Patents by Inventor PO-HAO KUO
PO-HAO KUO 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: 20240126174Abstract: A method includes the following steps. A photoresist is exposed to a first light-exposure through a first mask, wherein the first mask includes a first stitching region, and a first portion of the photoresist corresponding to a first opaque portion of the first stitching region is unexposed. The photoresist is exposed to a second light-exposure through a second mask, wherein the second mask includes a second stitching region, and a second portion of the photoresist corresponding to a second opaque portion of the second stitching region is unexposed and is overlapping with the first portion of the photoresist.Type: ApplicationFiled: December 28, 2023Publication date: April 18, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Meng-Che Tu, Po-Han Wang, Sih-Hao Liao, Yu-Hsiang Hu, Hung-Jui Kuo
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Publication number: 20240121523Abstract: A light-adjusting device having first regions and second regions is provided. The light-adjusting device includes pillars that form several groups of meta structures. The groups of meta structures correspond to the first regions, and from a top view, the first regions and the second regions are arranged in a checkerboard pattern.Type: ApplicationFiled: October 7, 2022Publication date: April 11, 2024Inventors: Kai-Hao CHANG, Chun-Yuan WANG, Shin-Hong KUO, Zong-Ru TU, Po-Hsiang WANG, Chih-Ming WANG
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Publication number: 20240113089Abstract: A semiconductor package and a manufacturing method thereof are provided. The semiconductor package includes a die, an underfill layer, a patterned dielectric layer and a plurality of conductive terminals. The die has a front surface and a back surface opposite to the front surface. The underfill layer encapsulates the die, wherein a surface of the underfill layer and the back surface of the die are substantially coplanar to one another. The patterned dielectric layer is disposed on the back surface of the die. The conductive terminals are disposed on and in contact with a surface of the patterned dielectric layer and partially embedded in the patterned dielectric layer to be in contact with the die, wherein a portion of the surface of the patterned dielectric layer that directly under each of the conductive terminals is substantially parallel with the back surface of the die.Type: ApplicationFiled: January 10, 2023Publication date: April 4, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Tian Hu, Po-Han Wang, Sih-Hao Liao, Yu-Hsiang Hu, Hung-Jui Kuo
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Patent number: 11942417Abstract: A device includes a sensor die having a sensing region at a top surface of the sensor die, an encapsulant at least laterally encapsulating the sensor die, a conductive via extending through the encapsulant, and a front-side redistribution structure on the encapsulant and on the top surface of the sensor die, wherein the front-side redistribution structure is connected to the conductive via and the sensor die, wherein an opening in the front-side redistribution structure exposes the sensing region of the sensor die, and wherein the front-side redistribution structure includes a first dielectric layer extending over the encapsulant and the top surface of the sensor die, a metallization pattern on the first dielectric layer, and a second dielectric layer extending over the metallization pattern and the first dielectric layer.Type: GrantFiled: May 4, 2020Date of Patent: March 26, 2024Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Yung-Chi Chu, Sih-Hao Liao, Po-Han Wang, Yu-Hsiang Hu, Hung-Jui Kuo
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Patent number: 9317157Abstract: A clustered scan method of a capacitive touch device has steps of simultaneously providing driving signals in one driving cycle to multiple driving lines including the (i?j)th drive line to the (i+k)th drive line, and simultaneously providing driving signals in a next driving cycle to the drive lines including some of the drive lines driven in the previous driving cycle with a sum of the driving signal in each driving cycle greater than zero. When the stimulated drive lines include a bordering drive line, the driving lines are determined according to a relationship among i, j and k. Accordingly, the signal to noise ratio of the touch device can be increased and the adverse effect for common ground occurring between a measuring system and a human body can be reduced so that the multi-finger positioning issue can be resolved.Type: GrantFiled: May 22, 2014Date of Patent: April 19, 2016Assignee: ELAN MICROELECTRONICS CORPORATIONInventors: Tsz-Hsuan Chao, Yi-Shiang Lu, Chia-Hsing Lin, Po-Hao Kuo, Yi-Shu Li
