Patents by Inventor LIN-LIN CHIH
LIN-LIN CHIH 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: 20250044349Abstract: To determine whether the current temperature of a probe assembly is stable for the calibration at the auxiliary site, a wafer probe station verifies a measured air standard dataset with a predetermined signal range or verifying an estimated measurement time range with a predetermined time window. To determine whether adjusting the current temperature of a probe assembly at the wafer site is necessary, a wafer probe station verifies a measured air standard dataset with a predetermined signal range or verifying an estimated measurement time range with a predetermined time window. To determine whether the current temperature of a probe assembly is ready for testing a semiconductor device, a wafer probe station verifies a measured air standard dataset with a predetermined signal range.Type: ApplicationFiled: July 3, 2024Publication date: February 6, 2025Inventors: ANDREJ RUMIANTSEV, Ching-Ling PAI, LIN-LIN CHIH
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Publication number: 20250044350Abstract: A method of determining probing parameters for a probe system to test a DUT includes defining a SD-OD relation dataset according to the probe type of the probing assembly of the probe system and the contact pad type of the DUT, and providing the controller a skate distance value, for which the probe tip is set to skate after contacting the contact pad, or an overdrive value, for which the probing assembly and the DUT are set to be relatively moved after the probe tip contacts the contact pad, and a probe target position or a present probe position, to obtain both the skate distance value and the overdrive value and a position for positioning the probing assembly and the DUT to each other, thereby conveniently and quickly obtaining the required probing parameters for operating the probe system to test the DUT for great and consistent testing performance.Type: ApplicationFiled: July 23, 2024Publication date: February 6, 2025Applicant: MPI CORPORATIONInventors: Andrej Rumiantsev, Lin-Lin CHIH, Ching-Ling PAI
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Publication number: 20250044346Abstract: To determine whether the current temperature of a probe assembly is stable for the calibration at the auxiliary site, a wafer probe station verifies a measured air standard dataset with a predetermined signal range or verifying an estimated measurement time range with a predetermined time window. To determine whether adjusting the current temperature of a probe assembly at the wafer site is necessary, a wafer probe station verifies a measured air standard dataset with a predetermined signal range or verifying an estimated measurement time range with a predetermined time window. To determine whether the current temperature of a probe assembly is ready for testing a semiconductor device, a wafer probe station verifies a measured air standard dataset with a predetermined signal range.Type: ApplicationFiled: July 3, 2024Publication date: February 6, 2025Inventors: ANDREJ RUMIANTSEV, Ching-Ling PAI, LIN-LIN CHIH
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Publication number: 20240402238Abstract: A test system and a method for data verification for the same are provided. The test system includes a main control unit having a control host and an analyzer, and a probe assembly that includes at least one probe-head with probe tips and a cable linked to the analyzer. The probe assembly is configured to contact one of testing circuits of a calibration standard assembly via the probe tips for performing a calibration process. In the method, incident data is inputted to the calibration standard assembly for generating measured uncorrected data, and afterwards the measured uncorrected data can be verified by performing relative comparison on any two sets of the measured uncorrected data.Type: ApplicationFiled: May 31, 2023Publication date: December 5, 2024Inventors: Andrej Rumiantsev, LIN-LIN CHIH, CHING-LING PAI
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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: 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: 11144198Abstract: A control method of a touch display apparatus applicable to a probe station is provided. The probe station includes a movable element. The movable element is a chuck stage, a camera stage, a probe platen, or a positioner. The control method of a touch display apparatus includes displaying a first window and a second window on a touch display apparatus; displaying an operation interface on the first window and displaying a real-time image on the second window; and detecting a touch instruction generated on the operation interface, where the movable element moves according to the touch instruction.Type: GrantFiled: March 26, 2019Date of Patent: October 12, 2021Assignee: MPI CORPORATIONInventors: Chien-Hung Chen, Guan-Jhih Liou, Lin-Lin Chih, Stojan Kanev
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Patent number: 11036390Abstract: A display method of a display apparatus is provided. The method includes: displaying, on a touch display apparatus, a first window and a second window that overlap with each other, where the first window is smaller than the second window; displaying a first image on the first window, and displaying a second image on the second window, where the second image is an image captured by the camera module in real time; displaying the first image on the second window and displaying the second image on the first window according to the first touch instruction; and displaying the first image on the first window and displaying the second image on the second window according to the second touch instruction.Type: GrantFiled: March 12, 2019Date of Patent: June 15, 2021Assignee: MPI CORPORATIONInventors: Chien-Hung Chen, Guan-Jhih Liou, Lin-Lin Chih, Stojan Kanev
