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IEICE TRANSACTIONS on Electronics

Low-Temperature Au-to-Au Bonding for LiNbO3/Si Structure Achieved in Ambient Air

Ryo TAKIGAWA, Eiji HIGURASHI, Tadatomo SUGA, Satoshi SHINADA, Tetsuya KAWANISHI

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Summary :

A lithium niobate (LiNbO3)/silicon (Si) hybrid structure has been developed by the surface-activated bonding of LiNbO3 chips with gold (Au) thin film to Si substrates with patterned Au film. After organic contaminants on the Au surfaces were removed using argon radio-frequency plasma, Au-to-Au bonding was carried out in ambient air. Strong bonding at significantly low temperatures below 100 without generating cracks has been demonstrated.

Publication
IEICE TRANSACTIONS on Electronics Vol.E90-C No.1 pp.145-146
Publication Date
2007/01/01
Publicized
Online ISSN
1745-1353
DOI
10.1093/ietele/e90-c.1.145
Type of Manuscript
Special Section LETTER (Special Section on Microoptomechatronics)
Category
Micro/Nano Fabrication

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