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    Fabrication methodology for optoelectronic integrated circuits
    11.
    发明授权
    Fabrication methodology for optoelectronic integrated circuits 有权
    光电集成电路的制作方法

    公开(公告)号：US09490336B1

    公开(公告)日：2016-11-08

    申请号：US14736552

    申请日：2015-06-11

    申请人： Opel Solar, Inc. ,  The University of Connecticut

    发明人： Geoff W. Taylor

    IPC分类号： H01L29/45 ,  H01L21/324 ,  H01L21/3213 ,  H01L29/40 ,  H01L29/205 ,  H01L29/15

    CPC分类号： H01L29/452 ,  H01L21/28575 ,  H01L21/32134 ,  H01L21/32135 ,  H01L29/0653 ,  H01L29/0843 ,  H01L29/1075 ,  H01L29/7783

    摘要： A method of forming an integrated circuit includes depositing a multilayer metal stack on at least one contact layer of semiconductor material. The multilayer metal stack includes a bottom interface layer formed by a combination of indium and at least one high temperature metal on the at least one contact layer of semiconductor material, at least one barrier layer formed on the bottom interface layer, and a layer formed from at least one high temperature metal on the at least one barrier layer. The metal stack is heated such that indium of the bottom interface layer forms a low resistance interface to contact layer. The at least one barrier layer functions as a barrier to diffusion of indium from the bottom interface layer. Subsequent to the heating, the resultant multilayer metal stack can be patterned to form at least one electrode for a given device of the integrated circuit.

    摘要翻译： 形成集成电路的方法包括在半导体材料的至少一个接触层上沉积多层金属堆叠。 多层金属堆叠包括在半导体材料的至少一个接触层上的铟和至少一种高温金属的组合形成的底部界面层，形成在底部界面层上的至少一个势垒层，以及由 至少一个阻挡层上的至少一个高温金属。 金属叠层被加热使得底部界面层的铟形成接触层的低电阻界面。 所述至少一个阻挡层用作从底部界面层扩散铟的屏障。 在加热之后，可以对所得到的多层金属堆叠进行构图以形成用于集成电路的给定器件的至少一个电极。

    Optical Closed Loop Microresonator and Thyristor Memory Device
    12.
    发明申请
    Optical Closed Loop Microresonator and Thyristor Memory Device 有权
    光闭环微谐振器和晶闸管存储器件

    公开(公告)号：US20160091738A1

    公开(公告)日：2016-03-31

    申请号：US14943599

    申请日：2015-11-17

    申请人： Opel Solar, Inc. ,  The University of Connecticut

    发明人： Geoff W. Taylor

    IPC分类号： G02F1/017 ,  G02B6/35 ,  G02B6/124 ,  G02B6/134 ,  G02B6/293 ,  G02B6/13

    CPC分类号： G02F1/01708 ,  B82Y20/00 ,  G02B6/12007 ,  G02B6/124 ,  G02B6/125 ,  G02B6/131 ,  G02B6/1347 ,  G02B6/29338 ,  G02B6/3536 ,  G02F2001/0151 ,  G02F2001/0154 ,  H01L45/06 ,  Y10S977/755

    摘要： A semiconductor device that includes an optical resonator spaced from a waveguide structure to provide for evanescent-wave optical coupling therebetween. The optical resonator includes a closed loop waveguide defined by an epitaxial layer structure that includes at least one quantum well. The semiconductor device also includes circuitry configured to supply an electrical signal that flows within the epitaxial layer structure of the closed loop waveguide. The electrical signal affects charge density in at least quantum well of the closed loop waveguide and controls refractive index of the closed loop waveguide. In one embodiment, the electrical signal is a DC current signal that flows within a vertical thyristor structure of the closed loop waveguide to control refractive index of the closed loop waveguide such that resonance frequency of the closed loop waveguide corresponds to a characteristic wavelength of light.

    摘要翻译： 一种半导体器件，其包括与波导结构间隔开的光学谐振器，以在其之间提供ev逝波光耦合。 光学谐振器包括由包括至少一个量子阱的外延层结构限定的闭环波导。 半导体器件还包括被配置为提供在闭环波导的外延层结构内流动的电信号的电路。 电信号影响闭环波导的至少量子阱中的电荷密度，并控制闭环波导的折射率。 在一个实施例中，电信号是在闭环波导的垂直晶闸管结构内流动的DC电流信号，以控制闭环波导的折射率，使得闭环波导的谐振频率对应于光的特征波长。

    Photonic analog-to-digital converter
    13.
    发明授权
    Photonic analog-to-digital converter 有权
    光子模数转换器

    公开(公告)号：US09201287B1

    公开(公告)日：2015-12-01

    申请号：US14698087

    申请日：2015-04-28

    申请人： The University of Connecticut ,  Opel Solar, Inc.

