Direct-write afocal electron-beam semiconductor lithography
    3.
    发明授权
    Direct-write afocal electron-beam semiconductor lithography 失效
    直写无电子束半导体光刻技术

    公开(公告)号:US5478698A

    公开(公告)日:1995-12-26

    申请号:US105261

    申请日:1993-08-12

    IPC分类号: H01J37/317 G03F7/20 H01J37/30

    摘要: A technique is describe for effecting very-high resolution semiconductor lithography using direct-write afocal electron-beam exposure of a sensitized wafer. A positioning mechanism and needle-like probe similar to those used in scanning-tunneling microscopy are used in conjunction with a controllable electron field emission source to produce a near-field electron beam capable of exposing an electron-beam sensitive resist on a wafer surface. Conventional e-beam resists are used. The technique can be used in conjunction with scanning-tunneling-like operation of the apparatus to record the appearance and nature of the wafer surface, thereby providing information about the location of underlying features. This location information can be used to assist in aligning the exposure patterns to existing structures in the semiconductor wafer. A multi-probe embodiment with separately controllable field emission sources provides for improved productivity by permitting contemporaneous exposure of multiple sites on a single wafer.

    摘要翻译: 描述了一种技术,用于使用致敏晶片的直接写入无电子束曝光来实现非常高分辨率的半导体光刻。 与扫描隧道显微镜中使用的类似的定位机构和针状探针与可控电子场发射源结合使用以产生能够在晶片表面上暴露电子束敏感抗蚀剂的近场电子束。 使用常规电子束抗蚀剂。 该技术可以与装置的扫描隧道式操作一起使用,以记录晶片表面的外观和性质,从而提供关于底层特征的位置的信息。 该位置信息可用于帮助将曝光图案对准半导体晶片中的现有结构。 具有单独可控的场致发射源的多探针实施例通过允许在单个晶片上同时曝光多个位置来提供提高的生产率。

    Interior bond pad arrangements for alleviating thermal stresses
    5.
    发明授权
    Interior bond pad arrangements for alleviating thermal stresses 失效
    用于减轻热应力的内部粘结垫布置

    公开(公告)号:US5453583A

    公开(公告)日:1995-09-26

    申请号:US58117

    申请日:1993-05-05

    IPC分类号: H01L23/485 H05K1/00

    摘要: A technique for reducing thermally-induced mechanical stresses on bond pads in semiconductor device assemblies is accomplished by grouping the bond pads into a relatively small (compared to the total area of the die) sub-area within an interior area (generally away from the periphery) of the die. By keeping the bond pad layout small (tightly grouped, or oriented along a single row, or axis), differential thermally induced displacements between the bond pads are minimized, or are controlled in one dimension. Further, the bond pads may be disposed in a small area near the center of thermal expansion (centroid) of the die or near a heat-producing circuit element to minimize absolute thermal displacements of individual bond pads from the centroid or the circuit element. Overlapping sub-area patterns may be used, and grouped bond pads may be used in conjunction with (including overlapping of) traditional die-periphery located bond pads. Other aspects involve disposing the bond pads into an elongated pattern to minimize thermal displacement primarily in one direction, and orienting a lead frame or the like to accommodate any thermal migration of the bond pads in a controlled direction.

    摘要翻译: 减小半导体器件组件中的接合焊盘上的热诱导机械应力的技术是通过将接合焊盘分组成内部区域(通常远离外围部分)相对较小(与模具的总面积相比)的子区域 )的死亡。 通过保持接合焊盘布局小(紧密组合,或沿着单个行或轴定向),接合焊盘之间的差异热诱导位移被最小化,或者被控制在一个维度上。 此外,接合焊盘可以设置在靠近管芯的热膨胀(中心)的中心附近的小区域中,或靠近发热电路元件,以最小化单个接合焊盘与质心或电路元件的绝对热位移。 可以使用重叠的子区域图案,并且分组的接合焊盘可以与传统的芯片周边定位的焊盘结合使用(包括重叠)。 其他方面涉及将接合焊盘设置成细长图案以最小化主要在一个方向上的热位移,并且定向引线框架等以适应接合焊盘在受控方向上的任何热迁移。

    Process for forming low dielectric constant layers using fullerenes
    6.
    发明授权
    Process for forming low dielectric constant layers using fullerenes 失效
    使用富勒烯形成低介电常数层的方法

    公开(公告)号:US5744399A

    公开(公告)日:1998-04-28

    申请号:US557721

    申请日:1995-11-13

    IPC分类号: H01L21/316 H01L21/768

    摘要: A process for lowering the dielectric constant of a layer on a semiconductor wafer is described. The presence of the fullerene in the composite layer changes its dielectric constant. The process forms, on the wafer, a composite layer comprising matrix-forming material and a fullerene. The fullerene may be removed from the composite layer to leave an open porous layer. Removing the fullerene may be accomplished, for example, by contacting the composite layer with a liquid which is a solvent for the fullerene but not for the insulation material or by oxidizing the fullerene. The processes and insulation layers described are particularly useful for integrated circuits.

