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    • 34. 发明授权
    • Method for polishing a wafer
    • 抛光晶圆的方法
    • US5645736A
    • 1997-07-08
    • US580674
    • 1995-12-29
    • Derryl D. J. Allman
    • Derryl D. J. Allman
    • H01L21/304B24B37/04C09G1/02H01L21/3105C09G1/00B24B1/00
    • H01L21/31053B24B37/044C09G1/02
    • A method is shown for polishing a workpiece such as a semiconductor wafer. A polishing composition is first formed which includes (1) a polishing media particle; and (2) a film forming binder for suspending the particle and forming a temporary film on an exposed surface of the workpiece, the temporary film being dissolvable in a subsequently applied polishing wash, whereby the polishing media particle is freed to polish the workpiece. The polishing composition is applied to the surface of the semiconductor wafer in a spin coating operation and thereafter cured in a hot plate bake or a furnace operation. In order to polish the workpiece, a polishing wash is applied to either or both of the surface of the workpiece or a polishing pad and thereafter causing the pad to be sufficiently proximate to the surface of the workpiece at a pressure and for a time sufficient to polish and planarize the workpiece.
    • 示出了用于抛光诸如半导体晶片的工件的方法。 首先形成抛光组合物,其包括(1)抛光介质颗粒; 和(2)用于使颗粒悬浮并在工件的暴露表面上形成临时膜的成膜粘合剂,临时膜可以在随后施加的抛光洗涤中溶解,由此抛光介质颗粒被释放以抛光工件。 抛光组合物在旋转涂布操作中施加到半导体晶片的表面,然后在热板烘烤或炉操作中固化。 为了抛光工件,抛光洗涤被施加到工件的表面或抛光垫的任何一个或两者上,然后在足够的压力下将焊盘充分靠近工件的表面,并且持续足够的时间 抛光并平坦化工件。
    • 37. 发明授权
    • Method of forming a metal-insulator-metal capacitor in an interconnect cavity
    • 在互连腔中形成金属 - 绝缘体 - 金属电容器的方法
    • US07118985B2
    • 2006-10-10
    • US10260824
    • 2002-09-27
    • Derryl D. J. AllmanKenneth Fuchs
    • Derryl D. J. AllmanKenneth Fuchs
    • H01L21/768H01L21/8242
    • H01L28/40H01L21/768H01L28/75
    • A metal-insulator-metal capacitor is embedded in an interconnect layer of an integrated circuit (IC). The interconnect layer has a cavity, and the capacitor is formed in the cavity with one of the plates of the capacitor integral with a conductive layer of the interconnect layer, so the capacitor plate electrically communicates with the interconnect layer. The interconnect layer has multiple conductive layers, including a layer, such as aluminum, that is subject to deformation at certain temperatures during fabrication of the IC, and the cavity extends through this layer. A remaining conductive layer of the interconnect layer defines one of the capacitor plates, and a dielectric layer and another capacitor plate are formed thereon within the cavity. Via interconnects of about the same length electrically connect to the top plate and through the interconnect layer to the bottom plate.
    • 金属 - 绝缘体 - 金属电容器嵌入在集成电路(IC)的互连层中。 互连层具有空腔,并且电容器形成在空腔中,电容器的一个板与互连层的导电层成一体,因此电容器板与互连层电连通。 互连层具有多个导电层,包括在制造IC期间在特定温度下经受变形的诸如铝的层,并且空腔延伸穿过该层。 互连层的剩余导电层限定电容器板中的一个,并且在腔内形成介电层和另一电容器板。 通过大致相同长度的互连电连接到顶板并且通过互连层连接到底板。
    • 39. 发明授权
    • Local interconnect
    • 本地互连
    • US06576544B1
    • 2003-06-10
    • US09966464
    • 2001-09-28
    • Derryl D. J. AllmanJames R. HightowerPhonesavanh Saopraseuth
    • Derryl D. J. AllmanJames R. HightowerPhonesavanh Saopraseuth
    • H01L214763
    • H01L21/76895
    • A method for forming the electrical interconnect levels and circuit elements of an integrated circuit is provided by the present invention. The method utilizes a relatively thin layer of conductive material having a higher resistance than the metal typically used to form electrical interconnections, such as titanium nitride, to provide relatively short local interconnections between circuit elements of the integrated circuit. In addition, this same thin layer of conductive material is used to form macro elements such as capacitors, resistors, and fuses in the integrated circuit. By allowing the removal of space consuming transverse electrical interconnect lines from the interconnect levels, the present invention increases the routing density of the electrical interconnect levels. Furthermore, by allowing these local electrical interconnections to be produced during the same manufacturing step as the macro elements of the integrated circuit, the method of the present invention tends to reduce the number of steps required to produce an integrated circuit.
    • 本发明提供一种用于形成集成电路的电互连电平和电路元件的方法。 该方法利用比通常用于形成诸如氮化钛的电互连的金属具有更高电阻的相对薄的导电材料层,以在集成电路的电路元件之间提供相对较短的局部互连。 此外,这种相同的薄导电材料用于在集成电路中形成诸如电容器,电阻器和熔丝的宏观元件。 通过允许从互连级别去除耗费空间的横向电互连线,本发明增加了电互连级别的布线密度。 此外,通过在与集成电路的宏观元件相同的制造步骤中产生这些局部电互连,本发明的方法倾向于减少制造集成电路所需的步骤数量。