WO2009118849A1 - プローブウエハ、プローブ装置、および、試験システム - Google Patents
プローブウエハ、プローブ装置、および、試験システム Download PDFInfo
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- WO2009118849A1 WO2009118849A1 PCT/JP2008/055789 JP2008055789W WO2009118849A1 WO 2009118849 A1 WO2009118849 A1 WO 2009118849A1 JP 2008055789 W JP2008055789 W JP 2008055789W WO 2009118849 A1 WO2009118849 A1 WO 2009118849A1
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- wafer
- probe
- semiconductor
- substrate
- semiconductor chip
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2886—Features relating to contacting the IC under test, e.g. probe heads; chucks
- G01R31/2889—Interfaces, e.g. between probe and tester
Definitions
- the present invention relates to a probe wafer, a probe apparatus, and a test system.
- the present invention particularly relates to a probe wafer that is electrically connected to a semiconductor wafer on which a plurality of semiconductor chips are formed.
- a probe card is formed using a printed circuit board or the like (for example, see Patent Document 2).
- a plurality of probe pins By forming a plurality of probe pins on the printed circuit board, a plurality of semiconductor chips can be electrically connected together.
- the coefficient of thermal expansion differs between the semiconductor wafer and the printed circuit board. Therefore, if the temperature fluctuates due to the heat generation of the semiconductor chip during the test, the heating test, or the cooling test, the electrical connection between the semiconductor chip and the probe card It is also possible that the connection will be lost. Such a problem becomes more prominent when testing a semiconductor chip formed on a large-area semiconductor wafer.
- the semiconductor chip testing apparatus is very large, including a control main frame, a test head for storing a plurality of test modules, and a probe card in contact with the semiconductor chip. For this reason, downsizing of the test apparatus is desired.
- an object of the present invention is to provide a probe wafer, a probe apparatus, and a test system that can solve the above-described problems. This object is achieved by a combination of features described in the independent claims.
- the dependent claims define further advantageous specific examples of the present invention.
- a probe wafer electrically connected to a semiconductor wafer on which a plurality of semiconductor chips are formed, the wafer substrate, formed on the wafer substrate, Provided is a probe wafer provided with a plurality of wafer side connection terminals provided at least one for each semiconductor chip and electrically connected to input / output terminals of the corresponding semiconductor chip.
- a probe apparatus that is electrically connected to a semiconductor wafer on which a plurality of semiconductor chips are formed, the first probe wafer being electrically connected to the semiconductor wafer, and the first A second probe wafer electrically connected to the first probe wafer, the first probe wafer being formed on the first wafer substrate and the first wafer substrate, at least for each semiconductor chip A plurality of wafer side connection terminals provided one by one and electrically connected to input / output terminals of the corresponding semiconductor chip; and a plurality of first intermediate connection terminals electrically connected to the plurality of wafer side connection terminals; The waveform of the signal to be provided to the corresponding semiconductor chip based on the signal provided from the second probe wafer, provided at least one for each semiconductor chip.
- a plurality of first circuit portions that are molded and output, and the second probe wafer is provided to face a surface of the first wafer substrate on which the plurality of first intermediate connection terminals are formed.
- the second intermediate connection terminal and at least one for each semiconductor chip are generated, and a logic pattern included in a signal to be given to the corresponding semiconductor chip is generated, and a signal corresponding to the logic pattern is output to the corresponding second
- a probe device having a plurality of second circuit parts to be supplied to one circuit part.
- a test system for testing a plurality of semiconductor chips formed on one semiconductor wafer, the wafer substrate and at least one for each semiconductor chip formed on the wafer substrate.
- a plurality of wafer-side connection terminals that are provided one by one and electrically connected to input / output terminals of the corresponding semiconductor chip, and are formed on the wafer substrate, provided at least one for each semiconductor chip, and the corresponding semiconductor
- a control device that generates a test signal used for testing a chip and supplies the test signal to a corresponding semiconductor chip, thereby generating a plurality of circuit units for testing each semiconductor chip and a control signal for controlling the plurality of circuit units
- a test system comprising:
- a test system for testing a plurality of semiconductor chips formed on one semiconductor wafer, the first probe wafer being electrically connected to the semiconductor wafer, the first probe wafer, A second probe wafer electrically connected to the probe wafer; and a control device that generates a control signal.
- the first probe wafer is formed on the first wafer substrate and the first wafer substrate, A plurality of wafer side connection terminals that are provided at least one for each semiconductor chip and are electrically connected to input / output terminals of the corresponding semiconductor chip, and a plurality of wafer side connection terminals that are electrically connected to the plurality of wafer side connection terminals
- the first intermediate connection terminals and at least one each of the semiconductor chips are provided, and a corresponding semiconductor is formed on the basis of a signal given from the second probe wafer.
- a plurality of first circuit portions that respectively shape and output a waveform of a signal to be applied to the chip, and the second probe wafer is a first wafer substrate on which the first intermediate connection terminals are formed.
- a second wafer substrate provided to face the surface, a second wafer substrate formed on the second wafer substrate, provided in one-to-one correspondence with the plurality of first intermediate connection terminals, and corresponding first intermediate connection terminals;
- a plurality of second intermediate connection terminals to be electrically connected and at least one for each semiconductor chip are generated, and a logic pattern included in a signal to be given to the corresponding semiconductor chip is generated, and the logic pattern is And a plurality of second circuit units for supplying the corresponding signals to the corresponding first circuit units.
- FIG. 2 is an example of a side view of a probe wafer 100.
- FIG. 2 is a cross-sectional view showing a configuration example of a probe apparatus 200 having a probe wafer 100.
