DocumentCode
1947916
Title
A Highly Reliable Gate/n- Overlapped Transistor for Mega-bit DRAMs
Author
Nagatomo, M. ; Okumura, Y. ; Mitsui, K. ; Ogoh, I. ; Joh, H. Gen ; Inuishi, M. ; Matsukawa, T.
Author_Institution
LSI R&D Laboratory, Mitsubishi Electric Corp., 4-1 Mizuhara, Itami, 664, JAPAN
fYear
1989
fDate
11-14 Sept. 1989
Firstpage
923
Lastpage
926
Abstract
A noble gate/N- overlapped Tr. fabricated using oblique rotating ion implantation technique was developed. It is confirmed that this Tr. meets high performance M bit DRAMs´ requirements, that is, high drain current, enough punchthrough voltage and low substrate current. The mechanism of this Tr.´s action is analyzed by simulation and is concluded that peak position of electric field is located far from the drain current pass in this Tr.´s structure. The maximum electric field is also relaxed by formation of N- layer using oblique ion implantation.
Keywords
Analytical models; Degradation; FETs; Impurities; Large scale integration; Parasitic capacitance; Performance analysis; Research and development; Very large scale integration; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid State Device Research Conference, 1989. ESSDERC '89. 19th European
Conference_Location
Berlin, Germany
Print_ISBN
0387510001
Type
conf
Filename
5437066
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