公开(公告)号：US09921442B2

公开(公告)日：2018-03-20

申请号：US14995548

申请日：2016-01-14

Applicant: OmniVision Technologies, Inc.

Inventor： Yin Qian ,  Dyson Hsin-Chih Tai ,  Ming Zhang ,  Chia-Chun Miao

IPC: G02F1/1337 ,  G02F1/136

CPC classification number: G02F1/136 ,  G02F1/133788

Abstract: A novel method of forming an alignment layer of a liquid crystal display device includes the steps of providing a substrate (e.g., a processed silicon wafer, etc.) having an alignment layer material deposited thereon and applying a series of pulses from a pulse laser to anneal portions of the alignment layer material and alter its surface morphology. The method can include the step of depositing the alignment layer material (e.g., a spin-on dielectric including SiO2) over the substrate using a spin-on process prior to laser annealing. Applying the series of laser pulses creates a repetitive pattern of features that facilitate alignment of liquid crystals according to a laser scan trace. Liquid crystal display devices with laser-annealed alignment layer(s) are also disclosed. The alignment layers of the invention are quickly and inexpensively applied and are very robust under prolonged, high-intensity light stress.

公开(公告)号：US20170205653A1

公开(公告)日：2017-07-20

申请号：US14995548

申请日：2016-01-14

Applicant: OmniVision Technologies, Inc.

Inventor： Yin Qian ,  Dyson Hsin-Chih Tai ,  Ming Zhang ,  Chia-Chun Miao

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/136 ,  G02F1/133788

Abstract: A novel method of forming an alignment layer of a liquid crystal display device includes the steps of providing a substrate (e.g., a processed silicon wafer, etc.) having an alignment layer material deposited thereon and applying a series of pulses from a pulse laser to anneal portions of the alignment layer material and alter its surface morphology. The method can include the step of depositing the alignment layer material (e.g., a spin-on dielectric including SiO2) over the substrate using a spin-on process prior to laser annealing. Applying the series of laser pulses creates a repetitive pattern of features that facilitate alignment of liquid crystals according to a laser scan trace. Liquid crystal display devices with laser-annealed alignment layer(s) are also disclosed. The alignment layers of the invention are quickly and inexpensively applied and are very robust under prolonged, high-intensity light stress.

公开(公告)号：US20170162621A1

公开(公告)日：2017-06-08

申请号：US14957464

申请日：2015-12-02

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Yin Qian ,  Dyson H. Tai ,  Chia-Chun Miao ,  Chen-Wei Lu

IPC: H01L27/146

CPC classification number: H01L27/14625 ,  H01L27/1463 ,  H01L27/14636 ,  H01L27/14643 ,  H01L27/14685

Abstract: An image sensor includes a plurality of photodiodes disposed in a semiconductor layer, a first isolation layer, and a dielectric filler. The dielectric filler is disposed in a trench in the first isolation layer, and the first isolation layer is disposed between the semiconductor layer and the dielectric filler. At least one additional isolation layer is disposed proximate to the first isolation layer, and a plurality of light channels in the at least one additional isolation layer extend through the at least one additional isolation layer to the dielectric filler. The plurality of light channels is disposed to direct light into the plurality of photodiodes.

公开(公告)号：US09674493B2

公开(公告)日：2017-06-06

申请号：US14222901

申请日：2014-03-24

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Jin Li ,  Yin Qian ,  Gang Chen ,  Dyson H. Tai

IPC: H04N3/14 ,  H04N9/04 ,  H01L27/146

CPC classification number: H04N9/045 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/14629 ,  H01L27/14645 ,  H01L27/14649

Abstract: An image sensor includes a pixel array with a plurality of pixels arranged in a semiconductor layer. A color filter array including a plurality of groupings of filters is disposed over the pixel array. Each filter is optically coupled to a corresponding one of the plurality of pixels. Each one of the plurality of groupings of filters includes a first, a second, a third, and a fourth filter having a first, a second, the second, and a third color, respectively. A metal layer is disposed over the pixel array and is patterned to include a metal mesh having mesh openings with a size and pitch to block incident light having a fourth color from reaching the corresponding pixel. The metal layer is patterned to include openings without the metal mesh to allow the incident light to reach the other pixels.

