WO2015015921A1 - プローバ - Google Patents
プローバ Download PDFInfo
- Publication number
- WO2015015921A1 WO2015015921A1 PCT/JP2014/065664 JP2014065664W WO2015015921A1 WO 2015015921 A1 WO2015015921 A1 WO 2015015921A1 JP 2014065664 W JP2014065664 W JP 2014065664W WO 2015015921 A1 WO2015015921 A1 WO 2015015921A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- probe
- probe head
- probe card
- prober
- main body
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06794—Devices for sensing when probes are in contact, or in position to contact, with measured object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/073—Multiple probes
- G01R1/07307—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card
- G01R1/07314—Multiple probes with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card the body of the probe being perpendicular to test object, e.g. bed of nails or probe with bump contacts on a rigid support
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R3/00—Apparatus or processes specially adapted for the manufacture or maintenance of measuring instruments, e.g. of probe tips
-
- 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 prober, and more particularly to a prober that automatically replaces the probe head of a probe card.
- a prober is known as a substrate inspection apparatus for inspecting electrical characteristics of a semiconductor device such as a power device or a memory formed on a semiconductor wafer (hereinafter simply referred to as “wafer”) as a substrate.
- the prober includes a disk-shaped probe card having a large number of probe needles, and a stage on which a wafer is placed and moves freely up, down, left, and right.
- the electrical characteristics of the semiconductor device are inspected by bringing the inspection current into contact with the bumps and passing an inspection current from each probe needle to the electrode pads or solder bumps (see, for example, Patent Document 1).
- each probe needle of the probe card repeatedly contacts the electrode pad and the needle tip may be worn out. Therefore, it is necessary to periodically replace the probe needle.
- each probe needle was welded to the wiring inside the probe card, so when replacing the probe needle, the probe card was also replaced.
- the probe card was placed inside the prober body, so the probe card was replaced.
- the probe card is expensive, replacement of the probe card requires a considerable cost.
- a probe head (probe insert) 121 that can be attached to and detached from the probe card 120 is provided, and the probe needles 122 are exchanged by intensively arranging the probe needles 122 on the probe head 121.
- a prober has been proposed that can replace each probe needle 122 with a worn tip only (see, for example, Patent Document 2).
- a tiltable clamp 123 is provided on the probe card 120, and when the probe head 121 is pressed against the probe card 120 as shown in FIG. 13A, it is shown in FIG. 13B.
- FIG. 13B an exchange method in which the clamp 123 is tilted and the probe head 121 is held has been proposed.
- a flange 141 is partially provided on the periphery of the disk-shaped probe head 140 (FIGS. 14A and 14D), and a cylindrical clamp 143 having a flange 142 is provided at the tip of the probe card 120 (FIG. 14).
- the probe head 140 is rotated relative to the clamp 143, and as shown in FIGS. 14B and 14E, the flange of the probe head 140 is rotated.
- An exchange method for holding the probe head 140 by engaging 141 with the flange 142 of the clamp 143 has also been proposed.
- the probe card 120 shown in FIGS. 13A to 13B and FIGS. 14A to 14E is also arranged inside the prober main body and the operator's work space cannot be secured inside the prober main body, the probe head 121, In order to replace 140, it is necessary to detach the probe card 120 from the prober and to attach it to the prober again.
- the probe card 120 As the diameter of the wafer increases in recent years, the probe card 120 also becomes larger and the weight of the probe card 120 exceeds, for example, 20 kg. Therefore, it is difficult to detach the probe card 120. There is a problem that the probe head cannot be replaced.
- An object of the present invention is to provide a prober in which a probe head can be easily replaced.
- a main body a stage disposed inside the main body and placing a substrate thereon, and a probe card disposed inside the main body and facing the stage.
- the probe card is a prober that is detachable from the probe card and has a probe head on which a plurality of probe needles are arranged, and is arranged inside the main body, and holds the probe head to hold the probe head.
- a prober having a moving mechanism that is movable toward the probe card is provided.
- the moving mechanism is preferably configured to be rotatable about an axis along the moving direction as a central axis.
- a stocker disposed inside the main body and capable of accommodating the probe head.
- a camera for confirming the position of the moving mechanism is further provided, and the camera detects a mark for confirming the position provided on the moving mechanism.
- the moving mechanism has a facing surface that faces the probe card and on which the two position confirmation marks are arranged, and the two position confirmation marks are arranged diagonally on the facing surface. It is preferred that
- the moving mechanism has a vacuum suction mechanism capable of vacuum-sucking the probe head, and it is determined whether or not a negative pressure can be applied to the vacuum suction mechanism.
