公开(公告)号：US5130572A

公开(公告)日：1992-07-14

申请号：US633078

申请日：1990-12-26

申请人： Robert M. Stitt ,  David J. Kunst

发明人： Robert M. Stitt ,  David J. Kunst

IPC分类号： H03F3/45 ,  G11C27/02 ,  H03F1/08

CPC分类号： G11C27/026 ,  H03F1/083

摘要： A track-and-hold circuit that consists of an operational amplifer wherein the same capacitors are used for phase compensation and as differential holding capacitors. The circuit is switched from track to hold by turning off the input stage by reverse biasing base-emitter junctions through current steering in combination with resistor clamping. Low impedance during the hold mode is maintained because one half of the differential compensation path is connected to the output. Feed-through is eliminated by cascoding the first stage and turning off the cascode devices through current steering with resistor clamping during the holding mode. The holding capacitors' droop due to bias currents is minimized by current cancellation of the second stage.

摘要翻译： 一种跟踪和保持电路，其由操作放大器组成，其中相同的电容器用于相位补偿和用作差分保持电容器。 通过结合电阻钳位通过电流转向反向偏置基极 - 发射极结，关闭输入级，电路从轨道切换到保持状态。 保持模式期间的低阻抗被维持，因为差分补偿路径的一半连接到输出端。 通过级联第一级来消除馈通，并且在保持模式期间通过电阻钳位通过电流转向来关闭共源共栅器件。 由于偏置电流引起的保持电容器的下降通过第二级的电流消除而被最小化。

公开(公告)号：US4636916A

公开(公告)日：1987-01-13

申请号：US738530

申请日：1985-05-24

申请人： Rodney T. Burt ,  Robert M. Stitt

发明人： Rodney T. Burt ,  Robert M. Stitt

IPC分类号： H01L23/40 ,  H05K7/20

CPC分类号： H05K7/20 ,  H01L23/4093 ,  H01L2924/0002

摘要： Method and apparatus for minimizing unpredictable sources of noise, or error voltages, at the microvolt level in precision analog components such as operational amplifiers is described. Sources of such error voltages are temperature gradients across the dice of the precision components enclosed in a hermetically sealed package, thermoelectric voltages caused by temperature differences between junctions of leads of the package with other metals, and light reflected from the substrate through the glass seals around the leads in the base of such packages. A skirted heat sink is positioned in thermal contact with the sides of the package which package is mounted on a substrate. The heat sink transfers heat from the heat sink to its ambient environment by radiation and convection to maintain the temperature within the package substantially constant. The skirt depending from the heat sink encloses the space between the base of the package and the surface of the substrate to form a substantially isothermal enclosure to maintain the temperature of the leads of the package substantially constant. The depending skirt also blocks, or absorbs, radiation from the ambient environment of the package which prevents such radiation from being transmitted through the seals of the package to minimize the production of photoelectric induced error voltages induced in photosensitive circuits of the component.

摘要翻译： 描述了用于在诸如运算放大器的精密模拟组件中最小化不可预测的噪声源或误差电压的方法和装置。 这种误差电压的来源是封装在密封封装中的精密部件的芯片上的温度梯度，由包装与其他金属的引线的接头之间的温度差引起的热电压以及从基板通过玻璃密封件反射的光 在这些包装的基础上的引线。 一个裙带式散热器定位成与包装安装在基板上的封装的侧面热接触。 散热器通过辐射和对流将热量从散热器传递到周围环境，以保持封装内的温度基本上恒定。 从散热器悬挂的裙子封装在包装的基部和基板的表面之间的空间，以形成基本上等温的外壳，以保持包装的引线的温度基本恒定。 悬垂的裙部还阻挡或吸收来自包装的周围环境的辐射，防止这种辐射透过包装的密封件，以最小化在部件的光敏电路中感应的光电感应误差电压的产生。

公开(公告)号：US4467286A

公开(公告)日：1984-08-21

申请号：US439944

申请日：1982-11-08

申请人： Robert M. Stitt

发明人： Robert M. Stitt

IPC分类号： H03G3/04 ,  H03H7/24 ,  H03G3/02

CPC分类号： H03G3/04 ,  H03H7/24

摘要： A ladder network includes a plurality of cascaded prototype network sections connection in cascade and terminated with a termination resistor. The sections each provide gains of 1/2, 2/5, 1/5 and 1/10. Linear circuits are also disclosed which utilize at least one amplifier and the ladder network in a feedback loop.

