WO2006123592A1 - 位置決めステージ、それを用いたバンプ形成装置およびバンプ形成方法 - Google Patents
位置決めステージ、それを用いたバンプ形成装置およびバンプ形成方法 Download PDFInfo
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- WO2006123592A1 WO2006123592A1 PCT/JP2006/309603 JP2006309603W WO2006123592A1 WO 2006123592 A1 WO2006123592 A1 WO 2006123592A1 JP 2006309603 W JP2006309603 W JP 2006309603W WO 2006123592 A1 WO2006123592 A1 WO 2006123592A1
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- bump forming
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68728—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a plurality of separate clamping members, e.g. clamping fingers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/0623—Solder feeding devices for shaped solder piece feeding, e.g. preforms, bumps, balls, pellets, droplets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68707—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a robot blade, or gripped by a gripper for conveyance
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/11—Manufacturing methods
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies
- H01L24/741—Apparatus for manufacturing means for bonding, e.g. connectors
- H01L24/742—Apparatus for manufacturing bump connectors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/40—Semiconductor devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/11—Manufacturing methods
- H01L2224/113—Manufacturing methods by local deposition of the material of the bump connector
- H01L2224/1133—Manufacturing methods by local deposition of the material of the bump connector in solid form
- H01L2224/1134—Stud bumping, i.e. using a wire-bonding apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
- H01L2224/13099—Material
- H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/13138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/13144—Gold [Au] as principal constituent
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00013—Fully indexed content
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01004—Beryllium [Be]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01005—Boron [B]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01006—Carbon [C]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01013—Aluminum [Al]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01033—Arsenic [As]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01078—Platinum [Pt]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01079—Gold [Au]
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/013—Alloys
- H01L2924/014—Solder alloys
Definitions
- the present invention relates to a positioning stage, a bump forming apparatus using the positioning stage, and a bump forming method.
- a positioning stage for positioning a wafer is used in a manufacturing process of an electronic component.
- the wafer 1 is supported by the wafer receiving portion 66 at the tip of the support arm 65, and the regulating arm 72 is supported by the support arm 65 in a state where the positioning roller 67 is positioned outside the outer edge of the wafer 1.
- the wafer 1 is moved with respect to 65, and the wafer 1 is clamped with an appropriate load by the positioning roller 67 and the position regulating roller 74 using the biasing force of the spring (see, for example, Patent Document 1).
- a contact member for static elimination is attached to a wafer placed on a positioning stage such as a bump forming apparatus. It is necessary to abut and remove the charge.
- a mortar-shaped hole 14166 is provided in the static elimination member 1416, a ground wire 14109 is attached to a ball 14115 at one end of the static elimination contact member 14121, and a ball 14105 at the other end is attached by a spring 14162.
- the surface of the wafer is grounded by pressing it and bringing the contact member 14121 for static elimination into contact with the wafer surface (see, for example, Patent Document 2).
- Patent Document 1 JP-A-10-163214 (FIG. 11)
- Patent Document 2 JP 2000-210664 (Fig. 20)
- the present invention is to provide a positioning stage, a bump forming apparatus and a bump forming method using the same, which can prevent an excessive force from acting on a positioned wafer. It is what.
- the present invention provides a positioning stage configured as follows.
- the positioning stage is a wafer mounting surface on which a wafer is mounted, and a positioning member adjacent to the wafer mounted on the wafer mounting surface and extending substantially at right angles to the wafer mounting surface. And a biasing member that abuts against the wafer placed on the wafer placement surface and resiliently biases the wafer toward the positioning member.
- the urging member has an abutting surface that is substantially opposed obliquely to the wafer mounting surface, and the corresponding contacting surface abuts in the vicinity of the outer edge of the wafer mounted on the wafer mounting surface. The wafer is biased in an oblique direction with respect to the wafer mounting surface.
- the abutting surface of the urging member urges the vicinity of the outer edge of the wafer placed on the wafer placing surface substantially toward the positioning member. Since the contact surface is inclined with respect to the wafer mounting surface, a component force parallel to the wafer mounting surface and a component force perpendicular to the wafer mounting surface and directed to the wafer mounting surface act on the wafer. . The latter component forces the wafer against the wafer mounting surface. As a result, the wafer can be biased to the positioning member while preventing the wafer mounting surface force from being lifted, and the wafer is positioned by simply applying a parallel force along the wafer mounting surface. Compared to the case of energizing, the force can be prevented from acting on the wafer.
- At least the contact surface of the urging member has conductivity.
