Method of degrading plastic and process for producing useful substance using the same
    1.
    发明申请
    Method of degrading plastic and process for producing useful substance using the same 审中-公开
    降解塑料的方法和使用其制造有用物质的方法

    公开(公告)号:US20060106120A1

    公开(公告)日:2006-05-18

    申请号:US10532423

    申请日:2003-09-17

    IPC分类号: C08J11/04

    摘要: A method of degrading a plastic in the presence of a biosurfactant; a method of degrading a plastic by contacting the plastic with a microorganism; a process for producing a useful substance from a plastic which comprises degrading the plastic by contacting the plastic with a microorganism and further converting the components of the thus degraded plastic with the use of a microorganism; a method of degrading a plastic by contacting the plastic with a microorganism in the coexistence of a biosurfactant and/or a plastic-degrading enzyme and thus degrading the plastic under the action of the microorganism; a transformant microorganism having been recombined with at least one DNA selected from among a DNA containing a gene encoding a surface active substance, a DNA containing a gene encoding a plastic-degrading enzyme and a DNA containing a gene encoding a useful substance; novel genes as described above; and proteins encoded thereby.

    摘要翻译: 在生物表面活性剂存在下降解塑料的方法; 通过使塑料与微生物接触来降解塑料的方法; 一种从塑料制造有用物质的方法,包括通过使塑料与微生物接触来降解塑料,并且通过使用微生物进一步转化由此降解的塑料的组分; 通过在生物表面活性剂和/或塑性降解酶的共存下使塑料与微生物接触从而在微生物的作用下降解塑料来降解塑料的方法; 已经与选自包含编码表面活性物质的DNA的DNA,含有编码塑性降解酶的基因的DNA和含有编码有用物质的基因的DNA重组的转化体微生物; 如上所述的新基因; 和由此编码的蛋白质。

    Apparatus for polishing wafers
    2.
    发明授权
    Apparatus for polishing wafers 失效
    抛光晶圆的设备

    公开(公告)号:US5860853A

    公开(公告)日:1999-01-19

    申请号:US769441

    申请日:1996-12-19

    CPC分类号: B24B37/107 B24B37/30

    摘要: An apparatus for polishing wafers comprising a turn table with a polishing pad fixedly extended thereon, at least one polishing head positioned above a point on the turn table spaced by a distance from its center, a plate mounted on a lower surface of the at least one polishing head, and a carrier, which is used for retaining the wafers, mounted on the plate in a manner such that the carrier is freely rotatable relative to the plate, wherein a backing pad which is used to press the wafers is fixed on the plate and the wafers are rotated around their respective centers, while being revolved around the center of the plate. According to the apparatus, polished wafers with an excellent flatness are obtained in a reliable manner.

    摘要翻译: 一种用于抛光晶片的装置,包括具有固定地延伸在其上的抛光垫的转台,至少一个抛光头,其位于与其中心间隔一定距离的转台上的点上方,安装在至少一个的下表面上的板 抛光头和用于保持晶片的载体,其以相对于板自由旋转的方式安装在板上,其中用于将晶片推压的背衬垫固定在板上 并且晶片绕其各自的中心旋转,同时围绕板的中心旋转。 根据该设备,以可靠的方式获得具有优异平坦度的抛光晶片。

    Method and apparatus for wafer chamfer polishing
    3.
    发明授权
    Method and apparatus for wafer chamfer polishing 失效
    晶圆倒角抛光方法及装置

    公开(公告)号:US5547415A

    公开(公告)日:1996-08-20

    申请号:US72741

    申请日:1993-06-07

    摘要: A method and apparatus for polishing chamfers made along the periphery; of a semiconductor wafer designed such that when the wafer is once picked up by a rotatory suction cup of a transportation robot, arm, the wafer is not released from the suction cup until the entire polishing operation is completed; in an embodiment, a circular turn table having six wafer suction cups is employed which is adapted to turn step-wise, each step consisting of a turn through an angle of 60.degree. to transfer the wafers.