- 3 is a diagram illustrating a configuration example of a circuit unit 110.
- FIG. 3 is a block diagram illustrating a functional configuration example of a test circuit 120.
- FIG. FIG. 6 is a diagram illustrating another configuration example of the test circuit 120.
- FIG. 6 is a diagram showing another configuration example of a test system 400.
- FIG. 6 is a diagram showing another configuration example of a test system 400.
- 2 is a cross-sectional view showing a configuration example of a probe apparatus 200 having two probe wafers 100.
- DESCRIPTION OF SYMBOLS 10 ... Control apparatus, 100 ... Probe wafer, 102 ... Wafer connection surface, 104 ... Device connection surface, 106 ... Switch, 111 ... Wafer substrate, 112 ... Wafer side connection Terminals 113 ... first intermediate connection terminals 114 ... device side connection terminals 115 ... second intermediate connection terminals 116 ... through holes 117 ... wiring 118 ... Switching unit, 119 ... Pad, 120 ... Test circuit, 122 ... Pattern generator, 124 ... Pattern memory, 126 ... Expected value memory, 128 ... Fail memory, 130 ... Waveform shaping unit, 132 ... driver, 134 ... comparator, 136 ... timing generation unit, 138 ...
- logic comparison unit 140 ... characteristic measurement unit, 142 ... power supply unit, 200 ⁇ Probe device 210 ... wafer tray 212 ... holding member 220 ... wafer side membrane 222 ... bump 230 ... wafer side PCR 240 ... device side PCR 250 ... Device side membrane, 252 ... Bump, 260 ... Device substrate, 270 ... Intermediate PCR, 280 ... Intermediate membrane, 282 ... Bump, 300 ... Semiconductor wafer, 310 ... Semiconductor chip 400 ... Test system
- FIG. 1 is a diagram illustrating a configuration example of a test system 400 according to an embodiment.
- the test system 400 is a system for testing a plurality of semiconductor chips 310 formed on a semiconductor wafer 300 to be tested, and includes a probe wafer 100 and a control device 10.
- FIG. 1 shows an example of a perspective view of the semiconductor wafer 300 and the probe wafer 100.
- the semiconductor wafer 300 may be a disk-shaped semiconductor substrate, for example. More specifically, the semiconductor wafer 300 may be silicon, a compound semiconductor, or another semiconductor substrate.
- the semiconductor chip 310 may be formed on the semiconductor wafer 300 using a semiconductor process such as exposure.
- the probe wafer 100 is electrically connected to the semiconductor wafer 300. More specifically, the probe wafer 100 is electrically connected to each of the plurality of semiconductor chips 310 formed on the semiconductor wafer 300.
- the probe wafer 100 includes a wafer substrate 111 and a plurality of wafer side connection terminals 112.
- the wafer substrate 111 is formed of the same semiconductor material as the substrate of the semiconductor wafer 300.
- the wafer substrate 111 may be a silicon substrate.
- the wafer substrate 111 may be formed of a semiconductor material having substantially the same coefficient of thermal expansion as the substrate of the semiconductor wafer 300.
- the wafer substrate 111 has a wafer connection surface formed in substantially the same shape as the surface on which the semiconductor chip 310 of the semiconductor wafer 300 is formed.
- the wafer connection surface may be formed in a circular shape having substantially the same diameter as the surface of the semiconductor wafer.
- the wafer substrate 111 is disposed so that the wafer connection surface faces the semiconductor wafer 300.
- the wafer substrate 111 may be a disk-shaped semiconductor substrate having a diameter larger than that of the semiconductor wafer 300.
- the plurality of wafer side connection terminals 112 are formed on the wafer connection surface of the wafer substrate 111. Further, at least one wafer side connection terminal 112 is provided for each semiconductor chip 310. For example, one wafer side connection terminal 112 may be provided for each input / output terminal of each semiconductor chip 310. That is, when each semiconductor chip 310 has a plurality of input / output terminals, a plurality of wafer side connection terminals 112 may be provided for each semiconductor chip 310. Each wafer side connection terminal 112 is electrically connected to an input / output terminal of the corresponding semiconductor chip 310.
- electrically connected may refer to a state in which an electric signal can be transmitted between two members.
- the wafer side connection terminal 112 and the input / output terminal of the semiconductor chip 310 may be electrically connected by direct contact or indirectly contact through another conductor.
- the wafer side connection terminal 112 and the input / output terminals of the semiconductor chip 310 may be electrically connected in a non-contact state, such as capacitive coupling (electrostatic coupling) or inductive coupling (magnetic coupling).
- a part of the transmission line between the wafer side connection terminal 112 and the input / output terminal of the semiconductor chip 310 may be an optical transmission line.
- the probe wafer 100 passes signals to and from the respective semiconductor chips 310 via the wafer side connection terminals 112.
- the probe wafer 100 of this example used in the test system 400 supplies a test signal to each semiconductor chip 310. Further, the probe wafer 100 receives a response signal that each semiconductor chip 310 outputs in response to the test signal.
- the probe wafer 100 When a test signal is supplied from the control device 10 to the probe wafer 100, the probe wafer 100 is electrically connected to the control device 10 via a device-side connection terminal formed on the device connection surface on the back surface of the wafer connection surface.
- the probe wafer 100 may transmit the response signal received from each semiconductor chip 310 to the control device 10.
- the apparatus-side connection terminal may be connected to the wafer-side connection terminal 112 via a through hole (via hole) provided in the wafer substrate 111 or the like.
- the probe wafer 100 has a plurality of circuit units 110 provided at least one for each semiconductor chip 310.
- Each circuit unit 110 is formed on the wafer substrate 111 and passes signals to and from the corresponding semiconductor chip 310 via the wafer side connection terminal 112.
