Method of fabrication of photomasks
    241.
    发明授权
    Method of fabrication of photomasks 失效
    光电子制造方法

    公开(公告)号:US3673018A

    公开(公告)日:1972-06-27

    申请号:US3673018D

    申请日:1969-05-08

    Applicant: RCA CORP

    CPC classification number: H01L21/00 G03F1/50 G03F1/58

    Abstract: A PHOTOMASK HAS MULTILAYER OPAQUE PLATTERNS ON A TRANSPARENT SUBSTRATE. EACH PATTERN INCLUDES A BOTTOM LAYER AND A TOP LAYER, EACH OF A MATERIAL CAPABLE OF BEING ETCHED BY A SUBSTANCE WHICH WILL NOT ETCH THE SUBSTRATE, AND AN INTERMEDIATE LAYER OF A MATERIAL CAPABLE OF BEING ETCHED BY A SUBSTANCE WHICH WILL NOT ETCH THE BOTTOM AND TOP LAYERS. THE SEVERAL LAYERS COMPENSATE FOR DEFECTS IN EACH LAYER. AN IMPROVED PHOTOMASK FABRICATION METHOD INCLUDES FORMING THE ABOVEMENTIONED PATTERNS BY SUCCESSIVELY DEPOSITING THE BOTTOM AND INTERMEDIATE LAYERS, PHOTOETCHING THE INTERMEDIATE LAYER INTO A DESIRED PATTERN, DEPOSITING THE TOP LAYER, AND THEN PHOTOETCHING THE TOP AND BOTTOM LAYERS INTO A DESIRED PATTERN.

    Method of making a heat pipe having an easily contaminated internal wetting surface
    242.
    发明授权
    Method of making a heat pipe having an easily contaminated internal wetting surface 失效
    制造易于污染的内部湿润表面的热管的方法

    公开(公告)号:US3672020A

    公开(公告)日:1972-06-27

    申请号:US3672020D

    申请日:1970-05-18

    Applicant: RCA CORP

    Abstract: A novel method of making a heat pipe having an easily contaminated internal wetting surface, comprising cleaning the surface and then coating the cleaned surface with a material that is soluble in the working fluid at an operating temperature of the heat pipe. For a heat pipe employing a mercury metal working fluid, easily-oxidized ferrous metal surfaces of the capillary structure and envelope inner wall may be coated with nickel.

    Abstract translation: 一种制造具有容易污染的内部润湿表面的热管的新方法,包括清洁表面,然后在热管的工作温度下用可溶于工作流体的材料涂覆清洁的表面。 对于使用汞金属工作流体的热管,可以用镍涂覆毛细结构和封套内壁的容易氧化的黑色金属表面。

    Switching circuits
    243.
    发明授权
    Switching circuits 失效
    切换电路

    公开(公告)号:US3671778A

    公开(公告)日:1972-06-20

    申请号:US3671778D

    申请日:1970-09-11

    Applicant: RCA CORP

    CPC classification number: H03K17/725

    Abstract: A bidirectional gate controlled device, such as a triac, is connected in circuit with a time constant circuit, an AC source, and a load. The time constant circuit is adapted to charge only when the AC source is of a given polarity; its discharge duration being sufficient to provide a triggering signal to the gate of the device to trigger it into consecutive conduction in both of its conducting directions.