公开(公告)号：US09590005B1

公开(公告)日：2017-03-07

申请号：US15005672

申请日：2016-01-25

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Yin Qian ,  Ming Zhang ,  Chen-Wei Lu ,  Jin Li ,  Chia-Chun Miao ,  Dyson H. Tai

IPC: H01L27/146

CPC classification number: H01L27/14607 ,  H01L27/1461 ,  H01L27/1462 ,  H01L27/14623 ,  H01L27/14643 ,  H01L27/14685 ,  H01L27/14689

Abstract: An image sensor includes first and second pluralities of photodiodes interspersed among each other in a semiconductor substrate. Incident light is to be directed through a surface of the semiconductor substrate into the first and second pluralities of photodiodes. The first plurality of photodiodes has greater sensitivity to the incident light than the second plurality of photodiodes. A metal film layer is disposed over the surface of the semiconductor substrate over the second plurality of photodiodes and not over the first plurality of photodiodes. A metal grid is disposed over the surface of the semiconductor substrate, and includes a first plurality of openings through which the incident light is directed into the first plurality of photodiodes. The metal grid further includes a second plurality of openings through which the incident light is directed through the metal film layer into the second plurality of photodiodes.

Abstract translation: 图像传感器包括在半导体衬底中彼此散布的第一和第二多个光电二极管。 入射光将被引导通过半导体衬底的表面进入第一和第二多个光电二极管。 与第二多个光电二极管相比，第一多个光电二极管对入射光的灵敏度更高。 金属膜层设置在第二多个光电二极管的半导体衬底的表面上，而不是在第一多个光电二极管上。 金属栅格设置在半导体衬底的表面上，并且包括第一多个开口，入射光通过该开口被引导到第一多个光电二极管中。 金属栅格还包括第二多个开口，入射光通过该第二多个开口被引导通过金属膜层进入第二多个光电二极管。

公开(公告)号：US20170006266A1

公开(公告)日：2017-01-05

申请号：US15266875

申请日：2016-09-15

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Chen-Wei Lu ,  Jin Li ,  Yin Qian ,  Dyson H. Tai

IPC: H04N9/04 ,  H01L27/146 ,  H04N5/357 ,  G02B5/20 ,  H04N5/378

CPC classification number: H04N9/045 ,  G02B5/201 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/1464 ,  H04N5/357 ,  H04N5/378

Abstract: A color filter array includes a plurality of tiled minimal repeating units, each minimal repeating unit comprising an M×N set of individual filters. Each minimal repeating unit includes a plurality of imaging filters including individual filters having at least first, second, and third photoresponses, and at least one reference filter having a reference photoresponse, wherein the reference filter is positioned among the imaging filters and wherein the reference photoresponse transmits substantially the same percentage of wavelengths that remain unfiltered by filters of a different photoresponse than the incident wavelength. Other embodiments are disclosed and claimed.

Abstract translation: 滤色器阵列包括多个平铺的最小重复单元，每个最小重复单元包括M×N个单独滤波器组。 每个最小重复单元包括多个成像过滤器，包括具有至少第一，第二和第三光响应的单个过滤器和至少一个具有参考光响应的参考过滤器，其中参考过滤器位于成像过滤器之间，其中参考光响应 透过与入射波长不同的光响应的滤光片基本保持未过滤的波长百分比。 公开和要求保护其他实施例。

公开(公告)号：US09372286B2

公开(公告)日：2016-06-21

申请号：US13860859

申请日：2013-04-11

Applicant: OmniVision Technologies, Inc.

Inventor： Jin Li ,  Gang Chen ,  Yin Qian ,  Hsin-Chih Tai

IPC: B05D1/00 ,  G02B3/00 ,  B29D11/00

CPC classification number: G02B3/0018 ,  B05D1/005 ,  B29D11/00365 ,  B29D11/00384 ,  B29D11/00451 ,  G02B3/0043

Abstract: A method of forming microlenses for an image sensor having at least one large-area pixel and at least one small-area pixel is disclosed. The method includes forming a uniform layer of microlens material on a light incident side of the image sensor over the large-area pixel and over the small-area pixel. The method also includes forming the layer of microlens material into a first block disposed over the large-area pixel and into a second block disposed over the small-area pixel. A void is also formed in the second block to reduce a volume of microlens material included in the second block. The first and second blocks are then reflowed to form a respective first microlens and second microlens. The first microlens has substantially the same effective focal length as the second microlens.

Abstract translation: 公开了一种形成具有至少一个大面积像素和至少一个小面积像素的图像传感器的微透镜的方法。 该方法包括在大面积像素上和小区域像素上的图像传感器的光入射侧上形成均匀的微透镜材料层。 该方法还包括将微透镜材料层形成为设置在大面积像素上的第一块和设置在小面积像素上的第二块。 在第二块中还形成空隙，以减少包含在第二块中的微透镜材料的体积。 然后将第一和第二块回流以形成相应的第一微透镜和第二微透镜。 第一微透镜具有与第二微透镜基本上相同的有效焦距。

公开(公告)号：US09331115B2

公开(公告)日：2016-05-03

申请号：US14222833

申请日：2014-03-24

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Jin Li ,  Yin Qian ,  Gang Chen ,  Dyson H. Tai ,  Dajiang Yang