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Publication number: 20150234521Abstract: A clustered scan method of a capacitive touch device has steps of simultaneously providing driving signals in one driving cycle to multiple driving lines including the (i?j)th drive line to the (i+k)th drive line, and simultaneously providing driving signals in a next driving cycle to the drive lines including some of the drive lines driven in the previous driving cycle with a sum of the driving signal in each driving cycle greater than zero. When the stimulated drive lines include a bordering drive line, the driving lines are determined according to a relationship among i, j and k. Accordingly, the signal to noise ratio of the touch device can be increased and the adverse effect for common ground occurring between a measuring system and a human body can be reduced so that the multi-finger positioning issue can be resolved.Type: ApplicationFiled: May 22, 2014Publication date: August 20, 2015Inventors: Tsz-Hsuan CHAO, Yi-Shiang LU, Chia-Hsing LIN, Po-Hao KUO, Yi-Shu LI
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Patent number: 8896570Abstract: A detecting method for a touch device, the method includes the steps of reading all sensed values of a frame associated with the touch device, computing a difference between a maximum sensed value and a minimum sensed value of all the sensed values of the frame, comparing the difference with a base value to generate a comparison result and executing a corresponding operation based on the comparison result.Type: GrantFiled: March 15, 2013Date of Patent: November 25, 2014Assignee: Elan Microelectronics Corp.Inventors: Ching-Ting Chiu, Po-Hao Kuo, Chia-Hsing Lin
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Patent number: 8866794Abstract: For a capacitive touch device having a capacitive touch sensor to be sensed to generate sensed values, a sensing apparatus and method statistically analyze the sensed values generated in a certain time period to evaluate the sensing quality thereof, discard the poor reliable sensed values, and re-sense the capacitive touch sensor to generate new sensed values, by which the resultant output signal will have improved reliability.Type: GrantFiled: August 6, 2012Date of Patent: October 21, 2014Assignee: Elan Microelectronics CorporationInventors: Chia-Hsing Lin, Po-Hao Kuo, Yi-Hsin Tao
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Publication number: 20140160060Abstract: A detecting method for a touch device, the method includes the steps of reading all sensed values of a frame associated with the touch device, computing a difference between a maximum sensed value and a minimum sensed value of all the sensed values of the frame, comparing the difference with a base value to generate a comparison result and executing a corresponding operation based on the comparison result.Type: ApplicationFiled: March 15, 2013Publication date: June 12, 2014Applicant: ELAN MICROELECTRONICS CORPORATIONInventors: Ching-Ting CHIU, Po-Hao KUO, Chia-Hsing LIN
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Patent number: 8619056Abstract: Ghost resolution sensing methods are provided for capacitive touch panels. When ghost is detected involving two points on a capacitive touch panel, for each of the two points, the intersected traces at that one are concurrently charged to sense the capacitance value from either one of the intersected traces, and according thereto, a real point and a ghost point can be distinguished from each other. Alternatively, the intersected traces are crisscross driven by two synchronous and in phase signals or synchronous but out of phase signals, to sense the capacitance values at the two points. Preferably, intersectional calibration is performed in conjunction therewith, to recognize the real points.Type: GrantFiled: December 30, 2009Date of Patent: December 31, 2013Assignee: Elan Microelectronics Corp.Inventors: Chia-Hsing Lin, Yi-Hsin Tao, Po-Hao Kuo, Hsin-Shieh Tsai, Min-Jhih Lin
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Publication number: 20130249852Abstract: For a capacitive touch device having a capacitive touch sensor to be sensed to generate sensed values, a sensing apparatus and method statistically analyze the sensed values generated in a certain time period to evaluate the sensing quality thereof, discard the poor reliable sensed values, and re-sense the capacitive touch sensor to generate new sensed values, by which the resultant output signal will have improved reliability.Type: ApplicationFiled: August 6, 2012Publication date: September 26, 2013Inventors: Chia-Hsing LIN, Po-Hao Kuo, Yi-Hsin Tao
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Publication number: 20100188364Abstract: Ghost resolution sensing methods are provided for capacitive touch panels. When ghost is detected involving two points on a capacitive touch panel, for each of the two points, the intersected traces at that one are concurrently charged to sense the capacitance value from either one of the intersected traces, and according thereto, a real point and a ghost point can be distinguished from each other. Alternatively, the intersected traces are crisscross driven by two synchronous and in phase signals or synchronous but out of phase signals, to sense the capacitance values at the two points. Preferably, intersectional calibration is performed in conjunction therewith, to recognize the real points.Type: ApplicationFiled: December 30, 2009Publication date: July 29, 2010Applicant: ELAN MICROELECTRONICS CORPORATIONInventors: CHIA-HSING LIN, YI-HSIN TAO, PO-HAO KUO, HSIN-SHIEH TSAI, MIN-JHIH LIN