The authors present a microphotoreflectance (micro-PR) spectroscopic study of a biased InGaAlAs∕GaAsSb∕InP heterojunction bipolar transistor. Franz Keldysh oscillations from an InGaAlAs emitter are studied as a function of the static biasing voltage applied to the emitter-base junction. The electric field value from the InGaAlAs emitter is decreasing under direct biasing voltage. The change in electric field value is shown to be in good agreement within the expected operation of forward biased junction, and making possible a straight measurement of the net doping concentration. Results show the feasibility of a micro-PR spectroscopy analysis of devices under operation.

Topics
Doping, Heterostructures, Franz-Keldysh effect, Transistors, Microtechnology, Dielectric properties, Electroluminescence, Spectroscopy, High resolution X-ray diffraction, Lasers
1.
F. H.
 
Pollak
, in
Handbook on Semiconductors
, edited by
M.
 
Balkanski
 (
North-Holland
,
New York
,
1994
),
2
,
554
.
Google Scholar
 
2.
C. J.
 
Lin
 and
Y. S.
 
Huang
,
J. Appl. Phys.
https://doi.org/10.1063/1.1405823
 
90
,
4565
(
2001
).
Google Scholar
Crossref
Search ADS
 
3.
M.
 
Geddo
,
T.
 
Ciabattoni
,
G.
 
Guizzetti
,
M.
 
Galli
,
M.
 
Patrini
,
A.
 
Polimeni
,
R.
 
Trotta
,
M.
 
Capizzi
,
G.
 
Bais
,
M.
 
Piccin
,
S.
 
Rubini
,
F.
 
Martelli
, and
A.
 
Franciosi
,
Appl. Phys. Lett.
https://doi.org/10.1063/1.2709629
 
90
,
091907
(
2007
).
Google Scholar
Crossref
Search ADS
 
4.
H.
 
Chouaib
,
C.
 
Bru-Chevallier
,
G.
 
Guillot
,
H.
 
Lahreche
, and
P.
 
Bove
,
J. Appl. Phys.
https://doi.org/10.1063/1.2142099
 
98
,
123524
(
2005
).
Google Scholar
Crossref
Search ADS
 
5.
H.
 
Takeuchi
,
Y.
 
Yamamoto
, and
M.
 
Nakayama
,
J. Appl. Phys.
https://doi.org/10.1063/1.1766416
 
96
,
1967
(
2004
).
Google Scholar
Crossref
Search ADS
 
6.
A.
 
Podhorodecki
,
J.
 
Andrzejewski
,
R.
 
Kudrawiec
,
J.
 
Misiewicz
,
J.
 
Wojcik
,
B. J.
 
Robinson
,
T.
 
Roschuk
,
D. A.
 
Thompson
, and
P.
 
Masche
,
J. Appl. Phys.
https://doi.org/10.1063/1.2209787
 
100
,
013111
(
2006
).
Google Scholar
Crossref
Search ADS
 
7.
C.
 
Bru-Chevallier
,
H.
 
Chouaib
,
J.
 
Arcamone
,
T.
 
Benyattou
,
H.
 
Lahreche
, and
P.
 
Bove
,
Thin Solid Films
https://doi.org/10.1016/j.tsf.2003.10.061
 
450
,
151
(
2004
).
Google Scholar
Crossref
Search ADS
 
8.
M. W.
 
Dvorak
,
C. R.
 
Bolognesi
,
O. J.
 
Pitts
, and
S. P.
 
Watkins
,
IEEE Electron Device Lett.
https://doi.org/10.1109/55.936343
 
22
,
361
(
2001
).
Google Scholar
Crossref
Search ADS
 
9.
R. D.
 
Rajavel
,
T.
 
Hussain
,
M. C.
 
Montes
, and
M. W.
 
Sawins
,
J. Cryst. Growth
https://doi.org/10.1016/S0022-0248(02)02363-1
 
251
,
848
(
2003
).
Google Scholar
Crossref
Search ADS
 
10.
C.
 
Wang
,
J.
 
Walpole
,
L.
 
Missaggia
,
J.
 
Donnelly
, and
H.
 
Choi
,
Appl. Phys. Lett.
https://doi.org/10.1063/1.104928
 
58
,
2208
(
1991
).
Google Scholar
Crossref
Search ADS
 
11.
H.
 
Shen
 and
M.
 
Dutta
,
J. Appl. Phys.
https://doi.org/10.1063/1.360131
 
78
,
2151
(
1995
).
Google Scholar
Crossref
Search ADS
 
12.
Y. H.
 
Chen
 and
G. J.
 
Jan
,
IEEE J. Quantum Electron.
https://doi.org/10.1109/3.563386
 
33
,
574
(
1997
).
Google Scholar
Crossref
Search ADS
 
13.
F.
 
Pollak
,
H.
 
Qiang
,
D.
 
Yan
,
W.
 
Krystek
, and
S.
 
Moneger
,
Solid-State Electron.
https://doi.org/10.1016/0038-1101(94)00281-J
 
38
,
1121
(
1995
).
Google Scholar
Crossref
Search ADS
 
© 2007 American Institute of Physics.
2007
American Institute of Physics
You do not currently have access to this content.