    摘要翻译: 一种沿周边抛光倒角的方法和装置; 半导体晶片被设计成使得当晶片被传送机器人臂的旋转吸盘拾取时,晶片不会从吸盘释放直到整个抛光操作完成; 在一个实施例中,使用具有六个晶片吸盘的圆形转台,其适于逐步转动,每个步骤包括60°的转角,以转移晶片。

    Apparatus for polishing peripheral portion of wafer
    5.
    发明授权
    Apparatus for polishing peripheral portion of wafer 失效
    用于抛光晶片周边部分的装置

    公开(公告)号:US5928066A

    公开(公告)日:1999-07-27

    申请号:US993989

    申请日:1997-12-18

    IPC分类号: B24B9/06 B24D9/06 B24B5/00

    CPC分类号: B24D9/06 B24B9/065

    摘要: A polishing apparatus of a peripheral chamfered portion of a semiconductor wafer is disclosed. The polishing apparatus comprises: a rotary drum around the periphery of which a tape having an abrasive layer thereon is wound; a first motor for rotating the rotary drum; a wafer holding mechanism which comprises a wafer holding member for holding a wafer, a second motor for rotating the wafer holding member, a supporting member for supporting the wafer holding member and the second motor, and a wafer inclining member for changing the tilt angle of the wafer with respect to the rotary drum by reciprocally rotating the supporting member on a first axis which is substantially parallel with the main surface of the wafer; and a moving member for bringing the wafer held on the supporting member into contact with or separating it from the tape wound around the rotary drum.

    摘要翻译: 公开了半导体晶片的外围倒角部分的抛光装置。 抛光装置包括:围绕其周边的旋转鼓,其上缠绕有其上的研磨层的带; 用于旋转所述旋转滚筒的第一马达; 晶片保持机构,其包括用于保持晶片的晶片保持部件,用于旋转晶片保持部件的第二电动机,用于支撑晶片保持部件和第二电动机的支撑部件,以及用于改变晶片保持部件的倾斜角度的晶片倾斜部件 所述晶片相对于所述旋转鼓通过使所述支撑构件在基本上平行于所述晶片的主表面的第一轴线上往复旋转; 以及移动构件,用于使保持在支撑构件上的晶片与缠绕在旋转鼓上的带接触或分离。

    Apparatus for polishing the notch of a wafer
    6.
    发明授权
    Apparatus for polishing the notch of a wafer 失效
    用于抛光晶片凹口的装置

    公开(公告)号:US5733181A

    公开(公告)日:1998-03-31

    申请号:US329952

    申请日:1994-10-27

    CPC分类号: B24B21/002 B24B9/065

    摘要: An apparatus for polishing the notch of a wafer in an effective and efficient way, which comprises: a flexible tape carrying abrasive grains in the working face thereof; an infeed reel for feeding the tape stored thereon: a take-up reel for taking up the tape fed from the infeed reel; a motor for driving to rotate the take-up reel; a means for blowing a fluid to the backside surface to the edge portion of the notch to be in direct contact along the full periphery of the notch; and a means for oscillating the tape sideways.

    摘要翻译: 一种用于以有效和有效的方式抛光晶片的凹口的装置,其包括:在其工作面中承载磨料颗粒的柔性带; 用于馈送存储在其上的带的进给卷轴;卷取卷轴,用于卷取从进料卷轴进给的带; 用于驱动旋转卷取卷轴的马达; 用于将流体吹送到所述凹口的所述边缘部分的所述后侧表面沿着所述凹口的整个周边直接接触的装置; 以及用于横向摆动带的装置。

    Apparatus for polishing the periphery portion of a wafer
    7.
    发明授权
    Apparatus for polishing the periphery portion of a wafer 失效
    用于抛光晶圆周边部分的装置

    公开(公告)号:US5476413A

    公开(公告)日:1995-12-19

    申请号:US306439

    申请日:1994-09-19

    摘要: An apparatus for polishing the periphery portion of a wafer, by which improvement on the polishing velocity may be effected and besides a more efficient spatial usage of the working layer of an abrasive tape is capable, comprising a tape holding fixed abrasive grains thereon; a feed reel for feeding the tape stored by winding itself; a take-up reel for taking up the tape by winding itself; a rotary drum inside of which both of the reels are equipped in such a manner that they are mountable or demountable, where a portion of the tape in the way from the feed reel to the take-up reel is adaptive to wind the rotary drum around the outer cylindrical surface thereof in close contact in the shape of a helicoid and one of the main faces of the wafer is positioned to be in a plane intersecting the central axis of the rotary drum at an angle.

