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    • 43. 发明申请
    • PROGRAMMABLE SEMICONDUCTOR DEVICE CONTAINING A VERTICALLY NOTCHED FUSIBLE LINK REGION AND METHODS OF MAKING AND USING SAME
    • 包含垂直可编程可熔连接区域的可编程半导体器件及其制造和使用方法
    • US20070029576A1
    • 2007-02-08
    • US11161439
    • 2005-08-03
    • Edward NowakJed RankinWilliam Tonti
    • Edward NowakJed RankinWilliam Tonti
    • H01L27/10
    • H01L27/10H01L23/5256H01L29/66795H01L29/785H01L2924/0002H01L2924/00
    • The present invention relates to a programmable semiconductor device, preferably a FinFET or tri-gate structure, that contains a first contact element, a second contact element, and at least one fin-shaped fusible link region coupled between the first and second contact elements. The second contact element is laterally spaced apart from the first contact element, and the fin-shaped fusible link region has a vertically notched section. A programming current flowing through the fin-shaped fusible link region causes either significant resistance increase or formation of an electric discontinuity in the vertically notched section. Alternatively, the vertically notched section may contain a dielectric material, and application of a programming voltage between a gate electrode overlaying the vertically notched section and one of the contact elements breaks down the dielectric material and allows current flow between the gate electrode and the fin-shaped fusible link region.
    • 本发明涉及一种可编程半导体器件,优选地为FinFET或三栅极结构,其包含第一接触元件,第二接触元件以及耦合在第一和第二接触元件之间的至少一个鳍状可熔连接区域。 第二接触元件与第一接触元件横向间隔开,并且鳍状可熔连接区域具有垂直切口部分。 流过翅片状易熔连接区域的编程电流导致垂直切口部分中显着的电阻增加或电中断的形成。 或者,垂直切口部分可以包含电介质材料,并且在覆盖垂直切口部分的栅极电极和其中一个接触元件之间施加编程电压会破坏电介质材料,并允许电流在栅电极和鳍片间电流之间流动, 形易熔连接区域。
    • 44. 发明申请
    • DOPED SINGLE CRYSTAL SILICON SILICIDED EFUSE
    • 单晶硅晶硅胶
    • US20070026579A1
    • 2007-02-01
    • US11161320
    • 2005-07-29
    • Edward NowakJed RankinWilliam TontiRichard Williams
    • Edward NowakJed RankinWilliam TontiRichard Williams
    • H01L21/84
    • 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。