Patents by Inventor Yu-Kun Hsiao
Yu-Kun Hsiao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9332235Abstract: An imaging apparatus includes a filter, a first image sensor and a second image sensor. The filter transmits a first light in a range of wavelengths and reflects a reflected light out of the range of wavelengths. An incident light is split to the first light and the reflected light. The first image sensor receives the first light to generate a first image signal. The second image sensor receives the reflected light to generate a second image signal.Type: GrantFiled: December 10, 2013Date of Patent: May 3, 2016Assignee: VisEra Technologies Company LimitedInventors: Wu-Cheng Kuo, Hsin-Wei Mao, Yu-Kun Hsiao
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Publication number: 20160099270Abstract: An image-sensor structure is provided. The image-sensor structure includes a substrate, a plurality of photoelectric conversion units formed in the substrate, and a plurality of color filter patterns including a red filter pattern having a first refractive index, a green filter pattern having a second refractive index and a blue filter pattern having a third refractive index formed above the substrate and the photoelectric conversion units, wherein at least one color filter pattern contains a component having a specific refractive index such that the second refractive index of the green filter pattern is higher than the first refractive index of the red filter pattern and the third refractive index of the blue filter pattern.Type: ApplicationFiled: October 1, 2014Publication date: April 7, 2016Inventors: Chung-Jung HSU, Yu-Kun HSIAO, Chung-Hao LIN
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Patent number: 9293488Abstract: An image sensing device includes: a semiconductor substrate with a photo-sensing element; a passive layer disposed over the semiconductor substrate, having a first refractive index; a color pattern disposed over the passive layer, wherein the color pattern aligns to the photo-sensing element and has a color selected from the group consisting of red (R), green (G), blue (B), and white (W), and a second refractive index; and an electromagnetic wave guiding element disposed in at least one of the color pattern and the passive layer, having a third refractive index, and the third refractive index is greater than the first refractive index or the second refractive index, and a first difference between the third refractive index and the first refractive index is at least 0.2, and a second difference between the third refractive index and the second refractive index is at least 0.2.Type: GrantFiled: May 7, 2014Date of Patent: March 22, 2016Assignee: VisEra Technologies Company LimitedInventors: Zong-Ru Tu, Yu-Kun Hsiao
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Publication number: 20160056193Abstract: An image sensing device includes: an active layer with a plurality of photo-sensing elements; a color pattern disposed over one of the photo-sensing elements, wherein the color pattern has a color selected from the group consisting of red (R), green (G), and blue (B); a microlens disposed on the color pattern; and a transmissive pattern being adjacent to the color pattern and over another one of the photo-sensing elements, wherein the transmissive pattern includes a color filter portion and a microlens portion, and an absolute value of a difference of refractive indexes between the microlens and the color pattern is less than 0.3, and there is no difference of refractive indexes between the microlens portion and the color filter portion of the transmissive pattern.Type: ApplicationFiled: August 20, 2014Publication date: February 25, 2016Inventors: Han-Lin WU, Chieh-Yuan CHENG, Yu-Kun HSIAO, Huang-Jen CHEN
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Publication number: 20160033688Abstract: A double-lens structure and a method for fabricating the same are provided. The double-lens structure includes a first lens structure formed of a color filter layer having a first refractive index and a second lens structure formed of a micro-lens material layer having a second refractive index and disposed on the first lens structure. The first refractive index of the color filter layer is different from the second refractive index of the micro-lens material layer. An incident light enters the second lens structure and then passes through the first lens structure. Further, a method for fabricating the double-lens structure is also provided.Type: ApplicationFiled: July 31, 2014Publication date: February 4, 2016Inventors: Han-Lin WU, Yu-Kun HSIAO, Yueh-Ching CHENG
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Patent number: 9240428Abstract: Embodiments of an image sensor are provided. The image sensor includes a sensing layer, a filter unit and a microlens. The filter unit is disposed on the sensing layer, and the microlens is disposed on the filter unit. The filter unit has a gradient refractive index. Therefore, the sensitivity of the image sensor is improved.Type: GrantFiled: July 9, 2014Date of Patent: January 19, 2016Assignee: VisEra Technologies Company LimitedInventors: Zong-Ru Tu, Yu-Kun Hsiao
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Publication number: 20160013229Abstract: Embodiments of an image sensor are provided. The image sensor includes a sensing layer, a filter unit and a microlens. The filter unit is disposed on the sensing layer, and the microlens is disposed on the filter unit. The filter unit has a gradient refractive index. Therefore, the sensitivity of the image sensor is improved.Type: ApplicationFiled: July 9, 2014Publication date: January 14, 2016Inventors: Zong-Ru TU, Yu-Kun HSIAO