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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: 10678370Abstract: An aligning method for use in semiconductor inspection apparatus is provided. The semiconductor inspection apparatus includes a stage and a touch-control screen. The aligning method includes defining a reference direction; displaying an image of a device under test supported by the stage on the touch-control screen; detecting a first touch point and a second touch point occurred on the touch-control screen; defining a straight line according to the first touch point and the second touch point; calculating an included angle defined by the straight and the reference direction; and rotating the stage according to the included angle.Type: GrantFiled: August 17, 2018Date of Patent: June 9, 2020Assignee: MPI CORPORATIONInventors: Lin-Lin Chih, Guan-Jhih Liou, Chien-Hung Chen, Yung-Chin Liu
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Publication number: 20190361074Abstract: A display method of a display apparatus is provided. The method includes: displaying, on a touch display apparatus, a first window and a second window that overlap with each other, where the first window is smaller than the second window; displaying a first image on the first window, and displaying a second image on the second window, where the second image is an image captured by the camera module in real time; displaying the first image on the second window and displaying the second image on the first window according to the first touch instruction; and displaying the first image on the first window and displaying the second image on the second window according to the second touch instruction.Type: ApplicationFiled: March 12, 2019Publication date: November 28, 2019Applicant: MPI CorporationInventors: Chien-Hung Chen, Guan-Jhih Liou, Lin-Lin Chih, Stojan Kanev
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Publication number: 20190361603Abstract: A control method of a touch display apparatus applicable to a probe station is provided. The probe station includes a movable element. The movable element is a chuck stage, a camera stage, a probe platen, or a positioner. The control method of a touch display apparatus includes displaying a first window and a second window on a touch display apparatus; displaying an operation interface on the first window and displaying a real-time image on the second window; and detecting a touch instruction generated on the operation interface, where the movable element moves according to the touch instruction.Type: ApplicationFiled: March 26, 2019Publication date: November 28, 2019Applicant: MPI CorporationInventors: Chien-Hung Chen, Guan-Jhih Liou, Lin-Lin Chih, Stojan Kanev
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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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Publication number: 20190171328Abstract: An aligning method for use in semiconductor inspection apparatus is provided. The semiconductor inspection apparatus includes a stage and a touch-control screen. The aligning method includes defining a reference direction; displaying an image of a device under test supported by the stage on the touch-control screen; detecting a first touch point and a second touch point occurred on the touch-control screen; defining a straight line according to the first touch point and the second touch point; calculating an included angle defined by the straight and the reference direction; and rotating the stage according to the included angle.Type: ApplicationFiled: August 17, 2018Publication date: June 6, 2019Applicant: MPI CorporationInventors: Lin-Lin Chih, Guan-Jhih Liou, Chien-Hung Chen, Yung-Chin Liu
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Patent number: 10096505Abstract: A wafer cassette includes a case, a plurality of wafer trays, and a plurality of transmission mechanisms. The wafer trays are disposed in the case. Each of the wafer trays includes a central opening, a first groove, and a second groove. The diameter of the second groove is greater than that of the first groove. A bottom surface of the second groove is higher than that of the first groove. The first and second grooves surround the central opening. Each of the transmission mechanisms is connected to the corresponding wafer tray to move the wafer tray between a pick-up position and a received position. Since the wafer tray has grooves with different diameters, the wafer tray is capable of receiving wafers with different sizes.Type: GrantFiled: January 25, 2017Date of Patent: October 9, 2018Assignee: MPI CORPORATIONInventors: Lin-Lin Chih, Chien-Hung Chen, Cheng-Rong Yang, Stojan Kanev
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Publication number: 20170221733Abstract: A wafer cassette includes a case, a plurality of wafer trays, and a plurality of transmission mechanisms. The wafer trays are disposed in the case. Each of the wafer trays includes a central opening, a first groove, and a second groove. The diameter of the second groove is greater than that of the first groove. A bottom surface of the second groove is higher than that of the first groove. The first and second grooves surround the central opening. Each of the transmission mechanisms is connected to the corresponding wafer tray to move the wafer tray between a pick-up position and a received position. Since the wafer tray has grooves with different diameters, the wafer tray is capable of receiving wafers with different sizes.Type: ApplicationFiled: January 25, 2017Publication date: August 3, 2017Inventors: LIN-LIN CHIH, Chien-Hung Chen, Cheng-Rong Yang, Stojan Kanev
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Patent number: D922396Type: GrantFiled: June 6, 2018Date of Patent: June 15, 2021Assignee: MPI CORPORATIONInventors: Lin-Lin Chih, Guan-Jhih Liou, Chien-Hung Chen, Yung-Chin Liu