High-speed pulse swallower
    1.
    发明授权
    High-speed pulse swallower 失效
    高速脉冲吞咽

    公开(公告)号:US4780890A

    公开(公告)日:1988-10-25

    申请号:US913050

    申请日:1986-09-29

    申请人: Michael G. Kane

    发明人: Michael G. Kane

    IPC分类号: H04J3/06 H03K23/66 H04L7/00

    CPC分类号: H03K23/667

    摘要: A pulse swallower 41 utilizes a local feedback loop (51 and 52) on its output flip-flop (49) enabling it to extinguish its high level output after one cycle of the clock signal being applied as an input. The other input to the pulse swallower is the swallow signal which initiates a pulse swallow cycle for eliminating a single clock pulse of the input clock (42) from appearing at the clock output (44). This configuration of a pulse swallower enables correct operation, or single pulse swallowing, to occur at frequencies of up to one-over-four.tau.(1/4.tau.) which is higher than that of conventional pulse swallowers.

    摘要翻译: 脉冲吞咽器41在其输出触发器(49)上利用局部反馈回路(51和52),使得其能够在作为输入施加时钟信号的一个周期之后熄灭其高电平输出。 脉冲吞吐器的另一个输入是吞咽信号,其启动脉冲吞咽周期以消除输入时钟(42)的单个时钟脉冲,从而不在时钟输出(44)处出现。 脉冲吞咽的这种配置使得能够以高于常规脉冲吞咽的高达四分之一的tau(1/4 tau)的频率发生正确的操作或单次脉冲吞咽。

    Composite flanged ceramic package for electronic devices
    2.
    发明授权
    Composite flanged ceramic package for electronic devices 失效
    用于电子设备的复合法兰陶瓷封装

    公开(公告)号:US4227036A

    公开(公告)日:1980-10-07

    申请号:US943487

    申请日:1978-09-18

    摘要: An improved ceramic-based package for electronic devices having a composite flange for heat dissipation comprising a layer of heat conducting metal having a thermal coefficient of expansion appreciably different from that of the base secured to the base and a second layer of metal secured to the first layer having a thermal coefficient of expansion approximately equal to that of the ceramic. In a preferred embodiment, the first layer is copper, and the second is molybdenum.

    摘要翻译: 一种用于电子器件的改进的基于陶瓷的封装,其具有用于散热的复合凸缘,其包括导热金属层,所述导热金属的热膨胀系数与固定到所述基座的所述基座的热膨胀系数有明显不同,第二金属层固定到所述第一 其热膨胀系数大致等于陶瓷的热膨胀系数。 在优选的实施方案中,第一层是铜,第二层是钼。

    Low resistivity ohmic contacts for compound semiconductor devices
    4.
    发明授权
    Low resistivity ohmic contacts for compound semiconductor devices 失效
    用于化合物半导体器件的低电阻率欧姆接触

    公开(公告)号:US4223336A

    公开(公告)日:1980-09-16

    申请号:US886479

    申请日:1978-03-14

    申请人: James W. Thompson

    发明人: James W. Thompson

    CPC分类号: H01L29/207 H01L29/452

    摘要: Ohmic contacts having reduced resistivity and enhanced current-carrying capability are fabricated in compound semiconductor devices by substantially saturating the compound semiconductor with two different impurities of the same conductivity type, the different impurities being respectively suitable for occupying the two different types of impurity sites available in the compound semiconductor. The result is a sufficient increase in available carriers that conductivity takes place primarily through field emission tunneling and is enhanced to a degree wholly disproportionate to the increase in the number of available carriers.

    摘要翻译: 通过用相同导电类型的两种不同杂质基本上饱和化合物半导体,在化合物半导体器件中制造具有降低的电阻率和增加的载流能力的欧姆接触,不同的杂质分别适合于占据可用的两种不同类型的杂质位置 化合物半导体。 结果是可用载体的充分增加,导电性主要通过场致发射隧道发生,并且增强到与可用载体数量的增加完全不成比例的程度。

    Method for fabricating ballasted finger electrode
    5.
    发明授权
    Method for fabricating ballasted finger electrode 失效
    制作镇流手指电极的方法

    公开(公告)号:US4194174A

    公开(公告)日:1980-03-18

    申请号:US916904

    申请日:1978-06-19

    申请人: Michael F. DeLise

    发明人: Michael F. DeLise

    摘要: A ballasted finger electrode structure is fabricated on a substrate by the steps of depositing on the substrate a layer of resistive material, forming one or more dielectric regions on the resistive layer; and forming two or more finger electrode segments spaced apart over one or more of the dielectric regions but electrically connected by the resistive region underlying the dielectric region. The result is a finger electrode structure with a precisely defined length of resistive ballasting.

    摘要翻译: 通过以下步骤在衬底上制造镇流指状电极结构:在电阻层上形成一层或多层电介质区域的步骤:在衬底上沉积一层电阻材料; 并且形成两个或更多个在一个或多个介电区域间隔开的指状电极段,但是通过电介质区域下方的电阻区域电连接。 结果是具有精确限定长度的电阻镇流器的手指电极结构。