- a main body a stage disposed inside the main body and placing a substrate thereon, a probe card disposed inside the main body and facing the stage, A probe card exchange mechanism movable toward the probe card for exchanging the probe card, the probe card being removable from the probe card and having a probe head on which a plurality of probe needles are arranged A prober, wherein the probe card exchange mechanism has a moving mechanism that holds the probe head and is movable toward the probe card separately from the probe card exchange mechanism.
- a main body a stage disposed inside the main body and placing a substrate thereon, and a probe card disposed inside the main body and facing the stage.
- the probe card is a prober that is detachable from the probe card and has a probe head on which a plurality of probe needles are arranged, wherein the stage is configured to be movable toward the probe card, and A prober having an adapter that is detachable from the stage and holds the probe head is provided.
- the stage has a vacuum suction mechanism capable of vacuum-sucking the probe head via the adapter, and it is determined whether or not a negative pressure can be applied to the vacuum suction mechanism.
- a main body a stage disposed inside the main body and placing a substrate thereon, and a probe card disposed inside the main body and facing the stage.
- the probe card is a prober that is removable from the probe card and has a probe head on which a plurality of probe needles are arranged, and polishes the tip of each probe needle of the probe head attached to the probe card.
- the needle tip polishing mechanism is configured to be movable toward the probe card, and further includes an adapter that is detachable from the needle tip polishing mechanism and holds the probe head.
- a prober is provided.
- the stage has a vacuum suction mechanism capable of vacuum-sucking the probe head via the adapter, and it is determined whether or not a negative pressure can be applied to the vacuum suction mechanism.
- a probe card wherein the probe card is a prober that is detachable from the probe card and has a probe head on which a plurality of probe needles are arranged, A prober having a moving mechanism that holds a probe head and is movable toward the probe card is provided.
- the moving mechanism is provided inside the main body and is movable toward the probe card while holding the probe head, the probe head is moved toward the probe card by the moving mechanism. Therefore, the probe head can be exchanged without bothering the operator and without detaching the probe card from the main body. As a result, the probe head can be easily replaced.
- the probe card exchanging mechanism has a moving mechanism that holds the probe head and is movable toward the probe card separately from the probe card exchanging mechanism.
- the probe head can be exchanged without bothering the operator's hand and without detaching the probe card from the main body. As a result, the probe head can be easily replaced.
- the stage movable toward the probe card has the adapter holding the probe head
- the probe head held on the adapter by the stage can be moved toward the probe card.
- the probe head can be exchanged without bothering the user and without detaching the probe card from the main body. As a result, the probe head can be easily replaced.
- the needle tip polishing mechanism that is movable toward the probe card has the adapter that holds the probe head, so that the probe head held by the adapter by the needle tip polishing mechanism is moved toward the probe card. Therefore, the probe head can be exchanged without bothering the operator and without detaching the probe card from the main body. As a result, the probe head can be easily replaced.
- FIG. 1 is a perspective view schematically showing a configuration of a prober according to a first embodiment of the present invention.
- FIG. 2 is a perspective view schematically showing a configuration inside the main body of the prober of FIG. [FIG. 3A to FIG. 3B]
- FIG. 7 is a perspective view schematically showing a configuration inside a main body of a prober according to a second embodiment of the present invention. [FIG. 8A to FIG. 8C] FIG. FIG. FIG.
- FIG. 9 is a perspective view schematically showing a configuration inside the main body of the prober according to the present embodiment.
- FIG. 10 is a perspective view schematically showing a configuration inside a main body of a modified example of the prober according to the present embodiment.
- FIG. 11A to FIG. 11B FIG. 11A to FIG.
- FIG. 12 is a perspective view schematically showing a configuration of a probe card having a probe head.
- FIGS. 13A to 13B are process diagrams showing a method of mounting the probe head on the probe card of FIG.
- FIGS. 14A to 14E are process diagrams showing another method of attaching the probe head to the probe card of FIG.
- FIG. 1 is a perspective view schematically showing a configuration of a prober according to the present embodiment.
- a prober 10 includes a main body 12 containing a stage 11 on which a wafer W is placed, a loader 13 disposed adjacent to the main body 12, and a test head 14 disposed so as to cover the main body 12.
- the electrical characteristics of the semiconductor device formed on the wafer W having a large diameter, for example, a diameter of 300 mm or 450 mm, are inspected.
- the main body 12 has a hollow casing shape, and the ceiling portion 12a is provided with an opening 12b that opens above the wafer W placed on the stage 11, and the opening 12b has a substantially disc shape.
- the probe card holder (not shown) is engaged, and the probe card holder holds the disc-like probe card 16 (see FIG. 2 described later). As a result, the probe card 16 faces the wafer W placed on the stage 11.
