Patent ID: 6411549
Filing Date: 2002-06-25
Classification: G11C

Abstract:
A reference voltage generator for use with a sense amplifier comprising:a reference voltage output node coupled to said sense amplifier; a voltage input node for receiving a controlled voltage potential; and a first MOS reference cell having a first drain region, a first source region, a first control gate, a first polysilicon gate, a first channel region, a first tunneling oxide, and a first gate oxide, said first drain region and said first source region being on opposing sides of said first channel region, said first polysilicon gate being separated from said first channel region by said first tunneling oxide, said first gate oxide being interposed between said first control gate and said first polysilicon gate, said first drain region being coupled to said reference voltage output node, said first source region being coupled to a first reference power rail, said voltage input node being coupled to both said first control gate and to said first polysilicon gate, said controlled voltage potential being effective for actuating said first MOS reference cell; and a via connecting said first control gate to said first polysilicon gate.