    Abstract translation: 诸如三端双向可控硅开关之类的双向栅极控制器件与时间常数电路,AC源和负载连接在一起。 该时间常数电路仅在AC源为给定极性时才进行充电; 其放电持续时间足以向器件的栅极提供触发信号,以在其导通方向上将其触发成连续导通。

    High speed set-reset flip-flop
    244.
    发明授权
    High speed set-reset flip-flop 失效
    高速设置复位FLIP-FLOP

    公开(公告)号:US3671768A

    公开(公告)日:1972-06-20

    申请号:US3671768D

    申请日:1966-10-31

    Applicant: RCA CORP

    CPC classification number: H03K3/037

    Abstract: A two input OR gate with resistive feedback between the output terminal and one of the input terminals of the OR gate. The second input terminal of the OR gate serves as s the set input terminal to the flip-flop and is normally maintained at a level indicative of a binary '''' 0'''' . To set the flip-flop, a voltage indicative of a 1 is momentarily applied to this set terminal. To reset the flip-flop, a voltage indicative of a zero is momentarily applied to the reset terminal of the flip-flop. The latter is coupled through a level shift circuit, including active element means, to the first input terminal of the OR gate.

    Abstract translation: 在输入端和OR门的一个输入端之间具有电阻反馈的两个输入或门。 或门的第二输入端作为触发器的设定输入端,通常保持在表示二进制“0”的电平。 为了设置触发器,瞬时施加指示1的电压到该设定端子。 为了复位触发器,瞬时施加指示零的电压到触发器的复位端。 后者通过包括有源元件装置的电平移位电路耦合到或门的第一输入端。

    Special effects generators for providing iris-type television displays
    245.
    发明授权
    Special effects generators for providing iris-type television displays 失效
    用于提供IRIS型电视显示的特殊效果发生器

    公开(公告)号:US3671667A

    公开(公告)日:1972-06-20

    申请号:US3671667D

    申请日:1971-04-22

    Applicant: RCA CORP

    CPC classification number: H04N5/265

    Abstract: A special effects generator employs an electronic switch controlled by a comparator which operates to provide a series of pulses of varying durations to control the switch in a manner to produce a single video signal containing a plurality of different video signals to be displayed simultaneously in an iris display. A feedback scheme permits the comparator to provide greater selectivity for enabling the generator to provide smaller diameter iris displays.

    Abstract translation: 特效发生器采用由比较器控制的电子开关,其操作以提供不同持续时间的一系列脉冲以控制开关以产生包含多个不同视频信号的单个视频信号,以在虹膜中同时显示 显示。

    Machine implemented method for positioning and inspecting an object
    246.
    发明授权
    Machine implemented method for positioning and inspecting an object 失效
    机器定位和检查对象的实现方法

    公开(公告)号:US3670153A

    公开(公告)日:1972-06-13

    申请号:US3670153D

    申请日:1970-10-08

    Applicant: RCA CORP

    CPC classification number: G05B19/40 G05B2219/49113 H01L21/681

    Abstract: The object it is desired to position has areas thereon whose peripheral edges are boundries between light and dark regions. For example, the areas may be metal electrodes which appear light and are located on a dark substrate. This object is placed beneath a light-sensing element such as an optical fiber. The object is then scanned in different directions under computer control, by producing relative movement between it and the lightsensing element to ascertain the shapes of a number of these areas, and the position within each such area of a characteristic point such as the center of gravity or the center of one particular edge, of each such area. The coordinates of these points are compared with reference coordinates previously stored in the computer memory for calculating the translational and/or the rotational movement required to center the object and for imparting this movement to the object.

    Abstract translation: 希望放置的物体具有其周边边缘在光和暗区域之间的边界的区域。 例如,这些区域可以是看起来很亮并且位于黑底物上的金属电极。 该物体放置在诸如光纤的感光元件之下。 然后在计算机控制下,通过在其与感光元件之间产生相对运动以确定这些区域的数量的形状以及诸如中心的特征点的每个这样的区域内的位置, 的重力或每个这样的区域的一个特定边缘的中心。 将这些点的坐标与先前存储在计算机存储器中的参考坐标进行比较,以计算中心物体所需的平移和/或旋转运动,并将该运动传递给物体。

    Method of connecting semiconductor device to terminals of package
    247.
    发明授权
    Method of connecting semiconductor device to terminals of package 失效
    将半导体器件连接到封装端子的方法

