Patents Assigned to MPI Corporation
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Patent number: 9341648Abstract: The probe card includes a substrate, at least two IC boards, and a plurality of probe pads. The IC boards are located on the substrate, and a predetermined distance is formed between the IC boards. Each of the IC boards has a plurality of lead connection points. The probe pads are plated on the IC boards, and are respectively connected to the lead connection points to cover the lead connection points. A probe area is surrounded by the probe pads on each of the IC boards. The probe pads are used to abut against plural probes.Type: GrantFiled: August 22, 2013Date of Patent: May 17, 2016Assignee: MPI CorporationInventors: Chung-Tse Lee, Chien-Chou Wu, Tsung-Yi Chen, Ming-Chi Chen
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Patent number: 9244018Abstract: A probe holding structure includes a substrate and a plurality of holding modules. The substrate has an opening and a plurality of grooves arranged around a periphery of the opening. The holding modules are connected with the grooves, respectively. Each holding modules includes a fixing member and a plurality of probes. The fixing member is connected with a corresponding groove. The probes are connected with the fixing member and pass through the corresponding groove. The probe holding structure is combined with a lens adjusting mechanism having a lens to form an optical inspection device for testing electric characteristics of chips.Type: GrantFiled: July 12, 2013Date of Patent: January 26, 2016Assignee: MPI CorporationInventors: Chia-Tai Chang, Chin-Yi Tsai, Chiu-Kuei Chen, Chen-Chih Yu, Chien-Chang Lai, Chin-Tien Yang, Hui-Pin Yang, Keng-Shieng Chang, Yun-Ru Huang
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Patent number: 9110130Abstract: A probe head of vertical probe card and a manufacturing method of a composite board thereof are provided. The probe head includes guide plate, composite board, and probe pin. The composite board includes first board layer and second board layer which are laminated together by joining operation. The composite board further includes through hole which is made by drilling and passed all the way through the first board layer and the second board layer. The friction coefficient of the first board layer is less than that of the second board layer, and the thermal expansion coefficient of the second board layer is less than that of the first board layer. The probe pin is penetrated all the way through the through hole of the composite board. By this, friction between the probe pin and composite board is reduced so as to stabilize the position of the probe pin.Type: GrantFiled: July 8, 2011Date of Patent: August 18, 2015Assignee: MPI CorporationInventors: Ming-Chi Chen, Horng-Kuang Fan, Mao-Fa Shen, Ming-Chu Chueh, Bang-Shun Liu, Che-Wei Lin
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Publication number: 20150204581Abstract: A heating device includes a housing having a flow channel, a heater disposed in the flow channel, an optical rod, a light guider and a photodetector. The optical rod has a transparent body, a first end portion, and a second end portion located inside the housing. The light guider is provided at the second end portion for guiding lights emitted by the heater toward the first end portion. The photodetector is located around the first end portion and faces the second end portion for indirectly receiving the lights emitted by the heater to the light guider through the transparent body. The temperature of the heater can be measured efficiently and timely by using the photodetector having a high responding speed, such that an overheat or damage of the heater can be prevented by controlling the heater based on the measured temperature.Type: ApplicationFiled: January 21, 2014Publication date: July 23, 2015Applicant: MPI CorporationInventors: Helge Jacob KRYSTAD, Yueh-Ying LEE, Ying-Chiao CHANG
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Patent number: 9063171Abstract: A probing apparatus includes a rotating device having a plurality of platforms for supporting DUTs, a probe device having a lifting stage movable between first and second positions, and a heating device mounted to the lifting stage so as to move along with it. The platforms are synchronously revolvable in a way that the platforms move to a test position sequentially The heating device is configured in a manner that when the lifting stage moves to the first position, the heating device is located away from the platform at the test position, and when the lifting stage moves to the second position, the heating device contacts and heats the platform at the test position. Therefore, the heating device and the probe device are movable simultaneously for heating up the platform and testing the DUT respectively.Type: GrantFiled: March 15, 2013Date of Patent: June 23, 2015Assignee: MPI CorporationInventors: Hsiu-Wei Lin, Yu-Che Cheng, Hung-Yi Lin
