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1. 发明授权

US09508552B1 Method for forming metallic sub-collector for HBT and BJT transistors 有权
标题翻译： HBT和BJT晶体管金属子集电极形成方法
公开(公告)号：US09508552B1
公开(公告)日：2016-11-29
申请号：US14481676
申请日：2014-09-09
申请人： James Chingwei Li , Donald A. Hitko , Yakov Royter , Pamela R. Patterson
发明人： James Chingwei Li , Donald A. Hitko , Yakov Royter , Pamela R. Patterson
IPC分类号： H01L21/44 , H01L21/48 , H01L21/331 , H01L21/20 , H01L29/66 , H01L23/373 , H01L23/535 , H01L29/40 , H01L29/49 , H01L21/74 , H01L21/304
CPC分类号： H01L21/2007 , H01L21/304 , H01L21/6835 , H01L21/74 , H01L21/743 , H01L23/3732 , H01L23/3738 , H01L23/535 , H01L29/401 , H01L29/41708 , H01L29/452 , H01L29/495 , H01L29/66242 , H01L29/66265 , H01L29/66318 , H01L29/7371 , H01L2221/6835 , H01L2221/68368
摘要： A heterojunction bipolar transistor having an emitter, a base, and a collector, the heterojunction bipolar transistor including a metallic sub-collector electrically and thermally coupled to the collector wherein the metallic sub-collector comprises a metallic thin film, and a collector contact electrically connected to the metallic sub-collector.
摘要翻译：一种具有发射极，基极和集电极的异质结双极晶体管，所述异质结双极晶体管包括电和热耦合到集电极的金属副集电极，其中所述金属副集电极包括金属薄膜，并且集电极触点电连接到金属副收集器。

2. 发明授权

US08988173B2 Differential negative impedance converters and inverters with variable or tunable conversion ratios 有权
标题翻译：差分负阻抗变换器和具有可变或可调谐转换比的逆变器
公开(公告)号：US08988173B2
公开(公告)日：2015-03-24
申请号：US13441730
申请日：2012-04-06
申请人： Donald A. Hitko , Carson R. White , Michael W. Yung , David S. Matthews , Susan L. Morton , Jason W. May , Joseph S. Colburn
发明人： Donald A. Hitko , Carson R. White , Michael W. Yung , David S. Matthews , Susan L. Morton , Jason W. May , Joseph S. Colburn
IPC分类号： H03H11/10 , H03H11/48
CPC分类号： H03H11/10 , H03F1/56 , H03F2200/369 , H03H11/44 , H03H11/48 , H04B1/0458 , H04B1/18
摘要： A differential circuit topology that produces a tunable floating negative inductance, negative capacitance, negative resistance/conductance, or a combination of the three. These circuits are commonly referred to as “non-Foster circuits.” The disclosed embodiments of the circuits comprises two differential pairs of transistors that are cross-coupled, a load immittance, multiple current sources, two Common-Mode FeedBack (CMFB) networks, at least one tunable (variable) resistance, and two terminals across which the desired immittance is present. The disclosed embodiments of the circuits may be configured as either a Negative Impedance Inverter (NII) or a Negative Impedance Converter (NIC) and as either Open-Circuit-Stable (OCS) and Short-Circuit-Stable (SCS).
摘要翻译：差分电路拓扑产生可调浮动负电感，负电容，负电阻/电导或三者的组合。这些电路通常被称为“非福斯特电路”。所公开的电路实施例包括交叉耦合的两个差分对晶体管，负载导纳，多个电流源，两个共模反馈（CMFB）网络，至少一个可调谐（可变）电阻，以及两个端子，跨过其中存在所需的导纳。所公开的电路实施例可以被配置为负阻抗逆变器（NII）或负阻抗转换器（NIC）以及作为开路稳定（OCS）和短路稳定（SCS）。