    摘要翻译: 描述了用于降低半导体晶片上的层的介电常数的方法。 复合层中富勒烯的存在会改变其介电常数。 该方法在晶片上形成包含基质形成材料和富勒烯的复合层。 可以从复合层中除去富勒烯以留下开放的多孔层。 除去富勒烯可以例如通过使复合层与作为富勒烯的溶剂而不是绝缘材料的液体或通过氧化富勒烯而接触来实现。 所描述的工艺和绝缘层对集成电路特别有用。

    System having input-output drive reduction
    7.
    发明授权
    System having input-output drive reduction 失效
    具有输入输出驱动减少的系统

    公开(公告)号:US5696403A

    公开(公告)日:1997-12-09

    申请号:US626468

    申请日:1996-04-02

    IPC分类号: H01L23/522 H01L23/552

    摘要: An electronic system utilizing at least one integrated circuit that has reduced drive requirements for the input and output pads of the integrated circuit die. The integrated circuit of the system has an intermediate structure added between the output connection pad and substrate to reduce the amount of electron charge required to charge the output pad capacitance of the integrated circuit to a substantially negligible amount. In addition, an intermediate structure may be added between an input connection pad and substrate of the integrated circuit to reduce the amount of electron charge required to charge the input pad capacitance to a substantially negligible amount. In the present invention, a transistor amplifier driver is connected to the intermediate structure between the output pad and substrate to charge the capacitance that exists between the intermediate structure and substrate so that the voltage potential of the intermediate structure is substantially the same value as the output pad voltage value. In similar fashion, a transistor amplifier driver is connected to the intermediate structure between the input pad and substrate to charge the capacitance that exists between the intermediate structure and substrate so that the voltage potential of the intermediate structure is substantially the same value as the input pad voltage value.

    摘要翻译: 一种使用至少一个集成电路的电子系统,该集成电路降低了对集成电路管芯的输入和输出焊盘的驱动要求。 该系统的集成电路具有添加在输出连接焊盘和衬底之间的中间结构,以减少将集成电路的输出焊盘电容充电至基本可忽略的量所需的电子电荷量。 此外,可以在输入连接焊盘和集成电路的基板之间添加中间结构,以减少将输入焊盘电容充电至基本可忽略的量所需的电子电荷量。 在本发明中,晶体管放大器驱动器连接到输出焊盘和衬底之间的中间结构,以对存在于中间结构和衬底之间的电容进行充电,使得中间结构的电压电位基本上与输出的值相同 焊盘电压值。 以类似的方式,晶体管放大器驱动器连接到输入焊盘和衬底之间的中间结构,以对存在于中间结构和衬底之间的电容进行充电,使得中间结构的电压电位与输入焊盘基本相同 电压值。

    Automating photolithography in the fabrication of integrated circuits
    8.
    发明授权
    Automating photolithography in the fabrication of integrated circuits 失效
    在制造集成电路时自动化光刻

    公开(公告)号:US5663076A

    公开(公告)日:1997-09-02

    申请号:US512678

    申请日:1995-08-08

    IPC分类号: G03F7/20 H01L21/66

    摘要: Automated photolithography of integrated circuit wafers is enabled with a processor connected to a Rayleigh derator, a form factor generator, a logic synthesizer, a layout generator, a lithography module and a wafer process. The Rayleigh derator receives manufacturing information resulting from yield data in the wafer process, and this manufacturing data is then used to derate the theoretical minimum feature size available for etching wafer masks given a known light source and object lens numerical aperture. This minimum feature size is then used by a form factor generator in sizing transistors in a net list to their smallest manufacturable size. A logic synthesizer then converts the net list into a physical design using a layout generator combined with user defined constraints. This physical design is then used by the mask lithography module to generate wafer masks for use in the semiconductor manufacturing. Manufacturing data including process and yield parameters is then transferred back to the Rayleigh processor for use in the designing of subsequent circuits. In this way, a direct coupling exists between the measurement of wafer process parameters and the automated sizing of semiconductor devices, enabling the production of circuits having the smallest manufacturable device sizes available for the given lithography and wafer process.

