Patents by Inventor Ching-Hua Chang

Ching-Hua 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).

  • Publication number: 20240153842
    Abstract: A semiconductor structure includes a die embedded in a molding material, the die having die connectors on a first side; a first redistribution structure at the first side of the die, the first redistribution structure being electrically coupled to the die through the die connectors; a second redistribution structure at a second side of the die opposing the first side; and a thermally conductive material in the second redistribution structure, the die being interposed between the thermally conductive material and the first redistribution structure, the thermally conductive material extending through the second redistribution structure, and the thermally conductive material being electrically isolated.
    Type: Application
    Filed: January 4, 2024
    Publication date: May 9, 2024
    Inventors: Hao-Jan Pei, Wei-Yu Chen, Chia-Shen Cheng, Chih-Chiang Tsao, Cheng-Ting Chen, Chia-Lun Chang, Chih-Wei Lin, Hsiu-Jen Lin, Ching-Hua Hsieh, Chung-Shi Liu
  • Publication number: 20240113071
    Abstract: An integrated circuit package including electrically floating metal lines and a method of forming are provided. The integrated circuit package may include integrated circuit dies, an encapsulant around the integrated circuit dies, a redistribution structure on the encapsulant, a first electrically floating metal line disposed on the redistribution structure, a first electrical component connected to the redistribution structure, and an underfill between the first electrical component and the redistribution structure. A first opening in the underfill may expose a top surface of the first electrically floating metal line.
    Type: Application
    Filed: January 5, 2023
    Publication date: April 4, 2024
    Inventors: Chung-Shi Liu, Mao-Yen Chang, Yu-Chia Lai, Kuo-Lung Pan, Hao-Yi Tsai, Ching-Hua Hsieh, Hsiu-Jen Lin, Po-Yuan Teng, Cheng-Chieh Wu, Jen-Chun Liao
  • Publication number: 20240113032
    Abstract: Interconnect structure packages (e.g., through silicon vias (TSV) packages, through interlayer via (TIV) packages) may be pre-manufactured as opposed to forming TIVs directly on a carrier substrate during a manufacturing process for a semiconductor die package at backend packaging facility. The interconnect structure packages may be placed onto a carrier substrate during manufacturing of a semiconductor device package, and a semiconductor die package may be placed on the carrier substrate adjacent to the interconnect structure packages. A molding compound layer may be formed around and in between the interconnect structure packages and the semiconductor die package.
    Type: Application
    Filed: April 25, 2023
    Publication date: April 4, 2024
    Inventors: Kai-Fung CHANG, Chin-Wei LIANG, Sheng-Feng WENG, Ming-Yu YEN, Cheyu LIU, Hung-Chih CHEN, Yi-Yang LEI, Ching-Hua HSIEH
  • Patent number: 11942451
    Abstract: A semiconductor structure includes a functional die, a dummy die, a redistribution structure, a seal ring and an alignment mark. The dummy die is electrically isolated from the functional die. The redistribution structure is disposed over and electrically connected to the functional die. The seal ring is disposed over the dummy die. The alignment mark is between the seal ring and the redistribution structure, wherein the alignment mark is electrically isolated from the dummy die, the redistribution structure and the seal ring. The insulating layer encapsulates the functional die and the dummy die.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: March 26, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Mao-Yen Chang, Yu-Chia Lai, Cheng-Shiuan Wong, Ting Hao Kuo, Ching-Hua Hsieh, Hao-Yi Tsai, Kuo-Lung Pan, Hsiu-Jen Lin
  • Publication number: 20240099154
    Abstract: A magnetoresistive random access memory (MRAM) device includes a first array region and a second array region on a substrate, a first magnetic tunneling junction (MTJ) on the first array region, a first top electrode on the first MTJ, a second MTJ on the second array region, and a second top electrode on the second MTJ. Preferably, the first top electrode and the second top electrode include different nitrogen to titanium (N/Ti) ratios.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 21, 2024
    Applicant: UNITED MICROELECTRONICS CORP
    Inventors: Hui-Lin Wang, Si-Han Tsai, Dong-Ming Wu, Chen-Yi Weng, Ching-Hua Hsu, Ju-Chun Fan, Yi-Yu Lin, Che-Wei Chang, Po-Kai Hsu, Jing-Yin Jhang
  • Patent number: 11917923
    Abstract: A magnetoresistive random access memory (MRAM) structure, including a substrate and multiple MRAM cells on the substrate, wherein the MRAM cells are arranged in a memory region adjacent to a logic region. An ultra low-k (ULK) layer covers the MRAM cells, wherein the surface portion of ultra low-k layer is doped with fluorine, and dents are formed on the surface of ultra low-k layer at the boundaries between the memory region and the logic region.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: February 27, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hui-Lin Wang, Ching-Hua Hsu, Si-Han Tsai, Shun-Yu Huang, Chen-Yi Weng, Ju-Chun Fan, Che-Wei Chang, Yi-Yu Lin, Po-Kai Hsu, Jing-Yin Jhang, Ya-Jyuan Hung
  • Patent number: 8922711
    Abstract: The present invention provides a method and apparatus for de-interlacing video data by using a horizontal motion vector of a horizontal motion between fields. The horizontal motion regarding a target pixel of a frame is compensated if the horizontal motion vector is found to be substantially not null according to the pixels residing in the fields determined by the horizontal motion vector. This results in an upgraded quality of image after the de-interlacing process.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: December 30, 2014
    Assignee: Realtek Semiconductor Corp.
