Patents by Inventor SHIH-YAO PAN
SHIH-YAO PAN 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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Patent number: 11841218Abstract: Herein disclosed are a surface topography measuring system and a method thereof. The method comprises the following steps: dividing a test beam into a first sub-beam, entering a reflecting mirror along a first axis, and a second sub-beam, entering an object surface along a second axis; moving the reflecting mirror for reflecting the first sub-beam at different positions on the first axis to generate N reflected beams; generating an object reflected beam, related to the second sub-beam, reflected from the object surface; generating N images, related to the N reflected beams and the object reflected beam, and each of the N images having a plurality of interference fringes; analyzing the interference fringes in each of the N images to calculate N curve formulas; calculating a surface topography of the object surface from the N curve formulas.Type: GrantFiled: July 16, 2021Date of Patent: December 12, 2023Assignee: Chroma ATE Inc.Inventors: Shih-Yao Pan, Chih-Yao Ting, Chia-Hung Lin, Hsin-Yun Chang
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Publication number: 20220208618Abstract: The present invention discloses an optical detection apparatus for defining a detection surface on a carrier unit for a wafer in a semiconductor manufacturing process so as to obtain a corresponding detection image, wherein a vertical movement path for another device to move is defined above the carrier unit. The optical detection apparatus includes a support, and an imaging device disposed on the support and configured to be non-interfering with the movement path. The imaging device includes a lens group, an image capturing portion and a moving base. With the moving base, the photosensitive element of the image capturing portion is allowed to move horizontally relative to the lens group, and the imaging position can be adjusted, preventing image deformation or a reduced resolution easily caused by capturing at an oblique angle. Thus, the optical detection apparatus resolves complications of additionally mounting an optical detection apparatus in an optical detection environment within a narrow space.Type: ApplicationFiled: December 27, 2021Publication date: June 30, 2022Inventors: SHIH-YAO PAN, HUNG-TIEN KAO
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Patent number: 11269170Abstract: A separate microscopy system, applied to observe a specimen positioned on a stage and further to image the specimen on an imaging device, includes an ocular-lens unit, an adjustment unit and an objective-lens unit. The ocular-lens unit has an ocular-lens optical axis, and is manipulated to make the ocular-lens optical axis perpendicular to the stage. The adjustment unit is assembled to a side of the ocular-lens unit close to the stage. The objective-lens unit has an objective-lens optical axis, and is assembled to a side of the adjustment unit close to the stage. The objective-lens unit is manipulated to be adjusted by the adjustment unit to make the ocular-lens optical axis, the objective-lens optical axis and the imaging device co-axially and perpendicular to the stage, such that the specimen can be imaged at an imaging center position of the imaging device. In addition, an adjusting method thereof is also provided.Type: GrantFiled: December 18, 2019Date of Patent: March 8, 2022Assignee: CHROMA ATE INC.Inventors: Shih-Yao Pan, Yu-Yen Wang, Tsung-Hsien Ou, Kuo-Wei Huang
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Publication number: 20220018656Abstract: Herein disclosed are a surface topography measuring system and a method thereof. The method comprises the following steps: dividing a test beam into a first sub-beam, entering a reflecting mirror along a first axis, and a second sub-beam, entering an object surface along a second axis; moving the reflecting mirror for reflecting the first sub-beam at different positions on the first axis to generate N reflected beams; generating an object reflected beam, related to the second sub-beam, reflected from the object surface; generating N images, related to the N reflected beams and the object reflected beam, and each of the N images having a plurality of interference fringes; analyzing the interference fringes in each of the N images to calculate N curve formulas; calculating a surface topography of the object surface from the N curve formulas.Type: ApplicationFiled: July 16, 2021Publication date: January 20, 2022Inventors: Shih-Yao PAN, Chih-Yao TING, Chia-Hung LIN, Hsin-Yun CHANG
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Publication number: 20200209603Abstract: A separate microscopy system, applied to observe a specimen positioned on a stage and further to image the specimen on an imaging device, includes an ocular-lens unit, an adjustment unit and an objective-lens unit. The ocular-lens unit has an ocular-lens optical axis, and is manipulated to make the ocular-lens optical axis perpendicular to the stage. The adjustment unit is assembled to a side of the ocular-lens unit close to the stage. The objective-lens unit has an objective-lens optical axis, and is assembled to a side of the adjustment unit close to the stage. The objective-lens unit is manipulated to be adjusted by the adjustment unit to make the ocular-lens optical axis, the objective-lens optical axis and the imaging device co-axially and perpendicular to the stage, such that the specimen can be imaged at an imaging center position of the imaging device. In addition, an adjusting method thereof is also provided.Type: ApplicationFiled: December 18, 2019Publication date: July 2, 2020Inventors: Shih-Yao PAN, Yu-Yen WANG, Tsung-Hsien OU, Kuo-Wei HUANG
