Patents by Inventor Stojan Kanev
Stojan Kanev 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: 20230059740Abstract: A probe system and a machine apparatus thereof are provided. The machine apparatus can be configured for optionally carrying at least one probe assembly. The machine apparatus includes a temperature control carrier module, a machine frame structure and a temperature shielding structure. The temperature control carrier module can be configured for carrying at least one predetermined object. The machine frame structure can be configured for partially covering the temperature control carrier module, and the machine frame structure has a frame opening for exposing the temperature control carrier module. The temperature shielding structure can be disposed on the machine frame structure for partially covering the frame opening, and the temperature shielding structure has a detection opening for exposing the at least one predetermined object. The temperature shielding structure has a gas guiding channel formed thereinside for allowing a predetermined gas in the gas guiding channel.Type: ApplicationFiled: August 16, 2022Publication date: February 23, 2023Inventors: STOJAN KANEV, MEI-TING LU, 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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Patent number: 11262401Abstract: A wafer probe station includes a thermal chuck, a chuck stage, a platen, some probes, a first focusing device, a second focusing device and a thermal plate. The thermal chuck heats up to an operational temperature and holds a device under test (DUT). The chuck stage connects with the thermal chuck and moves the thermal chuck. The thermal chuck locates between the chuck stage and the platen. The probes are disposed on the platen and configured to contact with the DUT. The first focusing device is disposed on the platen to focus on the DUT. The second focusing device is disposed on the chuck stage to focus on the probes. The thermal plate locates between the second focusing device and the platen and is configured to heat up to the operational temperature. The thermal plate has a through hole aligning with the second focusing device.Type: GrantFiled: April 22, 2020Date of Patent: March 1, 2022Assignee: MPI CorporationInventors: Stojan Kanev, Chia-Hung Hung
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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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Publication number: 20210333322Abstract: A wafer probe station includes a thermal chuck, a chuck stage, a platen, some probes, a first focusing device, a second focusing device and a thermal plate. The thermal chuck heats up to an operational temperature and holds a device under test (DUT). The chuck stage connects with the thermal chuck and moves the thermal chuck. The thermal chuck locates between the chuck stage and the platen. The probes are disposed on the platen and configured to contact with the DUT. The first focusing device is disposed on the platen to focus on the DUT. The second focusing device is disposed on the chuck stage to focus on the probes. The thermal plate locates between the second focusing device and the platen and is configured to heat up to the operational temperature. The thermal plate has a through hole aligning with the second focusing device.Type: ApplicationFiled: April 22, 2020Publication date: October 28, 2021Inventors: Stojan KANEV, Chia-Hung HUNG
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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: 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: 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: 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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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: 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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Patent number: 10048844Abstract: The instant disclosure provides an operating method of inspecting equipment, with the method applicable to semiconductor inspecting equipment having a movable element. The method includes: displaying a wafer graphic by a touch display; detecting a touch signal generated by the touch display; detecting the magnification of the wafer graphic when the touch signal is generated; and determining the moving speed of the movable element based on the magnification of the wafer graphic when the touch signal is generated. In addition, the moving direction of the movable element can be determined according to the touch signal. Through the instant disclosure, the operator can more intuitively operate each movable element of semiconductor inspecting equipment.Type: GrantFiled: January 15, 2016Date of Patent: August 14, 2018Assignee: MPI CORPORATIONInventors: Stojan Kanev, Yung-Chin Liu, Andrej Rumiantsev, Yao-Chuan Chiang
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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: 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: 9632108Abstract: A method and an apparatus for verifying or testing test substrates, i.e. wafers and other electronic semiconductor components, in a prober under defined thermal conditions. Such a verifying apparatus, known to the person skilled in the art as a prober, has a housing having at least two housing sections, in one housing section of which, designated hereinafter as test chamber, the test substrate to be verified is held by a chuck and is set to a defined temperature, and in the other housing section of which, designated hereinafter as probe chamber, probes are held. For verification purposes, the test substrate and the probes are positioned relative to one another by means of at least one positioning device and the probes subsequently make contact with the test substrate.Type: GrantFiled: April 2, 2014Date of Patent: April 25, 2017Assignee: HSBC Bank USA, National AssociationInventors: Michael Teich, Stojan Kanev, Hans-Jurgen Fleischer
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Publication number: 20170018068Abstract: A probe device includes a case, a fixing base, a probe stage, a first camera and a first mirror. The case includes a bottom plate and a first side wall, which includes a first through hole and is vertically connected to the bottom plate. The fixing base, disposed inside the case, can move along a Z-axis direction. The probe stage, disposed inside the case, is used to carry a probe having a probe tip. The first camera is disposed outside the case and fixed to the first side wall. The first mirror is disposed relative to the first camera with a first angle formed between a surface of the first mirror and the normal line of the first camera. The first mirror can move along the Z-axis direction so that the first camera captures images of the probe tip through the first through hole via the first mirror.Type: ApplicationFiled: March 7, 2016Publication date: January 19, 2017Inventors: Stojan Kanev, Chia-hung Hung, PING-YU HU, YAO-CHUAN CHIANG
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Publication number: 20160210028Abstract: The instant disclosure provides an operating method of inspecting equipment, with the method applicable to semiconductor inspecting equipment having a movable element. The method includes: displaying a wafer graphic by a touch display; detecting a touch signal generated by the touch display; detecting the magnification of the wafer graphic when the touch signal is generated; and determining the moving speed of the movable element based on the magnification of the wafer graphic when the touch signal is generated. In addition, the moving direction of the movable element can be determined according to the touch signal. Through the instant disclosure, the operator can more intuitively operate each movable element of semiconductor inspecting equipment.Type: ApplicationFiled: January 15, 2016Publication date: July 21, 2016Inventors: Stojan Kanev, Yung-Chin Liu, Andrej Rumiantsev, YAO-CHUAN CHIANG
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Patent number: 9395411Abstract: In a method and a device for testing a test substrate under defined thermal conditions, a substrate that is to be tested is held by a temperature-controllable chuck and is set to a defined temperature; the test substrate is positioned relative to test probes by at least one positioning device; and the test probes make contact with the test substrate for testing purposes. At least one component of the positioning device that is present in the vicinity of the temperature-controlled test substrate is set to a temperature that is independent of the temperature of the test substrate by a temperature-controlling device, and this temperature is held constant.Type: GrantFiled: July 29, 2013Date of Patent: July 19, 2016Assignee: CASCADE MICROTECH, INC.Inventors: Joerg Kiesewetter, Stojan Kanev, Michael Teich, Karsten Stoll, Axel Schmidt