    公开(公告)号:US3668770A

    公开(公告)日:1972-06-13

    申请号:US3668770D

    申请日:1970-05-25

    Applicant: RCA CORP

    Abstract: The contacts of a semiconductor device are connected to the terminals of a package for the semiconductor device through metal interconnecting strips. The strips are formed on the surface of a plate from which the strips can be easily pulled away. The semiconductor device is seated on the plate with each contact of the semiconductor device engaging a separate one of the strips and the semiconductor device contacts are bonded to the strips. The terminals, which are connected to a frame, are placed in contact with and bonded to the strips. The assembly of the terminals, interconnecting strips and semiconductor device is then removed from the plate. A package is formed around the assembly with the terminals projecting from the package.

    Abstract translation: 半导体器件的触点通过金属互连条连接到用于半导体器件的封装的端子。 条带形成在板的表面上,条可以从该表面容易地拉开。 半导体器件位于板上,半导体器件的每个触点接合分开的一个条,并且半导体器件触点被接合到条上。 连接到框架的端子被放置成与条接触并结合到条带上。 然后将端子,互连条和半导体器件的组合从板上移除。 在组件周围形成包装件,其中端子从包装件突出。

    Method of electroless deposition of metals with improved sensitizer
    248.
    发明授权
    Method of electroless deposition of metals with improved sensitizer 失效
    具有改善的敏感剂的金属沉积的方法

    公开(公告)号:US3666527A

    公开(公告)日:1972-05-30

    申请号:US3666527D

    申请日:1970-07-31

    Applicant: RCA CORP

    CPC classification number: C23C18/285

    Abstract: METHOD FOR AUTOCATALYTICALLY ELECTROLESSLY PLATING A DIELECTRIC SURFACE WITH A METAL SUCH AS NICKEL, COBALT OR COPPER COMPRISING SENSITIZING THE SURFACE WITH AN IMPORVED SENSITIZING SOLUTION COMPRISING BOTH DIVALENT TIN ION AND TETRAVALENT TIN ION, THE SOLUTION HAVING A PH LESS THAN ABOUT 1.5, TREATING THE SENSITIZED SURFACE WITH A CATALYZING SOLUTION TO PROVIDE CATALYTIC NUCLEATING CENTERS, AND PLATING THE METAL ON THE CATALYZED SURFACE. THE IMPROVED SENSITIZING SOLUTION PERMITS PLATING ON SMOOTH, DENSE, WATER REPELLENT PLASTIC SURFACES SUCH AS TEFLON, LUCITE, SILICONE RUBBERS AND MYLAR.

    Tape player with fast tape winding mechanism
    249.
    发明授权
    Tape player with fast tape winding mechanism 失效
    带快速卷帘机的带子播放器

    公开(公告)号:US3666153A

    公开(公告)日:1972-05-30

    申请号:US3666153D

    申请日:1970-06-26

    Applicant: RCA CORP

    CPC classification number: G11B15/28 G11B15/50

    Abstract: A tape player apparatus includes a capstan utilized to drive a magnetizable medium past a transducing head. A flywheel is rotatably mounted to the capstan which is adapted to be rotated at two different speeds. The flywheel is driven at a first rotational velocity which is coupled to the capstan by a releaseable securing means. Means are provided for driving the capstan at a different, greater, rotational velocity. The releaseable securing means releases the capstan from the flywheel for independent rotation when the capstan is driven at the second rotational velocity.

    Abstract translation: 磁带播放器装置包括用于驱动可磁化介质经过换能头的绞盘。 飞轮可旋转地安装到主导轴上,该主导轴适于以两种不同的速度旋转。 飞轮以第一旋转速度驱动,该第一旋转速度通过可释放的固定装置联接到绞盘。 提供用于以不同的,较大的旋转速度驱动绞盘的装置。 当主动轮以第二旋转速度被驱动时,可释放的固定装置将主动轮从飞轮释放,用于独立旋转。

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