift control signal, electrically coupled in series between said address selection electronic switch and a second wordline select line.