Patents by Inventor Yu-Hsun HSU
Yu-Hsun HSU 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: 20250147067Abstract: A probe system for double side probing includes a chuck having a through hole for a substrate including a DUT to be disposed on the chuck and defined with an edge part supported by the chuck and a central part located correspondingly to the through hole, upper and lower probe devices, including electrical and optical probe devices, disposed above and below the through hole respectively for testing the DUT on top and bottom sides of the substrate, and a support device disposed on the side of the chuck opposite to the electrical probe device. When an electrical probe of the electrical probe device contacts the top or bottom side of the substrate, a supporter of the support device contacts the other side and is located adjacent to the electrical probe with the substrate located therebetween to resist the force from the electrical probe to avoid substrate deformation.Type: ApplicationFiled: November 6, 2024Publication date: May 8, 2025Applicant: MPI CORPORATIONInventors: PO-YI TING, YU-HSUN HSU, TING-AN YEN, SEBASTIAN GIESSMANN
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Patent number: 12196808Abstract: A motorized chuck stage controlling method adapted to a wafer probing device is provided. The wafer probing device includes a control rod and a motorized chuck stage. The control rod can be moved between an upper limit position and a lower limit position, and the motorized chuck stage is moved along a Z-axis direction in response to a movement of the control rod. One purpose of the motorized chuck stage controlling method is to allow the operator to define the highest position to which the motorized chuck stage can be moved in response to the movement of the control rod, thereby preventing the probe and the wafer from colliding with each other.Type: GrantFiled: March 14, 2023Date of Patent: January 14, 2025Assignee: MPI CORPORATIONInventors: Sebastian Giessmann, Yu-Hsun Hsu
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Publication number: 20240219427Abstract: A positioning method and probe system for performing the same, a method for operating probe system, and a method for utilizing probe system to produce a tested semiconductor device are provided. The positioning method is used for positioning a plurality of probe assemblies with an under-test device including a plurality of pads, each of the probe assemblies have at least one probe tip that corresponds to each of the pads for contact, and at least one fixed probe assembly and at least one motorized probe assembly are defined among the probe assemblies during a positioning process.Type: ApplicationFiled: January 3, 2024Publication date: July 4, 2024Inventors: STOJAN KANEV, Chien-Hung Chen, Ming-Yang Liu, Yu-Hsun Hsu, Yan-Cheng Chen, Lin-Lin Chih
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Patent number: 12007319Abstract: An optical path correction subassembly, an optical detection assembly, and an optical detection system are provided. The optical path correction subassembly can be optionally configured to be applied to a light detector. The optical path correction subassembly includes a holder structure and an optical path correction structure carried by the holder structure, and the optical path correction structure has a light beam guiding surface arranged as a reverse inclination inclined relative to a vertical line. The light beam guiding surface of the optical path correction structure can be configured to effectively or accurately guide a predetermined light beam to a light receiving surface of the light detector so as to facilitate collection of the predetermined light beam. The light beam guiding surface of the optical path correction structure can be arranged at an acute angle relative to the light receiving surface of the light detector.Type: GrantFiled: November 2, 2022Date of Patent: June 11, 2024Assignee: MPI CORPORATIONInventors: Po-Yi Ting, Ting-An Yen, Yu-Hsun Hsu, Sebastian Giessmann
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Publication number: 20230314505Abstract: A motorized chuck stage controlling method adapted to a wafer probing device is provided. The wafer probing device includes a control rod and a motorized chuck stage. The control rod can be moved between an upper limit position and a lower limit position, and the motorized chuck stage is moved along a Z-axis direction in response to a movement of the control rod. One purpose of the motorized chuck stage controlling method is to allow the operator to define the highest position to which the motorized chuck stage can be moved in response to the movement of the control rod, thereby preventing the probe and the wafer from colliding with each other.Type: ApplicationFiled: March 14, 2023Publication date: October 5, 2023Applicant: MPI CorporationInventors: Sebastian Giessmann, Yu-Hsun Hsu