- each circuit unit 110 may generate a test signal for testing the corresponding semiconductor chip 310 and supply the test signal to the semiconductor chip 310 via the wafer side connection terminal 112.
- Each circuit unit 110 may receive a response signal output from the corresponding semiconductor chip 310 via the wafer side connection terminal 112.
- Each circuit unit 110 may determine pass / fail of each semiconductor chip 310 by comparing the logic pattern of each response signal with a predetermined expected value pattern.
- the wafer substrate 111 is formed of the same semiconductor material as the substrate of the semiconductor wafer 300, the probe wafer 100, the semiconductor wafer 300, and the like can be obtained even when the ambient temperature fluctuates.
- the electrical connection between the two can be maintained well. For this reason, for example, even when the test is performed by heating the semiconductor wafer 300, the semiconductor wafer 300 can be accurately tested.
- the high-density circuit unit 110 can be easily formed on the wafer substrate 111.
- the high-density circuit unit 110 can be easily formed on the wafer substrate 111 by a semiconductor process using exposure or the like. Therefore, a large number of circuit units 110 corresponding to a large number of semiconductor chips 310 can be easily formed on the wafer substrate 111.
- the control device 10 has a function of notifying the circuit unit 110 of timing such as start of a test, a function of reading a test result in the circuit unit 110, and a function of supplying driving power to the circuit unit 110 and the semiconductor chip 310. If you have.
- the example in which the probe wafer 100 is used in the test system 400 has been described.
- the use of the probe wafer 100 is not limited to the test system 400.
- the probe wafer 100 is mounted on the electric device or the like and is electrically connected to the semiconductor wafer 300. Also good.
- FIG. 2 is an example of a side view of the probe wafer 100.
- the probe wafer 100 has the wafer connection surface 102 facing the semiconductor wafer 300 and the device connection surface 104 on the back surface of the wafer connection surface 102.
- the plurality of wafer side connection terminals 112 are formed on the wafer connection surface 102, and the plurality of device side connection terminals 114 are formed on the device connection surface 104.
- the plurality of apparatus side connection terminals 114 and the plurality of wafer side connection terminals 112 may be formed in a one-to-one correspondence.
- the terminals of the probe wafer 100 may be formed on the wafer substrate 111 by plating, evaporating, or the like with a conductive material.
- the probe wafer 100 may have through holes 116 that electrically connect the corresponding apparatus side connection terminals 114 and wafer side connection terminals 112. Each through hole 116 is formed through the wafer substrate 111.
- the interval between the respective device side connection terminals 114 and the interval between the respective wafer side connection terminals 112 may be different.
- the wafer side connection terminals 112 are arranged at the same intervals as the input terminals so as to be electrically connected to the input terminals of the semiconductor chip 310. For this reason, the wafer side connection terminals 112 are provided at minute intervals for each semiconductor chip 310 as shown in FIG.
- the device-side connection terminals 114 may be provided at intervals wider than the intervals between the plurality of wafer-side connection terminals 112 corresponding to one semiconductor chip 310.
- the device-side connection terminals 114 may be arranged at equal intervals in the surface of the device connection surface 104 so that the distribution of the device-side connection terminals 114 is substantially uniform.
- the wafer substrate 111 may be formed with wirings 117 that electrically connect the terminals and the through holes 116.
- circuit unit 110 may be formed on the apparatus connection surface 104 of the wafer substrate 111 or may be formed on the wafer connection surface 102.
- the circuit unit 110 may be formed in an intermediate layer of the wafer substrate 111.
- the circuit unit 110 is electrically connected to the corresponding wafer side connection terminal 112 and apparatus side connection terminal 114.
- FIG. 3 is a cross-sectional view showing a configuration example of the probe apparatus 200 having the probe wafer 100.
- each component of the probe device 200 will be described with reference to a diagram in which the components are separated from each other. However, each component of the probe device 200 is arranged in contact with another component adjacent in the vertical direction of FIG.
- the probe device 200 holds the semiconductor wafer 300 and electrically connects the probe wafer 100 and the semiconductor wafer 300.
- the probe apparatus 200 includes a wafer tray 210, a wafer side membrane 220, a wafer side PCR 230, a probe wafer 100, an apparatus side PCR 240, an apparatus side membrane 250, and an apparatus substrate 260.
- Wafer tray 210 holds semiconductor wafer 300.
- the wafer tray 210 is disposed to face the surface of the semiconductor wafer 300 where the terminals 312 are not formed.
- the wafer tray 210 may include a holding member 212 that holds the semiconductor wafer 300.
- the holding member 212 may be a locking member that locks the semiconductor wafer 300 to the wafer tray 210.
- the holding member 212 may attract the semiconductor wafer 300 to the wafer tray 210.
- a through hole is formed in the wafer tray 210, and the holding member 212 may suck the semiconductor wafer 300 to the wafer tray 210 through the through hole.
- the wafer-side membrane 220 is disposed between the semiconductor wafer 300 and the wafer-side PCR 230, and electrically connects the semiconductor wafer 300 and the wafer-side PCR 230.
- the wafer-side membrane 220 is provided with a plurality of conductive bumps 222 penetrating the front and back of a sheet formed of an insulating material.
- the bump 222 is electrically connected to each terminal of each semiconductor chip 310 in the semiconductor wafer 300.
- the bumps 222 may be provided in the same arrangement as the wafer side connection terminals 112 of the probe wafer 100.
- the wafer-side PCR 230 is disposed between the wafer-side membrane 220 and the probe wafer 100, and electrically connects the bumps 222 of the wafer-side membrane 220 and the wafer-side connection terminals 112 of the probe wafer 100.
