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公开(公告)号：US4181913A
公开(公告)日：1980-01-01
申请号：US801959
申请日：1977-05-31
Applicant: David D. Thornburg
Inventor： David D. Thornburg
IPC: H01L45/00
CPC classification number: H01L45/00
Abstract: Semiconductor devices which exhibit negative differential resistance and comprise a semiconductor material in contact with an electrode and a resistive film layer, preferably comprising an alloy of nickel and chrome is disclosed. The slope of the negative resistance region and the current filament area can be varied by altering the sheet resistivity of the resistive film layer. This allows the semiconductor device to be incorporated in a single monolithic thin film integrated circuit in which the thickness of the semiconductor layer utilized in the integrated circuit is constant. A method for fabricating the aforementioned semiconductor device is also disclosed.
Abstract translation: 公开了具有负的差分电阻并且包括与电极和电阻膜层接触的半导体材料的半导体器件，优选地包括镍和铬的合金。 可以通过改变电阻膜层的电阻率来改变负电阻区域和当前灯丝区域的斜率。 这允许将半导体器件结合到集成电路中使用的半导体层的厚度恒定的单个单片薄膜集成电路中。 还公开了制造上述半导体器件的方法。
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公开(公告)号：US3987311A
公开(公告)日：1976-10-19
申请号：US572487
申请日：1975-04-25
Applicant: David D. Thornburg
Inventor： David D. Thornburg
Abstract: A shift register that utilizes a plurality of amorphous semiconductor threshold switches. The shift register is driven by a two phase clock with odd-numbered threshold switches being supplied a pulse waveform of one phase and even-numbered threshold switches being supplied a pulse waveform of a different phase. The threshold switches have a V-I characteristic that is strongly temperature dependent and each is heated by a heating element which can take the form of an amorphous semiconductor current controlled negative differential resistance device, with the current controlled negative differential resistance devices and the threshold switches fabricated simultaneously on a common substrate.
Abstract translation: 利用多个非晶半导体阈值开关的移位寄存器。 移位寄存器由两相时钟驱动，奇数阈值开关被提供一相的脉冲波形，并且偶数阈值开关被提供为不同相位的脉冲波形。 阈值开关具有强烈的温度依赖性的VI特性，并且每个都由加热元件加热，加热元件可以采取非晶半导体电流控制的负差分电阻器件的形式，同时电流控制的负差分电阻器件和阈值开关同时制造 在共同的基底上。
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公开(公告)号：USD262294S
公开(公告)日：1981-12-15
申请号：US46131
申请日：1979-06-06
Applicant: David D. Thornburg
Designer： David D. Thornburg
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公开(公告)号：US4223088A
公开(公告)日：1980-09-16
申请号：US6628
申请日：1979-01-26
Applicant: David D. Thornburg
Inventor： David D. Thornburg
CPC classification number: G03F7/00
Abstract: A method of forming a defined conductive pattern in a laminar film comprising a thin gold layer interposed between an insulating substrate and a ceramic overlay is disclosed. A base etchant is employed to remove the thin ceramic layer but itself will not etch or remove the gold film layer. Upon removal of the ceramic layer, the exposed gold layer may be removed without any chemical treatment or assistance. Such removal may, for example, be accomplished by fluid agitation or exposure to a fluid stream or by swabbing. A pretreatment of the film surface prior to etching enhances the adhesion of the photoresist subsequently applied to the film surface.
Abstract translation: 公开了一种在层状膜中形成限定的导电图案的方法，其包括介于绝缘基板和陶瓷覆盖层之间的薄金层。 使用碱蚀刻剂去除薄陶瓷层，但本身不会蚀刻或去除金膜层。 在除去陶瓷层之后，暴露的金层可以在没有任何化学处理或辅助的情况下被去除。 这种去除可以例如通过流体搅动或暴露于流体流或通过擦拭来实现。 在蚀刻之前对膜表面的预处理增强了随后施加到膜表面的光致抗蚀剂的粘附。
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公开(公告)号：US4118112A
公开(公告)日：1978-10-03
申请号：US747124
申请日：1976-12-03
Applicant: David D. Thornburg
Inventor： David D. Thornburg
Abstract: A tapered resistor device which includes generally a tapered resistive film comprising a semiconducting material or other suitable material with a negative temperature coefficient of resistivity is provided. It is apparent with reference to the curves which show the variation of .DELTA.E that large energy savings are possible at the narrow end of the taper with relatively small concomitant degradation in the temperature profile of the region of interest. It is therefore seen that employing a material with a negative temperature coefficient of resistivity provides an improvement in reducing power usage according to the principles of the instant invention.
