Resources Contact Us Home
Method and apparatus for programming single-poly pFET-based nonvolatile memory cells

Image Number 7 for United States Patent #7411828.

Methods and apparatuses for programming a single-poly pFET-based nonvolatile memory cell bias the cell so that band-to-band tunneling (BTBT) is induced and electrons generated by the BTBT are injected onto a floating gate of the cell. Following a predetermined event, the single-poly pFET is biased to induce impact-ionized hot-electron injection (IHEI). The predetermined event may be, for example, the expiration of a predetermined time period or a determination that a channel has been formed by the BTBT injection process that is sufficiently conducting to support IHEI. Employing BTBT permits a previously overerased or stuck bit to be "unstuck" or "removed" and thus be made usable (i.e., able to be programmed) again.

  Recently Added Patents
Exposure apparatus, exposure method, and device manufacturing method
Method and system for routing telephony communications together with modified calling party identifier information
Adsorptive molded parts and the use thereof
Semiconductor device with an amorphous semi-insulating layer, temperature sensor, and method of manufacturing a semiconductor device
Analog to digital converter with increased sub-range resolution
Semiconductor device
Power supply system for a data storage system and a method of controlling a power supply
  Randomly Featured Patents
Tire with removable studs
Method of exposing substrate, apparatus for performing the same, and method of manufacturing display substrate using the same
Prevention of urogenital infections
Cryptographic pairing-based short signature generation and verification
Hearing aid
Process for manufacturing elastic hard fibers
Stable pharmaceutical compositions containing 7-substituted-3,5-dihydroxyheptanoic acids or 7-substituted-3,5-dihydroxyheptenoic acids
Symmetrically gain controlled differential amplifier
Decurler roll setup and wear rate determination procedure
Apparatus and method for automatically focusing an interference microscope