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Patent number: 10436580Abstract: A surface measurement system is configured to measure a sample with a low reflectivity surface. The surface measurement system includes a condensation device and a measurement device. The condensation device is configured to form a liquid layer on the surface of the sample. The condensation device includes a chamber, a temperature controlling gas source, and a humidification gas source. The chamber is configured to accommodate the sample. The temperature controlling gas source is connected to the chamber to provide temperature controlling gases to the chamber, so as to control the temperature of the sample. The humidification gas source is connected to the chamber to provide water vapor to the chamber, so as to form the liquid layer on the surface of the sample. The measurement device includes a plate, a light source, and an image capturing device.Type: GrantFiled: November 13, 2018Date of Patent: October 8, 2019Assignee: CHROMA ATE INC.Inventors: Yi-Chang Chiu, Cheng-Ting Tsai, Shih-Yao Pan, Lan-Sheng Yang, Hsiu-Wei Kuo, Shao-En Chung
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Publication number: 20190257762Abstract: A detection device, applied to detect an object under test, includes a beam splitter, a pattern beam generator, an image-capturing device and a processor. The pattern beam generator and the image-capturing device are located to two different sides of the beam splitter in a conjugate arrangement. The pattern beam generator is to generate a preset pattern, and the preset pattern is then projected onto the object under test via the beam splitter. The image-capturing device is to capture a real pattern via the beam splitter, in which the real pattern is generated on the object under test after the preset pattern is projected onto the object under test. The processor is to compare the preset pattern and the real pattern and to further determine a quality of the object under test.Type: ApplicationFiled: January 24, 2019Publication date: August 22, 2019Inventors: Shih-Yao PAN, Szuyen LIN
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Publication number: 20190145762Abstract: A surface measurement system is configured to measure a sample with a low reflectivity surface. The surface measurement system includes a condensation device and a measurement device. The condensation device is configured to form a liquid layer on the surface of the sample. The condensation device includes a chamber, a temperature controlling gas source, and a humidification gas source. The chamber is configured to accommodate the sample. The temperature controlling gas source is connected to the chamber to provide temperature controlling gases to the chamber, so as to control the temperature of the sample. The humidification gas source is connected to the chamber to provide water vapor to the chamber, so as to form the liquid layer on the surface of the sample. The measurement device includes a plate, a light source, and an image capturing device.Type: ApplicationFiled: November 13, 2018Publication date: May 16, 2019Inventors: Yi-Chang CHIU, Cheng-Ting TSAI, Shih-Yao PAN, Lan-Sheng YANG, Hsiu-Wei KUO, Shao-En CHUNG
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Patent number: 8638445Abstract: An imaging apparatus includes a light source; a first beam splitter for reflecting a projection beam emitted by the light source; an objective lens unit including a reflection reference surface for reproducing the projection beam into a measurement beam projected onto an object to generate a first reflection beam and a reference beam projected onto the reflection reference surface to generate a second reflection beam mixing with the first reflection beam and passing through the first splitter and forming an operating beam; a second beam splitter for modulating the operating beam into first and second sub-beams; a monochrome image detection device for passage of the first sub-beam to obtain an interferometric image with monochrome from a first interference region; and an image detection device for permitting passage of the second sub-beam in order to obtain a non-interferometric image from a second interference region.Type: GrantFiled: June 20, 2011Date of Patent: January 28, 2014Assignee: Chroma Ate Inc.Inventors: Yu-Hsuan Lin, Shih-Yao Pan, Hsin-Yueh Sung, Alvin Chang, Hung-Ta Chien
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Publication number: 20110317169Abstract: An imaging apparatus includes a light source; a first beam splitter for reflecting a projection beam emitted by the light source; an objective lens unit including a reflection reference surface for reproducing the projection beam into a measurement beam projected onto an object to generate a first reflection beam and a reference beam projected onto the reflection reference surface to generate a second reflection beam mixing with the first reflection beam and passing through the first splitter and forming an operating beam; a second beam splitter for modulating the operating beam into first and second sub-beams; a monochrome image detection device for passage of the first sub-beam to obtain an interferometric image with monochrome from a first interference region; and an image detection device for permitting passage of the second sub-beam in order to obtain a non-interferometric image from a second interference region.Type: ApplicationFiled: June 20, 2011Publication date: December 29, 2011Applicant: CHROMA ATE INC.Inventors: YU-HSUAN LIN, SHIH-YAO PAN, HSIN-YUEH SUNG, ALVIN CHANG, HUNG-TA CHIEN