Environmental scanning electron microscope
    1.
    发明授权
    Environmental scanning electron microscope 失效
    环境扫描电子显微镜

    公开(公告)号:US5362964A

    公开(公告)日:1994-11-08

    申请号:US100545

    申请日:1993-07-30

    Abstract: An environmental scanning electron microscope which achieves image resolution comparable to that of a conventional SEM. A biased ring electrode which detects secondary electron signals emanating from the surface of the specimen is provided in the specimen chamber. A biased pressure limiting aperture electron detector is also provided to reduce signals emanating from backscattered electrons and to reduce signal noise generated by the electron beam. This environmental SEM also optimizes the signal amplification of the secondary electrons following detection thereof, such that the detector noise is reduced below the noise in the signal itself, while still maintaining an overall bandwidth that is suitable for setting up the image. An optical window system is also provided in this environmental SEM which allows the user to easily switch between the normal environmental SEM electron image (limited to 0.5 mm in diameter) to an optical light view of the sample that covers a field-of-view of up to about 7 to 10 mm. Moreover, the construction of this environmental SEM provides for a take-off angle for the X-ray detectors (EDX detectors) which is comparable to the take-off angle in for an EDX detector in a conventional SEM. Additionally, the arrangement of the scanning coils and magnetic focusing lens in this environmental SEM provides for an enhanced field-of-view of the specimen.

    Abstract translation: 一种环境扫描电子显微镜,其实现了与常规SEM相当的图像分辨率。 在试样室中设置有偏置的环状电极,其检测从试样的表面发出的二次电子信号。 还提供了偏压的压力限制孔径电子检测器来减少从后向散射电子发出的信号并减少由电子束产生的信号噪声。 该环境SEM还优化其二次电子在其检测之后的信号放大,使得检测器噪声降低到低于信号本身的噪声,同时仍保持适合于建立图像的总体带宽。 在该环境SEM中还提供了光学窗口系统,其允许用户容易地将正常的环境SEM电子图像(限于直径为0.5mm)与覆盖视场的视场的光学视图 高达约7至10毫米。 此外,这种环境扫描电镜的结构为X射线探测器(EDX探测器)提供了一个起飞角度,它与常规扫描电镜中的EDX探测器的起飞角度相当。 此外,在该环境SEM中扫描线圈和磁聚焦透镜的布置提供了样本的增强的视场。

    Bicycle brake with force modifying means
    2.
    发明授权
    Bicycle brake with force modifying means 失效
    具有力修改装置的自行车制动器

    公开(公告)号:US4015690A

    公开(公告)日:1977-04-05

    申请号:US625534

    申请日:1975-10-24

    CPC classification number: B62L1/16

    Abstract: The calipers of a brake assembly are sequentially displaced into engagement with the wheel rim of a bicycle at low and high leverage ratios respectively by a force applied through an actuating cable device. A preload spring force resisting displacement of the high leverage caliper is reduced by buckling of a toggle device when the actuating cable begins displacement of the caliper at the high leverage ratio.

    Abstract translation: 制动组件的卡钳分别以低和高的杠杆比率通过施加在致动缆索装置上的力而相对于自行车的轮缘接合。 当致动缆线以高杠杆比开始移动卡尺时,抵抗高杠杆钳的位移的预加载弹簧力减小了肘节装置的屈曲。

    Ion implanter target chamber
    3.
    发明授权
    Ion implanter target chamber 失效
    离子注入机靶室

    公开(公告)号:US4672210A

    公开(公告)日:1987-06-09

    申请号:US772237

    申请日:1985-09-03

    CPC classification number: H01L21/67011 H01J37/3171

    Abstract: A target chamber for a mechanically scanned ion implanter in which semiconductor wafers are maintained in contact with a rotating target disk entirely by body forces, thus eliminating the need for clamping members contacting the wafer surface. The axis of the disk is inclined, and the disk is in the form of a shallow dish having an inclined rim with cooled wafer-receiving stations formed on the inner surface of the rim. Centrifugal force is relied on to force the wafers against the cooled disk. Each wafer-receiving station includes fence structures which are engaged by the wafer during loading and when the disk is spinning. The fence structures are resilient so that wafer damage and thus particulate contamination is minimized. In accordance with another aspect of the invention the ion beam is projected against the wafers obliquely to the radius of the disk as to minimize striping effects and overscan.

    Abstract translation: 用于机械扫描离子注入机的目标室,其中半导体晶片通过体力保持与旋转目标盘保持接触,从而消除了与晶片表面接触的夹紧构件的需要。 盘的轴线倾斜,并且盘是具有倾斜边缘的浅盘的形式,其中冷却的晶片接收站形成在边缘的内表面上。 依靠离心力将晶片压在冷却盘上。 每个晶片接收站包括在加载期间和当盘旋转时由晶片接合的栅栏结构。 栅栏结构具有弹性,使得晶片损坏和因此的颗粒污染被最小化。 根据本发明的另一方面,离子束相对于盘的半径倾斜地抵靠晶片,以最小化条纹效应和过扫描。

    Variable-leverage brakes for bicycles
    4.
    发明授权
    Variable-leverage brakes for bicycles 失效
    用于自行车的可变式杠杆制动器

    公开(公告)号:US4014408A

    公开(公告)日:1977-03-29

    申请号:US602668

    申请日:1975-08-07

    CPC classification number: B62L1/16

    Abstract: Multi-stage engagement of a bicycle wheel rim is effected by force simultaneously applied to a slidable caliper and a pivoted caliper causing sequential displacement of the calipers. Displacement of the slidable caliper at a low leverage ratio is terminated by a locking action in response to initial brake contact to cause subsequent pivotal displacement of the pivoted caliper at a high leverage ratio for increased braking contact with the wheel rim.