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Patent number: 9219893Abstract: A method for correcting pixel information of color pixels on a color filter array of an image sensor includes: establishing an M×M distance factor table, selecting M×M pixels of the color filter array, calculating a red/green/blue-color contribution from the red/green/blue pixels to a target pixel in the selected M×M pixels, calculating a red/blue/green-color pixel performance of the target pixel, calculating a red/blue/green-color correcting factor, obtaining a corrected pixel information of each of the red/green/blue pixels, by applying the red/green/blue-color correcting factor to the measured pixel information of each of the red/green/blue pixels.Type: GrantFiled: August 22, 2014Date of Patent: December 22, 2015Assignee: VisEra Technologies Company LimitedInventors: Zong-Ru Tu, Wu-Cheng Kuo, Chin-Chuan Hsieh, Yu-Kun Hsiao
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Publication number: 20150325612Abstract: An image sensing device includes: a semiconductor substrate with a photo-sensing element; a passive layer disposed over the semiconductor substrate, having a first refractive index; a color pattern disposed over the passive layer, wherein the color pattern aligns to the photo-sensing element and has a color selected from the group consisting of red (R), green (G), blue (B), and white (W), and a second refractive index; and an electromagnetic wave guiding element disposed in at least one of the color pattern and the passive layer, having a third refractive index, and the third refractive index is greater than the first refractive index or the second refractive index, and a first difference between the third refractive index and the first refractive index is at least 0.2, and a second difference between the third refractive index and the second refractive index is at least 0.2.Type: ApplicationFiled: May 7, 2014Publication date: November 12, 2015Inventors: Zong-Ru TU, Yu-Kun HSIAO
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Publication number: 20150288939Abstract: A color correction device for an image sensor is provided. The image sensor is divided into regions. The color correction device includes a quantum efficiency (QE) measurement circuit, an addressing circuit, and a correction circuit. The QE measurement circuit generates a color signal according to a sensing signal from each pixel of the image sensor. The addressing circuit receives the color signal corresponding to each pixel, obtains a location of each pixel on the image sensor, and averages all of the color signals corresponding to the pixels whose locations are disposed in one of the regions to obtain an average color signal. The correction circuit receives the average color signal to obtain a color correction matrix of the one of the regions and corrects the color signals of the pixels whose locations are in the one of the regions by the color correction matrix.Type: ApplicationFiled: April 4, 2014Publication date: October 8, 2015Applicant: VISERA TECHNOLOGIES COMPANY LIMITEDInventors: Wu-Cheng KUO, Yu-Kun HSIAO, Chung-Hao LIN
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Publication number: 20150270298Abstract: Solid-state imaging devices and fabrication methods thereof are provided. The solid-state imaging device includes a substrate containing a first photoelectric conversion element and a second photoelectric conversion element. A color filter layer has a first color filter component and a second color filter component respectively disposed above the first and second photoelectric conversion elements. A light-shielding partition is disposed between the first and second color filter components. The light-shielding partition has a height lower than that of the first and second color filter components. A buffer layer is disposed between the first and second color filter components and above the light-shielding partition. The buffer layer has a refractive index lower than that of the color filter layer.Type: ApplicationFiled: March 20, 2014Publication date: September 24, 2015Applicant: VisEra Technologies Company LimitedInventors: Chi-Han LIN, Chih-Kung CHANG, Yu-Kun HSIAO, Zong-Ru TU
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Patent number: 9128218Abstract: A microlens structure is provided. The microlens structure includes a microlens element having a first refraction index. A first film is disposed on the microlens element, wherein the first film has a second refraction index less than the first refraction index. A second film is disposed on the first film, wherein the second film has a third refraction index less than the second refraction index and greater than a refraction index of air. Further, a fabrication method of the microlens structure is also provided.Type: GrantFiled: December 29, 2011Date of Patent: September 8, 2015Assignee: VisEra Technologies Company LimitedInventors: Fu-Tien Weng, Yu-Kun Hsiao
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Publication number: 20150163466Abstract: An imaging apparatus includes a filter, a first image sensor and a second image sensor. The filter transmits a first light in a range of wavelengths and reflects a reflected light out of the range of wavelengths. An incident light is split to the first light and the reflected light. The first image sensor receives the first light to generate a first image signal. The second image sensor receives the reflected light to generate a second image signal.Type: ApplicationFiled: December 10, 2013Publication date: June 11, 2015Applicant: VISERA TECHNOLGIES COMPANY LIMITEDInventors: Wu-Cheng KUO, Hsin-Wei MAO, Yu-Kun HSIAO