    发明人： Geoff W. Taylor

    IPC分类号： H03M1/00 ,  G02F7/00 ,  H03M1/12 ,  H03M1/06

    CPC分类号： G02F7/00 ,  G02F1/225 ,  G02F2203/055 ,  H03M1/00 ,  H03M1/12

    摘要： A photonic analog-to-digital converter is provided that includes a tunable light source, an optical sampling clock source, an optical splitter and a plurality of optical signal processing channels. The tunable light source produces an optical signal at a variable wavelength corresponding to analog levels of an electrical input signal. The optical sampling clock source produces an optical sampling clock signal that defines a sequence of sampling periods. The optical splitter is operably coupled to the tunable light source. The optical splitter splits the optical signal produced by the tunable light source for supply to the plurality of optical signal processing channels. Each one of the optical signal processing channels includes a photonic filter and corresponding optoelectronic thyristor comparator that is operably coupled to the optical sampling clock source. The optoelectronic thyristor comparator operates as a discriminator that generates a digital electrical signal representing whether the optical signal produced by the tunable light source has a wavelength that lies within a predetermined wavelength quantization level during the sampling periods defined by the optical sampling clock source. The photonic analog-to-digital converter further includes circuitry that generates a digital word corresponding to the digital electrical signals generated by the optoelectronic thyristor comparators of the plurality of optical signal processing channels.

    摘要翻译： 提供了一种光子模数转换器，其包括可调谐光源，光采样时钟源，光分路器和多个光信号处理通道。 可调谐光源以对应于电输入信号的模拟电平的可变波长产生光信号。 光采样时钟源产生定义采样周期序列的光采样时钟信号。 光分路器可操作地耦合到可调谐光源。 光分路器将由可调谐光源产生的光信号分离，以供给多个光信号处理通道。 每个光信号处理通道包括光子滤波器和可操作地耦合到光采样时钟源的相应的光电晶闸管比较器。 光电晶闸管比较器用作鉴别器，其产生数字电信号，该数字电信号表示在由光采样时钟源限定的采样周期期间由可调谐光源产生的光信号是否具有位于预定波长量化级内的波长。 光子模数转换器还包括产生对应于由多个光信号处理通道的光电晶闸管比较器产生的数字电信号的数字字的电路。

    Thyristor-based optoelectronic oscillator with tunable frequency and optical phase lock loop employing same
    17.
    发明授权
    Thyristor-based optoelectronic oscillator with tunable frequency and optical phase lock loop employing same 有权
    基于晶闸管的光电子振荡器，具有可调谐频率和采用相位锁相环

    公开(公告)号：US09559636B2

    公开(公告)日：2017-01-31

    申请号：US14579404

    申请日：2014-12-22

    申请人： Opel Solar, Inc. ,  The University of Connecticut

    发明人： Geoff W. Taylor

    IPC分类号： H01L29/66 ,  H03B17/00 ,  H04B10/63 ,  H03K17/78 ,  H03K17/687 ,  H01L31/111

    CPC分类号： H03B17/00 ,  G02B6/42 ,  H01L31/1113 ,  H01L31/1129 ,  H03K17/687 ,  H03K17/78 ,  H04B10/63

    摘要： An optoelectronic circuit for producing an optical clock signal that includes an optical thyristor, a waveguide structure and control circuitry. The waveguide structure is configured to split an optical pulse produced by the optical thyristor such that a first portion of such optical pulse is output as part of the optical clock signal and a second portion of such optical pulse is guided back to the optical thyristor to produce another optical pulse that is output as part of the optical clock signal. The control circuitry is operably coupled to terminals of the optical thyristor and receives first and second control signal inputs. The control circuitry is configured to selectively decrease frequency of the optical clock signal based on the first control signal input and to selectively increase frequency of the optical clock signal based on the second control signal input.

