Role of excess As in low-temperature grown GaAs subjected to BCl3 reactive ion etching

1999 ◽  
Vol 75 (19) ◽  
pp. 3032-3034 ◽  
Author(s):  
M. N. Chang ◽  
C. C. Chuo ◽  
C. M. Lu ◽  
K. C. Hsieh ◽  
N. T. Yeh ◽  
...  
2002 ◽  
Vol 743 ◽  
Author(s):  
Marie Wintrebert-Fouquet ◽  
K. Scott ◽  
A. Butcher ◽  
Simon K H Lam

ABSTRACTWe present a comparative study of the effects of low power reactive ion etching (RIE) on GaN and InN. This new, highly chemical, dry etching, using CF4 and Ar, has been developed for thin nitride films grown at low temperature in our laboratories. GaN films were grown by remote plasma enhanced-laser induced chemical vapor deposition and InN films were grown by radio-frequency RF reactive sputtering. Commercial GaN samples were also examined. Optical and electrical characteristics of the films are reported before and after removing 100 to 200 nm of the film surface by RIE. We have previously shown that the GaN films, although polycrystalline after growth, may be re-crystallized below the growth temperature. Removal of the surface oxide has been found to be imperative since a polycrystalline residue remains on the surface after re-crystallization.


1997 ◽  
Vol 36 (Part 1, No. 12B) ◽  
pp. 7650-7654 ◽  
Author(s):  
Tadashi Saitoh ◽  
Tetsuomi Sogawa ◽  
Hiroshi Kanbe

2015 ◽  
Vol 1109 ◽  
pp. 64-68
Author(s):  
Q. Humayun ◽  
U. Hashim

The important role of reactive ion etching (RIE) technique is to etch the semiconductor surface directionally. The purpose of the current research is to fabricate polysilicon micro-gap structures by RIE technique for future biosensing application. Therefore zero-gap microstructure of butterfly topology was designed by using AutoCAD software and finally the designed was transferred to commercial chrome glass photomask. Ploysilicon wafer samples were selected to achieve high conductivity during electrical characterization measurement. The fabrication process starts from samples resist coating and then by employing photolithography through chrome glass photomask the zero-gap pattern of butterfly topology was transferred to resist coated sample wafer followed by resist stripping from exposed area and finally by reactive ion etching (RIE) technique the open area of polysilicon was etched directionally at different etching time to fabricate micro-gap structure on wafer samples. The spacing of fabricated micro-gap structures will be further shrink by thermal oxidation (size reduction technique) until to nanosize gap spacing. The proposed nanospacing gap will definitely show the capability to detect the bio molecule when inserted into the gap spacing.


1992 ◽  
Vol 46 (8) ◽  
pp. 4617-4620 ◽  
Author(s):  
A. C. Warren ◽  
J. M. Woodall ◽  
P. D. Kirchner ◽  
X. Yin ◽  
F. Pollak ◽  
...  

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