摘要翻译： 梯形网络包括级联的多个级联的原型网络部分，并且终止于终端电阻器。 这些部分各自提供1/2，2/5，1/5和1/10的增益。 还公开了在反馈回路中利用至少一个放大器和梯形网络的线性电路。

公开(公告)号：US4438338A

公开(公告)日：1984-03-20

申请号：US318475

申请日：1981-11-05

申请人： Robert M. Stitt ,  Neil P. Albaugh

发明人： Robert M. Stitt ,  Neil P. Albaugh

IPC分类号： G02B6/42 ,  H01L31/16 ,  H01L33/60 ,  H01L33/62 ,  G02F1/28

CPC分类号： H01L33/62 ,  G02B6/4204 ,  G02B6/4206 ,  G02B6/4226 ,  H01L31/16 ,  G02B6/4239 ,  H01L2224/48091 ,  H01L2924/01327 ,  H01L2924/12041 ,  H01L33/60

摘要： Means and method is disclosed for achieving a low profile optical coupling to a module comprising an optoelectronic device together with other circuitry. Maintaining the optoelectronic device parallel to the substrate on which it and the associated circuitry are mounted enables the use of standard, well known manufacturing assembly techniques while providing electrical connection to the electric ports of said optoelectronic device. Subsequent to the electrical interconnection operation, the optoelectronic device is moved, together with its connections, to a position substantially orthogonal with the mounting substrate. Optical fiber, light coupling is utilized. The low profile of the overall module package is achieved by introducing the optical fiber in a direction generally parallel with the substrate and perpendicular to the light active surface of the optic port of the optoelectronic device. The structure and method are applicable to both hybrid integrated circuit assembly technology as well as to conventional metallic lead frames for plastic encapsulation.

摘要翻译： 公开了用于实现与包括光电子器件的模块的低剖面光耦合以及其它电路的手段和方法。 维持光电子器件平行于其上和其相关电路安装的衬底能够使用标准的众所周知的制造组装技术，同时提供与所述光电子器件的电端口的电连接。 在电互连操作之后，光电子器件与其连接一起移动到与安装衬底基本正交的位置。 使用光纤，光耦合。 整个模块封装的薄型化是通过在大致平行于衬底并垂直于光电器件的光端口的光活性表面的方向引入光纤来实现的。 该结构和方法适用于混合集成电路组装技术以及用于塑料封装的常规金属引线框架。

公开(公告)号：US4303934A

公开(公告)日：1981-12-01

申请号：US71400

申请日：1979-08-30

申请人： Robert M. Stitt

发明人： Robert M. Stitt

IPC分类号： G11C16/18 ,  H01L23/04 ,  H01L23/057 ,  H01L23/08 ,  H01L23/14 ,  H01L23/495 ,  H01L23/02 ,  H01L23/12 ,  H01L23/16

CPC分类号： H01L23/08 ,  G11C16/18 ,  H01L23/04 ,  H01L23/057 ,  H01L23/145 ,  H01L23/49575 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L24/48 ,  H01L2924/00014 ,  H01L2924/01057 ,  H01L2924/01079 ,  H01L2924/09701 ,  H01L2924/14 ,  H01L2924/16195 ,  H01L2924/19041 ,  H01L2924/3025

摘要： A molded dual in line package is disclosed which has at least one cavity in a first major molded surface thereof into which an integrated circuit chip can be mounted and wire bonded. After the circuit is tested and adjusted, the cavity is sealed with a metal plate. Other embodiments are disclosed which include a second cavity in a second major molded surface of the package which may house or contain a second integrated circuit, an epoxy sealer, or a substrate.