- the wafer W is vacuum-sucked to the stage 11 by a vacuum hole 42 (vacuum suction mechanism) described later so that the relative position with respect to the stage 11 does not shift.
- the test head 14 has a rectangular parallelepiped shape and is configured to be rotatable upward by a hinge mechanism 15 provided on the main body 12. When the test head 14 covers the main body 12, the test head 14 is electrically connected to the probe card 16 through a contact ring (not shown).
- the test head 14 stores an electrical signal indicating electrical characteristics of the semiconductor device transmitted from the probe card 16 as measurement data, and the electrical of the semiconductor device of the wafer W to be inspected based on the measurement data.
- a determination unit (none of which is shown) for determining whether or not there is a defect.
- the loader 13 takes out a wafer W on which a semiconductor device is formed, which is accommodated in a FOUP (not shown), which is a transfer container, from the FOUP and places it on the stage 11 of the main body 12.
- the inspected wafer W is removed from the stage 11 and stored in the FOUP.
- the probe card 16 has a detachable probe head 30, and a large number of probe needles 35 (see FIGS. 3A and 4A described later) are concentrated on the probe head 30.
- the stage 11 adjusts the relative positions of the probe card 16 and the wafer W to bring the electrode pads of the semiconductor device into contact with the probe needles 35.
- the test head 14 passes an inspection current to the semiconductor device via the probe needles 35 of the probe card 16, and then the probe card 16 is electrically connected to the semiconductor device.
- An electrical signal indicating the characteristics is transmitted to a data storage unit of the test head 14, the data storage unit stores the transmitted electrical signal as measurement data, and the determination unit is a semiconductor device to be inspected based on the stored measurement data The presence or absence of electrical defects is determined.
- FIG. 2 is a perspective view schematically showing a configuration inside the main body of the prober of FIG.
- a stage 11 includes a Y-direction moving unit 17 that moves along the Y direction shown in the figure, an X-direction moving unit 18 that moves along the X direction shown in the figure, and a Z direction shown in the figure. And a Z-direction moving unit 19 that moves the stage 11 toward the probe card 16.
- the Y-direction moving unit 17 is driven with high precision in the Y-direction by the rotation of a ball screw (not shown) arranged along the Y-direction, and the ball screw is a stepping motor for a Y-direction moving unit (not shown). It is rotated by.
- the X-direction moving unit 18 is driven with high accuracy in the X direction by the rotation of a ball screw 18a disposed along the X direction.
- the ball screw 18a is also rotated by an X-direction moving unit motor (not shown) which is a step motor.
- the stage 11 is disposed on the Z-direction moving unit 19 so as to be movable in the ⁇ direction shown in the drawing, and the wafer W is placed on the stage 11.
- the Y-direction moving unit 17, the X-direction moving unit 18, and the Z-direction moving unit 19 can move the stage 11 in the Y direction, the X direction, the Z direction, and the ⁇ direction in the figure, and place the wafer W thereon.
- the stage 11 to be opposed is made to face the probe card 16.
- the Z-direction moving unit 19 moves the stage 11 toward the probe card 16 along the Z direction in the figure, and brings the electrode pads of the semiconductor device on the wafer W into contact with the probe needles 35.
- a probe card holder guide 20 (probe card exchange mechanism) is disposed adjacent to the stage 11.
- the probe card holder guide 20 has a bifurcated fork 21 that can hold a probe card holder for holding the probe card 16, and is configured to be movable in the Y direction and the Z direction in the figure.
- the fork 21 of the probe card holder guide 20 moves in the Y direction in the figure to face the probe card 16, and further moves toward the probe card 16 in the Z direction in the figure.
- the probe card 16 is received together with the probe card holder and carried out of the main body 12. The operator removes the probe card holder from the main body 12 from the outside of the main body 12.
- an ASU camera 22, a needle tip polishing unit 23 (needle tip polishing mechanism), and a probe head holder 24 (moving mechanism) are arranged inside the main body 12 between the stage 11 and the probe card holder guide 20. Furthermore, an alignment bridge 25 is disposed above the stage 11.
- the ASU camera 22, the needle tip polishing unit 23, and the probe head holder 24 are connected to the stage 11 and configured to be movable together with the stage 11 in the X direction and the Y direction in the figure. 24 is configured to be movable separately from the stage 11 in the Z direction in the figure, and the probe head holder 24 is configured to be rotatable in the ⁇ direction in the figure with an axis along the Z direction in the figure as a central axis.
- the alignment bridge 25 is configured to be movable in the Y direction in the figure.
