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Effect of mechanical treatment type on the strength of undoped single crystal indium antimonide wafers

Svetlana S. Kormilitsina 1
Svetlana S. Kormilitsina
, 
Elena V. Molodtsova 1
Elena V. Molodtsova
, 
Stanislav N. Knyzev 1
Stanislav N. Knyzev
, 
Roman Yu. Kozlov 1
Roman Yu. Kozlov
, 
Dmitry A. Zavrazhin 1
Dmitry A. Zavrazhin
, 
Elena V. Zharikova 1
Elena V. Zharikova
, 
Yuri V. Syrov 2
Yuri V. Syrov
1 Federal State Research and Develpment Institute of Rare Metal Industry (Giredmet JSC), 2 Elektrodnaya Str., Moscow 111524, Russia
2 MIREA – Russian Technological University, 78 Vernadsky Ave., Moscow 119454, Russia
Published 30 December 2020
Communication , Volume 6, Issue 4, 147-153
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Kormilitsina S. S. et al. Effect of mechanical treatment type on the strength of undoped single crystal indium antimonide wafers // Modern Electronic Materials. 2020. Vol. 6. No. 4. pp. 147-153.
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Kormilitsina S. S., Molodtsova E. V., Knyzev S. N., Kozlov R. Y., Zavrazhin D. A., Zharikova E. V., Syrov Y. V. Effect of mechanical treatment type on the strength of undoped single crystal indium antimonide wafers // Modern Electronic Materials. 2020. Vol. 6. No. 4. pp. 147-153.
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TY - JOUR
DO - 10.3897/j.moem.6.4.64991
UR - https://moem.colab.ws/publications/10.3897/j.moem.6.4.64991
TI - Effect of mechanical treatment type on the strength of undoped single crystal indium antimonide wafers
T2 - Modern Electronic Materials
AU - Kormilitsina, Svetlana S.
AU - Molodtsova, Elena V.
AU - Knyzev, Stanislav N.
AU - Kozlov, Roman Yu.
AU - Zavrazhin, Dmitry A.
AU - Zharikova, Elena V.
AU - Syrov, Yuri V.
PY - 2020
DA - 2020/12/30
PB - НИТУ МИСИС
SP - 147-153
IS - 4
VL - 6
ER -
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@article{2020_Kormilitsina,
author = {Svetlana S. Kormilitsina and Elena V. Molodtsova and Stanislav N. Knyzev and Roman Yu. Kozlov and Dmitry A. Zavrazhin and Elena V. Zharikova and Yuri V. Syrov},
title = {Effect of mechanical treatment type on the strength of undoped single crystal indium antimonide wafers},
journal = {Modern Electronic Materials},
year = {2020},
volume = {6},
publisher = {НИТУ МИСИС},
month = {Dec},
url = {https://moem.colab.ws/publications/10.3897/j.moem.6.4.64991},
number = {4},
pages = {147--153},
doi = {10.3897/j.moem.6.4.64991}
}
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Kormilitsina, Svetlana S., et al. “Effect of mechanical treatment type on the strength of undoped single crystal indium antimonide wafers.” Modern Electronic Materials, vol. 6, no. 4, Dec. 2020, pp. 147-153. https://moem.colab.ws/publications/10.3897/j.moem.6.4.64991.
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Keywords

chemical polishing
crystallographic orientation
Czochralsky method
indium antimonide
mechanical treatment
thin wafers
wafer roughness
yield strength

Abstract

Thin (100) wafers of single crystal undoped InSb have been strength tested by plane transverse bending. The strength of the wafers (≤ 800 mm in thickness) has been shown to depend on their mechanical treatment type. If the full mechanical treatment cycle is used (grinding + chemical polishing) the strength of the InSb wafers increases twofold (from 3.0 to 6.4 kg/mm2). We show that the strength dependence on mechanical treatment type for (100) wafers is similar to that for (111) wafers, the strength of (111) wafers being 2 times higher. The roughness of the thin wafers after the full mechanical treatment cycle has been measured using contact profilometry. After the full mechanical treatment cycle the roughness of the InSb wafers Ra decreases from 0.6 to 0.04 mm leading to general surface smoothening. We have compared the strength and roughness between (100) InSb and GaAs wafers. The roughness of InSb and GaAs wafers after the full mechanical treatment cycle decreases significantly: by 10 times for InSb due to the general surface smoothening and by 3 times for GaAs (Rz from 2.4 to 0.8 mm) due to a reduction of the peak roughness component. The full mechanical treatment cycle increases the strength of InSb wafers by removing damaged layers through the sequence of operations and reducing the risk of mechanical damage development.

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