摘要翻译： 公开了一种模制的在线封装件，其在其第一主要模制表面中具有至少一个空腔，集成电路芯片可以安装在其中并引线接合。 电路测试和调整后，用金属板密封腔体。 公开了其它实施例，其包括可以容纳或容纳第二集成电路，环氧树脂密封件或基底的第二主要模制表面中的第二腔。

公开(公告)号：US4218578A

公开(公告)日：1980-08-19

申请号：US931145

申请日：1978-08-04

申请人： Wilfred W. Olschewski ,  Robert M. Stitt

发明人： Wilfred W. Olschewski ,  Robert M. Stitt

IPC分类号： H05K9/00

CPC分类号： H05K9/002 ,  Y10S174/35

摘要： This disclosure relates to a housing or enclosure for an electronic component such as a hybrid module to provide RF shielding therefor. The RF shield has a gap separating two parts of the housing or enclosure to provide D.C. isolation between input and output electrical grounds. In one embodiment, the gap is attained by positioning a split metal sheet or layer within dielectric material such as an inner and outer layer of plastic material. Thus, the gap between the split portions of the RF shield is fixed, set or positioned during the formation of the sandwich dielectric-metal-dielectric structure. The gap has a very narrow spacing to obtain optimum RF shielding while still providing D. C. isolation. The dielectric material in the gap between the two split metal portions of the RF shield prevents electrical arcing between the split portions. In another embodiment, a dielectric, gap forming and metal holding (and separating) member is used to separate the two metal portions of the RF shield.

摘要翻译： 本公开涉及一种用于电子部件的外壳或外壳，例如用于提供RF屏蔽的混合模块。 RF屏蔽具有分离壳体或外壳的两部分的间隙，以在输入和输出电气接地之间提供直流隔离。 在一个实施例中，通过将分离的金属板或层定位在诸如塑料材料的内层和外层的电介质材料内来实现间隙。 因此，在夹层介电金属 - 电介质结构的形成期间，RF屏蔽的分割部分之间的间隙被固定，设定或定位。 间隙具有非常窄的间隔以获得最佳的RF屏蔽，同时仍然提供D.C隔离。 RF屏蔽的两个分开的金属部分之间的间隙中的电介质材料防止分裂部分之间的电弧。 在另一个实施例中，使用电介质，间隙形成和金属保持（和分离）构件来分离RF屏蔽的两个金属部分。

公开(公告)号：US4616188A

公开(公告)日：1986-10-07

申请号：US746860

申请日：1985-06-20

申请人： Robert M. Stitt ,  Rodney T. Burt

发明人： Robert M. Stitt ,  Rodney T. Burt

IPC分类号： H03F3/06 ,  H03F3/34 ,  H03F15/00 ,  G01R33/00

CPC分类号： H03F15/00

摘要： An isolation amplifier circuit is described that utilizes a magnetic field in combination with a Hall effect device to isolate input signals and output signals. The input signal is applied to a conducting coil that produces a magnetic field in a Hall effect material through which current is flowing. Because of the Hall effect, terminals on the sides of the Hall effect material can provide a voltage difference. This voltage difference is amplified and applied to a second conducting coil. The second conducting coil is adapted to provide a magnetic field in the opposite direction from the magnetic field produced by the input signal. When the magnetic fields are identical, no difference in current flowing through the two terminals will be present. The output signal of the difference amplifier circuit will be a function of the input signal. According to a second embodiment, apparatus is included for cancelling ambient magnetic fields. A second isolation amplifier circuit is arranged to have a spatial orientation rotated 180.degree. from a first isolation amplifier. With this configuration, ambient magnetic fields will have cancelling effects. The Hall effect device can be implemented in a PNP transistor with a split collector. The isolation amplifier can be fabricated with monolithic technology.