Abstract translation: 提供了一种锥形电阻器件，其包括通常包括具有负温度系数电阻率的半导体材料或其它合适材料的锥形电阻膜。 参考曲线显示DELTA E的变化曲线，在锥度的窄端可以节省大量的能量，同时伴随着感兴趣区域的温度分布的降低。 因此，可以看出，采用具有负的电阻温度系数的材料根据本发明的原理提供了减少功率使用的改进。
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Patent Agency Ranking
公开(公告)号：US4056823A
公开(公告)日：1977-11-01
申请号：US747165
申请日：1976-12-03
Applicant: David D. Thornburg
Inventor： David D. Thornburg
Abstract: An analog chart recorder is provided having a heater assembly which includes a tapered, electrically resistive element that develops a non-uniform temperature profile on electrical energization along its length. A substrate is provided under the resistive film which is in thermal contact with the film. A heat sink in thermal contact with the substrate provides that the temperature distribution will achieve steady state. Means are provided for advancing a heat sensitive medium past and in contact with the heater assembly thus providing the analog chart recorder.
Abstract translation: 提供了具有加热器组件的模拟图表记录器，该加热器组件包括锥形的电阻元件，其在沿其长度的电通电中产生不均匀的温度分布。 在与膜热接触的电阻膜下方设置有基板。 与基板热接触的散热片提供温度分布将达到稳定状态。 提供了用于使热敏介质前进并与加热器组件接触的装置，从而提供模拟图表记录器。
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公开(公告)号：US4570149A
公开(公告)日：1986-02-11
申请号：US475419
申请日：1983-03-15
Applicant: David D. Thornburg , George M. White, III
Inventor： David D. Thornburg , George M. White, III
Abstract: A touch tablet is provided containing two sheets of insulating material each of which contains a plurality of spaced apart conductive lines. A resistive strip on each sheet contacts and connects electrically one end of each of the plurality of conductive lines on that sheet. Each resistive strip functions as a potentiometer. Mounted between the two sheets and spaced apart therefrom is a conductive middle sheet. The first and second sheets are mounted such that the first and second sets of a plurality of conductive lines on these sheets are orthogonal to each other. A user presses on one of the two sheets to bring all three sheets into contact. The impedence of each potentiometer is a function of the contact point. The potentiometer is used as part of an RC circuit to provide a variable time constant representative of the coordinate of the contact point.
Abstract translation: 提供了包含两片绝缘材料的触摸片，每个绝缘材料包含多个间隔开的导电线。 每个片上的电阻带接触并连接在该片上的多条导线中的每条导线的电气一端。 每个电阻条都用作电位计。 安装在两片之间并与之隔开的是导电中间片。 第一和第二片被安装成使得这些片上的多条导线中的第一组和第二组彼此正交。 用户按下两张纸之一使所有三张纸接触。 每个电位器的阻抗是接触点的函数。 电位器用作RC电路的一部分，以提供表示接触点坐标的可变时间常数。
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公开(公告)号：US4465908A
公开(公告)日：1984-08-14
申请号：US408326
申请日：1982-08-16
Applicant: William M. Griffith , Gordon H. May , David D. Thornburg
Inventor： William M. Griffith , Gordon H. May , David D. Thornburg
CPC classification number: G06F3/0338 , H01H25/041
Abstract: A hand controller for use in controlling the motion of a cursor on a video display comprises a spherical surface on which is mounted a flat plate. On the bottom of the flat plate is a unique electrical switch capable of indicating the direction in which the flat plate is rocked over the spherical surface. Attached to the bottom of the flat plate adjacent the spherical surface is a spring consisting of a substantially flat center portion and four spiralling arms extending from the periphery of said center portion to attach to the structure on which the spherical surface is mounted. When the flat plate is rocked over said spherical surface, the spring generates a restoring force which, upon removal of the rocking force, restores the flat plate to its nominal position. The spring makes possible rocking motion of the flat plate over the spherical surface without pinning the flat plate to a point on the spherical surface. In one embodiment, the controller is capable of moving the cursor in eight different directions.
