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31. 发明授权

US08314869B2 Image sensor with improved black level calibration 有权
标题翻译：具有改进的黑色电平校准的图像传感器
公开(公告)号：US08314869B2
公开(公告)日：2012-11-20
申请号：US13495880
申请日：2012-06-13
申请人： Wei Zheng , Hsin-Chih Tai , Yin Qian , Hongjun Li , Howard E. Rhodes
发明人： Wei Zheng , Hsin-Chih Tai , Yin Qian , Hongjun Li , Howard E. Rhodes
IPC分类号： H04N3/14 , H04N5/225
CPC分类号： H04N5/361 , H01L27/1461 , H01L27/14634 , H01L27/1464 , H04N5/3745
摘要： An imaging system capable of black level calibration includes an imaging pixel array, at least one black reference pixel, and peripheral circuitry. The imaging pixel array includes a plurality of active pixels each coupled to capture image data. The black reference pixel is coupled to generate a black reference signal for calibrating the image data. Light transmitting layers are disposed on a first side of a pixel array die including the imaging system and cover at least the imaging pixel array and the black reference pixel. A light shielding layer is disposed on the first side of the pixel array die and covers a portion of the light transmitting layers and the black reference pixel without covering the imaging pixel array.
摘要翻译：能够进行黑电平校准的成像系统包括成像像素阵列，至少一个黑色参考像素和外围电路。成像像素阵列包括多个有源像素，每个有源像素被耦合以捕获图像数据。黑参考像素被耦合以产生用于校准图像数据的黑参考信号。光透射层设置在包括成像系统的像素阵列管芯的第一侧，并且至少覆盖成像像素阵列和黑色参考像素。遮光层设置在像素阵列管芯的第一侧上，并且覆盖透光层和黑色参考像素的一部分而不覆盖成像像素阵列。

32. 发明申请

US20120282728A1 BACKSIDE ILLUMINATED IMAGING SENSOR WITH REINFORCED PAD STRUCTURE 有权
标题翻译：具有加强垫片结构的背面照明成像传感器
公开(公告)号：US20120282728A1
公开(公告)日：2012-11-08
申请号：US13554490
申请日：2012-07-20
申请人： Hsin-Chih Tai , Howard E. Rhodes , Duli Mao , Vincent Venezia , Yin Qian
发明人： Hsin-Chih Tai , Howard E. Rhodes , Duli Mao , Vincent Venezia , Yin Qian
IPC分类号： H01L31/02
CPC分类号： H01L24/05 , H01L27/14636 , H01L27/1464 , H01L27/14683 , H01L2224/02165 , H01L2224/04042 , H01L2224/05093 , H01L2224/05096 , H01L2224/05556 , H01L2224/05624 , H01L2224/05647 , H01L2224/05684 , H01L2924/00014 , H01L2924/01006 , H01L2924/01013 , H01L2924/01014 , H01L2924/01029 , H01L2924/01033 , H01L2924/01074 , H01L2924/01079 , H01L2924/01082 , H01L2924/01327
摘要： A method of fabricating a backside illuminated imaging sensor that includes a device layer, a metal stack, and an opening is disclosed. The device layer has an imaging array formed in a front side of the device layer, where the imaging array is adapted to receive light from a back side of the device layer. The metal stack is coupled to the front side of the device layer and includes at least one metal interconnect layer having a metal pad. The opening extends from the back side of the device layer to the metal pad to expose the metal pad for wire bonding. The method includes depositing a film on the back side of the device layer and within the opening, then etching the film to form a frame within the opening to structurally reinforce the metal pad.
摘要翻译：公开了一种制造背面照明成像传感器的方法，其包括器件层，金属叠层和开口。器件层具有形成在器件层的前侧的成像阵列，其中成像阵列适于从器件层的背面接收光。金属叠层耦合到器件层的前侧，并且包括具有金属焊盘的至少一个金属互连层。开口从器件层的背面延伸到金属焊盘，露出用于引线接合的金属焊盘。该方法包括在器件层的背侧和开口内沉积薄膜，然后蚀刻薄膜以在开口内形成框架以在金属垫上结构地加固。