    摘要翻译: 集成电路晶片的自动光刻可通过连接到瑞利分离器,形状因子发生器,逻辑合成器,布局发生器,光刻模块和晶片工艺的处理器来实现。 Rayleigh变矩器接收由晶片工艺中的屈服数据产生的制造信息,然后使用该制造数据降低可用于蚀刻具有已知光源和物镜数值孔径的晶片掩模的理论最小特征尺寸。 然后,这种最小特征尺寸由形状因子发生器用于将网络列表中的晶体管调整到其最小可制造尺寸。 然后,逻辑合成器将网络列表转换为使用布局生成器与用户定义的约束组合的物理设计。 然后该掩模光刻模块将该物理设计用于半导体制造中使用的晶片掩模。 然后将包括处理和产量参数的制造数据传送回瑞利处理器,以用于后续电路的设计。 以这种方式,在晶片工艺参数的测量和半导体器件的自动化尺寸之间存在直接耦合,使得能够生产具有可用于给定光刻和晶片工艺的最小可制造器件尺寸的电路。

    Techniques for forming superconductive lines
    9.
    发明授权
    Techniques for forming superconductive lines 失效
    形成超导线的技术

    公开(公告)号:US5593918A

    公开(公告)日:1997-01-14

    申请号:US233607

    申请日:1994-04-22

    摘要: Various techniques for forming superconductive lines are described whereby superconductive lines can be formed by stamping, etching, polishing, or by rendering selected areas of a superconductive film (layer) non-superconductive. The superconductive material can be "perfected" (or optimized) after it is formed into lines (traces). In one embodiment, trenches are etched in a substrate, the trenches are filled with superconductive material, and any excess superconductive material overfilling the trenches is removed, such as by polishing. In another embodiment, superconductive lines are formed by rendering selected areas of a superconductive layer (i.e., areas other than the desired superconductive lines) non-superconductive by "damaging" the superconductive material by laser beam heating, or by ion implantation. Superconductive lines formed according to the invention can be used to protect semiconductor devices (e.g., transistor structures) from over-current or overheating conditions such as those caused by CMOS latch-up. Current density limits and/or thermal limits of superconductors are employed to cause a superconductive trace to become non-superconductive when these limits are exceeded.

    摘要翻译: 描述了用于形成超导线的各种技术,其中超导线可以通过冲压,蚀刻,抛光或通过使超导膜(层)非超导的选定区域形成。 超导材料在形成线(迹线)后可以“完善”(或优化)。 在一个实施例中,在衬底中蚀刻沟槽,沟槽用超导材料填充,并且例如通过抛光,去除超过沟槽的任何过量的超导材料。 在另一个实施例中,超导线通过使超导层的选定区域(即,不期望的超导线路以外的区域)通过激光束加热“超导”超导材料或通过离子注入来形成,而不是超导的。 根据本发明形成的超导线可用于保护半导体器件(例如,晶体管结构)免受过度电流或过热条件的影响,例如由CMOS闩锁引起的条件。 采用超导体的电流密度限制和/或热限制,当超过这些限值时,会使超导轨迹变得非超导。

    Gamma ray techniques applicable to semiconductor lithography
    10.
    发明授权
    Gamma ray techniques applicable to semiconductor lithography 失效
    伽玛射线技术适用于半导体光刻技术

    公开(公告)号:US5591564A

    公开(公告)日:1997-01-07

    申请号:US56340

    申请日:1993-04-30

    IPC分类号: G03F7/20 G21K1/04 G21K5/00

    摘要: Fine, sub-micron line features and patterns are created in a sensitized layer on a semiconductor wafer by a beam of Gamma-radiation. A continuous stream of such radiation, such as provided by a pellet of Cobalt-60, is collimated into a fine beam by a tapered collimator, and is gated on and off by a shutter mechanism comprising a distortable-surface device and a beam-blocking device. The fine, collimated beam converts points in a gamma-radiation-sensitive layer on a semiconductor wafer. By moving the wafer relative to the beam (or vice-versa), patterns are created in the layer of radiation-sensitive layer for further processing a layer underlying the radiation-sensitive layer.

    摘要翻译: 通过伽马辐射束在半导体晶片上的增感层中产生细的亚微米线特征和图案。 这种辐射的连续流,例如由Cobalt-60的颗粒提供的,通过锥形准直器准直成细的光束,并且通过包括可变形表面装置和光束阻挡的快门机构进行门控和关闭 设备。 精细的准直光束转换半导体晶片上的伽马辐射敏感层中的点。 通过相对于光束(或反之亦然)移动晶片,在辐射敏感层中产生图案,用于进一步处理辐射敏感层下面的层。