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    • 5. 发明授权
    • Semiconductor device and manufacturing method thereof
    • 半导体装置及其制造方法
    • US08575652B2
    • 2013-11-05
    • US12353330
    • 2009-01-14
    • Yoshiki Kamata
    • Yoshiki Kamata
    • H01L29/78H01L21/336
    • H01L29/1083H01L21/26506H01L21/28255H01L29/66477
    • An exemplary embodiment provides a semiconductor device, in which a junction leakage current is reduced in MISFET including a source/drain impurity layer formed in a semiconductor region containing Ge, and a semiconductor device manufacturing method. The semiconductor device includes a channel region which is formed in a semiconductor substrate; a gate insulator which is formed on a surface of the channel region; a gate electrode which is formed on the gate insulator; and source/drain impurity layers which are formed on both sides of the channel region. In the semiconductor device, at least part of the source/drain impurity layer is formed in a semiconductor region containing Ge in the semiconductor substrate, and at least an element selected from a group including S, Se, and Te is contained in the semiconductor region which is deeper than a junction depth of the source/drain impurity layer.
    • 示例性实施例提供了一种半导体器件,其中包括在包含Ge的半导体区域中形成的源极/漏极杂质层的MISFET中的结漏电流减小,以及半导体器件制造方法。 半导体器件包括形成在半导体衬底中的沟道区; 栅极绝缘体,其形成在沟道区域的表面上; 形成在栅极绝缘体上的栅电极; 以及形成在沟道区两侧的源/漏杂质层。 在半导体器件中,源极/漏极杂质层的至少一部分形成在半导体衬底中含有Ge的半导体区域中,并且至少从包括S,Se和Te的组中选出的元素包含在半导体区域 其比源/漏杂质层的结深深。