    Abstract translation: 自行车车轮轮缘的多级接合通过同时施加到可滑动的卡钳和枢转的卡钳的力来实现,从而导致卡钳的顺序移位。 通过响应于初始制动器接触的锁定动作来终止可滑动卡钳在低杠杆比下的位移,以引起枢轴式卡钳随后在高杠杆比下的枢转位移,以增加与轮缘的制动接触。

    Adhesion cooling for an ion implantation system
    5.
    发明授权
    Adhesion cooling for an ion implantation system 失效
    离子注入系统的粘附冷却

    公开(公告)号:US4724325A

    公开(公告)日:1988-02-09

    申请号:US855191

    申请日:1986-04-23

    CPC classification number: H01L21/67103 H01J37/20

    Abstract: An ion beam treatment system for treating silicon wafers placed in the ion beam path. A rotatably mounted wafer pedestal has a plurality of wafer supporting substrates spaced about the pedestal. The substrates are constructed from an elastomer that is chosen for its ability to transfer heat generated by ion collision with the wafers away from the wafers. Each wafer substrate defines a series of elongated depressions across its surface. Certain of these depressions are connected to a pressure source at a wafer loading/unloading station to help acquire the wafers during loading and to facilitate removal of the wafers during unloading. Other depressions vent the interface between the wafers and the substrate to atmosphere to avoid undue pressure build-up on the wafers as they lift off the substrate.

    Abstract translation: 一种用于处理放置在离子束路径中的硅晶片的离子束处理系统。 可旋转地安装的晶片基座具有围绕基座间隔开的多个晶片支撑基板。 衬底由弹性体构成,该弹性体被选择用于将离子碰撞产生的热量与晶片远离晶片转移的能力。 每个晶片衬底在其表面上限定一系列细长的凹陷。 这些凹陷中的某些连接到晶片装载/卸载站处的压力源,以在加载期间帮助获取晶片,并且有助于在卸载期间移除晶片。 其他凹陷将晶片和基板之间的界面排出到大气中,以避免在晶片剥离基板时晶片上过度的压力积聚。

    Bicycle shift mechanism
    6.
    发明授权
    Bicycle shift mechanism 失效
    自行车换档机构

    公开(公告)号:US3972247A

    公开(公告)日:1976-08-03

    申请号:US508042

    申请日:1974-09-23

    Abstract: A control mechanism adapted for incrementally and positively controlling the displacement of a biassed member or the like associated with a bicycle gear-change transmission between a plurality of predetermined positions for effectuating changes in gear ratios of such transmission in response to unidirectional movement of an operator control lever of the control mechanism. In addition, the control mechanism is also, preferably, provided with an "overshift" arrangement which effectively and effortlessly enables an operator to shift the bicycle sprocket chain from one sprocket to another sprocket of larger diameter. In an alternate embodiment, the control mechanism is directly mounted on and connected to a derailleur type bicycle change-gear mechanism.

    Abstract translation: 一种控制机构,其适于逐渐地和积极地控制与多个预定位置之间的自行车变速传动装置相关联的偏压构件等的位移,以响应于操作者控制器的单向移动而实现这种变速器的变速比的变化 控制机构的杠杆。 此外,控制机构还优选地设置有“过冲”装置,其有效且毫不费力地使操作者能够将自行车链轮链从一个链轮移动到另一个较大直径的链轮。 在替代实施例中,控制机构直接安装在拨链器式自行车变速机构上并与之连接。

    Scroll-type fluid displacement apparatus with peripheral drive
    7.
    发明授权
    Scroll-type fluid displacement apparatus with peripheral drive 失效
    带外围驱动的涡旋式流体置换设备

    公开(公告)号:US4192152A

    公开(公告)日:1980-03-11

    申请号:US896161

    申请日:1978-04-14

    CPC classification number: F01C1/0238 F02G2250/03 F25B1/04 F25B2400/14

    Abstract: Peripherally-driven scroll apparatus. The orbiting scroll member is attached through radially-compliant linking means to eccentrics mounted on three equally spaced crankshafts to accommodate differential thermal expansion without the generation of any appreciable elastic forces to increase bearing loads. Means are provided to prevent axial deflections in the stationary scroll members while permitting their supports to be designed and constructed for strength rather than stiffness. The apparatus may be staged and employed as a compressor or expander.

    Abstract translation: 外围驱动的滚动装置。 绕动涡旋件通过径向顺应的连接装置附接到安装在三个等间隔的曲轴上的偏心件,以适应不同的热膨胀,而不产生任何明显的弹性力以增加轴承负载。 提供装置以防止固定涡旋构件中的轴向偏转,同时允许其支撑件被设计和构造用于强度而不是刚度。 该装置可以分段并用作压缩机或膨胀机。

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