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Patent number: 9000794Abstract: An elastic micro high frequency probe includes a conductor, which includes a stationary body and a movable body. The stationary body has a conductive terminal, a contacting end, and a guider. The movable body has a conductive terminal, a spring mechanism, and a guider. The spring mechanism is connected to the stationary body and to one conductive terminal. The second guider connects to the spring mechanism in such a manner that the compression direction of the spring mechanism is confined by a guiding rail. Since the width of the spring mechanism is not limited by the first and second guiders, the width of the spring mechanism can be enlarged to maximize within limited space. Therefore, the HF probe as a whole can have shortest length while acquiring the predetermined total length of the elastic stroke, such that the transmission performance of the high frequency signals can be effectively enhanced.Type: GrantFiled: May 22, 2012Date of Patent: April 7, 2015Assignee: MPI CorporationInventors: Yi-Lung Lee, Chih-Chung Chen, Tsung-Yi Chen, Horng-Kuang Fan
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Patent number: 8933719Abstract: A combined probe head being disposed in a space transformer of a vertical probe card is provided, in which the combined probe head is used for differentiating or segmenting a layout area of the probes in the vertical probe card. The combined probe head may include a locating plate and sub-probe heads. The locating plate may include fixed portions. Each sub-probe head may include corresponding sub-dies and probes inserted between the sub-dies, and each sub-probe head is assembled and fixed in the corresponding fixed portion. Therefore, the layout area of the probes in the vertical probe card can be respectively differentiated or segmented from the sub-probe heads in order to avoid mutual interference under repair process. In addition, a related method for assembling and aligning the above mentioned combined probe head is provided.Type: GrantFiled: July 25, 2011Date of Patent: January 13, 2015Assignee: MPI CorporationInventors: Chao-Ching Huang, Wen-Chi Chen, Chiu-Chu Chang
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Patent number: 8884640Abstract: An integrated high-speed probe system is provided. The integrated high-speed probe system includes a circuit substrate for transmitting low-frequency testing signals from a tester through a first probe of the probe assembly to a DUT, and a high-speed substrate for transmitting high-frequency testing signals from the tester to the DUT. The high-speed substrate extends from the upper surface of the circuit substrate in the testing area to the lower surface of the circuit substrate in the probe area for being adjacent to the probe assembly and electrically connecting the second probe. In this way, the tester can transmit testing signals of different frequencies through the integrated high-speed probe system.Type: GrantFiled: April 18, 2012Date of Patent: November 11, 2014Assignee: MPI CorporationInventors: Chun-Chi Wang, Chia-Tai Chang, Ya-Yun Cheng, Wei-Cheng Ku, Chao-Ping Hsieh
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Patent number: 8816713Abstract: A probe card for high-frequency signal transmission includes a circuit board with transmission lines, a plurality of probes, and a signal path adjuster having first lead wires with a same length respectively connected between the transmission lines and the probes. Each first lead wire is selectively replaceable by a second lead having a length different from that of the first lead wire. As a result, a first high-frequency signal transmitting from one transmission line through the associated first lead wire to the associated probe and a second high-frequency signal transmitting from another transmission line through the associated second lead wire to the associated probe may have a same output timing when the first and second high-frequency signals are synchronously inputted into the circuit board.Type: GrantFiled: July 20, 2012Date of Patent: August 26, 2014Assignee: MPI CorporationInventors: Wei-Cheng Ku, Chih-Hao Ho, Chen-Kuo Kao, Chao-Ping Hsieh
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Publication number: 20140210505Abstract: A wafer testing probe card includes a printed circuit board, a flexible circuit board, an elastic piece, and a probe unit. The flexible circuit board is electrically connected to the printed circuit board. The elastic piece is disposed between the printed circuit board and the flexible circuit board. The probe unit includes a probe head and a plurality of probes. The probe head is fixed on the printed circuit board and has a plurality of through holes. The probes respectively pass through the through holes and move up and down relative to the probe head.Type: ApplicationFiled: January 24, 2014Publication date: July 31, 2014Applicant: MPI CorporationInventors: Ming-Chi CHEN, Tien-Chia LI, Dai-Jin YEH, Tsung-Yi CHEN, Chien-Kuei WANG
