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    • 5. 发明授权
    • Doped single crystal silicon silicided eFuse
    • 掺杂单晶硅硅片eFuse
    • US07572724B2
    • 2009-08-11
    • US12043226
    • 2008-03-06
    • Edward J. NowakJed H. RankinWilliam R. TontiRichard Q. Williams
    • Edward J. NowakJed H. RankinWilliam R. TontiRichard Q. Williams
    • H01L21/00
    • H01L27/10H01L23/5256H01L2924/0002H01L2924/3011H01L2924/00
    • An eFuse begins with a single crystal silicon-on-insulator (SOI) structure that has a single crystal silicon layer on a first insulator layer. The single crystal silicon layer is patterned into a strip. Before or after the patterning, the single crystal silicon layer is doped with one or more impurities. At least an upper portion of the single crystal silicon layer is then silicided to form a silicided strip. In one embodiment the entire single crystal silicon strip is silicided to create a silicide strip. Second insulator(s) is/are formed on the silicide strip, so as to isolate the silicided strip from surrounding structures. Before or after forming the second insulators, the method forms electrical contacts through the second insulators to ends of the silicided strip. By utilizing a single crystal silicon strip, any form of semiconductor, such as a diode, conductor, insulator, transistor, etc. can form the underlying portion of the fuse structure. The overlying silicide material allows the fuse to act as a conductor in its unprogrammed state. However, contrary to metal or polysilicon based eFuses which only comprise an insulator in the programmed state, when the inventive eFuse is programmed (and the silicide is moved or broken) the underlying semiconductor structure operates as an active semiconductor device.
    • eFuse从在第一绝缘体层上具有单晶硅层的单晶硅绝缘体(SOI)结构开始。 将单晶硅层图案化成条带。 在构图之前或之后,单晶硅层掺杂有一种或多种杂质。 至少单晶硅层的上部然后被硅化以形成硅化带。 在一个实施例中,整个单晶硅带被硅化以产生硅化物条。 在硅化物条上形成第二绝缘体,从而将硅化物带与周围结构隔离。 在形成第二绝缘体之前或之后,该方法通过第二绝缘体形成与硅化带的端部的电接触。 通过使用单晶硅条,任何形式的半导体,例如二极管,导体,绝缘体,晶体管等都可以形成熔丝结构的下面部分。 上覆的硅化物材料允许熔丝作为未编程状态的导体。 然而,与仅编程状态的仅包含绝缘体的金属或多晶硅基eFuse相反,当本发明的eFuse被编程(并且硅化物被移动或断开)时,下面的半导体结构作为有源半导体器件工作。
    • 7. 发明申请
    • CURVED FINFETS
    • 弯曲的熔体
    • US20080164535A1
    • 2008-07-10
    • US11621228
    • 2007-01-09
    • Dureseti ChidambarraoShreesh NarasimhaEdward J. NowakJohn J. PekarikJeffrey W. SleightRichard Q. Williams
    • Dureseti ChidambarraoShreesh NarasimhaEdward J. NowakJohn J. PekarikJeffrey W. SleightRichard Q. Williams
    • H01L29/78H01L21/336
    • H01L29/785H01L29/0649H01L29/66795H01L29/7843
    • A method of forming a transistor patterns a semiconductor fin on a substrate, such that the fin extends from the substrate. Then, the method forms a gate conductor over a central portion of the fin, leaving end portions of the fin exposed. Next, the end portions of the fin are doped with at least one impurity to leave the central portion of the fin as a semiconductor and form the end portions of the fin as conductors. The end portions of the fin are undercut to disconnect the end portions of the fin from the substrate, such that the fin is connected to the substrate along a central portion and is disconnected from the substrate along the end portions and that the end portions are free to move and the central portion is not free to move. A straining layer is formed on a first side of the fin and the straining layer imparts physical pressure on the fin such that the end portions are permanently moved away from a straight-line orientation with the central portion after the forming of the straining layer. Thus, the undercutting in combination with the forming of the straining layer curves the fin such that, when viewed from a top of the substrate, the fin is bowed and has a curved shape.
    • 一种形成晶体管的方法在衬底上形成半导体鳍片,使得鳍片从衬底延伸。 然后,该方法在鳍片的中心部分上形成栅极导体,使翅片的端部部分露出。 接下来,翅片的端部掺杂有至少一种杂质,以使翅片的中心部分作为半导体,并将翅片的端部形成为导体。 翅片的端部被底切以使翅片的端部与基板断开,使得翅片沿着中心部分连接到基板,并且沿着端部与基板断开,并且端部部分是自由的 移动,中央部分不能自由移动。 在翅片的第一侧上形成有应变层,并且应变层在翅片上施加物理压力,使得端部在紧固层形成之后永久地与中心部分的直线取向远离。 因此,与形成应变层相结合的底切使翅片弯曲,使得当从基板的顶部观察时,翅片弯曲并具有弯曲形状。
    • 10. 发明授权
    • Structure and method for thin box SOI device
    • 薄盒SOI器件的结构和方法
    • US07217604B2
    • 2007-05-15
    • US10906014
    • 2005-01-31
    • Toshiharu FurukawaCarl J. RadensWilliam R. TontiRichard Q. Williams
    • Toshiharu FurukawaCarl J. RadensWilliam R. TontiRichard Q. Williams
    • H01L21/84
    • H01L29/66772H01L29/665H01L29/78606H01L29/78612
    • A method of forming a semiconductor device, including providing a substrate having a first insulative layer on a surface of the substrate, and a device layer on a surface of the first insulative layer, forming a spacer around the first insulative layer and the device layer, removing a portion of the substrate adjacent to the first insulative layer in a first region and a non-adjacent second region of the substrate, such that an opening is formed in the first and second regions of the substrate, leaving the substrate adjacent to the first insulative layer in a third region of the substrate, filling the opening within the first and second regions of the substrate, planarizing a surface of the device, and forming a device within the device layer, such that diffusion regions of the device are formed within the device layer above the first and second regions of the substrate, and a channel region of the device is formed above the third region of the substrate.
    • 一种形成半导体器件的方法,包括在所述衬底的表面上提供具有第一绝缘层的衬底以及在所述第一绝缘层的表面上的器件层,在所述第一绝缘层和所述器件层周围形成间隔物, 在衬底的第一区域和不相邻的第二区域中移除邻近第一绝缘层的衬底的一部分,使得在衬底的第一和第二区域中形成开口,使衬底与第一绝缘层相邻, 在衬底的第三区域中的绝缘层,填充衬底的第一和第二区域内的开口,使器件的表面平坦化,以及在器件层内形成器件,使得器件的扩散区域形成在 器件层在衬底的第一和第二区域之上,并且器件的沟道区形成在衬底的第三区域上方。