Patents by Inventor Ching Chao Chang
Ching Chao Chang 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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Publication number: 20240379357Abstract: Implantation mask formation techniques described herein include increasing an initial aspect ratio of a pattern in an implantation mask by non-lithography techniques, which may include forming a resist hardening layer on the implantation mask. The pattern may be formed by photolithography techniques to the initial aspect ratio that reduces or minimizes the likelihood of pattern collapse during formation of the pattern. Then, the resist hardening layer is formed on the implantation mask to increase the height of the pattern and reduce the width of the pattern, which increases the aspect ratio between the height of the openings or trenches and the width of the openings or trenches of the pattern. In this way, the pattern in the implantation mask may be formed to an ultra-high aspect ratio in a manner that reduces or minimizes the likelihood of pattern collapse during formation of the pattern.Type: ApplicationFiled: July 25, 2024Publication date: November 14, 2024Inventors: Wei-Chao CHIU, Yong-Jin LIOU, Yu-Wen CHEN, Chun-Wei CHANG, Ching-Sen KUO, Feng-Jia SHIU
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Publication number: 20240377728Abstract: The present disclosure provides a photomask. The photomask includes a plurality of pattern areas and a training area. Each of the pattern areas is defined by a respective boundary, and a first pattern area of the pattern areas includes a first mask feature. The training area is adjacent to a boundary of the first pattern area, and includes a first training feature. The first training feature is comparable to the first mask feature.Type: ApplicationFiled: July 23, 2024Publication date: November 14, 2024Inventors: CHIEN-HUNG LAI, HAO-MING CHANG, HSUAN-WEN WANG, CHING-TING YANG, CHENG-KUANG CHEN, CHIEN-CHAO HUANG
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Patent number: 12100592Abstract: Implantation mask formation techniques described herein include increasing an initial aspect ratio of a pattern in an implantation mask by non-lithography techniques, which may include forming a resist hardening layer on the implantation mask. The pattern may be formed by photolithography techniques to the initial aspect ratio that reduces or minimizes the likelihood of pattern collapse during formation of the pattern. Then, the resist hardening layer is formed on the implantation mask to increase the height of the pattern and reduce the width of the pattern, which increases the aspect ratio between the height of the openings or trenches and the width of the openings or trenches of the pattern. In this way, the pattern in the implantation mask may be formed to an ultra-high aspect ratio in a manner that reduces or minimizes the likelihood of pattern collapse during formation of the pattern.Type: GrantFiled: May 12, 2023Date of Patent: September 24, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Wei-Chao Chiu, Yong-Jin Liou, Yu-Wen Chen, Chun-Wei Chang, Ching-Sen Kuo, Feng-Jia Shiu
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Publication number: 20240282582Abstract: A method of fabricating a semiconductor device includes determining a concentration of a byproduct in a photoresist composition. A photoresist layer is formed over a substrate using the photoresist composition when the concentration of the byproduct is below a threshold value. A photoresist pattern is formed in the photoresist layer exposing a portion of the substrate, and an operation is performed on the exposed portion of the substrate.Type: ApplicationFiled: February 16, 2023Publication date: August 22, 2024Inventors: Wei-Chao CHIU, Yong-Jin LIOU, Chun-Wei CHANG, Ching-Sen KUO, Feng-Jia SHIU
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Publication number: 20240274637Abstract: A method includes performing a first lithography process using a first pattern of a first photomask to form a first photoresist pattern on a front side of a device substrate; performing a first implantation process using the first pattern as a mask to form first isolation regions in the device substrate; after performing the first implantation process, performing a second lithography process using a second pattern of a second photomask to form a second photoresist pattern on the front side of the device substrate, the second pattern being shifted from the first pattern by a distance less than the first pitch and in the first direction; performing a second implantation process using the second photoresist pattern as a mask to form second isolation regions in the device substrate and spaced apart from the first isolation regions; and forming pixels between the first and second isolation regions.Type: ApplicationFiled: April 23, 2024Publication date: August 15, 2024Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Wei-Chao CHIU, Chun-Wei CHANG, Ching-Sen KUO, Feng-Jia SHIU
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Publication number: 20240266340Abstract: A package structure and a formation method are provided. The method includes disposing a first chip structure over a carrier substrate. The first chip structure has a front-side interconnection structure facing the carrier substrate. The method also includes forming a back-side interconnection structure over the first chip structure. The first chip structure has a device portion between the back-side interconnection structure and the front-side interconnection structure. The back-side interconnection structure has stacked conductive vias. The method further includes bonding a second chip structure to the first chip structure using dielectric-to-dielectric bonding and metal-to-metal bonding.Type: ApplicationFiled: February 2, 2023Publication date: August 8, 2024Inventors: Chih-Chao CHOU, Yi-Hsun CHIU, Shang-Wen CHANG, Ching-Wei TSAI, Chih-Hao WANG
