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    • 22. 发明授权
    • Method of forming metal-disilicide layers and contacts
    • 形成金属二硅化物层和接触的方法
    • US5449642A
    • 1995-09-12
    • US227659
    • 1994-04-14
    • Teh Y. TanGary E. McGuireWilliam T. Lynch
    • Teh Y. TanGary E. McGuireWilliam T. Lynch
    • H01L21/285H01L21/336H01L23/482H01L29/45H01L21/44H01L21/48
    • H01L29/66772H01L21/28518H01L23/4825H01L29/458H01L2924/0002
    • A method of forming a metal-disilicide (MSi.sub.2) film from a silicon-on-insulator (SOI) substrate having an insulating underlayer and a silicon outerlayer includes the formation of a first capping layer on a portion of the silicon outerlayer. The first capping layer preferably includes titanium and a preselected metal (M) such as cobalt. A step is then performed to convert a first portion of the silicon outerlayer to metal-disilicide. This step is preferably accomplished by a rapid thermal annealing step. Thereafter, a second capping layer is formed on the metal-disilicide layer. The second capping layer preferably includes titanium and metal-monosilicide (MSi). Next, a step is performed to convert a second portion of the silicon outerlayer, beneath the first portion, to metal-disilicide while preventing phase-reversal of the already formed metal-disilicide layer to metal-monosilicide. This step is preferably accomplished by a rapid thermal annealing step as well. The method can preferably be used to form low resistance metal-disilicide contacts to active regions of SOI electronic devices.
    • 从具有绝缘底层和硅外层的绝缘体上硅(SOI)衬底形成金属二硅化物(MSi2)膜的方法包括在硅外层的一部分上形成第一覆盖层。 第一覆盖层优选包括钛和预选的金属(M)如钴。 然后进行步骤以将硅外层的第一部分转化为金属二硅化物。 该步骤优选通过快速热退火步骤完成。 此后,在金属二硅化物层上形成第二覆盖层。 第二盖层优选包括钛和金属一硅化物(MSi)。 接下来,执行步骤,以将第二部分之下的硅外层的第二部分在第一部分之下转化为金属二硅化物,同时防止已经形成的金属二硅化物层与金属一硅化物相反相。 该步骤也优选通过快速热退火步骤完成。 该方法可优选用于形成低电阻金属二硅化物与SOI电子器件的有源区的接触。
    • 25. 发明授权
    • Methods for fabricating latchup-preventing CMOS device
    • 用于制造防止闭锁的CMOS器件的方法
    • US4766090A
    • 1988-08-23
    • US933631
    • 1986-11-21
    • Gerald A. CoquinWilliam T. LynchLouis C. Parrillo
    • Gerald A. CoquinWilliam T. LynchLouis C. Parrillo
    • H01L21/763H01L21/425
    • H01L21/763
    • A new CMOS device which avoids latchup while achieving a spacing between the n-channel and p-channel FETs of the device smaller than 10 .mu.m, as well as a method for fabricating the choice, is disclosed.The inventive device, which is formed in a substrate comprising a relatively heavily doped bulk region supporting a relatively thin, moderately doped layer, includes a polysilicon-filled trench extending through a portion of the layer, between the n- and p-channel FETs of the device. The inventive device also includes a relatively heavily doped region extending from a bottom of the trench to the bulk region. The polysilicon-filled trench, in combination with both the relatively heavily doped region and bulk region, prevents latchup.
    • 公开了一种新的CMOS器件,其避免了在小于10μm的器件的n沟道FET和p沟道FET之间实现间隔而闭锁,以及制造该选择的方法。 本发明的器件,其形成在包括相对重掺杂的体区域的衬底中,该衬底包括相对较薄的适中掺杂层,其包括延伸穿过层的一部分的多晶硅填充沟槽,其中n沟道FET和p沟道FET之间 装置。 本发明的器件还包括从沟槽的底部延伸到体区的相对重掺杂的区域。 掺杂多晶硅的沟槽与相对重掺杂的区域和体区两者结合防止闭锁。
    • 30. 发明授权
    • Latchup-preventing CMOS device
    • 防闩锁CMOS器件
    • US4647957A
    • 1987-03-03
    • US857392
    • 1986-04-21
    • Gerald A. CoquinWilliam T. LynchLouis C. Parrillo
    • Gerald A. CoquinWilliam T. LynchLouis C. Parrillo
    • H01L21/763H01L27/092H01L27/02H01L29/06
    • H01L27/0921H01L21/763
    • A new CMOS device which avoids latchup while achieving a spacing between the n-channel and p-channel FETs of the device smaller than 10 .mu.m, as well as a method for fabricating the choice, is disclosed. The inventive device, which is formed in a substrate comprising a relatively heavily doped bulk region supporting a relatively thin, moderately doped layer, includes a polysilicon-filled trench extending through a portion of the layer, between the n- and p-channel FETs of the device. The inventive device also includes a relatively heavily doped region extending from a bottom of the trench to the bulk region. The polysilicon-filled trench, in combination with both the relatively heavily doped region and bulk region, prevents latchup.
    • 公开了一种新的CMOS器件,其避免了在小于10μm的器件的n沟道FET和p沟道FET之间实现间隔而闭锁,以及制造该选择的方法。 本发明的器件,其形成在包括相对重掺杂的体区域的衬底中,该衬底包括相对较薄的适中掺杂层,其包括延伸穿过层的一部分的多晶硅填充沟槽,其中n沟道FET和p沟道FET之间 装置。 本发明的器件还包括从沟槽的底部延伸到体区的相对重掺杂的区域。 掺杂多晶硅的沟槽与相对重掺杂的区域和体区两者结合防止闭锁。