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Publication number: 20140203834Abstract: A probe module includes a substrate having a through hole, and at least four probe-needle rows arranged on the substrate. The probe-needle rows are arranged from a first side to a second side along a first direction. Each of the probe-needle rows has at least two needles arranged along a second direction. Each of the needles has a contact segment and an arm segment having an included angle with the contact segment. An end of the arm segment is connected to the substrate, and the other end of which extends toward the through hole to connect the contact segment. The lengths of the contact segments of the needles of each of the probe-needle rows are the same. The included angles of the needles of the probe-needle rows along the first direction are gradually increased from the first side to the second side.Type: ApplicationFiled: September 17, 2013Publication date: July 24, 2014Applicant: MPI CorporationInventor: Chia-Tai CHANG
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Publication number: 20140197859Abstract: A probe head includes a plate, a probe, and at least one composite coating layer. The plate has at least one through hole therein. The probe is at least partially disposed in the through hole of the plate. The composite coating layer includes a metal layer and a plurality of lubricating particles. The metal layer is disposed in the through hole of the plate and between the plate and the probe. The lubricating particles are dispersed in the metal layer.Type: ApplicationFiled: January 8, 2014Publication date: July 17, 2014Applicant: MPI CorporationInventors: Horng- Kuang FAN, Hsien-Ta HSU
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Publication number: 20140077833Abstract: A probe card for being abutted against a plurality of probes is provided. The probe card includes a substrate, at least two IC boards, and a plurality of probe pads. The IC boards are located on the substrate, and a predetermined distance is formed between the IC boards. Each of the IC boards has a plurality of lead connection points. The probe pads are plated on the IC boards, and are respectively connected to the lead connection points to cover the lead connection points. A probe area is surrounded by the probe pads on each of the IC boards. The probe pads are used to abut against the probes. In addition, a method of manufacturing the probe card is provided.Type: ApplicationFiled: August 22, 2013Publication date: March 20, 2014Applicant: MPI CorporationInventors: Chung-Tse LEE, Chien-Chou WU, Tsung-Yi CHEN, Ming-Chi CHEN
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Patent number: 8638116Abstract: A probe card having a configurable structure for exchanging/swapping electronic components for impedance matching and an impedance method therefore are provided. In the probe card, an applied force is exerted on the electronic component so as to make the electronic component electrically connected with at least one conductive contact pad of a supporting unit. The supporting unit is a circuit board or a space transformer. In order to facilitate the exchange or swap of the electronic component, the applied force can be removed. The probe card includes a pressing plate which can be moved between a pressing position and a non-pressing position. The pressing plate has a pressing surface which is contacted with the top end of the electronic component while the pressing plate is in the pressing position. Therefore, the applied force can be generated or removed by changing the positioning of the pressing plate.Type: GrantFiled: March 10, 2011Date of Patent: January 28, 2014Assignee: MPI CorporationInventors: Chao-Ching Huang, Chih-Hao Ho, Wei-Cheng Ku
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Patent number: 8542027Abstract: A probe card is provided. The probe card can serialize, analogize and divide a digital signal by a analog-to-digital converter (ADC), a digital-to-analog converter (DAC), and a power divided unit respectively. The probe card can increase signal channels, and is not restricted by signal channels of a tester to test more DUTs simultaneously. Moreover, the probe card has fine impedance matching and channels separating to raise testing efficiency and reduce signal loss.Type: GrantFiled: March 17, 2010Date of Patent: September 24, 2013Assignee: MPI CorporationInventors: Young-Huang Chou, Wei-Cheng Ku, Wen-Pin Su, Jun-Liang Lai, Chao-Ping Hsieh, Ping-Hsiao Liao