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Publication number: 20150064629Abstract: A manufacturing method of microlenses includes providing a substrate; forming a microlens material on the substrate; disposing a mask over the microlens material; performing an exposure process by a radiant beam emitted to the microlens material via the mask; performing a developing process on the microlens material; and forming microlenses by performing a reflow process on the microlens material.Type: ApplicationFiled: August 27, 2013Publication date: March 5, 2015Applicant: VisEra Technologies Company LimitedInventors: Han-Lin WU, Lin-Ya TSENG, Huang-Jen CHEN, Yu-Kun HSIAO, Wu-Cheng KUO
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Publication number: 20140362250Abstract: A method for correcting pixel information of color pixels on a color filter array of an image sensor includes: establishing an M×M distance factor table, selecting M×M pixels of the color filter array, calculating a red/green/blue-color contribution from the red/green/blue pixels to a target pixel in the selected M×M pixels, calculating a red/blue/green-color pixel performance of the target pixel, calculating a red/blue/green-color correcting factor, obtaining a corrected pixel information of each of the red/green/blue pixels, by applying the red/green/blue-color correcting factor to the measured pixel information of each of the red/green/blue pixels.Type: ApplicationFiled: August 22, 2014Publication date: December 11, 2014Inventors: Zong-Ru TU, Wu-Cheng KUO, Chin-Chuan HSIEH, Yu-Kun HSIAO
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Publication number: 20140339615Abstract: A back surface illuminated image sensor is provided. The back surface illuminated image sensor includes: a first passivation layer disposed on the photodiode array; an oxide grid disposed on the first passivation layer and forming a plurality of holes exposing the first passivation layer; a color filter array including a plurality of color filters filled into the holes, wherein the oxide grid has a refractive index smaller than that of plurality of color filters; and a metal grid aligned to the oxide grid, wherein the metal grid has an extinction coefficient greater than zero.Type: ApplicationFiled: May 16, 2013Publication date: November 20, 2014Applicant: ViaEra Technologies Company LimitedInventors: Wei-Ko WANG, Chi-Han LIN, Zong-Ru TU, Yu-Kun HSIAO, Chih-Kung CHANG
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Publication number: 20140339606Abstract: A back surface illuminated image sensor is provided. The back surface illuminated image sensor includes: a first passivation layer disposed on the photodiode array; an oxide grid disposed on the first passivation layer and forming a plurality of holes exposing the first passivation layer; a color filter array including a plurality of color filters filled into the holes, wherein the oxide grid has a refractive index smaller than that of plurality of color filters; and a metal grid aligned to the oxide grid, wherein the metal grid has an extinction coefficient greater than zero.Type: ApplicationFiled: December 4, 2013Publication date: November 20, 2014Applicant: VisEra Technologies Company LimitedInventors: Chi-Han LIN, Zong-Ru TU, Yu-Kun HSIAO, Chih-Kung CHANG
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Patent number: 8866944Abstract: A method for correcting pixel information of color pixels on a color filter array of an image sensor includes: establishing an M×M distance factor table, selecting M×M pixels of the color filter array, calculating a red/green/blue-color contribution from the red/green/blue pixels to a target pixel in the selected M×M pixels, calculating a red/blue/green-color pixel performance of the target pixel, calculating a red/blue/green-color correcting factor, obtaining a corrected pixel information of each of the red/green/blue pixels, by applying the red/green/blue-color correcting factor to the measured pixel information of each of the red/green/blue pixels.Type: GrantFiled: December 28, 2012Date of Patent: October 21, 2014Assignee: VisEra Technologies Company LimitedInventors: Zong-Ru Tu, Wu-Cheng Kuo, Chin-Chuan Hsieh, Yu-Kun Hsiao
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Publication number: 20140264686Abstract: A solid-state imaging device is provided. The solid-state imaging device includes a semiconductor substrate containing a plurality of image sensors. A color filter including a plurality of color filter segments is disposed above the semiconductor substrate. Each of the color filter segments corresponds to one of the image sensors. Further, a plurality of partitions is disposed between the color filter segments. Each of the partitions is disposed between any two adjacent color filter segments. The partition has a height smaller than the height of the color filter segment, wherein the height of the partition is based on the bottom of the color filter segment to the top of the partition, and the height of the color filter segment is based on the bottom of the color filter segment to the top of the color filter segment.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: VISERA TECHNOLOGIES COMPANY LIMITEDInventors: Zong-Ru TU, Chung-Hao LIN, Yu-Kun HSIAO
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Publication number: 20140184863Abstract: A method for correcting pixel information of color pixels on a color filter array of an image sensor includes: establishing an M×M distance factor table, selecting M×M pixels of the color filter array, calculating a red/green/blue-color contribution from the red/green/blue pixels to a target pixel in the selected M×M pixels, calculating a red/blue/green-color pixel performance of the target pixel, calculating a red/blue/green-color correcting factor, obtaining a corrected pixel information of each of the red/green/blue pixels, by applying the red/green/blue-color correcting factor to the measured pixel information of each of the red/green/blue pixels.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: VisEra Technologies Company LimitedInventors: Zong-Ru TU, Wu-Cheng KUO, Chin-Chuan HSIEH, Yu-Kun HSIAO