    Inventors: Ching-Hua Chang, Wen-Tsai Liao, Po-Wei Chao
  • Patent number: 8811658
    Abstract: An interpolation method, applied to image pictures, for interpolating at least one pixel into a position to be interpolated in a target image frame is disclosed. The interpolation method includes receiving a plurality of image fields having a corresponding image object, estimating a motion speed of the image object according to a distance between a first pixel position to which the image object located in a first image field of the plurality of image fields and a second pixel position to which the image object located in a second image field of the plurality of image fields, determining the pixel from the plurality of image fields according to the motion speed of the image object, and interpolating the pixel into the position to be interpolated in the target image frame.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: August 19, 2014
    Assignee: Realtek Semiconductor Corp.
    Inventors: Ching-Hua Chang, Chun-Hsing Hsieh
  • Patent number: 8508660
    Abstract: The present invention provides de-interlacing methods and related apparatuses. One of the proposed de-interlacing methods includes edge detection of a target region corresponding to a target position. When the target region is assumed to include an edge that is considered stationary, and if the target position is on a stationary side of the edge, then a pixel value for the target position is generated by inter-field interpolation.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: August 13, 2013
    Assignee: Realtek Semiconductor Corp.
    Inventors: Ching-Hua Chang, Po-Wei Chao
  • Patent number: 8165208
    Abstract: The present invention provides a video detecting device including a first pixel detector, a second pixel detector, and a determining unit. The first pixel detector compares the intensity of a target pixel of a target scan line in a first field with the intensity of first comparing pixels of scan lines corresponding to the target scan line in a second field to generate a first detection value corresponding to the target pixel. The second pixel detector compares the intensity of a reference pixel of a nearby scan line in the second field with the intensity of second comparing pixels of scan lines corresponding to the nearby scan line in the first field to generate a second detection value corresponding to the reference pixel. According to the first and second detection values, the determining unit generates a diagnostic value which helps determine sawtooth occurrences in video frames.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: April 24, 2012
    Assignee: Realtek Semiconductor Corp.
    Inventors: Ching-Hua Chang, Po-Wei Chao
  • Patent number: 8059197
    Abstract: A field balancing device for balancing the lightness/color of top fields and bottom fields of an interlaced signal includes: a detection circuit for detecting a lightness/color difference between at least one portion of at least one top field of the interlaced signal and at least one portion of at least one bottom field of the interlaced signal to generate a detection result; and a processing circuit, coupled to the detection circuit, for selectively processing at least one field of the interlaced signal according to the detection result to balance the lightness/color of top fields and bottom fields of the interlaced signal.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: November 15, 2011
    Assignee: Realtek Semiconductor Corp.
    Inventors: Po-Wei Chao, Ching-Hua Chang, Bing-Jhe Chen
  • Patent number: 7933467
    Abstract: The present invention provides an apparatus and a method for de-interlacing. The apparatus includes an edge detection module, a statistics module, and an interpolation circuit. The edge detection module performs an edge detection operation on a plurality of pixels of an image so as to generate edge information corresponding to the image. The statistics module performs a detection window based statistics operation on the edge information so as to generate statistics information corresponding to the image. The interpolation circuit interpolates the image according to the statistics information so as to generate an intra-field interpolation signal corresponding to the image.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: April 26, 2011
    Assignee: Realtek Semiconductor Corp.
    Inventors: Ching-Hua Chang, Po-Wei Chao, Wen-Tsai Liao
  • Publication number: 20080285808
    Abstract: An interpolation method, applied to image pictures, for interpolating at least one pixel into a position to be interpolated in a target image frame is disclosed. The interpolation method includes receiving a plurality of image fields having a corresponding image object, estimating a motion speed of the image object according to a distance between a first pixel position to which the image object located in a first image field of the plurality of image fields and a second pixel position to which the image object located in a second image field of the plurality of image fields, determining the pixel from the plurality of image fields according to the motion speed of the image object, and interpolating the pixel into the position to be interpolated in the target image frame.