- Wafer-side PCR 230 may be a sheet formed of an anisotropic conductive film that is pressed by bumps 222 and wafer-side connection terminals 112 to electrically connect bumps 222 and wafer-side connection terminals 112.
- the apparatus-side PCR 240 is disposed between the probe wafer 100 and the apparatus-side membrane 250, and electrically connects the apparatus-side connection terminals 114 of the probe wafer 100 and the bumps 252 of the apparatus-side membrane 250.
- the device-side PCR 240 may be a sheet formed of an anisotropic conductive film that is pressed by the device-side connection terminals 114 and the bumps 252 to electrically connect the device-side connection terminals 114 and the bumps 252.
- the device-side membrane 250 is disposed between the device-side PCR 240 and the device substrate 260, and electrically connects the device-side PCR 240 and the device substrate 260.
- the device-side membrane 250 is provided with a plurality of conductor bumps 252 that penetrate the front and back surfaces of a sheet formed of an insulating material.
- the bump 252 is electrically connected to each terminal on the device substrate 260.
- the bumps 252 may be provided in the same arrangement as the device side connection terminals 114 of the probe wafer 100.
- the configuration of the device substrate 260 from the wafer tray 210 to the device-side membrane 250 is fixed.
- the configuration from the wafer tray 210 to the apparatus substrate 260 may be fixed by screwing, vacuum suction, or the like.
- the device substrate 260 electrically connects the control device 10 and each bump 252 of the device-side membrane 250.
- the device substrate 260 may be a printed circuit board.
- Each membrane is effective when the area of the terminal (pad) that is electrically connected through the membrane is small, or when the terminal is an aluminum film or the like and an oxide film is formed on the surface. It becomes. For this reason, when the area of the terminal electrically connected through the membrane is sufficiently large, the membrane may be omitted. For example, since the terminal of the device substrate 260 can be easily formed into a large area and gold-plated, the probe device 200 does not have to include the device-side membrane 250.
- the probe wafer 100 and the semiconductor wafer 300 can be electrically connected. Further, the probe wafer 100 and the control device 10 can be electrically connected.
- the wafer side membrane 220 is preferably formed of a material having a thermal expansion coefficient comparable to that of the substrate of the semiconductor wafer 300.
- the device-side membrane 250 is preferably formed of a material having a thermal expansion coefficient comparable to that of the wafer substrate 111.
- FIG. 4 is a diagram illustrating a configuration example of the circuit unit 110.
- the circuit unit 110 is formed on the device connection surface 104 will be described.
- the plurality of circuit units 110 formed on the wafer substrate 111 may have the same configuration.
- Each circuit unit 110 includes a plurality of test circuits 120 and a plurality of switching units 118.
- the circuit unit 110 is provided with a plurality of pads 119.
- the plurality of pads 119 are electrically connected to the wafer side connection terminals 112 formed on the wafer connection surface 102 through the through holes 116.
- Each test circuit 120 is connected to the control device 10 via the device-side connection terminal 114.
- Each test circuit 120 may be supplied with a control signal, power supply power, and the like from the control device 10. Further, during normal operation, the first test circuit 120-1 operates, and the other test circuits 120 operate when the first test circuit 120-1 fails.
- the plurality of test circuits 120 may be the same circuit.
- Each switching unit 118 selects an operating test circuit 120 from a plurality of test circuits 120. Further, during normal operation, the first switching unit 118-1 operates, and the other switching units 118 operate when the first switching unit 118-1 fails. Each of the plurality of switching units 118 may be the same circuit.
- the switching unit 118 connects the selected test circuit 120 to the wafer side connection terminal 112 via the pad 119, and causes the corresponding semiconductor chip 310 to be tested.
- the test circuits 120 having semiconductor elements can be formed with high density. Therefore, a plurality of test circuits 120 including a spare circuit can be easily provided in a region corresponding to the semiconductor chip 310.
- the circuit unit 110 may include a single test circuit 120 and may not include the switching unit 118.
- FIG. 5 is a block diagram illustrating a functional configuration example of the test circuit 120.
- the test circuit 120 includes a pattern generation unit 122, a waveform shaping unit 130, a driver 132, a comparator 134, a timing generation unit 136, a logic comparison unit 138, a characteristic measurement unit 140, and a power supply unit 142. Note that the test circuit 120 may have the configuration shown in FIG. 5 for each input / output pin of the semiconductor chip 310 to be connected.
- the pattern generator 122 generates a logic pattern of the test signal.
- the pattern generation unit 122 of this example includes a pattern memory 124, an expected value memory 126, and a fail memory 128.
- the pattern generator 122 may output a logical pattern stored in advance in the pattern memory 124.
- the pattern memory 124 may store a logical pattern given from the control device 10 before starting the test.
- the pattern generator 122 may generate the logical pattern based on an algorithm given in advance.
- the waveform shaping unit 130 shapes the waveform of the test signal based on the logical pattern given from the pattern generation unit 122.
- the waveform shaping unit 130 may shape the waveform of the test signal by outputting a voltage corresponding to each logic value of the logic pattern for each predetermined bit period.
- the driver 132 outputs a test signal corresponding to the waveform given from the waveform shaping unit 130.
- the driver 132 may output a test signal in accordance with the timing signal given from the timing generator 136.
- the driver 132 may output a test signal having the same cycle as the timing signal.
- the test signal output from the driver 132 is supplied to the corresponding semiconductor chip 310 via the switching unit 118 and the like.
- the comparator 134 measures the response signal output from the semiconductor chip 310.
- the comparator 134 may measure the logical pattern of the response signal by sequentially detecting the logical value of the response signal in accordance with the strobe signal supplied from the timing generator 136.