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Publication number: 20130258267Abstract: The disclosure provides a method for fabricating a mesoporous oxide hollow particle and a liquid crystal device including the same. The liquid crystal device includes: a first substrate; a second substrate; and a liquid crystal composition formed between the first substrate and the second substrate, wherein the liquid crystal composition includes a liquid crystal molecule and a mesoporous oxide hollow particle.Type: ApplicationFiled: March 14, 2013Publication date: October 3, 2013Applicant: InnoLux CorporationInventors: Ching-Chao CHANG, Kuang-Yao Lo, Hong-Ping Lin
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Patent number: 8502839Abstract: A display device includes a display panel and a driving circuit. The display panel has a pixel including red, green, blue, and white sub-pixels. The driving circuit receives a display signal and provides at least a first luminance weighting and a second luminance weighting of the red, green, blue, and white sub-pixels respectively. The display device selects one of the first luminance weighting and the second luminance weighting to drive the pixel according to the different operating modes of the display device.Type: GrantFiled: July 2, 2008Date of Patent: August 6, 2013Assignee: HannStar Display Corp.Inventors: Sheng-Pin Tseng, Ching-Chao Chang, Chien-Yung Cheng
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Patent number: 8339343Abstract: The present invention discloses a liquid crystal display (LCD) device. The LCD device comprises an upper substrate and a lower substrate. Every two data lines and two scan lines define two pixels. Each pixel comprises a pixel electrode and a transistor, and a biased electrode is arranged under a slot between two pixel electrodes of the two pixels. When positive frame, the voltage of the biased electrode, VE, is greater than the voltage the pixel electrode, VP; when negative frame, the voltage of the biased electrode, VE, is smaller than the voltage the pixel electrode, VP.Type: GrantFiled: December 30, 2008Date of Patent: December 25, 2012Assignee: Hannstar Display Corp.Inventor: Ching-Chao Chang
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Patent number: 7884791Abstract: The present invention provides an over driving circuit of a liquid crystal display is provided. The circuit comprises a buffer, a memory coupling with the buffer and a modifier coupling with the buffer, the memory and a signal line. This signal line is used to transfer a row number signal to the modifier. The modifier may generate a corrected gray level value to a pixel unit based on a gray level value of present frame from the buffer, a gray level value of previous frame from the memory and the row number signal.Type: GrantFiled: July 11, 2006Date of Patent: February 8, 2011Assignee: Hannstar Display CorporationInventors: Sheng-Pin Tseng, Ching-Chao Chang, Po-Sheng Shih
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Patent number: 7768597Abstract: A liquid crystal display is disclosed. A first substrate and a second substrate correspond to each other. A plurality of first common electrode and a second common electrode are arranged on the first substrate. A plurality of first pixel electrodes and a second pixel electrode correspond to the first common electrodes and the second common electrode separately, and each of the pixel electrodes includes a plurality of electrode portions having a width l, tilted an angle ?, and separated by a distance w. A plurality of first color units and a second color unit are arranged on the second substrate and correspond to the first pixel electrodes and the second pixel electrode separately, wherein at least one of the width l, the distance w and the angle ? in the first color units is different from that in the second color unit.Type: GrantFiled: December 14, 2006Date of Patent: August 3, 2010Assignee: Hannstar Display Corp.Inventor: Ching-Chao Chang
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Publication number: 20100085497Abstract: The present invention discloses a liquid crystal display (LCD) device. The LCD device comprises an upper substrate and a lower substrate. Every two data lines and two scan lines define two pixels. Each pixel comprises a pixel electrode and a transistor, and a biased electrode is arranged under a slot between two pixel electrodes of the two pixels. When positive frame, the voltage of the biased electrode, VE, is greater than the voltage the pixel electrode, VP; when negative frame, the voltage of the biased electrode, VE, is smaller than the voltage the pixel electrode, VP.Type: ApplicationFiled: December 30, 2008Publication date: April 8, 2010Applicant: Hannstar Display Corp.Inventor: Ching-Chao Chang
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Patent number: 7605891Abstract: A transreflective liquid crystal display comprises a plurality of pixels. Each pixel includes at least four subpixels including a white subpixel, a red subpixel, a green subpixel and a blue subpixel. Each subpixel comprises a transmissive area and a reflective area. The reflective area of the white subpixel is smaller than that of each of the R, G, and B subpixels so that the percentages of effective output light of the white subpixel and the other colored subpixels are consistent in both reflective and transmissive modes.Type: GrantFiled: June 22, 2007Date of Patent: October 20, 2009Assignee: Hannstar Display CorporationInventor: Ching Chao Chang
