Aerosol generator for EPTFE filter testing and method of use
    1.
    发明授权
    Aerosol generator for EPTFE filter testing and method of use 有权
    气溶胶发生器用于EPTFE过滤器的测试和使用方法

    公开(公告)号:US09266068B2

    公开(公告)日:2016-02-23

    申请号:US13804503

    申请日:2013-03-14

    IPC分类号: B01D65/10 B05B7/24 B01D39/16

    摘要: Systems and methods for generating low or ultra-low concentrations of oil-based challenging compounds for filtration media are provided. Embodiments of the generators utilize bypass air in addition to the source of challenge. A HEPA filter which utilizes spunbond scrim material and ePTFE membrane for use in an aseptic pharmaceutical filtration air handling system for installation and testing is provided. The installation and testing configuration includes the ePTFE filter with a low or ultra-low concentration of challenging aerosol in the upstream side of the filter along with a scanning device for determining the upstream concentration, all completed in situ within a pharmaceutical air handling system. At the downstream side of the ePTFE filter is positioned another scanner which may be a discrete particle counter. The system and configuration allows for exposure to ePTFE filtration media for certification by low or ultra-low concentrations of oil based challenging compounds.

    摘要翻译: 提供了用于产生低或超低浓度的用于过滤介质的基于油的挑战性化合物的系统和方法。 除了挑战源之外,发电机的实施例还利用旁路空气。 提供了一种使用纺粘稀松布材料和ePTFE膜的HEPA过滤器,用于无菌药物过滤空气处理系统的安装和测试。 安装和测试配置包括在过滤器的上游侧具有低或超低浓度的具有挑战性的气溶胶的ePTFE过滤器以及用于确定上游浓度的扫描装置,所有扫描装置全部在药物空气处理系统内原位完成。 在ePTFE过滤器的下游侧设置另一个扫描仪,其可以是离散粒子计数器。 该系统和配置允许暴露于ePTFE过滤介质,以通过低或超低浓度的基于油的具有挑战性的化合物进行认证。

    AEROSOL GENERATOR FOR EPTFE FILTER TESTING AND METHOD OF USE
    2.
    发明申请
    AEROSOL GENERATOR FOR EPTFE FILTER TESTING AND METHOD OF USE 有权
    用于EPTFE过滤器测试的气溶胶发生器及其使用方法

    公开(公告)号:US20130192344A1

    公开(公告)日:2013-08-01

    申请号:US13804503

    申请日:2013-03-14

    IPC分类号: B01D65/10 B05B7/24

    摘要: Systems and methods for generating low or ultra-low concentrations of oil-based challenging compounds for filtration media are provided. Embodiments of the generators utilize bypass air in addition to the source of challenge. A HEPA filter which utilizes spunbond scrim material and ePTFE membrane for use in an aseptic pharmaceutical filtration air handling system for installation and testing is provided. The installation and testing configuration includes the ePTFE filter with a low or ultra-low concentration of challenging aerosol in the upstream side of the filter along with a scanning device for determining the upstream concentration, all completed in situ within a pharmaceutical air handling system. At the downstream side of the ePTFE filter is positioned another scanner which may be a discrete particle counter. The system and configuration allows for exposure to ePTFE filtration media for certification by low or ultra-low concentrations of oil based challenging compounds.

    摘要翻译: 提供了用于产生低或超低浓度的用于过滤介质的基于油的挑战性化合物的系统和方法。 除了挑战源之外,发电机的实施例还利用旁路空气。 提供了一种使用纺粘稀松布材料和ePTFE膜的HEPA过滤器,用于无菌药物过滤空气处理系统的安装和测试。 安装和测试配置包括在过滤器的上游侧具有低或超低浓度的具有挑战性的气溶胶的ePTFE过滤器以及用于确定上游浓度的扫描装置,所有扫描装置全部在药物空气处理系统内原位完成。 在ePTFE过滤器的下游侧设置另一个扫描仪,其可以是离散粒子计数器。 该系统和配置允许暴露于ePTFE过滤介质,以通过低或超低浓度的基于油的具有挑战性的化合物进行认证。

    Method and apparatus for fabricating and connecting a semiconductor power switching device

    公开(公告)号:US20060097362A1

    公开(公告)日:2006-05-11

    申请号:US10975830

    申请日:2004-10-28

    IPC分类号: H01L23/495

    摘要: Fabrication processes for manufacturing and connecting a semiconductor switching device are disclosed, including an embodiment for dicing a wafer into individual circuit die by sawing the interface between adjacent die with a saw blade that has an angled configuration across its width, preferably in a generally V-shape so that the adjacent die are severed from one another while simultaneously providing a beveled surface on the sides of each separated die. Another embodiment relates to the manner in which damage to a beveled side surface of the individual die can be smoothed by a chemical etching process. Another embodiment relates to the manner in which the device can be easily mounted on a printed circuit board by providing conductive lands on the printed circuit board that are coextensive with metallized electrodes on the device and which can be placed on the printed circuit board and soldered in place and a unique lead frame which can be soldered to another electrode metallization on the opposite side of the chip and the printed circuit board in a manner which substantially reduces if not eliminates harmful thermal stress and which assures secure bonding notwithstanding elevation differences between the electrode metallization and the printed circuit board the lead frame is attached to. Another embodiment relates to an output connector for interconnecting an exciter circuit product with a spark producing device wherein the output connector utilizes a configuration that includes a sealing structure that is reliable and easily installed.