- the ASU camera 22 moves so as to face the alignment bridge 25 and detects a position confirmation mark (not shown) provided on the alignment bridge 25 to confirm the accurate position of the stage 11 inside the main body 12.
- the needle tip polishing unit 23 moves toward the probe card 16 and polishes the needle tip of each probe needle 35 in the probe head 30 of the probe card 16.
- the probe head holder 24 holds the probe head 30 and moves toward the probe card 16, and attaches the probe head 30 to the probe card 16 as shown in FIGS. 3A to 3B and 4A to 4B described later. Alternatively, the probe head 30 is received from the probe card 16. Thereby, the probe head holder 24 can replace the probe head 30 of the probe card 16.
- a stocker 26 capable of accommodating a plurality of probe heads 30 is disposed in the vicinity of the probe head holder 24, and a probe head supply unit 28 having an arm 27 is disposed between the stocker 26 and the probe head holder 24.
- the probe head supply unit 28 takes out the replacement probe head 30 from the stocker 26 and holds it to the probe head holder 24. Also, the probe head 30 held by the probe head holder 24 and removed from the probe card 16 is transferred to the stocker 26. Accommodate. Since the stocker 26 and the probe head supply unit 28 are arranged in the vicinity of the probe head holder 24 inside the main body 12, the replacement probe head 30 can be delivered to the probe head holder 24 in a short time, and thus the probe The head 30 can be replaced in a short time.
- the probe head holder 24 has two position confirmation marks 29 on the facing surface 24a facing the alignment bridge 25, while the alignment bridge 25 has a camera (not shown) directed to the probe head holder 24, which is a probe.
- the position of the probe head holder 24 is confirmed by detecting each position confirmation mark 29 on the head holder 24.
- the probe head holder 24 is moved based on the position confirmed by the camera and faces the probe card 16.
- 3A to 3B are process diagrams showing a method of mounting the probe head to the probe card in the prober of FIG. 3A to 3B, a tiltable clamp 31 is provided in the probe card 16 where the probe head 30 is mounted.
- the probe head holder 24 holds the replacement probe head 30 by the probe head supply unit 28, and the probe head holder 24 moves toward the probe card 16 along the Z direction in FIG. 2 (FIG. 3A).
- FIG. 4A to 4B are process diagrams showing another method of mounting the probe head to the probe card in the prober of FIG. 4A to 4B, a cylindrical clamp 33 having a flange 32 partially at the tip is provided at the mounting position of the probe head 30 in the probe card 16, and a flange 34 is partially provided at the periphery of the probe head 30. It is done.
- the probe head supply unit 28 holds the probe head 30 for replacement in the probe head holder 24, and the probe head holder 24 moves toward the probe card 16 along the Z direction in FIG. 2 (FIG. 4A).
- the probe head 30 is rotated with respect to the clamp 33 in the ⁇ direction in FIG. 2, and the flange 34 of the probe head 30 is engaged with the flange 32 of the clamp 33. This holds the probe head 30 (FIG. 4B).
- the probe head holder 24 is disposed inside the main body 12 and includes the probe head holder 24 that holds the probe head 30 and is movable toward the probe card 16.
- the probe head 30 can be moved toward the probe card 16, and the probe head 30 can be exchanged without detaching the probe card 16 from the main body 12.
- the probe head 30 can be easily replaced.
- the probe head 30 can be replaced without bothering the operator, and it is not necessary to remove the heavy probe card 16 when replacing the probe head 30. , Can reduce the burden on the operator and increase the safety of the work.
- the probe head holder 24 is provided independently of the stage 11, the probe card holder guide 20, the ASU camera 22, and the needle tip polishing unit 23 provided in the conventional prober, thereby realizing the present invention. Only the probe head holder 24 may be added to the conventional prober. Further, since the added probe head holder 24 only holds the relatively light and small probe head 30, it is not necessary to strengthen the structure of the probe head holder 24, so that the probe head holder 24 can be constructed with a simple structure. Can be realized.
- the probe head holder 24 is configured to be rotatable in the ⁇ direction about the axis along the Z direction in FIG. 2, the probe head 30 is inserted into the clamp 33 of the probe card 16. Then, the probe head 30 can be rotated in the ⁇ direction to engage the flange 34 of the probe head 30 with the flange 32 of the clamp 33. As a result, even the probe head 30 with the flange 34 can be easily replaced.
- the position of the probe head holder 24 can be accurately grasped, and thus the probe head holder The relative position between the probe card 16 and the probe card 16 can be adjusted accurately.
- the probe head 30 can be moved with the probe head holder 24 facing the clamp 33 of the probe card 16 with the probe head 30 facing the clamp 33 accurately, and the probe head 30 can be exchanged reliably.