    Type: Application
    Filed: May 14, 2008
    Publication date: November 20, 2008
    Inventors: Ching-Hua Chang, Chun-Hsing Hsieh
  • Publication number: 20080118163
    Abstract: Methods and apparatuses for motion detection are disclosed. One proposed method includes: detecting at least a field to generate a plurality of statistical values; determining at least one threshold value according to the plurality of statistical values; and performing motion detection on pixel positions of a subsequent field according to the determined threshold value.
    Type: Application
    Filed: August 27, 2007
    Publication date: May 22, 2008
    Inventors: Ching-Hua Chang, Po-Wei Chao, Hsin-Ying Ou, Wen-Tsai Liao
  • Publication number: 20080094504
    Abstract: A field balancing device for balancing the lightness/color of top fields and bottom fields of an interlaced signal includes: a detection circuit for detecting a lightness/color difference between at least one portion of at least one top field of the interlaced signal and at least one portion of at least one bottom field of the interlaced signal to generate a detection result; and a processing circuit, coupled to the detection circuit, for selectively processing at least one field of the interlaced signal according to the detection result to balance the lightness/color of top fields and bottom fields of the interlaced signal.
    Type: Application
    Filed: April 20, 2007
    Publication date: April 24, 2008
    Inventors: Po-Wei Chao, Ching-Hua Chang, Bing-Jhe Chen
  • Publication number: 20080068498
    Abstract: The present invention provides de-interlacing methods and related apparatuses. One of the proposed de-interlacing methods includes edge detection of a target region corresponding to a target position. When the target region is assumed to include an edge that is considered stationary, and if the target position is on a stationary side of the edge, then a pixel value for the target position is generated by inter-field interpolation.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 20, 2008
    Inventors: Ching-Hua Chang, Po-Wei Chao
  • Publication number: 20080055465
    Abstract: The present invention provides a method and apparatus for de-interlacing video data by using a horizontal motion vector of a horizontal motion between fields. The horizontal motion regarding a target pixel of a frame is compensated if the horizontal motion vector is found to be substantially not null according to the pixels residing in the fields determined by the horizontal motion vector. This results in an upgraded quality of image after the de-interlacing process.
    Type: Application
    Filed: August 23, 2007
    Publication date: March 6, 2008
    Inventors: Ching-Hua Chang, Wen-Tsai Liao, Po-Wei Chao
  • Publication number: 20080043142
    Abstract: The present invention provides a video detecting device including a first pixel detector, a second pixel detector, and a determining unit. The first pixel detector compares the intensity of a target pixel of a target scan line in a first field with the intensity of first comparing pixels of scan lines corresponding to the target scan line in a second field to generate a first detection value corresponding to the target pixel. The second pixel detector compares the intensity of a reference pixel of a nearby scan line in the second field with the intensity of second comparing pixels of scan lines corresponding to the nearby scan line in the first field to generate a second detection value corresponding to the reference pixel. According to the first and second detection values, the determining unit generates a diagnostic value which helps determine sawtooth occurrences in video frames.
    Type: Application
    Filed: August 14, 2007
    Publication date: February 21, 2008
    Inventors: Ching-Hua Chang, Po-Wei Chao
  • Publication number: 20070263905
    Abstract: A motion detection apparatus and related method for detecting motions between a first image and a second image are disclosed. The motion detection apparatus includes an edge detection module and a motion detection unit. The edge detection module performs an edge detecting operation on the first and second images so as to categorize a plurality of pixels in the first and second images. The motion detection unit is coupled to the edge detection module. According to the categorizing results of the pixels in the first and second images, the motion detection unit detects motion between the first and second images.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 15, 2007
    Inventors: Ching-Hua Chang, Po-Wei Chao
  • Publication number: 20070253489
    Abstract: An image processing circuit includes: a motion detector for detecting motion of an image carried by a first video signal to generate a selection signal, where regarding a pixel of the image, the motion detector generates a selection value in the selection signal, the selection value corresponding to the pixel; a field up-sampling filter for performing chroma up-sampling of the pixel on a field in a second video signal corresponding to the first video signal; a frame up-sampling filter for performing chroma up-sampling of the pixel on a frame in the second video signal; and a switching unit utilized for inputting the second video signal into one of the field up-sampling filter and the frame up-sampling filter according to the selection value to perform chroma up-sampling of the pixel.
    Type: Application
    Filed: April 24, 2007
    Publication date: November 1, 2007
    Inventors: Po-Wei Chao, Hsin-Ying Ou, Ching-Hua Chang