    摘要翻译： 一种用于产生包含光学晶闸管，波导结构和控制电路的光时钟信号的光电子电路。 波导结构被配置为分离由光晶闸管产生的光脉冲，使得这种光脉冲的第一部分作为光时钟信号的一部分输出，并且这种光脉冲的第二部分被引导回到光晶闸管以产生 作为光时钟信号的一部分输出的另一个光脉冲。 控制电路可操作地耦合到光晶闸管的端子并且接收第一和第二控制信号输入。 控制电路被配置为基于第一控制信号输入选择性地降低光时钟信号的频率，并且基于第二控制信号输入选择性地增加光时钟信号的频率。

    Semiconductor Device For Optoelectronic Integrated Circuits
    18.
    发明申请
    Semiconductor Device For Optoelectronic Integrated Circuits 有权
    光电集成电路用半导体器件

    公开(公告)号：US20160365476A1

    公开(公告)日：2016-12-15

    申请号：US14736624

    申请日：2015-06-11

    申请人： Opel Solar, Inc. ,  The University of Connecticut

    发明人： Geoff W. Taylor

    IPC分类号： H01L33/00 ,  H01L33/04 ,  H01L33/02

    CPC分类号： H01L33/0062 ,  H01L29/0653 ,  H01L29/0843 ,  H01L29/1075 ,  H01L29/452 ,  H01L29/7783 ,  H01L33/0025 ,  H01L33/0041 ,  H01L33/0075 ,  H01L33/025 ,  H01L33/04 ,  H01L33/06 ,  H01L33/10 ,  H01S5/06203 ,  H01S5/183 ,  H01S5/3086 ,  H01S5/343

    摘要： A semiconductor device includes a series of layers formed on a substrate, including a first plurality of n-type layers, a second plurality of layers that form a p-type modulation doped quantum well structure (MDQWS), a third plurality of layers disposed between the p-type MDQWS and a fourth plurality of layers that form an n-type MDQWS, and a fifth plurality of p-type layers. The first plurality of layers includes a first etch stop layer of n-type formed on an n-type contact layer. The third plurality of layers includes a second etch stop layer formed above the p-type MDQWS and a third etch stop layer formed above and offset from the second etch stop layer. The fifth plurality of layers includes a fourth etch stop layer of p-type formed above the n-type MDQWS and a fifth etch stop layer of p-type doping formed above and offset from the fourth etch stop layer.

    摘要翻译： 半导体器件包括形成在衬底上的一系列层，包括第一多个n型层，形成p型调制掺杂量子阱结构（MDQWS）的第二多个层，第三多个层， p型MDQWS和形成n型MDQWS的第四多个层，以及第五多个p型层。 第一多个层包括在n型接触层上形成的n型第一蚀刻停止层。 第三多层包括形成在p型MDQWS上方的第二蚀刻停止层和形成在第二蚀刻停止层上方并偏移的第三蚀刻停止层。 第五多层包括形成在n型MDQWS上方的p型第四蚀刻停止层，以及在第四蚀刻停止层上方形成并偏移的p型掺杂的第五蚀刻停止层。

    Coherent Optical Receiver
    20.
    发明申请
    Coherent Optical Receiver 有权
    相干光接收机

    公开(公告)号：US20160182155A1

    公开(公告)日：2016-06-23

    申请号：US14578756

    申请日：2014-12-22

    申请人： Opel Solar, Inc. ,  The University of Connecticut

    发明人： Geoff W. Taylor ,  Yan Zhang

    IPC分类号： H04B10/61 ,  H01L31/112 ,  H01L27/144 ,  H01L29/74 ,  H01L29/417 ,  H01L31/0352 ,  H01L31/0232

    CPC分类号： H04B10/613 ,  H01L27/1443 ,  H01L29/41716 ,  H01L29/74 ,  H01L31/02325 ,  H01L31/035209 ,  H01L31/1129 ,  H04B10/615 ,  H04B10/63

    摘要： A coherent optical receiver that receives an optical PSK-modulated signal includes optical elements that combine the optical PSK-modulated signal and an optical local-oscillating (LO) signal and splits the combined optical signals into multiple parts that have a predefined phase offset relative to one another. The receiver further includes at least one thyristor and control circuitry operably coupled to terminals of the at least one thyristor. The control circuitry is configured to receive the multiple parts of the combined optical signals and controls switching operation of the at least one thyristor according to phase offset of optical PSK-modulated signal relative to the optical LO signal.

    摘要翻译： 接收光学PSK调制信号的相干光学接收器包括组合光学PSK调制信号和光学本地振荡（LO）信号的光学元件，并将组合的光学信号分裂成具有相对于 另一个。 接收器还包括可操作地耦合到至少一个晶闸管的端子的至少一个晶闸管和控制电路。 控制电路被配置为接收组合的光信号的多个部分，并且根据光学PSK调制信号相对于光LO信号的相位偏移来控制至少一个晶闸管的开关操作。