Invention Application
WO2005045901A3 METHOD AND STRUCTURE FOR FORMING STRAINED Si FOR CMOS DEVICES 审中-公开
用于形成用于CMOS器件的应变Si的方法和结构

METHOD AND STRUCTURE FOR FORMING STRAINED Si FOR CMOS DEVICES
Abstract:
A method for manufacturing a device including an n-type device and a p-type device. In an aspect of the invention, the method involves doping a portion of a semiconductor substrate (200) and forming a gap (219) in the semiconductor substrate (200) by removing at least a portion of the doped portion of the semiconductor substrate (200). The method further involves growing a strain layer (227) in at least a portion of the gap (219) in the semiconductor substrate (200). For the n-type device, the strain layer (227) is grown on at least a portion which is substantially directly under a channel of the n-type device. For the p-type device, the strain layer is grown on at least a portion which is substantially directly under a source region or drain region of the p-type device and not substantially under a channel of the p-type device.
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