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Publication number: 20130069686Abstract: A probing device and manufacturing method thereof are provided. The manufacturing method includes first disposing a plurality of space transformers on a reinforcing plate and the space transformer includes several first pads. Then, the space transformer is fixed on the reinforcing plate. Thereafter, photoresist films having a plurality of openings is formed on the space transformer. The first pads are disposed in the openings. After that, a metal layer is formed and covered on the first pad. Later, the photoresist film is removed and the metal layer is planarized to form a second pad. Afterwards, the reinforcing plate is electrically connected with a PCB. Thereafter, a probe head having a plurality of probing area is provided and each probing area is corresponding to one of the space transformer. The probes in the probing area are electrically connected with the internal circuitry of the space transformer.Type: ApplicationFiled: September 13, 2012Publication date: March 21, 2013Applicant: MPI corporationInventors: Chien-Chou Wu, Ming-Chi Chen, Chung-Che Li
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Patent number: 8106673Abstract: A probe for high frequency signal transmission includes a metal pin, and a metal line spacedly arranged on and electrically insulated from the metal pin and electrically connected to grounding potential so as to maintain the characteristic impedance of the probe upon transmitting high frequency signal. The maximum diameter of the probe is substantially equal to or smaller than two times of the diameter of the metal pin. Under this circumstance, a big amount of probes can be installed in a probe card for probing a big amount of electronic devices, so that a wafer-level electronic test can be achieved efficiently and rapidly.Type: GrantFiled: May 26, 2010Date of Patent: January 31, 2012Assignee: MPI CorporationInventors: Wei-Cheng Ku, Chih-Hao Ho, Chia-Tai Chang, Ho-Hui Lin, Chien-Ho Lin
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Patent number: 7791359Abstract: A probe for high frequency signal transmission includes a metal pin, and a metal line spacedly arranged on and electrically insulated from the metal pin and electrically connected to grounding potential so as to maintain the characteristic impedance of the probe upon transmitting high frequency signal. The maximum diameter of the probe is substantially equal to or smaller than two times of the diameter of the metal pin. Under this circumstance, a big amount of probes can be installed in a probe card for probing a big amount of electronic devices, so that a wafer-level electronic test can be achieved efficiently and rapidly.Type: GrantFiled: January 8, 2008Date of Patent: September 7, 2010Assignee: MPI CorporationInventors: Wei-Cheng Ku, Chih-Hao Ho, Chia-Tai Chang, Ho-Hui Lin, Chien-Ho Lin
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Patent number: 7724009Abstract: A high frequency probe preparation method for making a high frequency probe for high frequency testing to assure signal integrity by means of making a sleeve assembly subject to the size of a predetermined bare needle and then sleeving bare needle by the sleeve assembly to form a high-frequency probe is disclosed to include the steps of: a) providing an insulated tube, and b) forming a conducting layer on the outer surface of the insulated tube which having a metal layer for grounding. The insulated tube and the conducting layer constitute the sleeve assembly. The metal layer is formed by means of physical deposition, chemical deposition, mixture of physical and chemical deposition or electrochemical deposition.Type: GrantFiled: May 1, 2009Date of Patent: May 25, 2010Assignee: MPI CorporationInventors: Wei-Cheng Ku, Kuan-Chun Chou
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Patent number: 7683645Abstract: A high-frequency probe card includes a circuit board having signal circuits and grounding circuits, transmission lines each having a bi-wire structure including a first lead wire for transmitting high-frequency signal and a second lead wire connected to the grounding circuits, and signal probes. High-frequency test signal provided by a test machine to the signal circuits can be transmitted to the signal probes through the first lead wires. Since the grounding circuits and second lead wires are provided adjacent to the signal circuits and first lead wires respectively, the high-frequency signal can be efficiently transmitted and the characteristic impedance matching can be maintained during high-frequency signal transmission. The bi-wire structure of the transmission lines has a diameter equal to or less than 1 millimeter, thereby allowing installation of a big number of the transmission lines such that the high-frequency test for a big number of electronic elements can be realized.Type: GrantFiled: October 20, 2006Date of Patent: March 23, 2010Assignee: MPI CorporationInventors: Wei-Cheng Ku, Hsin-Hung Lin, Chih-Hao Ho, Te-Chen Feng