33. 发明授权

US08294077B2 Image sensor having supplemental capacitive coupling node 有权
标题翻译：具有补充电容耦合节点的图像传感器
公开(公告)号：US08294077B2
公开(公告)日：2012-10-23
申请号：US12972188
申请日：2010-12-17
申请人： Duli Mao , Hsin-Chih Tai , Vincent Venezia , Howard E. Rhodes , Sohei Manabe
发明人： Duli Mao , Hsin-Chih Tai , Vincent Venezia , Howard E. Rhodes , Sohei Manabe
IPC分类号： H01L27/146
CPC分类号： H04N5/35509 , H04N5/3559 , H04N5/3597 , H04N5/37452 , H04N5/376
摘要： An image sensor includes a pixel array, a bit line, supplemental capacitance node line, and a supplemental capacitance circuit. The pixel array includes a plurality of pixel cells each including a floating diffusion (“FD”) node and a photosensitive element coupled to selectively transfer image charge to the FD node. The bit line is coupled to selectively conduct image data output from a first group of the pixel cells. The supplemental capacitance node line is coupled to the FD node of a second group of the pixel cells to selectively couple a supplemental capacitance to the FD nodes of the second group in response to a control signal. In various embodiments, the first and second group of pixel cells may be the same group or a different group of the pixel cells and may add a capacitive boost feature or a multi conversion gain feature.
摘要翻译：图像传感器包括像素阵列，位线，补充电容节点线和补充电容电路。像素阵列包括多个像素单元，每个像素单元包括浮动扩散（FD）节点和耦合以选择性地将图像电荷传送到FD节点的感光元件。位线被耦合以选择性地进行从第一组像素单元输出的图像数据。辅助电容节点线耦合到第二组像素单元的FD节点，以响应于控制信号选择性地将辅助电容耦合到第二组的FD节点。在各种实施例中，第一和第二组像素单元可以是相同的组或像素单元的不同组，并且可以添加电容性升压特征或多转换增益特征。

34. 发明申请

US20120249845A1 IMAGE SENSOR WITH IMPROVED BLACK LEVEL CALIBRATION 有权
标题翻译：具有改进黑色等级校准的图像传感器
公开(公告)号：US20120249845A1
公开(公告)日：2012-10-04
申请号：US13495880
申请日：2012-06-13
申请人： Wei Zheng , Hsin-Chih Tai , Yin Qian , Hongjun Li , Howard E. Rhodes
发明人： Wei Zheng , Hsin-Chih Tai , Yin Qian , Hongjun Li , Howard E. Rhodes
IPC分类号： H04N5/361 , H04N9/64
CPC分类号： H04N5/361 , H01L27/1461 , H01L27/14634 , H01L27/1464 , H04N5/3745
摘要： An imaging system capable of black level calibration includes an imaging pixel array, at least one black reference pixel, and peripheral circuitry. The imaging pixel array includes a plurality of active pixels each coupled to capture image data. The black reference pixel is coupled to generate a black reference signal for calibrating the image data. Light transmitting layers are disposed on a first side of a pixel array die including the imaging system and cover at least the imaging pixel array and the black reference pixel. A light shielding layer is disposed on the first side of the pixel array die and covers a portion of the light transmitting layers and the black reference pixel without covering the imaging pixel array.
摘要翻译：能够进行黑电平校准的成像系统包括成像像素阵列，至少一个黑色参考像素和外围电路。成像像素阵列包括多个有源像素，每个有源像素被耦合以捕获图像数据。黑参考像素被耦合以产生用于校准图像数据的黑参考信号。光透射层设置在包括成像系统的像素阵列管芯的第一侧，并且至少覆盖成像像素阵列和黑色参考像素。遮光层设置在像素阵列管芯的第一侧上，并且覆盖透光层和黑色参考像素的一部分而不覆盖成像像素阵列。

35. 发明授权

US08237121B2 Alternating row infrared filter for an image sensor 有权
标题翻译：用于图像传感器的交替行红外滤波器
公开(公告)号：US08237121B2
公开(公告)日：2012-08-07
申请号：US12027928
申请日：2008-02-07
申请人： Jeffrey L. Morin , Inayat Khajasha , Howard E. Rhodes
发明人： Jeffrey L. Morin , Inayat Khajasha , Howard E. Rhodes
IPC分类号： H01L31/00 , H01L27/14
CPC分类号： H01L27/14625 , G01J5/0862 , G01J2005/0077 , H01L27/14621
摘要： An image sensor includes near-infrared cut filters formed over an array of photosensitive elements in a predetermined pattern. The near-infrared cut filters may be formed over one half of a photosensitive element in a split pixel arrangement, over one half the photosensitive elements in the array, over every other photosensitive element in the array, and/or in a checkerboard pattern.
摘要翻译：图像传感器包括以预定图案形成在感光元件阵列上的近红外截止滤光片。近红外截止滤光器可以以分裂像素布置，超过阵列中的一半感光元件，阵列中每隔一个感光元件和/或棋盘图案形成在感光元件的一半上。

