Low-Doped Semi-Insulating Sic Crystals and Method
    1.
    发明申请
    Low-Doped Semi-Insulating Sic Crystals and Method 审中-公开
    低掺杂半绝缘矽晶体和方法

    公开(公告)号:US20080190355A1

    公开(公告)日:2008-08-14

    申请号:US11629584

    申请日:2005-07-06

    IPC分类号: C30B33/02 H01B1/02

    摘要: The invention relates to substrates of semi-insulating silicon carbide used for semiconductor devices and a method for making the same. The substrates have a resistivity above 106 Ohm-cm, and preferably above 108 Ohm-cm, and most preferably above 109 Ohm-cm, and a capacitance below 5 pF/mm2 and preferably below 1 pF/mm2. The electrical properties of the substrates are controlled by a small amount of added deep level impurity, large enough in concentration to dominate the electrical behavior, but small enough to avoid structural defects. The substrates have concentrations of unintentional background impurities, including shallow donors and acceptors, purposely reduced to below 5·1016 cm−3, and preferably to below 1·1016 cm−3, and the concentration of deep level impurity is higher, and preferably at least two times higher, than the difference between the concentrations of shallow acceptors and shallow donors. The deep level impurity comprises one of selected metals from the periodic groups IB, IIB, IIIB, IVB, VB, VIB, VIIB and VIIIB. Vanadium is a preferred deep level element. In addition to controlling the resistivity and capacitance, a further advantage of the invention is an increase in electrical uniformity over the entire crystal and reduction in the density of crystal defects.

    摘要翻译: 本发明涉及用于半导体器件的半绝缘碳化硅的衬底及其制造方法。 基板的电阻率高于106欧姆 - 厘米,优选高于108欧姆 - 厘米,最优选高于109欧姆 - 厘米,电容低于5 pF / mm2,最好低于1 pF / mm2。 基板的电学特性由少量的加入的深度杂质控制,其浓度足够大以控制电气行为,但足够小以避免结构缺陷。 底物具有无意的背景杂质浓度,包括浅供体和受体,故意降低至5.1016cm-3以下,优选低于1.1016cm-3,深层杂质的浓度较高,优选至少高两倍 ,比浅受体和浅供体的浓度之间的差异。 深层杂质包括选自周期性基团IB,IIB,IIIB,IVB,VB,VIB,VIIB和VIIIB的金属之一。 钒是首选的深层元素。 除了控制电阻率和电容之外,本发明的另一个优点是在整个晶体上的电均匀性的增加和晶体缺陷密度的降低。

    Mounting system for increasing the wear life of a vibrating screen panel
    5.
    发明授权
    Mounting system for increasing the wear life of a vibrating screen panel 失效
    用于增加振动筛面板的磨损寿命的安装系统

    公开(公告)号:US5006228A

    公开(公告)日:1991-04-09

    申请号:US464929

    申请日:1990-01-16

    IPC分类号: B07B1/46

    摘要: Mounting system for substantially increasing the wear life of a screen panel which is adapted to be vibrated, utilizes elastomeric material, such as urethane, to isolate the vibrating mechanism from direct contact with the screen panel. An elastomeric wear strip is bonded to screen wires on the underside of the screen panel. A recessed channel formed in the bottom of the wear strip is adapted to engage an upper contact surface of a rigid vibrating bar member, while the side edges of the channel extend downwardly over the sides of the rigid vibrating bar member to prevent abrasive material which has passed through slots in the screen panel from entering the contact area between the recessed channel and the upper contact surface. The upper contact surface of the vibrating bar member is preferably covered with elastomeric material and crowned so as to cause the screen panel to become curved when its side edges are forced down by a pair of hold-down bars. Contact between the hold-down bars and the screen panel and contact between the ends of the vibrating bar member and the side walls of the screen box assembly is preferably made through layers of elastomeric material. The hold-down bars preferably include angled wedge-shaped portions on their upper surfaces which cooperate with angled brackets on the side walls of the screen box assembly to force the side edges of the screen panel downwardly. Flow diverter strips are provided at the ends of the screen panel to prevent material which has flowed through the screen slots from leaving the screen box.

