DocumentCode
1112310
Title
Trench transistor DRAM cell
Author
Shichijo, H. ; Banerjee, Sanjay K. ; Malhi, Satwinder D S ; Pollack, G.P. ; Richardson, William F. ; Bordelon, D.M. ; Womack, Richard H. ; Elahy, Mostafa ; Wang, C.P. ; Gallia, James ; Davis, H.E. ; Shah, A.H. ; Chatterjee, P.K.
Author_Institution
Texas Instruments Inc., Dallas, TX
Volume
7
Issue
2
fYear
1986
fDate
2/1/1986 12:00:00 AM
Firstpage
119
Lastpage
121
Abstract
A new one-transistor DRAM cell with both the transistor and the capacitor fabricated on the trench sidewalls is described. With the signal stored on the polysilicon node surrounded by oxide, the cell is expected to have a high alpha particle immunity. The cell occupies only 9 µm2using 1-µm design rules. This cell size is sufficiently small to enable a 4-Mbit DRAM of reasonable chip size with these design rules, and possesses further scalability for 16-Mbit DRAM´s.
Keywords
Alpha particles; Capacitors; Corrugated surfaces; Etching; Helium; Interface states; Random access memory; Scalability; Silicon; Substrates;
fLanguage
English
Journal_Title
Electron Device Letters, IEEE
Publisher
ieee
ISSN
0741-3106
Type
jour
DOI
10.1109/EDL.1986.26313
Filename
1486136
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