IPC: H04N9/73 ,  H04N9/04 ,  H04N9/87 ,  H01L27/146 ,  G02B13/00

CPC classification number: H01L27/14627 ,  G02B13/0015 ,  H01L27/14643

Abstract: An image sensor includes a plurality of photosensitive devices arranged in a semiconductor substrate. A planar layer is disposed over the plurality of photosensitive devices in the semiconductor substrate. A plurality of first microlenses comprised of a lens material is arranged in first lens regions on the planar layer. A plurality of lens barriers comprised of the lens material is arranged on the planar layer to provide boundaries that define second lens regions on the planar layer. A plurality of second microlenses comprised of the lens material is formed within the boundaries provided by the plurality of lens barriers that define the second lens regions on the planar layer. The plurality of lens barriers are integrated with respective second microlenses after a reflow process of the plurality of second microlenses.

Abstract translation: 图像传感器包括布置在半导体衬底中的多个感光器件。 平面层设置在半导体衬底中的多个光敏器件上。 由透镜材料构成的多个第一微透镜布置在平面层上的第一透镜区域中。 由透镜材料构成的多个透镜屏障布置在平面层上以提供在平面层上限定第二透镜区域的边界。 由透镜材料构成的多个第二微透镜形成在由平面层上限定第二透镜区域的多个透镜屏障提供的边界内。 在多个第二微透镜的回流处理之后，多个透镜屏障与相应的第二微透镜集成。

公开(公告)号：US09305968B2

公开(公告)日：2016-04-05

申请号：US14825703

申请日：2015-08-13

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Yin Qian ,  Hsin-Chih Tai ,  Tiejun Dai ,  Duli Mao ,  Cunyu Yang ,  Howard E. Rhodes

IPC: H01L27/146 ,  H01L23/58 ,  H01L23/00

CPC classification number: H01L27/1469 ,  H01L21/76898 ,  H01L23/481 ,  H01L23/585 ,  H01L24/05 ,  H01L24/08 ,  H01L24/94 ,  H01L27/14618 ,  H01L27/14636 ,  H01L27/14683 ,  H01L27/14689 ,  H01L2224/04042 ,  H01L2224/05567 ,  H01L2224/08145 ,  H01L2224/80896 ,  H01L2224/9202 ,  H01L2224/9212 ,  H01L2224/94 ,  H01L2924/00014 ,  H01L2924/10253 ,  H01L2924/10329 ,  H01L2924/12043 ,  H01L2924/1434 ,  H01L2924/37001 ,  H01L2224/80 ,  H01L2224/05552 ,  H01L2924/00 ,  H01L2224/8203 ,  H01L2224/821 ,  H01L2224/80001 ,  H01L2224/82

Abstract: An integrated circuit system includes a first device wafer bonded to a second device wafer at a bonding interface of dielectrics. Each wafer includes a plurality of dies, where each die includes a device, a metal stack, and a seal ring that is formed at an edge region of the die. Seal rings included in dies of the second device wafer each include a first conductive path provided with metal formed in a first opening that extends from a backside of the second device wafer, through the second device wafer, and through the bonding interface to the seal ring of a corresponding die in the first device wafer.

公开(公告)号：US20160088265A1

公开(公告)日：2016-03-24

申请号：US14491039

申请日：2014-09-19

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Chen-Wei Lu ,  Jin Li ,  Yin Qian ,  Dyson H. Tai

IPC: H04N9/04 ,  G02B5/20 ,  H04N5/374 ,  H01L27/146 ,  H04N5/357 ,  H04N5/365

CPC classification number: H04N9/045 ,  G02B5/201 ,  H01L27/14621 ,  H01L27/14627 ,  H01L27/1464 ,  H04N5/357 ,  H04N5/378

Abstract: A color filter array includes a plurality of tiled minimal repeating units, each minimal repeating unit comprising an M×N set of individual filters. Each minimal repeating unit includes a plurality of imaging filters including individual filters having at least first, second, and third photoresponses, and at least one reference filter having a reference photoresponse, wherein the reference filter is positioned among the imaging filters and wherein the reference photoresponse transmits substantially the crosstalk spectrum that is not filtered from light incident on the color filter array by the plurality of imaging filters. Other embodiments are disclosed and claimed.

Abstract translation: 滤色器阵列包括多个平铺的最小重复单元，每个最小重复单元包括M×N个单独滤波器组。 每个最小重复单元包括多个成像过滤器，包括具有至少第一，第二和第三光响应的单个过滤器和至少一个具有参考光响应的参考过滤器，其中参考过滤器位于成像过滤器之间，其中参考光响应 通过多个成像滤波器基本上发射未滤波的滤波器的入射到滤色器阵列上的串扰谱。 公开和要求保护其他实施例。