- the probe head holder 24 may have a vacuum hole 36 (vacuum suction mechanism) that opens to the facing surface 24 a, and when holding the probe head 30, The probe head 30 may be vacuum-sucked to the probe head holder 24 by applying a negative pressure to the vacuum hole 36. Thereby, when the probe head holder 24 moves toward the probe card 16, the probe head 30 can be prevented from being displaced relative to the probe head holder 24.
- a vacuum hole 36 vacuum suction mechanism
- the probe head holder 24 when the probe head holder 24 receives the probe head 30 from the probe head supply unit 28 or the probe card 16, it may be determined whether or not negative pressure can be applied to the vacuum hole 36.
- the negative pressure can be applied to the vacuum hole 36, it is nothing but the case where the probe head 30 is adsorbed to the probe head holder 24. Therefore, by determining whether or not the negative pressure can be applied to the vacuum hole 36, It can be determined whether or not the probe head holder 24 has received the probe head 30.
- the probe head holder 24 is not provided with a vacuum hole 36 and is not vacuum-adsorbed to the probe head holder 24, a pin is provided on the probe head holder 24 and a pin hole or notch that engages with the pin is provided on the probe head 30. By providing, it is preferable to prevent the probe head 30 from being displaced relative to the probe head holder 24.
- the probe head holder 24 has two position confirmation marks 29 on the facing surface 24a.
- the two position confirmation marks 29 are arranged diagonally on the facing surface 24a. May be.
- the position of the probe head holder 24 in the rotational direction can be accurately grasped, and thus the probe head holder 24 in the rotational direction and The relative position of the probe card 16 can be adjusted accurately.
- the present embodiment is basically the same in configuration and operation as the first embodiment described above, and does not include the probe head holder 24 provided independently, and the probe card holder guide 20 replaces the probe head 30. It differs from the first embodiment described above in that it has a probe head holder 38 that can be held and moved toward the probe card 16. Therefore, the description of the duplicated configuration and operation is omitted, and the description of the different configuration and operation is given below.
- FIG. 7 is a perspective view schematically showing a configuration inside the main body of the prober according to the present embodiment.
- the probe card holder guide 20 of the prober 37 has a probe head holder 38 that can hold the probe head 30.
- the probe head holder 38 is configured to be movable with respect to the Y direction and the Z direction in the drawing together with the probe card holder guide 20. However, the probe head holder 38 can be moved separately from the fork 21 of the probe card holder guide 20 with respect to the Z direction. It moves toward the probe card 16 together with the probe head 30 configured and held, and the probe head 30 is attached to the probe card 16 as shown in FIGS. 8A to 8C described later, or from the probe card 16 to the probe head 30. Receive. Thereby, the probe head holder 38 can replace the probe head 30 of the probe card 16.
- the probe head holder 38 is normally positioned below the fork 21 in the Z direction in the figure so that it does not interfere with the probe card holder when the probe card holder guide 20 holds the probe card holder.
- FIG. 8A to 8C are process diagrams showing a method of mounting the probe head to the probe card in the prober of FIG. 8A to 8C, a tiltable clamp 31 is provided at the mounting position of the probe head 30 in the probe card 16.
- the probe head holder 38 moves in the Y direction in FIG. 7 together with the probe card holder guide 20 and advances to the outside of the main body 12, and then receives and holds the probe head 30 from the operator.
- the probe head holder 38 moves in the Y direction in FIG. 7 together with the probe card holder guide 20 and enters the inside of the main body 12, and then faces the clamp 31 of the probe card 16 (FIG. 8A).
- the probe head holder 38 moves separately from the fork 21 of the probe card holder guide 20 along the Z direction in FIG. 7 and moves toward the probe card 16 (FIG. 8B).
- the probe head holder 38 can replace the probe head 30 in the probe card 16.
- the probe card holder guide 20 holds the probe head 30 and is movable toward the probe card 16 separately from the fork 21 of the probe card holder guide 20. 38, the probe head 30 can be moved toward the probe card 16 by the probe head holder 38, so that the probe head 30 can be easily replaced.
- the operator can easily hold the probe head 30 to the probe head holder 38. .
- the present embodiment is basically the same in configuration and operation as the first embodiment described above, has no probe head holder 24 provided independently, and the stage 11 has a probe head adapter 40. This is different from the above-described first embodiment. Therefore, the description of the duplicated configuration and operation is omitted, and the description of the different configuration and operation is given below.
- FIG. 9 is a perspective view schematically showing a configuration inside the main body of the prober according to the present embodiment.
- the stage 11 of the prober 39 has a probe head adapter 40 that is detachable from the stage 11 and can hold the probe head 30.
