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    • 9. 发明授权
    • Method of manufacturing a semiconductor integrated circuit device having
SOI structure
    • 具有SOI结构的半导体集成电路器件的制造方法
    • US5077235A
    • 1991-12-31
    • US466059
    • 1990-01-16
    • Daisuke Kosaka
    • Daisuke Kosaka
    • H01L21/20H01L21/268H01L21/762
    • H01L21/76248H01L21/2026H01L21/268Y10S148/152
    • A method of manufacturing a semiconductor integrated circuit device having a SOI structure includes the following steps. The first step is to form a semiconductor layer on a dielectric substrate. The second step is to form an oxide layer on the formed semiconductor layer. The third step is to form a nitride layer on the formed oxide layer. The fourth step is to remove a part of a plurality of layers composed of the semiconductor layer, the oxide layer, and a nitride layer so as to form a separated region in the layers. The fifth step is to coat a cooling agent on a surface of the nitride layer. The sixth step is to irradiate an energy beam from an outer surface of the cooling agent so as to monocrystallize the semiconductor layer. The seventh step is to remove the cooling agent from the surface of the nitride layer. And the final step is to oxidize a portion of the semiconductor layer located in the separated region by using the nitride layer. A semiconductor integrated circuit device having a SOI structure includes a semiconductor layer formed on a dielectric substrate, an oxide film formed on the semiconductor layer, a nitride layer formed on the oxide film, and a monocrystallized and oxidized semiconductor layer formed in hole portions formed in the semiconductor layer passing through the oxide layer and the nitride layer.
    • 制造具有SOI结构的半导体集成电路器件的方法包括以下步骤。 第一步是在电介质基板上形成半导体层。 第二步是在形成的半导体层上形成氧化物层。 第三步是在所形成的氧化物层上形成氮化物层。 第四步骤是去除由半导体层,氧化物层和氮化物层组成的多个层的一部分,以在层中形成分离的区域。 第五步是在氮化物层的表面上涂覆冷却剂。 第六步是从冷却剂的外表面照射能量束,以使半导体层单晶化。 第七步骤是从氮化物层的表面除去冷却剂。 最后一步是通过使用氮化物层来氧化位于分离区域中的半导体层的一部分。 具有SOI结构的半导体集成电路器件包括形成在电介质基板上的半导体层,形成在半导体层上的氧化膜,形成在氧化物膜上的氮化物层,以及形成在孔部中的单晶氧化半导体层 半导体层通过氧化物层和氮化物层。