    摘要翻译: 抛光晶片周边部分的装置可以进行研磨速度的改善,并且除了可以更有效地利用砂带工作层的空间使用之外,还包括在其上保持固定磨粒的带; 用于馈送通过缠​​绕自身而存储的带的馈送卷轴; 用于卷绕磁带的卷取卷轴; 其中两个卷盘的两个卷轴被安装成可安装或拆卸的旋转滚筒,其中从进给卷轴到卷取卷轴的带的一部分适于卷绕旋转滚筒 其圆柱形表面紧密接触螺旋形状并且晶片的主面之一被定位成与旋转鼓的中心轴线成一定角度的平面。

    Method and apparatus for wafer chamfer polishing
    9.
    发明授权
    Method and apparatus for wafer chamfer polishing 失效
    晶圆倒角抛光方法及装置

    公开(公告)号:US06234879B1

    公开(公告)日:2001-05-22

    申请号:US08619882

    申请日:1996-03-20

    IPC分类号: B24B900

    摘要: A method and apparatus for polishing chamfers made along the periphery of a semiconductor wafer designed such that when the wafer is once picked up by a rotatory suction cup of a transportation robot arm, the wafer is not released from the suction cup until the entire polishing operation is completed; in an embodiment, a circular turn table having six wafer suction cups is employed which is adapted to turn step-wise, each step consisting of a turn through an angle of 60° to transfer the wafers.

    摘要翻译: 一种用于抛光沿半导体晶片的周边形成的倒角的方法和装置,其设计成使得当晶片被传送机器人臂的旋转吸盘一次拾取时,晶片不会从吸盘释放直到整个抛光操作 完成了; 在一个实施例中,使用具有六个晶片吸盘的圆形转台,其适于逐步转动,每个步骤包括60°的转角以转移晶片。

    Method of and apparatus for mirror-like polishing wafer chamfer with
orientation flat
    10.
    发明授权
    Method of and apparatus for mirror-like polishing wafer chamfer with orientation flat 失效
    具有取向平面的镜面抛光晶圆倒角的方法和装置

    公开(公告)号:US6113463A

    公开(公告)日:2000-09-05

    申请号:US623771

    申请日:1996-03-29

    CPC分类号: B24B49/12 B24B49/02 B24B9/065

    摘要: A method for chamfer mirror-like polishing a wafer having an orientation flat by rotating the wafer in a state of being pressed by a rotating buffering wheel with a predetermined pressure, is disclosed. Mirror-surface polishing a stable wafer chamfer can be obtained with a relatively simple control system. The invention is predicated in the fact that the wafer rotation speed N.sub.s has low inertial mass and low rotation speed so that the wafer rotation speed control can be obtained with high response property and high accuracy compared to pressing pressure control and buffering wheel control, and it features detecting intrinsic peripheral part, corners and orientation flat part of wafer according to a detection signal of detection means for detecting the wafer mirror-like polishing position and controlling the wafer rotation speed N.sub.s according to the detected wafer mirror-like polishing position.

    摘要翻译: 公开了一种通过在被预定压力的旋转缓冲轮按压的状态下旋转晶片而具有取向平坦的晶片的倒角镜状抛光方法。 用相对简单的控制系统可以获得镜面抛光稳定的晶圆倒角。 本发明的前提是,晶片旋转速度Ns具有低惯性质量和低转速,因此与按压压力控制和缓冲轮控制相比,可以获得具有高响应特性和高精度的晶片转速控制,并且 根据检测晶片反射镜抛光位置的检测装置的检测信号,根据检测到的晶片反射镜抛光位置来控制晶片转速Ns,检测晶片的固有外围部分,拐角和定向平面部分。