- the probe head adapter 40 is placed on the top of the stage 11 and moves with the stage 11 in the X direction, the Y direction, and the Z direction in the figure.
- the probe head adapter 40 holds the probe head 30 and moves together with the stage 11 toward the probe card 16, and attaches the probe head 30 to the probe card 16 as shown in FIGS. 11A to 11B described later.
- the probe head 30 is received from the probe card 16.
- the probe head adapter 40 can replace the probe head 30 of the probe card 16.
- the probe head adapter 40 has two position confirmation marks 29 on the facing surface 40a facing the alignment bridge 25. Each position confirmation mark 29 is detected by the camera of the alignment bridge 25, and the position of the probe head adapter 40 is detected. Is confirmed. When the probe head 30 is exchanged by the probe head adapter 40, the probe head adapter 40 is moved based on the position confirmed by the camera to face the probe card 16.
- the two position confirmation marks 29 may be arranged diagonally on the facing surface 40a.
- the probe head adapter 40 has a vacuum hole 41 that opens to the opposing surface 40a and communicates with the vacuum hole 42 of the stage 11 (see FIG. 11A described later).
- a negative pressure is applied to the vacuum hole 41 through the vacuum hole 42 to cause the probe head 30 to be vacuum-adsorbed to the probe head adapter 40.
- the probe head adapter 40 moves toward the probe card 16
- the probe head 30 can be prevented from being displaced relative to the probe head adapter 40.
- the probe head adapter 40 is pressed against the stage 11 by the probe head 30 that is vacuum-sucked, it is possible to prevent the probe head adapter 40 from being displaced relative to the stage 11.
- FIG. 10 is a perspective view schematically showing a configuration inside the main body of a modified example of the prober according to the present embodiment.
- the probe tip polishing unit 23 of the prober 43 has a probe head adapter 44 that is detachable from the probe tip polishing unit 23 and can hold the probe head 30.
- the probe head adapter 44 is placed on the top of the needle tip polishing unit 23 and moves with the needle tip polishing unit 23 in the X direction, Y direction, and Z direction in the figure.
- the probe head adapter 44 holds the probe head 30 and moves together with the needle tip polishing unit 23 toward the probe card 16 to replace the probe head 30 of the probe card 16.
- the probe head adapter 44 has two position confirmation marks 29 on the facing surface 44 a facing the alignment bridge 25, and each position confirmation mark 29 is detected by the camera of the alignment bridge 25 to detect the position of the probe head adapter 44. Is confirmed.
- the probe head adapter 44 is moved based on the position confirmed by the camera so as to face the probe card 16.
- the two position confirmation marks 29 may be arranged diagonally on the facing surface 44a.
- the probe head adapter 44 has a vacuum hole 46 that opens to the opposing surface 44a and communicates with a vacuum hole 45 (vacuum suction mechanism) of the needle tip polishing unit 23 (see FIG. 11A described later).
- a negative pressure is applied to the vacuum hole 46 through the vacuum hole 45 to cause the probe head 30 to be vacuum-adsorbed to the probe head adapter 44.
- the probe head adapter 44 moves toward the probe card 16
- the probe head 30 can be prevented from being displaced relative to the probe head adapter 44.
- the probe head adapter 44 is pressed against the needle tip polishing unit 23 by the probe head 30 that is vacuum-sucked, it is possible to prevent the probe head adapter 44 from being displaced relative to the needle tip polishing unit 23. .
- FIG. 11A to FIG. 11B are process diagrams showing a method of attaching the probe head to the probe card in the prober of FIG. 9 and FIG.
- a tiltable clamp 31 is provided at the probe card 30 where the probe head 30 is mounted.
- the mounting process of the probe head 30 in the prober 39 in FIG. 9 will be mainly described.
- the prober 43 in FIG. This will be explained using writing.
- the replacement probe head 30 is held on the probe head adapter 40 (probe head adapter 44), and the probe head adapter 40 (probe head adapter 44) together with the stage 11 (needle tip polishing unit 23) is shown in FIG. It moves toward the probe card 16 along the middle Z direction (FIG. 11A).
- probe head adapter 40 can replace the probe head 30 in the probe card 16.
- the stage 11 that is movable toward the probe card 16 has the probe head adapter 40 that holds the probe head 30, and therefore the probe held by the probe head adapter 40 by the stage 11.
- the head 30 can be moved toward the probe card 16, so that the probe head 30 can be easily replaced.
- the needle tip polishing unit 23 that is movable toward the probe card 16 has the probe head adapter 44 that holds the probe head 30.
- the probe head 30 held by the probe head 30 can be moved toward the probe card 16, so that the probe head 30 can be easily replaced.