- the logic comparison unit 138 functions as a determination unit that determines the quality of the corresponding semiconductor chip 310 based on the logic pattern of the response signal measured by the comparator 134. For example, the logic comparison unit 138 may determine the quality of the semiconductor chip 310 based on whether or not the expected value pattern given from the pattern generation unit 122 matches the logic pattern detected by the comparator 134.
- the pattern generation unit 122 may supply the expected value pattern stored in advance in the expected value memory 126 to the logic comparison unit 138.
- the expected value memory 126 may store a logic pattern given from the control device 10 before the test is started.
- the pattern generation unit 122 may generate the expected value pattern based on an algorithm given in advance.
- the fail memory 128 stores the comparison result in the logical comparison unit 138.
- the fail memory 128 may store the pass / fail judgment result in the logic comparison unit 138 for each address of the semiconductor chip 310.
- the control device 10 may read the pass / fail judgment result stored in the fail memory 128.
- the apparatus side connection terminal 114 may output the pass / fail determination result stored in the fail memory 128 to the control apparatus 10 outside the probe wafer 100.
- the characteristic measurement unit 140 measures the voltage or current waveform output by the driver 132.
- the characteristic measurement unit 140 may function as a determination unit that determines whether the semiconductor chip 310 is good or not based on whether a waveform of a current or voltage supplied from the driver 132 to the semiconductor chip 310 satisfies a predetermined specification. .
- the power supply unit 142 supplies power for driving the semiconductor chip 310.
- the power supply unit 142 may supply power to the semiconductor chip 310 according to the power supplied from the control device 10 during the test. Further, the power supply unit 142 may supply driving power to each component of the test circuit 120.
- test circuit 120 Since the test circuit 120 has such a configuration, the test system 400 in which the scale of the control device 10 is reduced can be realized.
- a general-purpose personal computer or the like can be used as the control device 10.
- FIG. 6 is a diagram showing another example of the configuration of the test circuit 120.
- the test circuit 120 of this example has a part of the configuration of the test circuit 120 described in FIG.
- the test circuit 120 may include a driver 132, a comparator 134, and a characteristic measurement unit 140.
- the driver 132, the comparator 134, and the characteristic measurement unit 140 may be the same as the driver 132, the comparator 134, and the characteristic measurement unit 140 described with reference to FIG.
- control device 10 may include the pattern generation unit 122, the waveform shaping unit 130, the timing generation unit 136, the logic comparison unit 138, and the power supply unit 142 described in FIG.
- the test circuit 120 outputs a test signal in accordance with a control signal given from the control device 10. Further, the test circuit 120 transmits the measurement result in the comparator 134 to the control device 10. Such a configuration of the test circuit 120 can also reduce the scale of the control device 10.
- FIG. 7 is a diagram illustrating another configuration example of the test system 400.
- the probe wafer 100 of this example has one circuit unit 110 for each predetermined number of semiconductor chips 310.
- the circuit unit 110 in this example tests one of the selected semiconductor chips 310 among the corresponding semiconductor chips 310.
- FIG. 8 is a diagram illustrating a configuration example of the circuit unit 110 described with reference to FIG.
- the circuit unit 110 of this example includes a test circuit 120 and a switch 106.
- the test circuit 120 may be the same as any of the test circuits 120 described in connection with FIGS.
- the switch 106 switches which semiconductor chip 310 the test circuit 120 is connected to. Specifically, the switch 106 connects the test circuit 120 to the wafer side connection terminal 112 corresponding to the semiconductor chip 310 to be tested.
- the switch 106 may sequentially connect the test circuit 120 to the wafer side connection terminal 112 corresponding to each semiconductor chip 310 in order to sequentially test each semiconductor chip 310.
- the test circuit 120 may sequentially test each semiconductor chip 310. With such a configuration, even when the same number of test circuits 120 as the semiconductor chips 310 cannot be formed on the wafer substrate 111, each semiconductor chip 310 can be tested.
- FIG. 9 is a diagram illustrating another configuration example of the test system 400.
- the test system 400 of this example includes a probe wafer 100-1 on the wafer under test side, a probe wafer 100-2 on the control device side, and the control device 10.
- the probe wafer 100-1 on the wafer under test side is provided between the semiconductor wafer 300 and the probe wafer 100-2 on the control apparatus side.
- the probe wafer 100-2 on the control device side is provided between the probe wafer 100-1 on the wafer under test side and the control device 10.
- the probe wafer 100-1 on the wafer under test side functions as the first probe wafer.
- the probe wafer 100-2 on the control device side functions as a second probe wafer.
- Each of the probe wafer 100-1 and the probe wafer 100-2 may have a surface formed in a circular shape having substantially the same diameter as the surface on which the semiconductor chip 310 of the semiconductor wafer 300 is formed.
- Each of the probe wafer 100-1 on the test wafer side and the probe wafer 100-2 on the control apparatus side may have the same function and configuration as the probe wafer 100 described with reference to FIGS.
- the first circuit section 110-1 of the probe wafer 100-1 on the wafer under test side and the second circuit section 110-2 of the probe wafer 100-2 on the control apparatus side have different circuits. Good.
- the first circuit unit 110-1 may have a part of the configuration of the test circuit 120 shown in FIG.
- the second circuit unit 110-2 may have a configuration other than the portion of the first circuit unit 110-1 in the configuration of the test circuit 120 illustrated in FIG. That is, each semiconductor chip 310 may be tested by the cooperation of the corresponding first circuit unit 110-1 and second circuit unit 110-2.
- At least one second circuit unit 110-2 may be provided for each first circuit unit 110-1.
