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    • 55. 发明授权
    • Method for ultra-thin gate oxide growth
    • 超薄栅极氧化物生长方法
    • US06649535B1
    • 2003-11-18
    • US10074928
    • 2002-02-12
    • Mo-Chiun YuShih-Chang Chen
    • Mo-Chiun YuShih-Chang Chen
    • H01L2131
    • H01L21/28185H01L21/02238H01L21/02255H01L21/02307H01L21/02312H01L21/31662
    • A method for forming an ultra-thin (between about 15 to 20 Angstroms), silicon dioxide gate insulator layer, featuring a process sequence which widens the process window of the thermal oxidation procedure, and improves the quality of the ultra-thin silicon dioxide gate insulator layer, has been developed. After a series of wet clean procedures applied to a semiconductor substrate, a high temperature anneal procedure is performed in an inert ambient. The high temperature anneal removes organic, as well as inorganic material not removed during the wet clean procedures, and also removes native oxide formed during these same wet clean procedures. The removal of these materials allow the use of longer thermal oxidation times still resulting in silicon dioxide thickness equal to counterparts formed using shorter oxidation times, which were not subjected to the pre-oxidation high temperature anneal procedure. In addition to the widening of the process window, or the use of extended oxidation times, allowed the use of higher oxidation temperatures, resulting in silicon dioxide gate insulator layers exhibiting higher dielectric quality than counterparts formed using lower oxidation temperatures.
    • 一种用于形成超薄(约15至20埃)的二氧化硅栅极绝缘体层的方法,其特征在于扩大热氧化程序的工艺窗口的工艺顺序,并且提高超薄二氧化硅栅极的质量 绝缘子层,已经开发。 在对半导体衬底施加一系列湿法清洁程序之后,在惰性环境中进行高温退火程序。 高温退火除去有机物以及在湿法清洁过程中未除去的无机材料,还可以除去在这些相同的湿法清洗过程中形成的天然氧化物。 这些材料的去除允许使用更长的热氧化时间,仍然导致二氧化硅厚度等于不经过预氧化高温退火工艺的较短氧化时间形成的对应物。 除了扩大工艺窗口,或者使用延长的氧化时间,允许使用更高的氧化温度,导致比使用较低氧化温度形成的对应物质更高的介电质量的二氧化硅栅极绝缘体层。
    • 56. 发明授权
    • Methods of forming high-k gate dielectrics and I/O gate oxides for advanced logic application
    • 形成高k栅极电介质和I / O栅极氧化物的方法用于高级逻辑应用
    • US06495422B1
    • 2002-12-17
    • US10035552
    • 2001-11-09
    • Mo-Chiun YuShih-Chang Chen
    • Mo-Chiun YuShih-Chang Chen
    • H01L218234
    • H01L21/28202H01L21/823462H01L21/823481H01L29/513H01L29/517H01L29/518
    • A method of simultaneously forming a high-k metal oxide dielectric layer and a gate oxide dielectric layer comprising the following steps. A structure having isolation regions which separate the structure into at least one core device active region and one I/O active region is provided. A buffer layer is formed over the structure and the isolation regions. A metal containing layer is formed over the buffer layer. The metal containing layer and the buffer layer are patterned to: form an exposed patterned metal containing layer within the at least one core device action region; and expose the structure within the at least one I/O active region. The exposed patterned metal containing layer and the exposed structure within the at least one I/O active region are oxidized to simultaneously form: the high-k metal oxide dielectric layer within the at least one core device active region; and the gate oxide dielectric layer within the at least one I/O active region.
    • 一种同时形成高k金属氧化物电介质层和栅极氧化物电介质层的方法,包括以下步骤。 提供具有将结构分离成至少一个核心器件有源区和一个I / O有源区的隔离区的结构。 在结构和隔离区上形成缓冲层。 在缓冲层上形成含金属层。 图案化含金属层和缓冲层以在至少一个核心器件作用区域内形成暴露图案化的含金属层; 以及暴露所述至少一个I / O活动区域内的结构。 曝光的图案化的金属含有层和暴露的结构在至少一个I / O有源区内被氧化,同时形成:至少一个核心器件有源区内的高k金属氧化物介电层; 以及所述至少一个I / O有源区内的栅极氧化物介电层。
    • 60. 发明授权
    • Method of forming contacts for a semiconductor device
    • 形成半导体器件的触点的方法
    • US08222136B2
    • 2012-07-17
    • US12906868
    • 2010-10-18
    • Yuan-Tien TuTsai-Chun LiHuan-Just LinShih-Chang Chen
    • Yuan-Tien TuTsai-Chun LiHuan-Just LinShih-Chang Chen
    • H01L21/4763
    • H01L21/76814H01L21/02063H01L21/76816
    • The present disclosure provides a method of fabricating a semiconductor device. The method includes forming a layer over a substrate. The method includes forming a first opening in the layer that exposes a first region of the substrate. The method includes removing a first oxidation layer formed over the first region through a first sputtering process. The method includes filling the first opening with a conductive material. The method includes forming a second opening in the layer that exposes a second region of the substrate, the second region being different from the first region. The method includes removing a second oxidation layer formed over the second region through a second sputtering process. One of the first and second sputtering processes is more powerful than the other.
    • 本公开提供了制造半导体器件的方法。 该方法包括在衬底上形成层。 所述方法包括在所述层中形成暴露所述衬底的第一区域的第一开口。 该方法包括通过第一溅射工艺去除在第一区域上形成的第一氧化层。 该方法包括用导电材料填充第一开口。 所述方法包括在所述层中形成暴露所述衬底的第二区域的第二开口,所述第二区域不同于所述第一区域。 该方法包括通过第二溅射工艺除去在第二区域上形成的第二氧化层。 第一和第二溅射工艺之一比另一个更强大。