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Publication number: 20230147804Abstract: An optical path correction subassembly, an optical detection assembly, and an optical detection system are provided. The optical path correction subassembly can be optionally configured to be applied to a light detector. The optical path correction subassembly includes a holder structure and an optical path correction structure carried by the holder structure, and the optical path correction structure has a light beam guiding surface arranged as a reverse inclination inclined relative to a vertical line. The light beam guiding surface of the optical path correction structure can be configured to effectively or accurately guide a predetermined light beam to a light receiving surface of the light detector so as to facilitate collection of the predetermined light beam. The light beam guiding surface of the optical path correction structure can be arranged at an acute angle relative to the light receiving surface of the light detector.Type: ApplicationFiled: November 2, 2022Publication date: May 11, 2023Inventors: PO-YI TING, TING-AN YEN, YU-HSUN HSU, SEBASTIAN GIESSMANN
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Patent number: 11353501Abstract: A wafer inspection method, wherein a motorized chuck stage is controlled by a control rod to be displaced between an upper position and a lower position along Z-axis direction, to change a relative position of a wafer on the motorized chuck stage relative to a probe. The control rod is movable between an upper and an lower limit positions. The wafer inspection method includes: determining a position of the control rod based on a measurement signal; determining a first moving direction and a moving distance of the control rod based on a change of the measurement signal; generating a control signal based on the moving distance of the control rod; controlling the motorized chuck stage to be displaced along a second moving direction opposite to the first moving direction; and controlling an objective lens module to keep focusing on the wafer when the motorized chuck stage is on the move.Type: GrantFiled: November 10, 2020Date of Patent: June 7, 2022Assignee: MPI CORPORATIONInventors: Lin-Lin Chih, Chien-Hung Chen, Guan-Jhih Liou, Yu-Hsun Hsu
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Patent number: 11313883Abstract: A probe station includes a base, a adaptor, a probe holder and a probe. The adaptor has a first portion and a second portion away from the first portion towards a first direction by a first length. The first portion connects to the base. A probe holder connects to the second portion and extends towards a second direction opposite to the first direction by a second length. The probe connects to an end of the probe holder away from the second portion and extends towards the second direction by a third length. A product of a thermal coefficient of the adaptor and the first length is equal to a sum of a product of a thermal coefficient of the probe holder and the second length and a product of a thermal coefficient of the probe and the third length.Type: GrantFiled: September 10, 2020Date of Patent: April 26, 2022Assignee: MPI CORPORATIONInventors: Yu-Hsun Hsu, Jhih-Wei Fang, Sebastian Giessmann
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Patent number: 11287475Abstract: A method for compensating to a first distance between a probe tip and a device under test (DUT) after a temperature change of the DUT includes: capturing a first image having the probe and its reflected image on a reflective surface of the DUT at a first temperature; measuring a second distance between a reference point of the probe and its reflected image; changing the first temperature of the DUT to a second temperature; capturing a second image having the probe and its reflected image on the reflective surface at the second temperature; measuring a third distance between the reference point of the probe and its reflected image; dividing the difference between the third and the second distances by two to obtain a fourth distance; and determining a relative position between the probe and the DUT by the fourth distance to compensate to the first distance.Type: GrantFiled: June 3, 2020Date of Patent: March 29, 2022Assignee: MPI CORPORATIONInventors: Stojan Kanev, Yu-Hsun Hsu, Chien-Hung Chen
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Publication number: 20220074972Abstract: A probe station includes a base, a adaptor, a probe holder and a probe. The adaptor has a first portion and a second portion away from the first portion towards a first direction by a first length. The first portion connects to the base. A probe holder connects to the second portion and extends towards a second direction opposite to the first direction by a second length. The probe connects to an end of the probe holder away from the second portion and extends towards the second direction by a third length. A product of a thermal coefficient of the adaptor and the first length is equal to a sum of a product of a thermal coefficient of the probe holder and the second length and a product of a thermal coefficient of the probe and the third length.Type: ApplicationFiled: September 10, 2020Publication date: March 10, 2022Inventors: Yu-Hsun HSU, Jhih-Wei FANG, Sebastian GIESSMANN