36. 发明授权

US08233066B2 Image sensor with improved black level calibration 有权
公开(公告)号：US08233066B2
公开(公告)日：2012-07-31
申请号：US12708330
申请日：2010-02-18
申请人： Wei Zheng , Hsin-Chih Tai , Yin Qian , Hongjun Li , Howard E. Rhodes
发明人： Wei Zheng , Hsin-Chih Tai , Yin Qian , Hongjun Li , Howard E. Rhodes
IPC分类号： H04N3/14 , H04N5/225
CPC分类号： H04N5/361 , H01L27/1461 , H01L27/14634 , H01L27/1464 , H04N5/3745
摘要： An imaging system capable of black level calibration includes an imaging pixel array, at least one black reference pixel, and peripheral circuitry. The imaging pixel array includes a plurality of active pixels each coupled to capture image data. The black reference pixel is coupled to generate a black reference signal for calibrating the image data. Light transmitting layers are disposed on a first side of a pixel array die including the imaging system and cover at least the imaging pixel array and the black reference pixel. A light shielding layer is disposed on the first side of the pixel array die and covers a portion of the light transmitting layers and the black reference pixel without covering the imaging pixel array.

37. 发明授权

US08228411B2 Circuit and photo sensor overlap for backside illumination image sensor 有权
标题翻译：背面照明图像传感器的电路和光电传感器重叠
公开(公告)号：US08228411B2
公开(公告)日：2012-07-24
申请号：US13327592
申请日：2011-12-15
申请人： Tiejun Dai , Hsin-Chih Tai , Sohei Manabe , Hidetoshi Nozaki , Howard E. Rhodes
发明人： Tiejun Dai , Hsin-Chih Tai , Sohei Manabe , Hidetoshi Nozaki , Howard E. Rhodes
IPC分类号： H04N3/14 , H04N5/335 , H01L31/062
CPC分类号： H01L27/14603 , H01L27/14627 , H01L27/1464 , H01L27/14641
摘要： A method of operation of a backside illuminated (BSI) pixel array includes acquiring an image signal with a first photosensitive region of a first pixel within the BSI pixel array. The image signal is generated in response to light incident upon a backside of the first pixel. The image signal acquired by the first photosensitive region is transferred to pixel circuitry of the first pixel disposed on a frontside of the first pixel opposite the backside. The pixel circuitry at least partially overlaps the first photosensitive region of the first pixel and extends over die real estate above a second photosensitive region of a second pixel adjacent to the first pixel such that the second pixel donates die real estate unused by the second pixel to the first pixel to accommodate larger pixel circuitry than would fit within the first pixel.
摘要翻译：背面照明（BSI）像素阵列的操作方法包括用BSI像素阵列内的第一像素的第一感光区域获取图像信号。响应于入射在第一像素的背面的光产生图像信号。由第一感光区域获取的图像信号被传送到设置在与背面相对的第一像素的前侧上的第一像素的像素电路。像素电路至少部分地与第一像素的第一光敏区域重叠，并且延伸超过与第一像素相邻的第二像素的第二光敏区域上方的裸片空间，使得第二像素将第二像素未使用的裸片空间提供给第一像素以适应比装配在第一像素内的更大的像素电路。

38. 发明授权

US08195020B2 Resonator for thermo optic device 有权
标题翻译：热光器件谐振器
公开(公告)号：US08195020B2
公开(公告)日：2012-06-05
申请号：US11951796
申请日：2007-12-06
申请人： Gurtej Singh Sandhu , Guy T. Blalock , Howard E. Rhodes
发明人： Gurtej Singh Sandhu , Guy T. Blalock , Howard E. Rhodes
IPC分类号： G02B6/10 , G02B6/26 , G02B6/34 , G02B6/42 , H01L21/00
CPC分类号： G02B6/132 , G02B6/12004 , G02B6/12007 , G02B6/136 , G02F1/011 , G02F1/0147 , G02F2203/15
摘要： A resonator for thermo optic devices is formed in the same process steps as a waveguide and is formed in a depression of a lower cladding while the waveguide is formed on a surface of the lower cladding. Since upper surfaces of the resonator and waveguide are substantially coplanar, the aspect ratio, as between the waveguide and resonator in an area where the waveguide and resonator front one another, decreases thereby increasing the bandwidth of the resonator. The depression is formed by photomasking and etching the lower cladding before forming the resonator and waveguide. Pluralities of resonators are also taught that are formed in a plurality of depressions of the lower cladding. To decrease resonator bandwidth, waveguide(s) are formed in the depression(s) of the lower cladding while the resonator is formed on the surface. Thermo optic devices formed with these resonators are also taught.
摘要翻译：用于热光器件的谐振器以与波导相同的工艺步骤形成，并且形成在下包层的凹陷中，同时波导形成在下包层的表面上。由于谐振器和波导的上表面基本上是共面的，因此在波导和谐振器彼此前向的区域中的波导和谐振器之间的纵横比减小，从而增加了谐振器的带宽。在形成谐振器和波导之前，通过光掩模和蚀刻下部包层形成凹陷。还教导了形成在下部包层的多个凹部中的多个谐振器。为了减小谐振器带宽，当在表面上形成谐振器时，在下包层的凹陷中形成波导。还教导了用这些谐振器形成的热光器件。

