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    • 3. 发明授权
    • Method of manufacturing semiconductor device
    • 制造半导体器件的方法
    • US06593217B1
    • 2003-07-15
    • US09635901
    • 2000-08-11
    • Masahiko Fujisawa
    • Masahiko Fujisawa
    • H01L2120
    • H01L21/28518H01L21/30604H01L21/3065H01L21/31116
    • A semiconductor device with low contact resistance which can cope with the miniaturization of semiconductor devices as well as a manufacturing method thereof which is easy and inexpensive can be obtained. Impurity regions on an Si substrate, an interlayer insulation film, source and drain interconnections, a metal silicide layer larger in diameter than the lower edge of the contact holes around the impurity regions are provided and the metal silicide layer includes an interface making up a border between the upper metal silicide layer contacting with the bottom of the interlayer insulation film and the lower metal silicide layer contacting with the impurity region surface. Thus, the contact area between the source and drain lines and the impurity regions can be increased via the metal silicide layer so as to reduce the contact resistance.
    • 可以获得能够应对半导体器件的小型化的具有低接触电阻的半导体器件及其制造方法,其容易且便宜。 提供Si衬底上的杂质区域,层间绝缘膜,源极和漏极互连,直径大于杂质区周围的接触孔的下边缘的金属硅化物层,并且金属硅化物层包括构成边界的界面 位于与层间绝缘膜的底部接触的上部金属硅化物层和与杂质区域表面接触的下部金属硅化物层之间。 因此,可以通过金属硅化物层增加源极线和漏极线与杂质区之间的接触面积,从而降低接触电阻。
    • 4. 发明授权
    • Semiconductor device with isolation insulator, interlayer insulation film, and a sidewall coating film
    • 具有隔离绝缘体的半导体器件,层间绝缘膜和侧壁涂层膜
    • US06472700B2
    • 2002-10-29
    • US09333653
    • 1999-06-16
    • Kazutoshi WakaoAkinobu TeramotoMasahiko Fujisawa
    • Kazutoshi WakaoAkinobu TeramotoMasahiko Fujisawa
    • H01L29792
    • H01L27/10855H01L21/76897H01L21/823425H01L21/823475H01L21/823481H01L27/10814Y10S257/90
    • A semiconductor device capable of suppressing increase in the junction leakage current and preventing deterioration in the electric characteristics even when the device is miniaturized, and a method of manufacturing thereof are attained. The semiconductor device includes a semiconductor substrate, an isolation insulator, a gate electrode, a coating film, an interlayer insulation film, and a sidewall coating film. The semiconductor substrate has a main surface. The isolation insulator is formed at the main surface of the semiconductor substrate and isolates a conductive region. The gate electrode is formed in the conductive region. The coating film is formed on the isolation insulator, and it has a sidewall and a film thickness of at most that of the gate electrode. The interlayer insulation film is formed on the coating film. The sidewall coating film is formed on the sidewall of the coating film, and it includes a material having an etching rate different from that of the interlayer insulation film.
    • 一种能够抑制结漏电流的增加并且即使在器件小型化时也防止电特性劣化的半导体器件及其制造方法。 半导体器件包括半导体衬底,隔离绝缘体,栅电极,涂膜,层间绝缘膜和侧壁涂覆膜。 半导体衬底具有主表面。 隔离绝缘体形成在半导体衬底的主表面并隔离导电区域。 栅电极形成在导电区域中。 该涂膜形成在隔离绝缘体上,并且其侧壁和至多为栅极电极的膜厚度。 层间绝缘膜形成在涂膜上。 侧壁涂膜形成在涂膜的侧壁上,并且其包括具有与层间绝缘膜的蚀刻速率不同的蚀刻速率的材料。