THICK EPITAXIAL SILICON BY GRAIN REORIENTATION ANNEALING AND APPLICATIONS THEREOF
摘要
<p>The invention provides a high temperature (about 1150 C or greater) annealing process for converting thick poly crystalline Si layers on the order of 1 µm to 40 µm on a single crystal seed layer into thick single crystal Si layers having the orientation of the seed layer, thus allowing production of thick Si films having the quality of single crystal silicon at high rates and low cost of processing. Methods of integrating such high temperature processing into solar cell fabrication are described, with particular attention to process flows in which the seed layer is disposed on a porous silicon release layer. Another aspect pertains to the use of similar high temperature anneals for poly-Si grain growth and grain boundary passivation. A further aspect relates to structures in which these thick single crystal Si films and passivated poly-Si films are incorporated.</p>
申请公布号
WO2010060673(A1)
申请公布日期
2010.06.03
申请号
WO2009EP62918
申请日期
2009.10.05
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION;IBM UNITED KINGDOM LIMITED;SAENGER, KATHERINE;DE SOUZA, JOEL;FOGEL, KEITH;SADANA, DEVENDRA;INNS, DANIEL
发明人
SAENGER, KATHERINE;DE SOUZA, JOEL;FOGEL, KEITH;SADANA, DEVENDRA;INNS, DANIEL