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1. 发明授权

US5374589A Process of making a bistable photoconductive component 失效
标题翻译：制造双稳态光电导元件的工艺
公开(公告)号：US5374589A
公开(公告)日：1994-12-20
申请号：US223350
申请日：1994-04-05
申请人： Randy A. Roush , Michael S. Mazzola , David C. Stoudt
发明人： Randy A. Roush , Michael S. Mazzola , David C. Stoudt
IPC分类号： G02B6/12 , G02B6/134 , H01L21/22 , H01L21/322 , H01L31/0304 , H01L31/08 , H01L31/18 , H01L21/223
CPC分类号： H01L31/03042 , G02B6/1342 , H01L21/2215 , H01L21/3228 , H01L31/08 , H01L31/1864 , G02B2006/12169 , Y02E10/544 , Y02P70/521 , Y10S438/90 , Y10S438/919
摘要： Semi-insulating gallium arsenide wafers manufactured with varying silicon nsity shallow donors are copper compensated by heating to temperature of at least 550.degree. C. to thermally diffuse the copper into the wafers and thereby provide deep copper acceptors in the wafer. Higher annealing temperatures are employed for higher concentrations of silicon in the wafers and the thermal diffusion is accomplished in the presence of copper, and in some instances, in the presence of varying quantities of arsenic. The copper compensated, silicon doped, gallium arsenide wafers obtained have the electrical property characteristic capability of being used as photoconductive switching components. In one aspect of the invention the silicon doped gallium arsenide wafer is sealed in a quartz ampoule in the presence of solid copper and solid arsenic and heated to the annealing temperature. In another aspect of the invention, the copper and arsenic are flowed as vapors over the silicon doped gallium arsenide wafer disposed in a reaction tube within a diffusion furnace, while the wafer is heated to the annealing temperature.
摘要翻译：用不同的硅密度浅供体制造的半绝缘砷化镓晶片通过加热到至少550℃的温度进行铜补偿，以将铜热扩散到晶片中，从而在晶片中提供深铜受主。较高的退火温度用于晶片中较高浓度的硅，并且热扩散在铜的存在下实现，并且在一些情况下，在存在不同量的砷的情况下完成。获得的铜补偿的硅掺杂砷化镓晶片具有用作光电导开关元件的电性能特性能力。在本发明的一个方面，将硅掺杂的砷化镓晶片在固体铜和固体砷的存在下密封在石英安瓿中并加热至退火温度。在本发明的另一方面，铜和砷作为蒸汽流过布置在扩散炉内的反应管中的硅掺杂砷化镓晶片上，同时将晶片加热至退火温度。

2. 依法登记的发明

USH1835H Bistable photoconductive switches particularly suited for frequency-agile, radio-frequency sources 失效
标题翻译：双稳态光电开关特别适用于频率敏捷，射频源
公开(公告)号：USH1835H
公开(公告)日：2000-02-01
申请号：US788609
申请日：1997-01-24
申请人： David C. Stoudt , Michael A. Richardson
发明人： David C. Stoudt , Michael A. Richardson
IPC分类号： H01L31/0304 , H01L31/08 , H01L31/09 , H01L31/18 , H01L21/20
CPC分类号： H01L31/03042 , H01L31/08 , H01L31/09 , H01L31/186 , Y02E10/544 , Y02P70/521
摘要： A photoconductive switching device is disclosed that has an enhanced speed of response so that its closed (low) and open (high) resistive states are obtained in response to optical illumination in the less than nanosecond regime. The enhanced speed of response is achieved by neutron irradiation of a material preferably comprising GaAs:Si:Cu. An application of the improved photoconductive switching devices is disclosed which allows the realization of a high-power, frequency-agile RF source topology.
摘要翻译：公开了一种具有增强的响应速度的光电导开关器件，使得其响应于小于纳秒范围内的光学照明获得其闭合（低）和开路（高）电阻状态。增强的响应速度通过优选包括GaAs：Si：Cu的材料的中子照射来实现。公开了改进的光电导开关器件的应用，其允许实现高功率，频率敏捷的RF源拓扑。

3. 发明授权

US5864166A Bistable photoconductive switches particularly suited for frequency-agile, radio-frequency sources 失效
公开(公告)号：US5864166A
公开(公告)日：1999-01-26
申请号：US788631
申请日：1997-01-24
申请人： David C. Stoudt , Michael A. Richardson
发明人： David C. Stoudt , Michael A. Richardson
IPC分类号： H01L31/0304 , H01L31/08 , H01L31/09 , H01L31/18 , H01L27/14 , H01L29/167 , H01L29/207 , H01L31/10
CPC分类号： H01L31/03042 , H01L31/08 , H01L31/09 , H01L31/186 , Y02E10/544 , Y02P70/521
摘要： A photoconductive switching device is disclosed that has an enhanced speed of response so that its closed (low) and open (high) resistive states are obtained in response to optical illumination in the less than nanosecond regime. The enhanced speed of response is achieved by neutron irradiation of a material preferably comprising GaAs:Si:Cu. An application of the improved photoconductive switching devices is disclosed which allows the realization of a high-power, frequency-agile RF source topology.

4. 依法登记的发明

USH1717H Bistable photoconductive switches particularly suited for frequency-agile, radio-frequency sources 失效
公开(公告)号：USH1717H
公开(公告)日：1998-04-07
申请号：US558998
申请日：1995-11-16
申请人： David C. Stoudt , Michael A. Richardson
发明人： David C. Stoudt , Michael A. Richardson
IPC分类号： H01L31/0304 , H01L31/08 , H01L31/09 , H01L31/18 , H01L27/14 , H01L31/00
CPC分类号： H01L31/03042 , H01L31/08 , H01L31/09 , H01L31/186 , Y02E10/544 , Y02P70/521
摘要： A photoconductive switching device is disclosed that has an enhanced speed f response so that its closed (low) and open (high) resistive states are obtained in response to optical illumination in the less than nanosecond regime. The enhanced speed of response is achieved by neutron irradiation of a material preferably comprising GaAs:Si:Cu. An application of the improved photoconductive switching devices is disclosed which allows the realization of a high-power, frequency-agile RF source topology.

5. 发明授权

US5399941A Optical pseudospark switch 失效
标题翻译：光学伪线开关
公开(公告)号：US5399941A
公开(公告)日：1995-03-21
申请号：US56084
申请日：1993-05-03
申请人： Michael G. Grothaus , Jack S. Bernardes , David C. Stoudt
发明人： Michael G. Grothaus , Jack S. Bernardes , David C. Stoudt
IPC分类号： H01T2/02 , H05B37/02
CPC分类号： H01T2/02
摘要： Disclosed is a high-voltage, high-current, multichannel, optically-trigge switch with the potential for improved lifetime of operation. Triggering of the switch is accomplished by ultraviolet illumination of multiple cathode apertures via fiber-optic cables. The trigger optics for each channel, being composed of a fiber-optic cable terminated by some collimating optics, are protected from damaging metalization by enclosing them in an angled metal or dielectric tubes in the cathode backspace. The use of collimating optics at the output of the fiber allows the fiber to be recessed inside the shield tube, providing further protection from discharge by-products.
摘要翻译：公开了高电压，大电流，多通道，光触发开关，具有改善操作寿命的潜力。开关的触发是通过光纤电缆的多个阴极孔径的紫外线照射实现的。每个通道的触发光学元件由由一些准直光学元件端接的光纤电缆组成，通过将其封装在阴极退格中的倾斜金属或电介质管中，免受损坏金属化。在光纤输出端使用准直光学器件可以使光纤在屏蔽管内凹入，从而进一步防止放电副产物。

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