3. 发明授权

US08860092B1 Metallic sub-collector for HBT and BJT transistors 有权
标题翻译：用于HBT和BJT晶体管的金属子集电极
公开(公告)号：US08860092B1
公开(公告)日：2014-10-14
申请号：US12234911
申请日：2008-09-22
申请人： James Chingwei Li , Donald A. Hitko , Yakov Royter , Pamela R. Patterson
发明人： James Chingwei Li , Donald A. Hitko , Yakov Royter , Pamela R. Patterson
IPC分类号： H01L31/0328 , H01L31/0336 , H01L27/082 , H01L29/66 , H01L29/737
CPC分类号： H01L21/2007 , H01L21/304 , H01L21/6835 , H01L21/74 , H01L21/743 , H01L23/3732 , H01L23/3738 , H01L23/535 , H01L29/401 , H01L29/41708 , H01L29/452 , H01L29/495 , H01L29/66242 , H01L29/66265 , H01L29/66318 , H01L29/7371 , H01L2221/6835 , H01L2221/68368
摘要： A heterojunction bipolar transistor having an emitter, a base, and a collector, the heterojunction bipolar transistor including a metallic sub-collector electrically and thermally coupled to the collector wherein the metallic sub-collector comprises a metallic thin film, and a collector contact electrically connected to the metallic sub-collector.
摘要翻译：一种具有发射极，基极和集电极的异质结双极晶体管，所述异质结双极晶体管包括电和热耦合到集电极的金属副集电极，其中所述金属副集电极包括金属薄膜，并且集电极触点电连接到金属副收集器。

4. 发明申请

US20130009722A1 WIDE BANDWIDTH AUTOMATIC TUNING CIRCUIT 有权
公开(公告)号：US20130009722A1
公开(公告)日：2013-01-10
申请号：US13472396
申请日：2012-05-15
申请人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
发明人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
IPC分类号： H03H7/40 , H01Q1/50
CPC分类号： H03H11/30 , H03H7/40
摘要： An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacitance of the tunable non-Foster circuit and the antenna.

5. 发明授权

US07259444B1 Optoelectronic device with patterned ion implant subcollector 失效
标题翻译：具有图案离子注入子集电极的光电器件
公开(公告)号：US07259444B1
公开(公告)日：2007-08-21
申请号：US10895517
申请日：2004-07-20
申请人： Mary Y. Chen , Donald A. Hitko
发明人： Mary Y. Chen , Donald A. Hitko
IPC分类号： H01L31/075 , H01L31/105 , H01L31/117 , H01L31/119
CPC分类号： H01L31/1105 , H01L31/0304 , H01L31/105
摘要： In one embodiment, an optoelectronic device is provided having a pin photo diode including a semi-insulating substrate or layer, with a patterned implant region of a first dopant type. The pin photo diode includes an upper layer having semiconductor material with a second dopant type. An intermediate layer is provided having a substantially intrinsic semiconductor material. An upper layer contact is provided having a portion with a generally circular interior facing edge. The implant region has a first portion having an outer periphery substantially nonoverlapping with the interior facing edge of the upper layer contact. The implant region includes a contact portion located beyond the upper layer contact. A connecting portion couples the first portion and the contact portion of the implant region. In one embodiment, the device includes a heterojunction bipolar transistor coupled to the pin photo diode. The transistor may have a patterned implant region in the semi-insulating substrate or layer comprising the first dopant type.
摘要翻译：在一个实施例中，提供了具有包括半绝缘衬底或层的引脚光电二极管的光电子器件，其具有第一掺杂剂类型的图案化注入区域。引脚光电二极管包括具有第二掺杂剂类型的半导体材料的上层。提供具有基本上本征的半导体材料的中间层。提供具有具有大致圆形内部面向边缘的部分的上层接触。植入区域具有第一部分，该第一部分具有与上层接触件的内部相对边缘基本上不重叠的外周边。植入区域包括位于上层接触层之外的接触部分。连接部分联接植入区域的第一部分和接触部分。在一个实施例中，该器件包括耦合到引脚光电二极管的异质结双极晶体管。晶体管可以在半绝缘衬底或包含第一掺杂剂类型的层中具有图案化注入区域。