Abstract translation: 用于控制视频显示器上的光标的运动的手控制器包括球面，平板安装在该球面上。 在平板的底部是独特的电开关，能够指示平板在球面上的摇摆方向。 靠近球形表面的平板底部附近是由基本上平坦的中心部分组成的弹簧和从所述中心部分的周边延伸的四个螺旋臂，以附接到安装球面的结构上。 当平板在所述球形表面上摇摆时，弹簧产生恢复力，该恢复力在移除摇摆力时将平板恢复到其标称位置。 该弹簧可使平板在球形表面上摆动，而不将平板固定在球面上的一个点上。 在一个实施例中，控制器能够在八个不同的方向上移动光标。
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公开(公告)号：US4321441A
公开(公告)日：1982-03-23
申请号：US118126
申请日：1980-02-04
Applicant: David D. Thornburg
Inventor： David D. Thornburg
IPC: H01H13/702 , H01H13/785 , H01H3/14
CPC classification number: H01H13/785 , H01H13/702 , H01H2201/026 , H01H2205/01 , H01H2207/004 , H01H2207/014 , H01H2209/08 , H01H2215/002 , H01H2221/004 , H01H2221/016 , H01H2221/03 , H01H2223/034 , H01H2227/018
Abstract: A keyswitch arrangement including an array of switches formed on a flexible dielectric substrate wherein each switch includes a stationary conductive contact lying in the plane of the substrate and an adjacent movable conductive contactor carried on a flap cut out of the substrate and bent along a hinged line located between the contact and the contactor. The stationary contact and movable contactor are both formed on the same side of the substrate and are normally disposed in the open switch position in confronting relationship with the flap at an acute angle to the plane of the substrate.
Abstract translation: 一种钥匙开关装置，包括形成在柔性电介质基片上的开关阵列，其中每个开关包括位于基板的平面内的固定导电接触件和相邻的可动导电接触器，承载在从基板切出并沿着铰接线 位于接触器和接触器之间。 固定触头和活动接触器都形成在基板的相同侧上，并且通常以与基板的平面成锐角的方式设置在与挡板面对关系的打开开关位置。
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公开(公告)号：US4315270A
公开(公告)日：1982-02-09
申请号：US101028
申请日：1979-12-06
Applicant: William A. Lloyd , David D. Thornburg
Inventor： William A. Lloyd , David D. Thornburg
CPC classification number: G03G15/325
Abstract: A backup electrode arrangement comprises a resilient insulating member across one surface of which are a plurality of electrode segments separated from one another and comprising an electrically resistive material forming a shoe. The electrode shoes provide pressure engagement against an array of recording electrodes in an electrostatic recorder with a recording medium disposed therebetween. The electrical resistivity of the shoes is sufficiently high to protect the recording electrodes from pinhole shorts in the dielectric layer of the recording medium. With the backup electrode positioned directly opposite to the recording electrode array, the charging path impedance is reduced permitting reduction in writing speed and a corresponding increase in overall recording time.
Abstract translation: 备用电极装置包括穿过其一个表面的弹性绝缘构件，它们是彼此分离的多个电极段，并且包括形成鞋的电阻材料。 电极鞋在静电记录器中提供与记录电极阵列的压力接合，其间设置有记录介质。 鞋的电阻率足够高以保护记录电极免受记录介质的电介质层中的针孔短路。 由于备用电极与记录电极阵列直接相对设置，因此减小了充电路径阻抗，从而降低了写入速度并且相应地增加了整个记录时间。
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