Ceramics International, volume 48, issue 6, pages 8766-8772

Low-temperature rough-surface wafer bonding with aluminum nitride ceramics implemented by capillary and oxidation actions

Nien S., Ruan J., Kuo Y., Lee B.T.
Publication typeJournal Article
Publication date2022-03-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor5.2
ISSN02728842
Materials Chemistry
Surfaces, Coatings and Films
Ceramics and Composites
Electronic, Optical and Magnetic Materials
Process Chemistry and Technology
Abstract
Aluminum nitride (AlN) is a ceramic material with excellent dielectric and thermal properties, and it is used in the microelectron and energy fields. Despite polishing, the roughness (rms >10 nm) of AlN wafers fabricated by sintering fails to meet the surface requirements (rms <0.5 nm) for direct wafer bonding. However, rough-surface wafer bonding of paired AlN and AlN can be achieved with the following procedure: (1) rough surfaces are activated by oxygen plasma to introduce strong capillary action, (2) reactions of AlN and bonding species (OH − ) are promoted by clamping during storage and annealing and (3) low-temperature annealing (<150 °C) joins the two surfaces of AlN/AlN by synthesizing Al 2 O 3 at the bonding interface. TEM and XPS results show that a transition layer exists between bonding surfaces wherein the concentration of nitrogen decreases while that of oxygen significantly increases.

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Nien S. et al. Low-temperature rough-surface wafer bonding with aluminum nitride ceramics implemented by capillary and oxidation actions // Ceramics International. 2022. Vol. 48. No. 6. pp. 8766-8772.
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Nien S., Ruan J., Kuo Y., Lee B.T. Low-temperature rough-surface wafer bonding with aluminum nitride ceramics implemented by capillary and oxidation actions // Ceramics International. 2022. Vol. 48. No. 6. pp. 8766-8772.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.ceramint.2022.01.131
UR - https://doi.org/10.1016/j.ceramint.2022.01.131
TI - Low-temperature rough-surface wafer bonding with aluminum nitride ceramics implemented by capillary and oxidation actions
T2 - Ceramics International
AU - Nien, S
AU - Ruan, J
AU - Kuo, Y
AU - Lee, B T
PY - 2022
DA - 2022/03/01 00:00:00
PB - Elsevier
SP - 8766-8772
IS - 6
VL - 48
SN - 0272-8842
ER -
BibTex
Cite this
BibTex Copy
@article{2022,
author = {S Nien and J Ruan and Y Kuo and B T Lee},
title = {Low-temperature rough-surface wafer bonding with aluminum nitride ceramics implemented by capillary and oxidation actions},
journal = {Ceramics International},
year = {2022},
volume = {48},
publisher = {Elsevier},
month = {mar},
url = {https://doi.org/10.1016/j.ceramint.2022.01.131},
number = {6},
pages = {8766--8772},
doi = {10.1016/j.ceramint.2022.01.131}
}
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