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    • 24. 发明授权
    • Semiconductor device
    • 半导体器件
    • US07692194B2
    • 2010-04-06
    • US12015362
    • 2008-01-16
    • Shunpei YamazakiAtsuo IsobeHiromichi Godo
    • Shunpei YamazakiAtsuo IsobeHiromichi Godo
    • H01L29/04H01L31/036H01L31/0376H01L31/20
    • H01L29/78621H01L29/42384H01L29/4908H01L29/66757H01L29/78618H01L2924/0002H01L2924/00
    • A semiconductor device having a novel structure by which the operating characteristics and reliability are improved and a manufacturing method thereof. An island-shaped semiconductor layer provided over a substrate, including a channel formation region provided between a pair of impurity regions; a first insulating layer provided so as to be in contact with the side surface of the semiconductor layer; a gate electrode provided over the channel formation region so as to get across the semiconductor layer; and a second insulating layer provided between the channel formation region and the gate electrode are included. The semiconductor layer is locally thinned, the channel formation region is provided in the thinned region, and the second insulating layer covers the first insulating layer provided on the side surface of the semiconductor layer at least in the region which overlaps with the gate electrode.
    • 具有改善其操作特性和可靠性的新颖结构的半导体器件及其制造方法。 一种岛状半导体层,设置在衬底上,包括设置在一对杂质区之间的沟道形成区; 设置成与半导体层的侧表面接触的第一绝缘层; 栅电极,设置在所述沟道形成区上方以穿过所述半导体层; 并且包括设置在沟道形成区域和栅电极之间的第二绝缘层。 半导体层被局部变薄,沟道形成区域设置在减薄区域中,并且第二绝缘层至少在与栅电极重叠的区域中覆盖设置在半导体层的侧表面上的第一绝缘层。