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    • 5. 发明申请
    • MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE AND SEMICONDUCTOR DEVICE
    • 半导体器件和半导体器件的制造方法
    • US20110309451A1
    • 2011-12-22
    • US13116727
    • 2011-05-26
    • Masanori Tsukamoto
    • Masanori Tsukamoto
    • H01L27/092H01L21/8238
    • H01L21/823807H01L21/28114H01L21/823842H01L21/823871H01L29/42376H01L29/66545H01L29/7833H01L29/7843H01L2924/0002H01L2924/00
    • A manufacturing method of a semiconductor device includes: forming a first gate insulating film on a semiconductor substrate in first and second regions in an active area; forming first gate electrodes on the first gate insulating film in the first and second regions; forming source/drain regions by introducing impurities at both sides of the first gate electrode in the first and second regions; performing heat treatment of activating the impurities; forming a stress liner film so as to cover the whole surface of first gate electrodes in the first and second regions; removing the stress liner film at an upper portion of the first gate electrode in the second region while allowing the stress liner film at least at a portion in the first region to remain to expose the upper portion of the first gate electrode in the second region; forming a groove by removing the first gate electrode in the second region; and forming a second gate electrode in the groove.
    • 半导体器件的制造方法包括:在有源区域中的第一和第二区域中的半导体衬底上形成第一栅极绝缘膜; 在所述第一和第二区域中的所述第一栅极绝缘膜上形成第一栅电极; 通过在第一和第二区域中的第一栅电极的两侧引入杂质来形成源/漏区; 进行活化杂质的热处理; 形成应力衬垫膜,以覆盖第一和第二区域中的第一栅电极的整个表面; 在所述第二区域中移除所述第一栅电极的上部处的所述应力衬垫膜,同时使所述应力衬垫膜至少在所述第一区域的一部分处保持暴露于所述第二区域中的所述第一栅电极的上部; 通过去除所述第二区域中的所述第一栅极电极而形成沟槽; 以及在所述凹槽中形成第二栅电极。
    • 8. 发明授权
    • Fabrication method for semiconductor device
    • 半导体器件制造方法
    • US5723356A
    • 1998-03-03
    • US688117
    • 1996-07-29
    • Masanori Tsukamoto
    • Masanori Tsukamoto
    • H01L21/265H01L21/28H01L21/8238H01L27/092H01L21/70
    • H01L21/823835H01L21/28061
    • A first Poly-Si film and an a-Si film are formed on a semiconductor base body at a first step, and phosphorus ions (N-type impurity) are implanted in the a-Si film at an NMOS forming region and boron ions (P-type impurity) are implanted in the a-Si film at a PMOS forming region at a second step. The a-Si film is crystallized to form a second Poly-Si film and at the same time the impurities are diffused in the second Poly-Si film thus obtained and the first Poly-Si film at a third step. After that, a WSi.sub.x film is formed on the second Poly-Si film at a fourth step, and an offset oxide film is formed on the WSi.sub.x film at a fifth step. With this method, it is possible to suppress mutual diffusion of impurities having conducting types different from each other and hence to fabricate a semiconductor device such as a CMOS, which is low in variations in threshold voltage and excellent in device characteristics.