39. 发明申请

US20120086844A1 CIRCUIT AND PHOTO SENSOR OVERLAP FOR BACKSIDE ILLUMINATION IMAGE SENSOR 有权
标题翻译：用于背光照明图像传感器的电路和照片传感器覆盖
公开(公告)号：US20120086844A1
公开(公告)日：2012-04-12
申请号：US13327592
申请日：2011-12-15
申请人： Tiejun Dai , Hsin-Chih Tai , Sohei Manabe , Hidetoshi Nozaki , Howard E. Rhodes
发明人： Tiejun Dai , Hsin-Chih Tai , Sohei Manabe , Hidetoshi Nozaki , Howard E. Rhodes
IPC分类号： H04N5/335
CPC分类号： H01L27/14603 , H01L27/14627 , H01L27/1464 , H01L27/14641
摘要： A method of operation of a backside illuminated (BSI) pixel array includes acquiring an image signal with a first photosensitive region of a first pixel within the BSI pixel array. The image signal is generated in response to light incident upon a backside of the first pixel. The image signal acquired by the first photosensitive region is transferred to pixel circuitry of the first pixel disposed on a frontside of the first pixel opposite the backside. The pixel circuitry at least partially overlaps the first photosensitive region of the first pixel and extends over die real estate above a second photosensitive region of a second pixel adjacent to the first pixel such that the second pixel donates die real estate unused by the second pixel to the first pixel to accommodate larger pixel circuitry than would fit within the first pixel.
摘要翻译：背面照明（BSI）像素阵列的操作方法包括用BSI像素阵列内的第一像素的第一感光区域获取图像信号。响应于入射在第一像素的背面的光产生图像信号。由第一感光区域获取的图像信号被传送到设置在与背面相对的第一像素的前侧上的第一像素的像素电路。像素电路至少部分地与第一像素的第一光敏区域重叠，并且延伸超过与第一像素相邻的第二像素的第二光敏区域上方的裸片空间，使得第二像素将第二像素未使用的裸片空间提供给第一像素以适应比装配在第一像素内的更大的像素电路。

40. 发明授权

US08105864B2 Method of forming barrier regions for image sensors 有权
标题翻译：形成图像传感器的屏障区域的方法
公开(公告)号：US08105864B2
公开(公告)日：2012-01-31
申请号：US11600891
申请日：2006-11-17
申请人： Howard E. Rhodes , Richard A. Mauritzson , William T. Quinlin
发明人： Howard E. Rhodes , Richard A. Mauritzson , William T. Quinlin
IPC分类号： H01L21/00
CPC分类号： H01L27/14603 , H01L27/14607 , H01L27/14609 , H01L27/1463 , H01L27/14645 , H01L27/14654 , H01L27/14689
摘要： Embodiments of the invention provide an image sensor that includes a barrier region for isolating devices. The image sensor comprises a substrate and an array of pixel cells formed on the substrate. Each pixel cell comprises a photo-conversion device. The array comprises a first pixel cell having a first configuration, a second pixel cell having a second configuration, and at least one barrier region formed between the first and second pixel cells for capturing and removing charge. The barrier region comprises a charge accumulation region of a particular conductivity type in a substrate electrically connected to a voltage source terminal. The charge accumulation region accumulates charge and prevents charge transference from a pixel cell or peripheral circuitry on one side of the barrier region to a pixel cell on another side of the barrier region.
摘要翻译：本发明的实施例提供了一种图像传感器，其包括用于隔离装置的阻挡区域。图像传感器包括衬底和形成在衬底上的像素单元的阵列。每个像素单元包括光转换装置。该阵列包括具有第一配置的第一像素单元，具有第二配置的第二像素单元，以及形成在第一和第二像素单元之间用于捕获和去除电荷的至少一个势垒区域。阻挡区域包括在电连接到电压源端子的基板中的特定导电类型的电荷累积区域。电荷累积区域累积电荷并防止从阻挡区域一侧上的像素单元或外围电路到屏障区域另一侧上的像素单元的电荷转移。

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