摘要翻译： 描述了利用与霍尔效应装置组合的磁场来隔离输入信号和输出信号的隔离放大器电路。 输入信号被施加到在电流流过的霍尔效应材料中产生磁场的导电线圈。 由于霍尔效应，霍尔效应材料侧面的端子可以提供电压差。 该电压差被放大并施加到第二导电线圈。 第二导线线圈适于在与由输入信号产生的磁场相反的方向上提供磁场。 当磁场相同时，不存在流过两个端子的电流的差异。 差分放大器电路的输出信号将是输入信号的函数。 根据第二实施例，包括用于消除环境磁场的装置。 第二隔离放大器电路布置成具有从第一隔离放大器旋转180°的空间取向。 通过这种配置，环境磁场将具有消除效果。 霍尔效应器件可以在具有分离集电极的PNP晶体管中实现。 隔离放大器可以用单片技术制造。

公开(公告)号：US4346294A

公开(公告)日：1982-08-24

申请号：US280841

申请日：1981-07-06

申请人： Neil P. Albaugh ,  Robert M. Stitt

发明人： Neil P. Albaugh ,  Robert M. Stitt

IPC分类号： G02B6/42 ,  H01L31/0203 ,  H01L33/48 ,  H01L33/62 ,  G02B5/14

CPC分类号： H01L31/0203 ,  G02B6/4202 ,  G02B6/421 ,  G02B6/4212 ,  G02B6/4248 ,  H01L2224/48091 ,  H01L33/483 ,  H01L33/62

摘要： Means and method for achieving a low profile optical coupling to a planar mounted optoelectronic device. Maintaining the optoelectronic device planar to the substrate on which it and associated circuitry are mounted enables the use of standard, well known manufacturing assembly techniques while providing electrical connection to the electric ports of said optoelectronic device. Optical fiber, light coupling is utilized. The low profile of the overall package is achieved by introducing the optical fiber on a plane which is generally parallel to the light-active surface of the optic port of said optoelectronic device. Actual optical coupling is achieved by introducing a smooth radius bend in the optical fiber so as to bring the fiber and the light-active surface of the optoelectronic device into generally orthogonal relationship. A glass-to-metal seal is provided where the optic fiber enters the package so as to provide a hermetic seal. Further mechanical and environmental support is provided by encapsulating the assembly, within its package, in an encapsulating medium having an index of refraction essentially matching that of the core of the optical fiber and the optic port of said optoelectronic device so as to reduce the possibility of reflective losses at the juncture of the fiber and said light active surface of said optic port. Efficiency and light handling ability of an optical light fiber are increased by providing a mirror-like interface along its entire length and utilizing both the central core and its cladding as light transmission media.

摘要翻译： 用于实现对平面安装的光电子器件的低调光耦合的方法和方法。 将光电子器件平面保持在其上安装有其和相关电路的衬底上能够使用标准的众所周知的制造组装技术，同时提供与所述光电器件的电端口的电连接。 使用光纤，光耦合。 通过将光纤引入大致平行于所述光电子器件的光学端口的光活性表面的平面上来实现整个封装的薄型化。 通过在光纤中引入平滑的半径弯曲以实现光电子器件的光纤和光活性表面大致正交的关系来实现实际光耦合。 提供玻璃 - 金属密封件，其中光纤进入封装以提供密封。 通过将组件封装在其封装内的封装介质中，其具有基本上与光纤的芯部和所述光电子器件的光口基本上匹配的折射率的封装介质来提供进一步的机械和环境支持，以便减少 在所述光纤端口处的反射损耗和所述光端口的所述光活性表面。 通过在其整个长度上提供镜状界面并利用中心纤芯和其包层作为光传输介质来增加光纤光纤的效率和光处理能力。

