Two-Phase Boosted Voltage Generator for Low-Voltage Giga-Bit DRAMs

Young-Hee KIM  Jong-Ki NAM  Sang-Hoon LEE  Hong-June PARK  Joo-Sun CHOI  Choon-Sung PARK  Seung-Han AHN  Jin-Yong CHUNG  

IEICE TRANSACTIONS on Electronics   Vol.E83-C   No.2   pp.266-269
Publication Date: 2000/02/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Storage Technology
boosted voltage generator,  low voltage,  giga-bit DRAMs,  charge pump,  

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A two-phase boosted voltage (VPP) generator circuit was proposed for use in giga-bit DRAMs. It reduced the maximum gate oxide voltage of pass transistor and the lower limit of supply voltage to VPP and VTN respectively while those for the conventional charge pump circuit are VPP+VDD and 1.5 VTN respectively. Also the pumping current was increased in the new circuit.