    • 首先在半导体基体上形成第一多晶硅膜和a-Si膜,在NMOS形成区域的a-Si膜中注入磷离子(N型杂质),将硼离子 P型杂质)在第二步骤的PMOS形成区域注入到a-Si膜中。 使a-Si膜结晶化,形成第二多晶硅膜,同时在第三步骤中杂质扩散到如此获得的第二多晶硅膜和第一多晶硅膜中。 之后,在第四步上在第二多晶硅膜上形成WSix膜,第五步在WSix膜上形成偏移氧化物膜。 利用这种方法,可以抑制具有彼此不同的导电类型的杂质的相互扩散,从而制造阈值电压变化低,器件特性优异的诸如CMOS的半导体器件。
    • 9. 发明授权
    • Method for forming multi-layer interconnections
    • 形成多层互连的方法
    • US5700349A
    • 1997-12-23
    • US585772
    • 1996-01-16
    • Masanori TsukamotoTetsuo Gocho
    • Masanori TsukamotoTetsuo Gocho
    • H01L21/3205H01L21/768H01L23/522H01L21/00
    • H01L21/76897H01L21/76834H01L2924/0002
    • A method of forming a multi-layer interconnection in which through-holes are formed in an interlayer insulating layer positioned between two neighboring mid interconnection layers, which through-hole is used for establishing an electrical interconnection between upper and lower interconnection layers, comprising the steps of forming an offset insulating film on said mid interconnection layer such that the patterns of the mid interconnection layer and the offset insulating film are the same; forming a sidewall insulating film on the lateral wall surface of a pattern made up of said mid interconnection layer and the offset insulating film; substantially conformally forming an etch stop layer covering the entire surface of the substrate, said etching stop layer being slower in etch rate than said interlayer insulating film; anisotropically etching said interlayer insulating film in a region having an opening size smaller than the spacing between the interconnecting layers; selectively removing the etching stop layer exposed on the bottom surface of said region for completing the through-hole; and filling said through-hole with an electrically conductive material.
    • 一种形成多层互连的方法,其中在位于两个相邻的中间互连层之间的层间绝缘层中形成通孔,该通孔用于在上互连层和下互连层之间建立电互连,所述方法包括以下步骤 在所述中间互连层上形成偏移绝缘膜,使得中间互连层和偏移绝缘膜的图案相同; 在由所述中间互连层和所述偏移绝缘膜构成的图案的侧壁表面上形成侧壁绝缘膜; 基本上保形地形成覆盖衬底的整个表面的蚀刻停止层,所述蚀刻停止层的蚀刻速率比所述层间绝缘膜慢; 在开口尺寸小于互连层之间的间隔的区域中各向异性地蚀刻所述层间绝缘膜; 选择性地去除暴露在所述区域的底表面上的用于完成通孔的蚀刻停止层; 并用导电材料填充所述通孔。
    • 10. 发明授权
    • Method of making a contact hole in a semiconductor device
    • 在半导体器件中形成接触孔的方法
    • US5643833A
    • 1997-07-01
    • US495268
    • 1995-06-27
    • Masanori Tsukamoto
    • Masanori Tsukamoto
    • H01L21/027H01L21/311H01L21/3205H01L21/768H01L23/522H01L29/78
    • H01L21/31144H01L21/76897
    • A method of manufacturing a semiconductor device with multi-layer interconnections is disclosed. The method includes the steps of: forming a first electrically conductive interconnection layer on an insulating layer formed on a lower interconnection layer; forming an insulating layer on the first electrically conductive interconnection layer; forming an antireflection layer on the insulating layer; patterning the first electrically conductive interconnection layer, the insulating layer and the antireflection layer to form a stacked film composed of the first electrically conductive interconnection layer, the insulating layer and the antireflection layer; forming a sidewall on the stacked film; forming an interlayer insulating layer on entire surface of the stacked film having the sidewall formed thereon and the insulating layer; forming a contact hole to expose a selected portion of the lower interconnection layer using the sidewall as a mask; and depositing a second electrically conductive interconnection layer in the contact hole at the exposed portion of the lower interconnection layer.
    • 公开了一种制造具有多层互连的半导体器件的方法。 该方法包括以下步骤:在形成在下互连层上的绝缘层上形成第一导电互连层; 在所述第一导电互连层上形成绝缘层; 在绝缘层上形成抗反射层; 图案化第一导电互连层,绝缘层和抗反射层,以形成由第一导电互连层,绝缘层和抗反射层构成的叠层膜; 在所述层叠膜上形成侧壁; 在其侧壁形成的层叠膜的整个表面上形成层间绝缘层和绝缘层; 形成接触孔,以使用所述侧壁作为掩模来暴露所述下互连层的选定部分; 以及在所述下互连层的暴露部分的所述接触孔中沉积第二导电互连层。