- at least one first circuit unit 110-1 may be provided for each second circuit unit 110-2.
- the second circuit unit 110-2 generates a logic pattern included in a signal to be given to the corresponding semiconductor chip, and supplies the generated signal to the corresponding first circuit unit 110-1. You can do it.
- the second circuit unit 110-2 may include the pattern generation unit 122 described with reference to FIG.
- the first circuit unit 110-1 may shape the waveform of the signal to be supplied to the corresponding semiconductor chip 310 based on the signal supplied from the corresponding second circuit unit 110-2.
- the first circuit unit 110-1 may include the waveform shaping unit 130 described with reference to FIG.
- the second circuit unit 110-2 includes a circuit part that is commonly used for each type of the semiconductor chip 310 or for each test of the semiconductor chip 310 among the circuits for testing the semiconductor chip 310. It's okay.
- the first circuit unit 110-1 may include a circuit portion to be replaced for each type of the semiconductor chip 310 or for each test for the semiconductor chip 310 among the circuits for testing the semiconductor chip 310. With such a configuration, the probe wafer 100-2 on the control device side can be shared for a plurality of types of semiconductor chips 310, and the test cost can be reduced.
- the second circuit unit 110-2 may include all the components of the test circuit 120 shown in FIG. 5, for example.
- the probe wafer 100-1 on the wafer under test need not have the first circuit unit 110-1.
- the probe wafer 100-1 on the wafer under test side may function as a pitch conversion substrate for electrically connecting the probe wafer 100-2 on the control apparatus side having different terminal intervals to the semiconductor wafer 300.
- the probe wafer 100-1 on the wafer under test side is the same as the second intermediate connection terminal 115 in the probe wafer 100-2 on the control device side on the surface facing the probe wafer 100-2 on the control device side.
- the probe wafer 100-1 on the wafer under test side may have a wafer side connection terminal 112 formed on the surface facing the semiconductor wafer 300 in the same arrangement as the terminal 312 in the semiconductor wafer 300.
- the corresponding first intermediate connection terminal and wafer side connection terminal 112 are electrically connected through a through hole 116 formed through the first wafer substrate 111-1.
- the first circuit unit 110-1 may be a wiring circuit that determines which semiconductor chip 310 is connected to each second circuit unit 110-2.
- the test system 400 may switch which semiconductor chip 310 the second circuit unit 110-2 is connected to by replacing the probe wafer 100-1 on the wafer under test side.
- the first circuit unit 110-1 may be a switching circuit that switches which semiconductor chip 310 the second circuit unit 110-2 is connected to.
- the control device 10 may switch the connection relationship between the second circuit unit 110-2 and the semiconductor chip 310 by controlling each first circuit unit 110-1.
- the first circuit unit 110-1 may be a wiring circuit that determines which terminal of the corresponding semiconductor chip 310 is connected to each terminal of the corresponding second circuit unit 110-2. Further, the first circuit unit 110-1 may be a switching circuit that switches which terminal of the corresponding semiconductor chip 310 is connected to each terminal of the corresponding second circuit unit 110-2.
- the test system 400 includes at least one of the two probe wafers 100 so as to be replaceable. Therefore, the test system 400 can test various semiconductor wafers 300 at a low cost.
- FIG. 10 is a cross-sectional view showing a configuration example of a probe apparatus 200 having two probe wafers 100.
- the components of the probe device 200 will be described with reference to the separated drawings. However, the components of the probe device 200 are arranged in contact with other components adjacent in the vertical direction of FIG. The
- the probe apparatus 200 includes a wafer tray 210, a wafer side membrane 220, a wafer side PCR 230, a probe wafer 100, an apparatus side PCR 240, an apparatus side membrane 250, an intermediate PCR 270, an intermediate membrane 280, and an apparatus substrate 260.
- Wafer tray 210 holds semiconductor wafer 300.
- the wafer tray 210, the wafer side membrane 220, and the wafer side PCR 230 may have the same functions and structures as the wafer tray 210, the wafer side membrane 220, and the wafer side PCR 230 described in relation to FIG.
- the wafer-side PCR 230 is arranged between the wafer-side membrane 220 and the probe wafer 100-1 on the semiconductor wafer side, and the bump 222 on the wafer-side membrane 220 and the wafer side of the probe wafer 100-1 on the semiconductor wafer side.
- the connection terminal 112 is electrically connected.
- the probe wafer 100-1 on the semiconductor wafer side has a plurality of first intermediate connection terminals 113 on the surface facing the intermediate PCR 270.
- Each of the first intermediate connection terminals 113 may be electrically connected to the corresponding wafer-side connection terminal 112 through the through hole 116, similarly to the apparatus-side connection terminal 114 described with reference to FIG. .
- the plurality of first intermediate connection terminals 113 are provided in the same arrangement as a second intermediate connection terminal 115 described later. Further, the first intermediate connection terminal 113 may be provided in a different arrangement from the wafer side connection terminal 112.
- the intermediate PCR 270 is arranged between the probe wafer 100-1 on the semiconductor wafer side and the intermediate membrane 280, and electrically connects the first intermediate connection terminal 113 and the bump 282 of the intermediate membrane 280 on the probe wafer 100-1. Connect to.
- the intermediate PCR 270 is a sheet made of an anisotropic conductive film that is pressed by the first intermediate connection terminal 113 and the bump 282 to electrically connect the first intermediate connection terminal 113 and the bump 282. Good.
- the intermediate membrane 280 is disposed between the intermediate PCR 270 and the probe wafer 100-2 on the control device side, and electrically connects the intermediate PCR 270 and the probe wafer 100-2.