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Publication number: 20090135207Abstract: A display device includes a display panel and a driving circuit. The display panel has a pixel including red, green, blue, and white sub-pixels. The driving circuit receives a display signal and provides at least a first luminance weighting and a second luminance weighting of the red, green, blue, and white sub-pixels respectively. The display device selects one of the first luminance weighting and the second luminance weighting to drive the pixel according to the different operating modes of the display device.Type: ApplicationFiled: July 2, 2008Publication date: May 28, 2009Inventors: Sheng-Pin Tseng, Ching-Chao Chang, Chien-Yung Cheng
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Publication number: 20090109127Abstract: A three-dimensional image display device and a displaying method thereof. The display device includes a pixel array, a sub-pixel rendering device and a mask. The sub-pixel rendering device provides data signals to the sub-pixels to form the first frames and the second frames. The first frame and the second frame include a plurality of first pixel regions and a plurality of second pixel regions. The second pixel region and the adjacent first pixel regions have some sub-pixels in common. The mask projects the first frames and the second frames as a first image and a second image.Type: ApplicationFiled: March 25, 2008Publication date: April 30, 2009Applicant: HANNSTAR DISPLAY CORPORATIONInventors: Ching-Chao Chang, Hung-Chang Chang, Chien-Yung Cheng
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Publication number: 20080316401Abstract: A transreflective liquid crystal display comprises a plurality of pixels. Each pixel includes at least four subpixels including a white subpixel, a red subpixel, a green subpixel and a blue subpixel. Each subpixel comprises a transmissive area and a reflective area. The reflective area of the white subpixel is smaller than that of each of the R, G, and B subpixels so that the percentages of effective output light of the white subpixel and the other colored subpixels are consistent in both reflective and transmissive modes.Type: ApplicationFiled: June 22, 2007Publication date: December 25, 2008Applicant: HANNSTAR DISPLAY CORPORATIONInventor: Ching Chao Chang
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Patent number: 7400373Abstract: A liquid crystal display (LCD) panel has a structure in which one of the thin film transistor (TFT) substrate and the color filter (CF) substrate has an indented pattern surface to contact or surround the end of the spacer, such that the friction between the spacers and indented pattern surface can be reduced, thus shifting of spacer to a wrong position can be avoided. A method of manufacturing such LCD panel is also disclosed.Type: GrantFiled: May 27, 2005Date of Patent: July 15, 2008Assignee: HannStar Display Corp.Inventors: Yung-Ho Chang, Ching-Chao Chang, Chien-Feng Chen
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Publication number: 20080143897Abstract: A liquid crystal display is disclosed. A first substrate and a second substrate correspond to each other. A plurality of first common electrode and a second common electrode are arranged on the first substrate. A plurality of first pixel electrodes and a second pixel electrode correspond to the first common electrodes and the second common electrode separately, and each of the pixel electrodes includes a plurality of electrode portions having a width l, tilted an angle ?, and separated by a distance w. A plurality of first color units and a second color unit are arranged on the second substrate and correspond to the first pixel electrodes and the second pixel electrode separately, wherein at least one of the width l, the distance w and the angle ? in the first color units is different from that in the second color unit.Type: ApplicationFiled: December 14, 2006Publication date: June 19, 2008Applicant: HANNSTAR DISPLAY CORP.Inventor: Ching Chao Chang
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Publication number: 20080013126Abstract: The present invention provides an over driving circuit of a liquid crystal display is provided. The circuit comprises a buffer, a memory coupling with the buffer and a modifier coupling with the buffer, the memory and a signal line. This signal line is used to transfer a row number signal to the modifier. The modifier may generate a corrected gray level value to a pixel unit based on a gray level value of present frame from the buffer, a gray level value of previous frame from the memory and the row number signal.Type: ApplicationFiled: July 11, 2006Publication date: January 17, 2008Applicant: HANNSTAR DISPLAY CORPORATIONInventors: Sheng-Pin Tseng, Ching-Chao Chang, Po-Sheng Shih
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Publication number: 20060268214Abstract: A liquid crystal display (LCD) panel has a structure in which one of the thin film transistor (TFT) substrate and the color filter (CF) substrate has an indented pattern surface to contact or surround the end of the spacer, such that the friction between the spacers and indented pattern surface can be reduced, thus shifting of spacer to a wrong position can be avoided. A method of manufacturing such LCD panel is also disclosed.Type: ApplicationFiled: May 27, 2005Publication date: November 30, 2006Inventors: Yung-Ho Chang, Ching-Chao Chang, Chien-Feng Chen