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Publication number: 20210382108Abstract: A method for compensating to a first distance between a probe tip and a device under test (DUT) after a temperature change of the DUT includes: capturing a first image having the probe and its reflected image on a reflective surface of the DUT at a first temperature; measuring a second distance between a reference point of the probe and its reflected image; changing the first temperature of the DUT to a second temperature; capturing a second image having the probe and its reflected image on the reflective surface at the second temperature; measuring a third distance between the reference point of the probe and its reflected image; dividing the difference between the third and the second distances by two to obtain a fourth distance; and determining a relative position between the probe and the DUT by the fourth distance to compensate to the first distance.Type: ApplicationFiled: June 3, 2020Publication date: December 9, 2021Inventors: Stojan KANEV, Yu-Hsun HSU, Chien-Hung CHEN
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Patent number: 10976363Abstract: A wafer inspection method was provided. A motorized chuck stage is controlled by a control rod to be displaced between an upper position and a lower position of an adjustment range along a Z-axis direction, to change a relative position of a wafer on the motorized chuck stage relative to a probe. The control rod is movable between an upper limit position and a lower limit position in a displacement range. The wafer inspection method includes: determining a position of the control rod in the displacement range based on a measurement signal; determining a moving direction and a moving distance of the control rod based on a change of the measurement signal; generating a control signal based on the moving distance of the control rod; and controlling, based on the control signal, the motorized chuck stage and a camera stage to be displaced the same distance.Type: GrantFiled: December 7, 2018Date of Patent: April 13, 2021Assignee: MPI CORPORATIONInventors: Lin-Lin Chih, Chien-Hung Chen, Guan-Jhih Liou, Yu-Hsun Hsu
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Publication number: 20210055344Abstract: A wafer inspection method, wherein a motorized chuck stage is controlled by a control rod to be displaced between an upper position and a lower position along Z-axis direction, to change a relative position of a wafer on the motorized chuck stage relative to a probe. The control rod is movable between an upper and an lower limit positions. The wafer inspection method includes: determining a position of the control rod based on a measurement signal; determining a first moving direction and a moving distance of the control rod based on a change of the measurement signal; generating a control signal based on the moving distance of the control rod; controlling the motorized chuck stage to be displaced along a second moving direction opposite to the first moving direction; and controlling an objective lens module to keep focusing on the wafer when the motorized chuck stage is on the move.Type: ApplicationFiled: November 10, 2020Publication date: February 25, 2021Applicant: MPI CorporationInventors: Lin-Lin Chih, Chien-Hung Chen, Guan-Jhih Liou, Yu-Hsun Hsu
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Patent number: 10895587Abstract: A wafer probe station includes a first shielding box, a chuck, a stage, a second shielding box, an electronic testing instrument, a manipulator and a cable. The first shielding box has a first chamber. The chuck is located in the first chamber to hold a device under test. The stage connects to the chuck to move the chuck. The second shielding box is outside the first shielding box and forms a second chamber with the first shielding box. The first and the second shielding boxes shield against an electromagnetic field. The electronic testing instrument is inside the second chamber. The manipulator is outside the first shielding box and has a probe arm penetrating into the first chamber. The probe arm is movable by the manipulator to hold a probe to contact the device under test. The cable connects between the electronic testing instrument and the probe.Type: GrantFiled: December 26, 2018Date of Patent: January 19, 2021Assignee: MPI CorporationInventors: Yu-Hsun Hsu, Jhih-Wei Fang, Stojan Kanev, Sebastian Giessmann
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Publication number: 20200209279Abstract: A wafer probe station includes a first shielding box, a chuck, a stage, a second shielding box, an electronic testing instrument, a manipulator and a cable. The first shielding box has a first chamber. The chuck is located in the first chamber to hold a device under test. The stage connects to the chuck to move the chuck. The second shielding box is outside the first shielding box and forms a second chamber with the first shielding box. The first and the second shielding boxes shield against an electromagnetic field. The electronic testing instrument is inside the second chamber. The manipulator is outside the first shielding box and has a probe arm penetrating into the first chamber. The probe arm is movable by the manipulator to hold a probe to contact the device under test. The cable connects between the electronic testing instrument and the probe.Type: ApplicationFiled: December 26, 2018Publication date: July 2, 2020Inventors: Yu-Hsun HSU, Jhih-Wei FANG, Stojan KANEV, Sebastian GIESSMANN