- the intermediate membrane 280 is provided with a plurality of conductive bumps 282 penetrating the front and back of the sheet formed of an insulating material.
- the bump 282 is electrically connected to the second intermediate connection terminal 115 in the probe wafer 100-2.
- the bumps 282 may be provided in the same arrangement as the second intermediate connection terminals 115 of the probe wafer 100-2.
- the probe wafer 100-2 on the control device side is provided on the surface corresponding to the intermediate membrane 280 on the second wafer substrate 111-2 in a one-to-one correspondence with the plurality of first intermediate connection terminals 113.
- a plurality of second intermediate connection terminals 115 are provided. Each second intermediate connection terminal 115 may be electrically connected to the corresponding apparatus side connection terminal 114 through a through hole formed through the second wafer substrate 111-2.
- the second intermediate connection terminal 115 may be provided in the same arrangement as the device side connection terminal 114.
- the device-side PCR 240, the device-side membrane 250, and the device substrate 260 may have the same functions and structures as the device-side PCR 240, the device-side membrane 250, and the device substrate 260 described with reference to FIG.
- the apparatus-side PCR 240 is disposed between the probe wafer 100-2 on the control apparatus side and the apparatus-side membrane 250, and electrically connects the probe wafer 100-2 and the apparatus-side membrane 250. With such a configuration, the semiconductor wafer 300 can be tested using the two probe wafers 100.
- any membrane may be omitted in the probe apparatus 200 of this example.
- the probe device 200 may not have the device-side membrane 250.
- the probe device 200 since the terminals of the probe wafer 100 can be formed with a large area by gold plating or the like, the probe device 200 does not need to have the intermediate membrane 280.
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Abstract
Description
Claims (18)
- 複数の半導体チップが形成された半導体ウエハと電気的に接続するプローブウエハであって、
ウエハ基板と、
前記ウエハ基板に形成され、それぞれの前記半導体チップに対して少なくとも一つずつ設けられ、対応する前記半導体チップの入出力端子と電気的に接続する複数のウエハ側接続端子と
を備えるプローブウエハ。 - 前記ウエハ基板に形成され、それぞれの前記半導体チップに対して少なくとも一つずつ設けられ、前記ウエハ側接続端子を介して、対応する前記半導体チップとの間で信号を受け渡す複数の回路部を更に備える
請求項1に記載のプローブウエハ。 - それぞれの前記回路部は、同一の構成を有する
請求項2に記載のプローブウエハ。 - それぞれの前記回路部は、対応する前記半導体チップに供給する信号を生成する
請求項2に記載のプローブウエハ。 - それぞれの前記回路部は、前記半導体チップの試験に用いる試験信号を生成して、対応する前記半導体チップにそれぞれ供給する
請求項4に記載のプローブウエハ。 - それぞれの前記回路部は、対応する前記半導体チップが前記試験信号に応じて出力する応答信号に基づいて、対応する前記半導体チップの良否を判定する
請求項5に記載のプローブウエハ。 - それぞれの前記回路部は、
前記試験信号の論理パターンを生成するパターン発生部と、
前記論理パターンに基づいて前記試験信号の波形を成形して出力する波形成形部と、
前記応答信号を測定するコンパレータと、
前記コンパレータにおける測定結果に基づいて、前記半導体チップの良否を判定する判定部と
を有する請求項6に記載のプローブウエハ。 - 前記ウエハ基板は、
前記ウエハ側接続端子が形成されるウエハ接続面と、
前記ウエハ接続面の裏面に形成される装置接続面とを有し、
前記プローブウエハは、前記ウエハ基板の前記装置接続面に形成され、前記回路部における良否判定結果を外部の装置に出力する装置側接続端子を更に備える
請求項7に記載のプローブウエハ。 - 前記ウエハ基板は、前記半導体ウエハの基板と同一の半導体材料で形成される
請求項8に記載のプローブウエハ。 - 前記ウエハ基板の前記ウエハ接続面は、前記半導体ウエハの前記半導体チップが形成される面と略同一の形状に形成される
請求項8に記載のプローブウエハ。 - 前記ウエハ基板の前記ウエハ接続面および前記装置接続面は、異方性導電膜を介して前記半導体ウエハおよび前記外部の装置と接触する
請求項8に記載のプローブウエハ。 - 前記ウエハ基板に形成され、所定の個数の前記半導体チップごとに一つずつ設けられ、対応する前記半導体チップに供給する信号を生成する複数の回路部と、
それぞれの前記回路部を、いずれの前記半導体チップに接続するかを切り替えるスイッチと
を更に備える請求項1に記載のプローブウエハ。 - 複数の半導体チップが形成された半導体ウエハと電気的に接続するプローブ装置であって、
前記半導体ウエハと電気的に接続される第1のプローブウエハと、
前記第1のプローブウエハと電気的に接続される第2のプローブウエハと
を備え、
前記第1のプローブウエハは、
第1のウエハ基板と、
