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    • 4. 发明申请
    • METHOD FOR FABRICATING MOS TRANSISTOR WITH RECESS CHANNEL
    • 用于制作带有通道的MOS晶体管的方法
    • US20080318388A1
    • 2008-12-25
    • US11955405
    • 2007-12-13
    • Shian-Jyh LinYu-Pi LeeJar-Ming HoShun-Fu ChenTse-Chuan Kuo
    • Shian-Jyh LinYu-Pi LeeJar-Ming HoShun-Fu ChenTse-Chuan Kuo
    • H01L21/20
    • H01L29/66621H01L27/10876H01L27/10879H01L29/66795H01L29/7854
    • A method for fabricating a MOS transistor with a recess channel, including: providing a substrate with a plurality of trench capacitors therein, wherein a trench top oxide is positioned on top of each trench capacitor and extended away from the substrate surface; forming a first spacer on side walls of the trench top oxide; forming a second spacer on the first spacer; defining a plurality of active areas, wherein each of the active areas is parallel with each other and comprises at least two of the trench capacitors; forming an isolation area between each of the active area; etching the substrate of the active area by using the second spacer as a mask to form a trench in the active area; removing the second spacer to expose a portion of the substrate, and etching the exposed substrate to enlarge the trench; and forming a gate structure in the trench.
    • 一种用于制造具有凹槽通道的MOS晶体管的方法,包括:在其中为衬底提供多个沟槽电容器,其中沟槽顶部氧化物位于每个沟槽电容器的顶部并且远离衬底表面延伸; 在所述沟槽顶部氧化物的侧壁上形成第一间隔物; 在所述第一间隔物上形成第二间隔物; 限定多个有效区域,其中每个有源区域彼此平行并且包括至少两个沟槽电容器; 在每个所述活动区域之间形成隔离区域; 通过使用第二间隔件作为掩模蚀刻有源区的衬底,以在有源区中形成沟槽; 去除所述第二间隔物以暴露所述衬底的一部分,并蚀刻所述暴露的衬底以扩大所述沟槽; 并在沟槽中形成栅极结构。
    • 10. 发明授权
    • Deep trench device with single sided connecting structure and fabrication method thereof
    • 具有单面连接结构的深沟槽器件及其制造方法
    • US07619271B2
    • 2009-11-17
    • US11940547
    • 2007-11-15
    • Shian-Jyh LinChien-Li Cheng
    • Shian-Jyh LinChien-Li Cheng
    • H01L29/94
    • H01L29/945H01L27/10823H01L27/10867H01L29/66181
    • A deep trench device with a single sided connecting structure. The device comprises a substrate having a trench therein. A buried trench capacitor is disposed in a lower portion of the trench. An asymmetric collar insulator is disposed on an upper portion of the sidewall of the trench. A connecting structure is disposed in the upper portion of the trench, comprising an epitaxial silicon layer disposed on and adjacent to a relatively low portion of the asymmetric collar insulator and a connecting member disposed between the epitaxial silicon layer and a relatively high portion of the asymmetric collar insulator. A conductive layer is disposed between the relatively high and low portions of the asymmetric collar insulator, to electrically connect the buried trench capacitor and the connecting structure. A cap layer is disposed on the connecting structure. A fabrication method for a deep trench device is also disclosed.
    • 具有单面连接结构的深沟槽装置。 该装置包括其中具有沟槽的衬底。 埋沟槽电容器设置在沟槽的下部。 不对称环形绝缘体设置在沟槽的侧壁的上部。 连接结构设置在沟槽的上部,包括设置在不对称环形绝缘体的相对较低部分上并与其相邻的外延硅层,以及设置在外延硅层和不对称的较高部分之间的连接构件 项圈绝缘子。 导电层设置在不对称环形绝缘体的相对较高和较低的部分之间,以电连接埋入沟槽电容器和连接结构。 盖层设置在连接结构上。 还公开了一种深沟槽器件的制造方法。