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    • 1. 发明申请
    • METHOD FOR MANUFACTURING SOI SUBSTRATE
    • 制造SOI衬底的方法
    • US20100047997A1
    • 2010-02-25
    • US12505020
    • 2009-07-17
    • Akihiro ISHIZUKAShinya SASAGAWAMotomu KURATAAtsushi HIKOSAKATaiga MURAOKAHitoshi NAKAYAMA
    • Akihiro ISHIZUKAShinya SASAGAWAMotomu KURATAAtsushi HIKOSAKATaiga MURAOKAHitoshi NAKAYAMA
    • H01L21/762
    • H01L21/76254
    • It is an object of the preset invention to increase adhesiveness of a semiconductor layer and a base substrate and to reduce defective bonding. An oxide film is formed on a semiconductor substrate and the semiconductor substrate is irradiated with accelerated ions through the oxide film, whereby an embrittled region is formed at a predetermined depth from a surface of the semiconductor substrate. Plasma treatment is performed on the oxide film on the semiconductor substrate and the base substrate by applying a bias voltage, the surface of the semiconductor substrate and a surface of the base substrate are disposed opposite to each other, a surface of the oxide film is bonded to the surface of the base substrate, heat treatment is performed after the surface of the oxide film is bonded to the surface of the base substrate, and separation is caused along the embrittled region, whereby a semiconductor layer is formed over the base substrate with the oxide film interposed therebetween.
    • 本发明的一个目的是增加半导体层和基底衬底的粘附性并减少不良接合。 在半导体衬底上形成氧化物膜,半导体衬底通过氧化膜照射加速离子,从而在半导体衬底的表面形成预定深度的脆化区域。 通过施加偏置电压对半导体衬底和基底衬底上的氧化物膜进行等离子体处理,半导体衬底的表面和基底衬底的表面彼此相对设置,氧化膜的表面被接合 在基底表面上进行热处理之后,在氧化膜的表面接合到基底表面之后进行热处理,沿脆化区域分离,由此在基底基板上形成半导体层 氧化膜。
    • 5. 发明申请
    • SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF
    • 半导体器件及其制造方法
    • US20120003797A1
    • 2012-01-05
    • US13159804
    • 2011-06-14
    • Shinya SASAGAWAHitoshi NAKAYAMAMasashi TSUBUKUDaigo SHIMADA
    • Shinya SASAGAWAHitoshi NAKAYAMAMasashi TSUBUKUDaigo SHIMADA
    • H01L21/336
    • H01L29/7869H01L29/45H01L29/66969
    • When a transistor including a conductive layer having a three-layer structure is manufactured, three-stage etching is performed. In the first etching process, an etching method in which the etching rates for the second film and the third film are high is employed, and the first etching process is performed until the first film is at least exposed. In the second etching process, an etching method in which the etching rate for the first film is higher than that in the first etching process and the etching rate for a “layer provided below and in contact with the first film” is lower than that in the first etching process is employed. In the third etching process, an etching method in which the etching rates for the first to the third films are higher than those in the second etching process is preferably employed.
    • 当制造包括具有三层结构的导电层的晶体管时,进行三级蚀刻。 在第一蚀刻工艺中,采用其中第二膜和第三膜的蚀刻速率高的蚀刻方法,并且执行第一蚀刻处理直到第一膜至少暴露。 在第二蚀刻工艺中,第一膜的蚀刻速率高于第一蚀刻工艺中的蚀刻速率和“下面设置并与第一膜接触的”层的蚀刻速率的蚀刻方法低于 采用第一蚀刻工艺。 在第三蚀刻工艺中,优选使用其中第一至第三膜的蚀刻速率高于第二蚀刻工艺中的蚀刻速率的蚀刻方法。