公开(公告)号：US4121168A

公开(公告)日：1978-10-17

申请号：US827212

申请日：1977-08-24

申请人： Robert M. Stitt

发明人： Robert M. Stitt

IPC分类号： H03F1/30 ,  H03F1/34 ,  H03F3/08 ,  H03F3/18 ,  H03F3/20 ,  H03F3/30 ,  H03F3/21

CPC分类号： H03F1/34 ,  H03F1/30 ,  H03F3/085 ,  H03F3/30 ,  H03F3/3072

摘要： A complementary transistor output circuit and method incorporates an optical coupler including a light emitting diode and a phototransistor connected between the base electrodes of a complementary pair of output transistors including a PNP transistor and an NPN transistor. The emitter of each of the output transistors is connected to an output of the output circuit. The base electrodes of the PNP output transistor and the NPN output transistor are connected, respectively, to first and second current source circuits. The collector electrode of the NPN output transistor is coupled by means of a first feedback circuit including a first resistor and a PNP transistor to the anode of a light emitting diode. The collector electrode of the PNP output transistor is coupled by means of a second feedback circuit to include a second resistor and an NPN transistor to the cathode of the light emitting diode. A phototransistor operates to effectively shunt base drive current supplied by the two current source circuits to the PNP and NPN output transistors to establish a bias voltage, and to maintain a constant quiescent bias current through the output transistors. The magnitude of the quiescent bias current is determined by the resistances of the first and second resistors and by the base-to-emitter voltages of the transistors in the first and second feedback circuits. The method of the invention includes sensing an increase in the bias current in one of the output transistors, increasing the current through the light emitting diode in response to the increase in the bias current, and directing the emitted light to the base of the phototransistor to decrease the bias current.

摘要翻译： 互补晶体管输出电路和方法包括光耦合器，其包括连接在包括PNP晶体管和NPN晶体管的互补输出晶体管对的基极之间的发光二极管和光电晶体管。 每个输出晶体管的发射极连接到输出电路的输出端。 PNP输出晶体管的基极和NPN输出晶体管分别连接到第一和第二电流源电路。 NPN输出晶体管的集电极通过包括第一电阻器和PNP晶体管的第一反馈电路耦合到发光二极管的阳极。 PNP输出晶体管的集电极通过第二反馈电路耦合，以将第二电阻和NPN晶体管包括到发光二极管的阴极。 光电晶体管用于将两个电流源电路提供的基极驱动电流有效地分流到PNP和NPN输出晶体管，以建立偏置电压，并保持通过输出晶体管的恒定静态偏置电流。 静态偏置电流的大小由第一和第二电阻器的电阻和第一和第二反馈电路中的晶体管的基极 - 发射极电压决定。 本发明的方法包括感测输出晶体管之一中的偏置电流的增加，响应于偏置电流的增加而增加通过发光二极管的电流，并将发射的光引导到光电晶体管的基极 降低偏置电流。

公开(公告)号：US4112308A

公开(公告)日：1978-09-05

申请号：US830586

申请日：1977-09-06

申请人： Wilfred W. Olschewski ,  Robert M. Stitt

发明人： Wilfred W. Olschewski ,  Robert M. Stitt

IPC分类号： H01L31/16 ,  G02B27/00

CPC分类号： H01L31/16 ,  H01L2224/48247

摘要： An optical coupling system is described incorporating a light emitting semiconductive device mounted on a substrate having an electrically conductive strip leading to and from the device. A plurality of photo detector, semiconductive devices are mounted on the substrate adjacent to and co-planar with the light emitting device. A housing is mounted over the semiconductive devices and is filled with a clear light transmitting resin; the interior surfaces of the housing are light reflecting so that light emitted by the light emitting semiconductive device is reflected and diffused therefrom impinging upon each of the photo detector, semiconductive devices.

摘要翻译： 描述了一种光耦合系统，其包括安装在具有通向和来自该装置的导电条带的基板上的发光半导体装置。 多个光电检测器，半导体器件安装在与发光器件相邻并与发光器件共面的衬底上。 壳体安装在半导体器件上，并且填充有透明的透光树脂; 壳体的内表面是光反射的，使得由发光半导体器件发射的光被反射和扩散，从而撞击在每个光电检测器，半导体器件上。