A non-volatile memory device according to embodiments of the invention includes a page buffer acting as a sense amplifier during a read operation and as a write driver during a program operation. The page buffer has two sense and latch blocks, which exclusively carry out the same function. While one...http://www.google.de/patents/US6717857?utm_source=gb-gplus-sharePatent US6717857 - Non-volatile semiconductor memory device with cache function and program, read, and page copy-back operations thereof
