Thermal reliability and characterization of InGaP Schottky contact with Ti/Pt/Au metals

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題名:	Thermal reliability and characterization of InGaP Schottky contact with Ti/Pt/Au metals
作者:	Lee,CT;Shiao,HP;Yeh,NT;Tsai,CD;Lyu,YT;Tu,YK
貢獻者:	光電科學研究所
關鍵詞:	EPITAXY
日期:	1997
上傳時間:	2010-06-29 19:43:49 (UTC+8)
出版者:	中央大學
摘要:	We present the characteristics of Ti/Pt/Au Schottky contacts on wide bandgap InGaP semiconductors with surface pre-treatment before Schottky contact deposition, and investigate the influence of post heat treatment on Schottky diodes. With the pre-deposition surface etching by dilute HCl, dilute NH4OH, or buffer oxide etchant (BOE), the performance of Schottky diodes compared with samples without surface pre-treatment is improved significantly. Auger electron spectroscopy (AES) analysis of the thermally annealed Schottky diode has been performed to investigate the failure mechanism. No significant change was found for samples annealed up to 450 degrees C. However, a drastic degradation of the barrier height and the ideality factor was observed in samples annealed at 500 degrees C, which may be caused by the interdiffusion and penetration of metals into the semiconductor. Copyright (C) 1996 Elsevier Science Ltd
關聯:	SOLID-STATE ELECTRONICS
顯示於類別:	[光電科學研究所] 期刊論文

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