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Publication number: 20190187206Abstract: A wafer inspection method was provided. A motorized chuck stage is controlled by a control rod to be displaced between an upper position and a lower position of an adjustment range along a Z-axis direction, to change a relative position of a wafer on the motorized chuck stage relative to a probe. The control rod is movable between an upper limit position and a lower limit position in a displacement range. The wafer inspection method includes: determining a position of the control rod in the displacement range based on a measurement signal; determining a moving direction and a moving distance of the control rod based on a change of the measurement signal; generating a control signal based on the moving distance of the control rod; and controlling, based on the control signal, the motorized chuck stage and a camera stage to be displaced the same distance.Type: ApplicationFiled: December 7, 2018Publication date: June 20, 2019Applicant: MPI CorporationInventors: Lin-Lin Chih, Chien-Hung Chen, Guan-Jhih Liou, Yu-Hsun Hsu
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Patent number: 10312123Abstract: A method for compensating probe misplacement and a probe apparatus are provided. The method is applicable to a probe module which includes a probe and a fixing base. The probe includes a probe body section and a probe tip section. The probe body section is fixed on the fixing base. The method includes: measuring a temperature of a probe body of the probe body section of the probe; calculating, according to the temperature of the probe body, thermal expansion amount of the probe along a length direction of the probe body section; calculating a compensation value according to the thermal expansion amount; moving the probe or a to-be-tested element according to the calculated compensation value, to align a probe tip of the probe tip section with the to-be-tested element or align the to-be-tested element with the probe tip of the probe tip section.Type: GrantFiled: January 25, 2017Date of Patent: June 4, 2019Assignee: MPI CORPORATIONInventors: Chen-Ching Chen, Yu-Hsun Hsu, Po-Yi Ting, Stojan Kanev
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Patent number: 9958477Abstract: A test machine includes a base, a testing platform, a probe platform, a control lever, a temporary positioning mechanism and a damper. The testing platform connects with the base and carries a device under test. The probe platform connects with the base and moves along a longitudinal direction. The probe platform connects with a probe. The control lever connects with the base and the probe platform which is driven by the control lever to move along the longitudinal direction. The temporary positioning mechanism connects with the control lever and temporarily holds the probe platform and the control lever at a specific position. The damper connects with the base. When a distance between the probe and the DUT is shorter than a buffering distance, the damper abuts against the control lever or the probe platform to reduce a velocity of the probe moving towards the DUT.Type: GrantFiled: March 9, 2016Date of Patent: May 1, 2018Assignee: MPI CorporationInventors: Yu-Hsun Hsu, Ban-Ban Lim
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Publication number: 20170219650Abstract: A method for compensating probe misplacement and a probe apparatus are provided. The method is applicable to a probe module which includes a probe and a fixing base. The probe includes a probe body section and a probe tip section. The probe body section is fixed on the fixing base. The method includes: measuring a temperature of a probe body of the probe body section of the probe; calculating, according to the temperature of the probe body, thermal expansion amount of the probe along a length direction of the probe body section; calculating a compensation value according to the thermal expansion amount; moving the probe or a to-be-tested element according to the calculated compensation value, to align a probe tip of the probe tip section with the to-be-tested element or align the to-be-tested element with the probe tip of the probe tip section.Type: ApplicationFiled: January 25, 2017Publication date: August 3, 2017Inventors: Chen-Ching Chen, Yu-Hsun Hsu, Po-Yi Ting, Stojan Kanev
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Publication number: 20160266168Abstract: A test machine includes a base, a testing platform, a probe platform, a control lever, a temporary positioning mechanism and a damper. The testing platform connects with the base and carries a device under test. The probe platform connects with the base and moves along a longitudinal direction. The probe platform connects with a probe. The control lever connects with the base and the probe platform which is driven by the control lever to move along the longitudinal direction. The temporary positioning mechanism connects with the control lever and temporarily holds the probe platform and the control lever at a specific position. The damper connects with the base. When a distance between the probe and the DUT is shorter than a buffering distance, the damper abuts against the control lever or the probe platform to reduce a velocity of the probe moving towards the DUT.Type: ApplicationFiled: March 9, 2016Publication date: September 15, 2016Inventors: Yu-Hsun HSU, Ban-Ban LIM