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    • 3. 发明申请
    • POLYSILICON RESISTOR AND E-FUSE FOR INTEGRATION WITH METAL GATE AND HIGH-K DIELECTRIC
    • 用于与金属栅和高K电介质集成的多晶硅电阻器和电子熔断器
    • US20110215321A1
    • 2011-09-08
    • US12719289
    • 2010-03-08
    • Roger A. Booth, JR.Kangguo ChengRainer LoesingChengwen PeiXiaojun Yu
    • Roger A. Booth, JR.Kangguo ChengRainer LoesingChengwen PeiXiaojun Yu
    • H01L29/12H01L21/02H01L21/768H01L29/86H01L23/525
    • H01L21/02H01L21/768H01L23/525H01L29/12H01L29/86H01L2924/0002H01L2924/00
    • A method is provided for making a resistive polycrystalline semiconductor device, e.g., a poly resistor of a microelectronic element such as a semiconductor integrated circuit. The method can include: (a) forming a layered stack including a dielectric layer contacting a surface of a monocrystalline semiconductor region of a substrate, a metal gate layer overlying the dielectric layer, a first polycrystalline semiconductor region adjacent the metal gate layer having a predominant dopant type of either n or p, and a second polycrystalline semiconductor region spaced from the metal gate layer by the first polycrystalline semiconductor region and adjoining the first polycrystalline semiconductor region; and (b) forming first and second contacts in conductive communication with the second polycrystalline semiconductor region, the first and second contacts being spaced apart so as to achieve a desired resistance. In a variation thereof, an electrical fuse is formed which includes a continuous silicide region through which a current can be passed to blow the fuse. Some of the steps of fabricating the poly resistor or the electrical fuse can be employed simultaneously in fabricating metal gate field effect transistors (FETs) on the same substrate.
    • 提供了一种用于制造电阻性多晶半导体器件的方法,例如诸如半导体集成电路的微电子元件的多晶硅电阻器。 该方法可以包括:(a)形成层叠堆叠,其包括与衬底的单晶半导体区域的表面接触的电介质层,覆盖在电介质层上的金属栅极层,与金属栅极层相邻的第一多晶半导体区域, 掺杂剂类型的n或p,以及第二多晶半导体区域,其与所述第一多晶半导体区域与所述金属栅极层隔开并邻接所述第一多晶半导体区域; 和(b)形成与所述第二多晶半导体区域导电连通的第一和第二触点,所述第一和第二触点间隔开以达到期望的电阻。 在其变型中,形成电熔丝,其包括连续的硅化物区域,电流可以通过该硅化物区域通过以熔断熔丝。 在同一衬底上制造金属栅极场效应晶体管(FET)的同时可以同时采用制造多晶硅电阻器或电熔丝的步骤。
    • 4. 发明申请
    • SHALLOW TRENCH CAPACITOR COMPATIBLE WITH HIGH-K / METAL GATE
    • 与高K /金属闸门兼容的低压电容器
    • US20090242953A1
    • 2009-10-01
    • US12059174
    • 2008-03-31
    • Roger A. Booth, JR.MaryJane BrodskyKangguo ChengChengwen Pei
    • Roger A. Booth, JR.MaryJane BrodskyKangguo ChengChengwen Pei
    • H01L27/108H01L21/8242G06F17/50
    • H01L27/0629
    • Forming a shallow trench capacitor in conjunction with an FET by forming a plurality of STI trenches; for the FET, implanting a first cell well having a first polarity between a first and a second of the STI trenches; for the capacitor, implanting a second cell well having a second polarity in an area of a third of the STI trenches; removing dielectric material from the third STI trench; forming a gate stack having a first portion located between the first and the second of the STI trenches and a second portion located over and extending into the third trench; and performing a source/drain implant of the same polarity as the second cell well, thereby forming a FET in the first cell well, and a capacitor in the second cell well. The second polarity may be opposite from the first polarity. An additional implant may reduce ESR in the second cell well.
    • 通过形成多个STI沟槽与FET结合形成浅沟槽电容器; 对于FET,在第一和第二STI沟槽之间注入具有第一极性的第一单元阱; 对于电容器,在第三个STI沟槽的区域中注入具有第二极性的第二单元阱; 从第三STI沟槽去除电介质材料; 形成具有位于所述STI沟槽的所述第一和第二STI沟槽之间的第一部分和位于所述第三沟槽中并延伸到所述第三沟槽中的第二部分的栅极堆叠; 并且执行与第二单元阱相同极性的源极/漏极注入,从而在第一单元阱中形成FET,以及在第二单元阱中形成电容器。 第二极性可以与第一极性相反。 额外的植入物可以减少第二细胞中的ESR。
    • 5. 发明申请
    • HIGH CAPACITANCE TRENCH CAPACITOR
    • 高电容式电容器
    • US20120061798A1
    • 2012-03-15
    • US12881481
    • 2010-09-14
    • Keich Kwong Hon WongRamachandra DivakaruniRoger A. Booth, JR.
    • Keich Kwong Hon WongRamachandra DivakaruniRoger A. Booth, JR.
    • H01L29/92H01L21/02
    • H01L28/40H01L27/10861H01L27/10867H01L29/945
    • A dual node dielectric trench capacitor includes a stack of layers formed in a trench. The stack of layers include, from bottom to top, a first conductive layer, a first node dielectric layer, a second conductive layer, a second node dielectric layer, and a third conductive layer. The dual node dielectric trench capacitor includes two back-to-back capacitors, which include a first capacitor and a second capacitor. The first capacitor includes the first conductive layer, the first node dielectric layer, the second conductive layer, and the second capacitor includes the second conductive layer, the second node dielectric layer, and the third conductive layer. The dual node dielectric trench capacitor can provide about twice the capacitance of a trench capacitor employing a single node dielectric layer having a comparable composition and thickness as the first and second node dielectric layers.
    • 双节点介质沟槽电容器包括在沟槽中形成的一叠层。 层的堆叠包括从底部到顶部的第一导电层,第一节点电介质层,第二导电层,第二节点电介质层和第三导电层。 双节点介电沟槽电容器包括两个背对背电容器,其包括第一电容器和第二电容器。 第一电容器包括第一导电层,第一节点电介质层,第二导电层,第二电容器包括第二导电层,第二节点电介质层和第三导电层。 双节点介质沟槽电容器可以提供使用具有与第一和第二节点电介质层相当的组成和厚度的单节点电介质层的沟槽电容器的大约两倍的电容。