前記第1のウエハ基板に形成され、それぞれの前記半導体チップに対して少なくとも一つずつ設けられ、対応する前記半導体チップの入出力端子と電気的に接続する複数のウエハ側接続端子と、
前記複数のウエハ側接続端子と電気的に接続される複数の第1の中間接続端子と、
それぞれの前記半導体チップに対して少なくとも一つずつ設けられ、前記第2のプローブウエハから与えられる信号に応じた信号を出力する複数の第1の回路部と
を有し、
前記第2のプローブウエハは、
前記第1のウエハ基板の前記複数の第1の中間接続端子が形成される面と対向して設けられる第2のウエハ基板と、
前記第2のウエハ基板に形成され、前記複数の第1の中間接続端子と一対一に対応して設けられ、対応する前記第1の中間接続端子と電気的に接続される複数の第2の中間接続端子と、
それぞれの前記第1の回路部に対して少なくとも一つずつ設けられ、対応する前記第1の回路部に与えるべき信号を生成する複数の第2の回路部と
を有するプローブ装置。 - 前記第1の回路部および前記第2の回路部は、対応する前記半導体チップの試験に用いる信号を生成する
請求項13に記載のプローブ装置。 - 前記第1のウエハ基板および前記第2のウエハ基板は、前記半導体ウエハの基板と同一の半導体材料で形成される
請求項14に記載のプローブ装置。 - 前記第1のウエハ基板および前記第2のウエハ基板のそれぞれは、前記半導体ウエハの前記半導体チップが形成される面と略同一の形状に形成された面を有する
請求項14に記載のプローブ装置。 - 一つの半導体ウエハに形成された複数の半導体チップを試験する試験システムであって、
ウエハ基板と、
前記ウエハ基板に形成され、それぞれの前記半導体チップに対して少なくとも一つずつ設けられ、対応する前記半導体チップの入出力端子と電気的に接続する複数のウエハ側接続端子と、
前記ウエハ基板に形成され、それぞれの前記半導体チップに対して少なくとも一つずつ設けられ、対応する前記半導体チップの試験に用いる試験信号を生成して、対応する前記半導体チップにそれぞれ供給することで、それぞれの前記半導体チップを試験する複数の回路部と、
前記複数の回路部を制御する制御信号を生成する制御装置と
を備える試験システム。 - 一つの半導体ウエハに形成された複数の半導体チップを試験する試験システムであって、
前記半導体ウエハと電気的に接続される第1のプローブウエハと、
前記第1のプローブウエハと電気的に接続される第2のプローブウエハと、
制御信号を生成する制御装置と
を備え、
前記第1のプローブウエハは、
第1のウエハ基板と、
前記第1のウエハ基板に形成され、それぞれの前記半導体チップに対して少なくとも一つずつ設けられ、対応する前記半導体チップの入出力端子と電気的に接続する複数のウエハ側接続端子と、
前記複数のウエハ側接続端子と電気的に接続される複数の第1の中間接続端子と、
それぞれの前記半導体チップに対して少なくとも一つずつ設けられ、前記第2のプローブウエハから与えられる信号に基づいて、対応する前記半導体チップに応じた信号を出力する複数の第1の回路部と
を有し、
前記第2のプローブウエハは、
前記第1の中間接続端子が形成される前記第1のウエハ基板における面と対向して設けられる第2のウエハ基板と、
前記第2のウエハ基板に形成され、前記複数の第1の中間接続端子と一対一に対応して設けられ、対応する前記第1の中間接続端子と電気的に接続される複数の第2の中間接続端子と、
それぞれの前記第1の回路部に対して少なくとも一つずつ設けられ、対応する前記第1の回路部に与えるべき信号を生成する複数の第2の回路部と
を有する試験システム。
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KR1020107013847A KR101204109B1 (ko) | 2008-03-26 | 2008-03-26 | 프로브 웨이퍼, 프로브 장치 및 시험 시스템 |
CN2008801282224A CN101978485B (zh) | 2008-03-26 | 2008-03-26 | 探针晶片、探针装置以及测试系统 |
EP08738956A EP2259296A1 (en) | 2008-03-26 | 2008-03-26 | Probe wafer, probe device, and testing system |
JP2010505090A JP5282082B2 (ja) | 2008-03-26 | 2008-03-26 | プローブ装置および試験システム |
PCT/JP2008/055789 WO2009118849A1 (ja) | 2008-03-26 | 2008-03-26 | プローブウエハ、プローブ装置、および、試験システム |
TW098108616A TW200947579A (en) | 2008-03-26 | 2009-03-17 | Probe wafer, probe device and test system |
US12/857,483 US8427187B2 (en) | 2008-03-26 | 2010-08-16 | Probe wafer, probe device, and testing system |
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JP2011112411A (ja) * | 2009-11-25 | 2011-06-09 | Elpida Memory Inc | 半導体装置 |
JP2011196934A (ja) * | 2010-03-23 | 2011-10-06 | Hitachi Ltd | 試験方法およびそれに用いられるインターポーザ |
TWI484190B (zh) * | 2010-08-04 | 2015-05-11 | Univ Nat Cheng Kung | 探針晶圓 |
WO2013101239A1 (en) * | 2011-12-31 | 2013-07-04 | Intel Corporation | Increasing current carrying capability through direct liquid cooling of test contacts |
US20130229199A1 (en) * | 2012-03-05 | 2013-09-05 | Star Technologies, Inc. | Testing apparatus for performing avalanche test |
JP2014021786A (ja) | 2012-07-19 | 2014-02-03 | International Business Maschines Corporation | コンピュータ・システム |
JP5690321B2 (ja) * | 2012-11-29 | 2015-03-25 | 株式会社アドバンテスト | プローブ装置および試験装置 |
CN104181453A (zh) * | 2013-05-24 | 2014-12-03 | 标准科技股份有限公司 | 芯片测试机 |
TWI571642B (zh) * | 2015-09-10 | 2017-02-21 | 新特系統股份有限公司 | 使用單一探針測試晶片的多個連接墊的測試裝置及方法 |
CN112114238A (zh) * | 2019-06-19 | 2020-12-22 | 矽电半导体设备(深圳)股份有限公司 | 一种晶圆片测试系统 |
CN113030701A (zh) * | 2021-03-09 | 2021-06-25 | 上海华虹宏力半导体制造有限公司 | 一种射频器件的功率承载力的测量方法 |
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