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首页> 外文期刊>Superlattices and microstructures >Low-temperature Direct Wafer Bonding Of Gaas/inp
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Low-temperature Direct Wafer Bonding Of Gaas/inp

机译:Gaas / inp的低温直接晶圆键合

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摘要

An approach for low-temperature direct wafer bonding of GaAs/InP was presented. The bonding procedure was carried out at temperatures from 350 to 500 ℃, and the bonded n-GaAs-InP specimens were obtained even at a temperature as low as 350 ℃. The compositional profile on the GaAs/InP heterointerface was studied by X-ray photoelectron spectroscopy. The bonded interfacial properties were also characterized by current-voltage (I-V) and bonding strength measurement. The experimental results revealed an InGaAsP (or/and InGaAs) interlayer formed at the bonded interface, which influences the electrical property as well as the bonding strength. For the specimen bonded at 350 ℃, the transport of major carriers could be explained by a tunneling effect. But the carrier transport was described by the thermionic emission theory for the specimen bonded at 450 ℃. Finally, the mechanism of GaAs/InP bonding was discussed.
机译:提出了一种用于GaAs / InP低温直接晶圆键合的方法。键合过程在350至500℃的温度下进行,即使在低至350℃的温度下也可以获得键合的n-GaAs / n-InP样品。通过X射线光电子能谱研究了GaAs / InP异质界面上的成分分布。结合的界面性质还通过电流-电压(I-V)和结合强度测量来表征。实验结果表明,在键合界面处形成了InGaAsP(或InGaAs)中间层,这会影响电性能以及键合强度。对于在350℃粘结的试样,主要载流子的传输可以用隧穿效应来解释。但通过热电子发射理论描述了在450℃下粘结的样品的载流子传输。最后,讨论了GaAs / InP键合的机理。

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