- a negative pressure is applied to the vacuum hole 41 and the vacuum hole 46 via the vacuum hole 42 and the vacuum hole 45 so that the probe head 30 is vacuum-adsorbed to the probe head adapter 40 and the probe head adapter 44.
- the probe head adapter 40 or the probe head adapter 44 receives the probe head 30 from the operator or the probe card 16, it may be determined whether or not negative pressure can be applied to the vacuum hole 42 or the vacuum hole 45. Thereby, it can be determined whether the probe head adapter 40 or the probe head adapter 44 has received the probe head 30.
- the prober 39 and the prober 43 described above can be configured simply by adding the probe head adapter 40 and the probe head adapter 44 to the stage 11 and the needle tip polishing unit 23 provided in the conventional prober, so that existing equipment can be used effectively. It is possible to avoid unnecessary capital investment.
- Probe head adapter W Wafer 10, 39, 43 Prober 11 Stage 12 Main body 20 Probe card holder guide 23 Needle tip polishing unit 24, 38 Probe head holder 24a, 40a, 44a Opposing surface 26 Stocker 29 Position confirmation mark 30 Probe head 35 Probe needle 36, 42,45 Vacuum hole 40,44 Probe head adapter
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
- Health & Medical Sciences (AREA)
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- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
Description
[図2]図1のプローバの本体の内部における構成を概略的に示す斜視図である。
[図3A乃至図3B]図1のプローバにおけるプローブカードへのプローブヘッドの装着方法を示す工程図である。
[図4A乃至図4B]図1のプローバにおけるプローブカードへのプローブヘッドの別の装着方法を示す工程図である。
[図5]図2におけるプローブヘッドホルダの変形例の構成を示す断面図である。
[図6]図2における位置確認用マークの配置の変形例を示す図である。
[図7]本発明の第2の実施の形態に係るプローバの本体の内部における構成を概略的に示す斜視図である。
[図8A乃至図8C]図7のプローバにおけるプローブカードへのプローブヘッドの装着方法を示す工程図である。
[図9]本実施の形態に係るプローバの本体の内部における構成を概略的に示す斜視図である。
[図10]本実施の形態に係るプローバの変形例の本体の内部における構成を概略的に示す斜視図である。
[図11A乃至図11B]図9及び図10のプローバにおけるプローブカードへのプローブヘッドの装着方法を示す工程図である。
[図12]プローブヘッドを有するプローブカードの構成を概略的に示す斜視図である。
[図13A乃至図13B]図12のプローブカードへのプローブヘッドの装着方法を示す工程図である。
[図14A乃至図14E]図12のプローブカードへのプローブヘッドの別の装着方法を示す工程図である。
10,39,43 プローバ
11 ステージ
12 本体
20 プローブカードホルダガイド
23 針先研磨ユニット
24,38 プローブヘッドホルダ
24a,40a,44a 対向面
26 ストッカ
29 位置確認用マーク
30 プローブヘッド
35 プローブ針
36,42,45 バキューム穴
40,44 プローブヘッドアダプタ
Claims (12)
- 本体と、該本体の内部に配置されて基板を載置するステージと、前記本体の内部に配置され且つ前記ステージに対向するプローブカードとを備え、前記プローブカードは当該プローブカードから着脱可能であり且つ複数のプローブ針が配置されたプローブヘッドを有するプローバであって、
前記本体の内部に配置されるとともに、前記プローブヘッドを保持して前記プローブカードへ向けて移動可能な移動機構を備えることを特徴とするプローバ。 - 前記移動機構は移動方向に沿う軸を中心軸として回動可能に構成されることを特徴とする請求項1記載のプローバ。
- 前記本体の内部に配置されて前記プローブヘッドを収容可能なストッカをさらに備えることを特徴とする請求項1又は2記載のプローバ。
- 前記移動機構の位置確認用のカメラをさらに備え、該カメラは前記移動機構に設けられた位置確認用のマークを検知することを特徴とする請求項1乃至3のいずれか1項に記載のプローバ。
- 前記移動機構は前記プローブカードに対向し且つ2つの前記位置確認用のマークが配置された対向面を有し、該対向面において前記2つの位置確認用のマークは対角に配置されることを特徴とする請求項4記載のプローバ。
- 前記移動機構は前記プローブヘッドを真空吸着可能な真空吸着機構を有し、前記真空吸着機構に負圧を印加可能か否かが判定されることを特徴とする請求項1乃至5のいずれか1項に記載のプローバ。