6. 发明授权

US09407239B2 Wide bandwidth automatic tuning circuit 有权
标题翻译：宽带宽自动调谐电路
公开(公告)号：US09407239B2
公开(公告)日：2016-08-02
申请号：US13472396
申请日：2012-05-15
申请人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
发明人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
IPC分类号： H03H7/40 , H03H11/30
CPC分类号： H03H11/30 , H03H7/40
摘要： An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacitance of the tunable non-Foster circuit and the antenna.
摘要翻译：一种用于将天线与无线电接收机相匹配的自动调谐电路。自动调谐电路包括用于耦合接收器和天线的可调谐非福斯特电路; 以及感测和反馈电路，用于感测可调谐非福斯特电路和天线的组合电容，并用于调谐可调谐非福斯特电路，以自动最小化可调谐非福斯特电路和天线的组合电容。

7. 发明申请

US20120256709A1 Differential negative impedance converters and inverters with variable or tunable conversion ratios 有权
标题翻译：差分负阻抗变换器和具有可变或可调谐转换比的逆变器
公开(公告)号：US20120256709A1
公开(公告)日：2012-10-11
申请号：US13441730
申请日：2012-04-06
申请人： Donald A. Hitko , Carson R. White , Michael W. Yung , David S. Matthews , Susan L. Morton , Jason W. May , Joseph S. Colburn
发明人： Donald A. Hitko , Carson R. White , Michael W. Yung , David S. Matthews , Susan L. Morton , Jason W. May , Joseph S. Colburn
IPC分类号： H03H11/44
CPC分类号： H03H11/10 , H03F1/56 , H03F2200/369 , H03H11/44 , H03H11/48 , H04B1/0458 , H04B1/18
摘要： A differential circuit topology that produces a tunable floating negative inductance, negative capacitance, negative resistance/conductance, or a combination of the three. These circuits are commonly referred to as “non-Foster circuits.” The disclosed embodiments of the circuits comprises two differential pairs of transistors that are cross-coupled, a load immittance, multiple current sources, two Common-Mode FeedBack (CMFB) networks, at least one tunable (variable) resistance, and two terminals across which the desired immittance is present. The disclosed embodiments of the circuits may be configured as either a Negative Impedance Inverter (NII) or a Negative Impedance Converter (NIC) and as either Open-Circuit-Stable (OCS) and Short-Circuit-Stable (SCS).
摘要翻译：差分电路拓扑产生可调浮动负电感，负电容，负电阻/电导或三者的组合。这些电路通常被称为非福斯特电路。所公开的电路实施例包括交叉耦合的两个差分对晶体管，负载导纳，多个电流源，两个共模反馈（CMFB）网络，至少一个可调谐（可变）电阻和两个终端存在所需的导纳。所公开的电路实施例可以被配置为负阻抗逆变器（NII）或负阻抗转换器（NIC）以及作为开路稳定（OCS）和短路稳定（SCS）。

