Patents by Inventor Eric Lou

Eric Lou 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: 20240086088
    Abstract: Embodiments described herein may include apparatus, systems, techniques, and/or processes that are directed to optimizing memory frequency based on the bandwidth and latency needs of heterogeneous processing cores in a computer system. According to various embodiments, adjustments to the frequency of memory may be applied differently depending on the type of core requesting more bandwidth and/or faster response. According to various embodiments, the frequency is increased more sparingly for energy-efficient cores, while the frequency is increased more generously for high-performance cores. Additionally, when memory traffic decreases, the frequency of memory is decreased more generously when the previous request for higher frequency was from an energy-efficient core than a high-performance core. By considering the type of core that is requesting more bandwidth and/or faster response, performance and power consumption may be more optimally balanced.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 14, 2024
    Inventors: Rizwana Begum, Rohit Sharad Phatak, Eric Heit, Xiangdong Lou
  • Patent number: 7241538
    Abstract: Critically representative features (CRF's) for use in mask-making verification and/or resist development verification are defined and/or copied into the in-scribe area used by wafer CD features. The placement of mask-CRF's in the wafer CD bar region eliminates the problem of correctly and quickly locating mask-CRF's at different positions in the in-die areas of a manufactured mask. On-wafer counterparts of the mask-CRF's may be used for fine-tuning lithography and patterning processes.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: July 10, 2007
    Assignee: ProMOS Technologies
    Inventors: Feng-Hong Zhang, Limin (Eric) Lou
  • Publication number: 20070099093
    Abstract: Critically representative features (CRF's) for use in mask-making verification and/or resist development verification are defined and/or copied into the in-scribe area used by wafer CD features. The placement of mask-CRF's in the wafer CD bar region eliminates the problem of correctly and quickly locating mask-CRF's at different positions in the in-die areas of a manufactured mask. On-wafer counterparts of the mask-CRF's may be used for fine-tuning lithography and patterning processes.
    Type: Application
    Filed: December 18, 2006
    Publication date: May 3, 2007
    Inventors: Feng-Hong Zhang, Limin (Eric) Lou
  • Patent number: 6881524
    Abstract: A photoresist exposure process is disclosed which produces features which are substantially smaller than the aperture dimension of the mask used to make the feature. The smaller feature size results from a double exposure of the photoresist, combined with a double baking process to create the features in the photoresist. The double baking process thins the layer of photoresist, prior to the second exposure, thereby improving the resolution of the mark created by the second exposure on the photoresist. The process also uses a binary bias mask through which the first exposure is made, which overlaps with the area of the second exposure, to allow a process tolerance for the realignment of the mask over the wafer for the second exposure.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: April 19, 2005
    Assignee: ProMOS Technologies, Inc.
    Inventors: John Cauchi, Eric Lou
  • Publication number: 20040101790
    Abstract: A photoresist exposure process is disclosed which produces features which are substantially smaller than the aperture dimension of the mask used to make the feature. The smaller feature size results from a double exposure of the photoresist, combined with a double baking process to create the features in the photoresist. The double baking process thins the layer of photoresist, prior to the second exposure, thereby improving the resolution of the mark created by the second exposure on the photoresist. The process also uses a binary bias mask through which the first exposure is made, which overlaps with the area of the second exposure, to allow a process tolerance for the realignment of the mask over the wafer for the second exposure.
    Type: Application
    Filed: November 27, 2002
    Publication date: May 27, 2004
    Inventors: John Cauchi, Eric Lou