DocumentCode
3352524
Title
Control of Si surface characteristics by a new etching solution BHF/H2O2
Author
Muramatsu, Yoshinorii ; Tsuji, Mikio ; Aoto, Nahomi
Author_Institution
ULSI Device Dev. Labs., NEC Corp., Kanagawa, Japan
fYear
1995
fDate
17-19 Sep 1995
Firstpage
47
Lastpage
50
Abstract
We propose a new buffered hydrofluoric acid (BHF) based solution without surfactants, BHF/H2O2, for Si oxide etching. The BHF/H2O2 solution is an application of the FPM (hydrofluoric acid-hydrogen peroxide mixture) technique reported by Shimono and Tsuiji (1991). By using BHF/H2O2 , low microroughness and high wettability to Si surfaces are achieved without adding any surfactants
Keywords
elemental semiconductors; etching; silicon; surface topography; wetting; BHF/H2O2 solution; FPM technique; H2O2; HF; Si; Si surface; buffered hydrofluoric acid; hydrofluoric acid hydrogen peroxide mixture; microroughness; oxide; wet etching; wettability; Additives; Atomic measurements; Force measurement; Hafnium; Pollution measurement; Surface contamination; Surface morphology; Surface treatment; Very large scale integration; Wet etching;
fLanguage
English
Publisher
ieee
Conference_Titel
Semiconductor Manufacturing, 1995., IEEE/UCS/SEMI International Symposium on
Conference_Location
Austin, TX
Print_ISBN
0-7803-2928-7
Type
conf
DOI
10.1109/ISSM.1995.524356
Filename
524356
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