8. 发明授权

US5467034A Oxygen sensor interface circuit with optimized gain characteristics 失效
标题翻译：具有优化增益特性的氧传感器接口电路
公开(公告)号：US5467034A
公开(公告)日：1995-11-14
申请号：US349573
申请日：1994-12-05
申请人： Gregory J. Manlove , Donald A. Hitko
发明人： Gregory J. Manlove , Donald A. Hitko
IPC分类号： F02D41/14 , H03F1/30 , H03K5/22 , G06G7/18
CPC分类号： F02D41/1493 , H03F1/303
摘要： A sensor interface circuit and method are provided which realizes common mode rejection, compensates for external input impedance and internal loads and achieves a desired transfer response. The interface circuit is particularly useful for amplifying and conditioning signals generated by an oxygen sensor on an automotive vehicle. The sensor interface circuit has first and second inputs for receiving input voltages from a sensor which are joined together to provide a differential voltage representative of the voltage potential between the first and second inputs. RF filtering circuitry is coupled to both inputs. An amplifier having a gain and a first input receives a differential voltage and has an output coupled to a grounded switch for providing an output signal referenced to reference ground. A supply voltage is applied across the inputs and a current is supplied to one of the inputs. A comparator compares a voltage potential on the selected one of the first and second inputs and provides an output which controls a switch for switching the interface circuit output between the amplifier output and a predetermined voltage output. The circuit is particularly useful for automotive applications for interfacing with an oxygen sensor to compensate for the load effects associated with the RF filtering circuitry where voltage excursions may occur between the common mode sensor ground and reference ground.
摘要翻译：提供了实现共模抑制的传感器接口电路和方法，补偿外部输入阻抗和内部负载并实现期望的传输响应。接口电路对于放大和调节由机动车辆上的氧传感器产生的信号特别有用。传感器接口电路具有用于接收来自传感器的输入电压的第一和第二输入端，所述传感器连接在一起以提供代表第一和第二输入端之间的电压电位的差分电压。 RF滤波电路耦合到两个输入。具有增益和第一输入的放大器接收差分电压，并且具有耦合到接地开关的输出，用于提供参考参考地的输出信号。在输入端施加电源电压，并向其中一个输入端提供电流。比较器比较所选择的第一和第二输入端之间的电压电位，并提供控制用于切换放大器输出和预定电压输出之间的接口电路输出的开关的输出。该电路对于与氧传感器接口的汽车应用特别有用，以补偿与RF滤波电路相关联的负载效应，其中在共模传感器接地和参考地之间可能发生电压偏移。

9. 发明授权

US09054798B2 Non-foster circuit stabilization method 有权
标题翻译：非养护电路稳定方法
公开(公告)号：US09054798B2
公开(公告)日：2015-06-09
申请号：US13542654
申请日：2012-07-05
申请人： Zhiwei Xu , Michael W. Yung , Donald A. Hitko , Carson R. White
发明人： Zhiwei Xu , Michael W. Yung , Donald A. Hitko , Carson R. White
IPC分类号： H03H7/38 , H04B1/10 , H04B1/04
CPC分类号： H04B17/104 , H03H11/30 , H03H11/44 , H04B1/0458 , H04B17/345
摘要： A method of and circuit for improving stabilization of a non-Foster circuit. The method comprises steps of and the circuit includes means for measuring a noise hump power at an antenna port or an output port of the non-Foster circuit, comparing the measured noise hump power with a desired level of noise power that corresponds to a desired operating state of the non-Foster circuit, and tuning the non-Foster circuit to generate the desired level of noise power to achieve the desired operating state of the non-Foster circuit.
摘要翻译：一种用于改善非福斯特电路稳定性的方法和电路。该方法包括以下步骤，并且电路包括用于测量非福斯特电路的天线端口或输出端口处的噪声驼峰功率的装置，将测得的噪声驼峰功率与对应于所需操作的期望噪声功率水平进行比较非福斯特电路的状态，以及调谐非福斯特电路以产生期望的噪声功率水平以实现非福斯特电路的期望工作状态。

10. 发明授权

US08374561B1 Non-foster impedance power amplifier 有权
标题翻译：非阻抗功率放大器
公开(公告)号：US08374561B1
公开(公告)日：2013-02-12
申请号：US12768563
申请日：2010-04-27
申请人： Michael W. Yung , Donald A. Hitko
发明人： Michael W. Yung , Donald A. Hitko
IPC分类号： H04B1/04
CPC分类号： H04B1/0458
摘要： A non-Foster impedance power amplifier has a current amplifying device coupled in either an emitter-follower or source-follower configuration with a reactive load such as an antenna load. A negative impedance circuit is provided upstream of a gate or base or other control element of said current amplifying device.
摘要翻译：非福斯特阻抗功率放大器具有以射极跟随器或源跟随器配置耦合的电流放大器件以及诸如天线负载的无功负载。在所述电流放大装置的栅极或基极或其它控制元件的上游设置负阻抗电路。

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