公开(公告)号：US06917633B2

公开(公告)日：2005-07-12

申请号：US10376455

申请日：2003-03-03

申请人： Ho-Young Kim ,  Eun-Soo Nam ,  Kyoung-Ik Cho

发明人： Ho-Young Kim ,  Eun-Soo Nam ,  Kyoung-Ik Cho

IPC分类号： H01S3/05 ,  H01S3/067 ,  H01S3/08 ,  H01S3/082 ,  H01S3/1055 ,  H01S3/16 ,  H01S3/10 ,  H01S3/083

CPC分类号： H01S3/06791 ,  H01S3/06725 ,  H01S3/0675 ,  H01S3/08022 ,  H01S3/082 ,  H01S3/1055 ,  H01S3/1608

摘要： There is provided a millimeter wave band frequency optical oscillator predicted to be used as a millimeter wave oscillating frequency signal source in a base station of a millimeter wave wireless transmission system. The optical oscillator has a double resonator structure in which a pair of wavelength tunable fiber grating mirrors are inserted into a unilateral fiber-ring laser resonator in order to internally and additionally form a linear laser resonator. The double resonator structure composed of the two stable laser resonators can oscillate laser of two modes. Due to a beat phenomenon occurring between the two modes, received laser is modulated to an ultra-speed frequency of 60 GHz or greater. A variation in the gain within a resonator is induced by a polarization controller using the dependency of laser modes upon polarization. A modulation frequency is consecutively changed from 60 GHz to 80 GHz by controlling the wavelength of light reflected by the fiber grating mirrors.

摘要翻译： 提供了在毫米波无线传输系统的基站中预测用作毫米波振荡频率信号源的毫米波段频率光学振荡器。 光学振荡器具有双谐振器结构，其中一对波长可调光纤光栅镜被插入到单边光纤环激光谐振器中，以便在内部并另外形成线性激光谐振器。 由两个稳定的激光谐振器组成的双谐振器结构可以振荡两种模式的激光。 由于在两种模式之间发生拍子现象，所接收的激光器被调制到60GHz或更大的超速频率。 谐振器内增益的变化由偏振控制器引起，该偏振控制器使用激光模式对极化的依赖性。 通过控制由光纤光栅镜反射的光的波长，调制频率从60GHz连续地变化到80GHz。

公开(公告)号：US20100133586A1

公开(公告)日：2010-06-03

申请号：US12463011

申请日：2009-05-08

申请人： Byoung-Gue MIN ,  Jong-Min Lee ,  Seong-II Kim ,  Kyung-Ho Lee ,  Hyung-Sup Yoon ,  Eun-Soo Nam

发明人： Byoung-Gue MIN ,  Jong-Min Lee ,  Seong-II Kim ,  Kyung-Ho Lee ,  Hyung-Sup Yoon ,  Eun-Soo Nam

IPC分类号： H01L29/737 ,  H01L21/331

CPC分类号： H01L29/42304 ,  H01L29/41708 ,  H01L29/66318 ,  H01L29/7371

摘要： Provided are a heterojunction bipolar transistor and a method of forming the same. The method includes forming an emitter electrode on an emitter capping pattern, a base electrode on a base pattern, and a collector electrode on a subcollector pattern, the subcollector pattern, the base pattern, an emitter pattern, and the emitter capping pattern being provided to a substrate; patterning a protection insulation layer and a first dummy pattern covering the emitter electrode, the base electrode, and the collector electrode, to expose the emitter electrode, the base electrode, and the collector electrode; forming a second dummy pattern to electrically separate the emitter electrode, the base electrode, and the collector electrode; forming, on the substrate provided with the second dummy pattern, an emitter electrode interconnection connected to the emitter electrode, a base electrode interconnection connected to the base electrode, and a collector electrode interconnection connected to the collector electrode; and removing the first and second dummy patterns.

摘要翻译： 提供了一种异质结双极晶体管及其形成方法。 该方法包括在发射极盖图案上形成发射电极，在基底图案上形成基极，在子集电极图案上形成集电极，将子集电极图案，基底图案，发射极图案和发射极封盖图案设置在 底物; 图案化保护绝缘层和覆盖发射电极，基极和集电极的第一虚拟图案，以暴露发射极，基极和集电极; 形成第二虚设图形以电分离发射电极，基极和集电极; 在设置有第二虚设图案的基板上形成连接到发射极的发射极电极互连，与基极连接的基极互连和与集电极连接的集电极互连; 以及去除第一和第二虚拟图案。

公开(公告)号：US08183612B2

公开(公告)日：2012-05-22

申请号：US12498918

申请日：2009-07-07

申请人： Young-Jun Chong ,  Eun-Soo Nam ,  Jae-Sik Sim ,  Yong-Hwan Kwon ,  Bong-Ki Mheen

发明人： Young-Jun Chong ,  Eun-Soo Nam ,  Jae-Sik Sim ,  Yong-Hwan Kwon ,  Bong-Ki Mheen

IPC分类号： H01L29/72

CPC分类号： H01L31/1075 ,  H01L31/02327

摘要： Provided are an optical receiver and a method of forming the same. The optical receiver includes a lens, a photo detector, and a hetero-junction bipolar transistor. The lens is attached to a backside of a substrate. The photo detector is disposed on a top surface of the substrate. The hetero-junction bipolar transistor is disposed on the top surface of the substrate. The lens condenses an incident optical signal to transmit the condensed optical signal to the photo detector.

摘要翻译： 提供一种光接收机及其形成方法。 光接收器包括透镜，光电检测器和异质结双极晶体管。 透镜附着到基板的背面。 光检测器设置在基板的顶表面上。 异质结双极晶体管设置在基板的顶表面上。 透镜会聚光入射光信号，以将光信号发送到光检测器。