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- W2019931323 abstract "Low-resistivity GaAs/Si metal-mediated wafer bonding has been investigated for silicon photonics applications. Ag thin-film bonding agent was found to significantly reduce interfacial resistivity relative to the previous bonding mediated by Au-based alloy. Lowering of the interfacial resistivity was found to saturate at 1–2 h of bonding time. A bonding temperature around 300 °C was found optimal to balance the trade-off between elemental interdiffusion and oxidation. On the basis of the bonding investigation, 1.3 μm InAs/GaAs ridge-type quantum dot lasers on Si substrates with Au-free GaAs/Si heterointerfaces have been fabricated. The laser device exhibited a significantly lower device series resistivity and threshold current density than the previous Au-mediated-bonded and direct-grown lasers." @default.
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- W2019931323 date "2012-08-01" @default.
- W2019931323 modified "2023-10-02" @default.
- W2019931323 title "1.3 <i>μ</i>m InAs/GaAs quantum dot lasers on Si substrates by low-resistivity, Au-free metal-mediated wafer bonding" @default.
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