- 本体と、該本体の内部に配置されて基板を載置するステージと、前記本体の内部に配置され且つ前記ステージに対向するプローブカードと、該プローブカードを交換するために前記プローブカードへ向けて移動可能なプローブカード交換機構とを備え、前記プローブカードは当該プローブカードから着脱可能であり且つ複数のプローブ針が配置されたプローブヘッドを有するプローバであって、
前記プローブカード交換機構は、前記プローブヘッドを保持し且つ当該プローブカード交換機構とは別個に前記プローブカードへ向けて移動可能な移動機構を有することを特徴とするプローバ。 - 本体と、該本体の内部に配置されて基板を載置するステージと、前記本体の内部に配置され且つ前記ステージに対向するプローブカードとを備え、前記プローブカードは当該プローブカードから着脱可能であり且つ複数のプローブ針が配置されたプローブヘッドを有するプローバであって、
前記ステージは、前記プローブカードへ向けて移動可能に構成され、さらに、前記ステージから着脱可能であり且つ前記プローブヘッドを保持するアダプタを有することを特徴とするプローバ。 - 前記ステージは前記アダプタを介して前記プローブヘッドを真空吸着可能な真空吸着機構を有し、前記真空吸着機構に負圧を印加可能か否かが判定されることを特徴とする請求項8記載のプローバ。
- 本体と、該本体の内部に配置されて基板を載置するステージと、前記本体の内部に配置され且つ前記ステージに対向するプローブカードとを備え、前記プローブカードは当該プローブカードから着脱可能であり且つ複数のプローブ針が配置されたプローブヘッドを有するプローバであって、
前記プローブカードへ装着されたプローブヘッドの各プローブ針の針先を研磨する針先研磨機構をさらに備え、
前記針先研磨機構は、前記プローブカードへ向けて移動可能に構成され、さらに、前記針先研磨機構から着脱可能であり且つ前記プローブヘッドを保持するアダプタを有することを特徴とするプローバ。 - 前記ステージは前記アダプタを介して前記プローブヘッドを真空吸着可能な真空吸着機構を有し、前記真空吸着機構に負圧を印加可能か否かが判定されることを特徴とする請求項10記載のプローバ。
- プローブカードを備え、前記プローブカードは当該プローブカードから着脱可能であり且つ複数のプローブ針が配置されたプローブヘッドを有するプローバであって、
前記プローブヘッドを保持して前記プローブカードへ向けて移動可能な移動機構を備えることを特徴とするプローバ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP14831396.8A EP3012645A4 (en) | 2013-08-01 | 2014-06-06 | Prober |
KR1020167001739A KR101794979B1 (ko) | 2013-08-01 | 2014-06-06 | 프로버 |
CN201480043403.2A CN105452887B (zh) | 2013-08-01 | 2014-06-06 | 探针装置 |
US14/907,616 US10082524B2 (en) | 2013-08-01 | 2014-06-06 | Prober in which probe head of probe card is replaced automatically |
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JP2013160764A JP6220596B2 (ja) | 2013-08-01 | 2013-08-01 | プローバ |
JP2013-160764 | 2013-08-01 |
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PCT/JP2014/065664 WO2015015921A1 (ja) | 2013-08-01 | 2014-06-06 | プローバ |
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US (1) | US10082524B2 (ja) |
EP (1) | EP3012645A4 (ja) |
JP (1) | JP6220596B2 (ja) |
KR (1) | KR101794979B1 (ja) |
CN (1) | CN105452887B (ja) |
TW (1) | TWI638172B (ja) |
WO (1) | WO2015015921A1 (ja) |
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CN110320461A (zh) * | 2019-06-15 | 2019-10-11 | 泰州市旺灵绝缘材料厂 | 一种电路板测试装置 |
JP7310345B2 (ja) * | 2019-06-17 | 2023-07-19 | ニデックアドバンステクノロジー株式会社 | 検査装置 |
JP7398253B2 (ja) * | 2019-11-26 | 2023-12-14 | 株式会社ヨコオ | 治具 |
KR102231941B1 (ko) * | 2020-04-10 | 2021-03-25 | 위드시스템 주식회사 | 단자 얼라인장치 |
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KR101794979B1 (ko) | 2017-11-07 |
US10082524B2 (en) | 2018-09-25 |
EP3012645A1 (en) | 2016-04-27 |
TW201520565A (zh) | 2015-06-01 |
TWI638172B (zh) | 2018-10-11 |
EP3012645A4 (en) | 2017-06-21 |
JP2015031578A (ja) | 2015-02-16 |
KR20160039186A (ko) | 2016-04-08 |
CN105452887A (zh) | 2016-03-30 |
CN105452887B (zh) | 2018-09-14 |
JP6220596B2 (ja) | 2017-10-25 |
US20160161527A1 (en) | 2016-06-09 |
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