    Method and apparatus for fabricating and connecting a semiconductor power switching device
    6.
    发明申请
    Method and apparatus for fabricating and connecting a semiconductor power switching device 有权
    用于制造和连接半导体功率开关器件的方法和装置

    公开(公告)号:US20070122999A1

    公开(公告)日:2007-05-31

    申请号:US11599103

    申请日:2006-11-14

    IPC分类号: H01L21/00

    摘要: Fabrication processes for manufacturing and connecting a semiconductor switching device are disclosed, including an embodiment for dicing a wafer into individual circuit die by sawing the interface between adjacent die with a saw blade that has an angled configuration across its width, preferably in a generally V-shape so that the adjacent die are severed from one another while simultaneously providing a beveled surface on the sides of each separated die. Another embodiment relates to the manner in which damage to a beveled side surface of the individual die can be smoothed by a chemical etching process. Another embodiment relates to the manner in which the device can be easily mounted on a printed circuit board by providing conductive lands on the printed circuit board that are coextensive with metallized electrodes on the device and which can be placed on the printed circuit board and soldered in place and a unique lead frame which can be soldered to another electrode metallization on the opposite side of the chip and the printed circuit board in a manner which substantially reduces if not eliminates harmful thermal stress and which assures secure bonding notwithstanding elevation differences between the electrode metallization and the printed circuit board the lead frame is attached to. Another embodiment relates to an output connector for interconnecting an exciter circuit product with a spark producing device wherein the output connector utilizes a configuration that includes a sealing structure that is reliable and easily installed.

    摘要翻译: 公开了用于制造和连接半导体开关器件的制造工艺,包括用于通过锯切具有横向宽度的成角度构造的锯片的相邻模具之间的界面,优选地以大致V字形切割 使得相邻的模具彼此切断,同时在每个分离的模具的侧面上提供倾斜的表面。 另一个实施例涉及通过化学蚀刻工艺可以平滑各个管芯的倾斜侧表面的损伤的方式。 另一个实施例涉及通过在印刷电路板上设置导电焊盘而将装置容易地安装在印刷电路板上的方法,该导电焊盘与装置上的金属化电极共同延伸并且可以放置在印刷电路板上并焊接在印刷电路板上 位置和独特的引线框架,其可以以如下方式大大降低,即在不消除有害的热应力的情况下,可以将其焊接到芯片和印刷电路板的相对侧上的另一电极金属化,并且即使电极金属化之间的高差也保证了可靠的接合 和引线框架连接的印刷电路板。 另一个实施例涉及一种用于将激励器电路产品与火花产生装置相互连接的输出连接器,其中输出连接器使用包括可靠且容易安装的密封结构的构造。

    Software controlled latched voltage regulator having wiper switch
decoding
    7.
    发明授权
    Software controlled latched voltage regulator having wiper switch decoding 失效
    软件控制锁定电压调节器,具有抽头开关解码功能

    公开(公告)号:US5712547A

    公开(公告)日:1998-01-27

    申请号:US455301

    申请日:1995-05-31

    CPC分类号: G05F1/46 Y10S318/02

    摘要: A software-controlled latched voltage regulator includes three bipolar transistors responsive to a wiper switch multiplexed signal to place a latch formed by the transistors in an energized state, thereby supplying power to a microcontroller. One of the bipolar transistors is responsive to a deenergization signal supplied by the microcontroller, under software control, to place the latch in a deenergized state wherein regulated power is no longer supplied to the microcontroller. The voltage regulator further includes a zener diode that provides a reference voltage for use in connection with one of the transistors to implement a decoding function that is applied to the switch multiplexed signal to provide a pair of wiper switch position signals for use by the microcontroller during operation. While the latch remains in an energized state, the supplied regulated voltage enables the microcontroller to park a wiper arm of a wiper system, even though an ignition switch is an off position. Once the wiper arm is parked, as sensed by cam switches, the microcontroller deactivates the latch by generating the deenergization signal to power down the system in order to reduce current draw.

    摘要翻译: 软件控制的锁存电压调节器包括三个双极晶体管,其响应于抽头开关多路复用信号,以将由晶体管形成的锁存器置于通电状态,从而向微控制器供电。 双极晶体管之一响应于由微控制器在软件控制下提供的去激励信号,以将锁存器置于断电状态,其中不再向微控制器供电。 电压调节器还包括齐纳二极管,其提供与晶体管中的一个结合使用的参考电压,以实现应用于开关多路复用信号的解码功能,以提供一对擦拭器开关位置信号供微控制器使用 操作。 当闩锁保持在通电状态时,即使点火开关处于关闭位置,所提供的调节电压也使得微控制器能够停放刮水器系统的雨刷臂。 一旦雨刮器臂停放,通过凸轮开关感测到,微控制器通过产生断电信号来使锁存器失效,以使系统断电以减少电流消耗。