    摘要翻译: 用于显着增加适于振动的筛板的磨损寿命的安装系统利用诸如聚氨酯之类的弹性体材料将振动机构与屏幕面板直接接触。 弹性耐磨条与屏幕底板上的丝网接合。 形成在耐磨条的底部的凹陷通道适于接合刚性振动杆构件的上接触表面,同时通道的侧边缘向下延伸超过刚性振动杆构件的侧面,以防止具有 穿过屏幕面板中的槽进入凹槽和上接触表面之间的接触区域。 振动杆构件的上接触表面优选地被弹性体材料覆盖并加盖,以便当其侧边缘被一对压紧杆压下时,使得屏幕面板变得弯曲。 压杆和筛板之间的接触和振动杆构件的端部与筛箱组件的侧壁之间的接触优选地通过弹性体材料层制成。 压紧杆优选地包括在其上表面上的成角度的楔形部分,其与屏幕盒组件的侧壁上的倾斜支架配合,以迫使屏幕面板的侧边缘向下。 在屏幕面板的端部设有流动分流器条,以防止流经屏幕槽的材料离开屏幕箱。

    IMPLANTABLE MEDICAL DEVICE FIXATION
    8.
    发明申请
    IMPLANTABLE MEDICAL DEVICE FIXATION 审中-公开
    可植入医疗器械固定

    公开(公告)号:US20150045868A1

    公开(公告)日:2015-02-12

    申请号:US13959808

    申请日:2013-08-06

    IPC分类号: A61N1/375 A61N1/362

    摘要: Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.

    摘要翻译: 描述了用于可植入医疗装置(IMD)的各种固定技术。 在一个示例中,组件包括IMD; 以及一组附加在IMD上的活动固定齿。 组合中的主动固定齿可从弹簧加载位置展开,其中活动固定尖端的远端指向远离IMD的钩状位置,其中主动固定齿向IMD向后弯曲。 活动的固定齿构造成当展开时将IMD固定到患者组织,同时主动固定齿的远端定位成与患者组织相邻。

    Optical sensor for medical device
    9.
    发明授权
    Optical sensor for medical device 有权
    医疗器械用光学传感器

    公开(公告)号:US08463343B2

    公开(公告)日:2013-06-11

    申请号:US12765396

    申请日:2010-04-22

    IPC分类号: A61B5/00

    摘要: An optical sensor for a medical device includes a fixed lens spacing between emit and receive modules to achieve target sensor sensitivity, while varying other sensor parameters in order to increase signal amplitude without increasing power demand. An optical sensor connected to a housing of a medical device includes a circuit board, an opto-electronic component, a wall, a lens, and a ferrule. The circuit board is arranged within the housing. The opto-electronic component is mounted on a surface of the circuit board. The wall protrudes from the surface of the circuit board and surrounds the opto-electronic component. The lens is offset from the surface of the circuit board. The ferrule is connected to the housing, the lens and the wall. An inner surface of the wall mates with an outer surface of the ferrule.

    摘要翻译: 用于医疗装置的光学传感器包括发射和接收模块之间的固定透镜间隔,以实现目标传感器灵敏度,同时改变其它传感器参数,以便增加信号幅度而不增加功率需求。 连接到医疗装置的壳体的光学传感器包括电路板,光电子部件,壁,透镜和套圈。 电路板布置在外壳内。 光电子部件安装在电路板的表面上。 壁从电路板的表面突出并围绕光电子部件。 透镜偏离电路板的表面。 套圈连接到外壳,透镜和墙壁。 壁的内表面与套圈的外表面配合。

    IMPLANTABLE MEDICAL DEVICE FIXATION
    10.
    发明申请
    IMPLANTABLE MEDICAL DEVICE FIXATION 有权
    可植入医疗器械固定

    公开(公告)号:US20120172892A1

    公开(公告)日:2012-07-05

    申请号:US13096881

    申请日:2011-04-28

    IPC分类号: A61N1/05 A61B19/00

    摘要: Various fixation techniques for implantable medical device (IMDs) are described. In one example, an assembly comprises an IMD; and a set of active fixation tines attached to the IMD. The active fixation tines in the set are deployable from a spring-loaded position in which distal ends of the active fixation tines point away from the IMD to a hooked position in which the active fixation tines bend back towards the IMD. The active fixation tines are configured to secure the IMD to a patient tissue when deployed while the distal ends of the active fixation tines are positioned adjacent to the patient tissue.

    摘要翻译: 描述了用于可植入医疗装置(IMD)的各种固定技术。 在一个示例中,组件包括IMD; 以及一组附加在IMD上的活动固定齿。 组合中的主动固定齿可从弹簧加载位置展开,其中活动固定尖端的远端指向远离IMD的钩状位置,其中主动固定齿向IMD向后弯曲。 活动的固定齿构造成当展开时将IMD固定到患者组织,同时主动固定齿的远端定位成与患者组织相邻。