- the present invention provides a positioning step configured as follows. Provide
- the positioning stage includes a wafer placement surface on which the wafer is placed, and a positioning member that is adjacent to the wafer placed on the wafer placement surface and extends substantially at right angles to the wafer placement surface. It is the type with The positioning stage includes an elastic deformation member that holds the positioning member in a positioning position that contacts the wafer placed on the wafer placement surface and positions the wafer at a predetermined position. The elastic deformation member moves the positioning member from the positioning position when a biasing force exceeding a predetermined size is applied to the positioning member in a direction substantially opposite to the wafer mounted on the wafer mounting surface. It is elastically deformed so as to be retracted in a direction substantially opposite to the wafer placed on the wafer placement surface.
- the positioning member that contacts the wafer retreats the positioning position force due to the inertial deformation of the elastic deformation member, so that a force exceeding a predetermined magnitude does not act on the wafer from the positioning member. Can be. As a result, it is possible to prevent an excessive force from acting on the positioned wafer.
- the elastic deformation member a leaf spring, a bimetal structure, or the like can be used.
- the bimetal structure When the bimetal structure is used, the inertial deformation member itself is spontaneously deformed by the temperature change caused by the heating of the positioning stage, and the generation of stress can be prevented.
- the present invention provides a bump forming apparatus configured as follows in order to solve the above problems.
- the bump forming apparatus includes at least two positioning stages having any of the above-described configurations.
- stage a heating means for heating the wafer placed on the wafer placement surface of each stage, the bump formation position facing the bonding apparatus, and the stage.
- Stage moving means for integrally moving between the bump forming position and the retracted position.
- Each stage is sequentially moved to the bump forming position by the stage moving means, and bumps are formed by the bonding apparatus on the wafer placed on the wafer placing surface of the stage at the bump forming position.
- the wafer placement surface force of the other stage at the retracted position is removed, and the wafer on which the bump is formed is then placed on the wafer placement surface of the stage. And heated by the heating means.
- the heating means may be provided inside or outside each stage.
- the present invention provides a bump forming method configured as follows.
- the bump forming method includes at least two positioning stages having any of the above-described configurations.
- stage (Hereinafter simply referred to as “stage”), and bumps are sequentially formed on the wafer placed on the wafer placement surface of each stage.
- the bump forming method at least one of the stages is disposed at a bump forming position facing the bonding apparatus, while at least one other stage is moved to a retracted position where the stage is retracted from the bump forming position.
- bumps are formed by the bonding apparatus on the wafer placed on the wafer placement surface of the stage placed at the bonding position,
- the wafer on which the bump is formed is removed from the wafer placement surface of the stage placed at the retracted position, and the wafer on which the bump is to be formed is placed on the wafer placement surface of the stage and heated.
- the positioning stage of the present invention and the bump forming apparatus and bump forming method using the same, it is possible to prevent an excessive force from acting on the positioned wafer.
- FIG. 1 is an explanatory diagram of a wafer positioning mechanism. (Conventional example)
- FIG. 2 is an explanatory diagram of a static elimination mechanism. (Conventional example)
- FIG. 3 is a plan view of a bump forming apparatus. (Example)
- FIG. 4 is a configuration diagram of a stage moving device. (Example)
- FIG. 5 is an explanatory diagram of the operation of the bump forming apparatus. (Example)
- FIG. 6 is an explanatory diagram of a wafer delivery operation. (Example)
- FIG. 7 is an explanatory diagram of a wafer delivery operation. (Example)
- FIG. 8 is an explanatory diagram of a wafer delivery operation. (Example)
- FIG. 9 is an explanatory diagram of a wafer delivery operation. (Example)
- FIG. 10 is a cross-sectional view showing a configuration of a stage. (Example)
- FIG. 11A is a plan view showing the configuration of the stage
- FIG. 11B is a cross-sectional view.
- Stage moving device (Stage moving means)
- the bump forming apparatus 10 includes two heat stages 21, 2
- Bumps are alternately formed on the wafer 2 placed on 2.
- Wafer 2 is made of, for example, LiTaO (tank) for forming a surface wave filter (SAW filter). It is a piezoelectric material with pyroelectric properties such as lithium talate) or LiNbO (lithium niobate).
- the ground electrode is formed in the vicinity of the outer edge of the wafer 2.
- the two heat stages 21 and 22 are integrally moved left and right (X direction) by the stage moving device 20, and each heat stage 21 and 22 is bonded.
- the bumps are alternately arranged at the bump formation positions located immediately below the bonding head 40 of the apparatus.
- the bonding head 40 forms bumps on the wafer 2 placed on the heat stages 21 and 22 at the bump formation positions.
- a wafer magazine 12 for supply and a wafer magazine 14 for storage are arranged on both sides of the stage moving device 20.
- heat stages 21 and 22 are fixed on one moving table 23 that moves left and right (X direction).
- the moving table 23 is driven by an actuator such as a motor (not shown) and moves between two left and right positions.
- the heat stages 21 and 22 are moved together by the movement of the moving table 23.
- the heat stages 21 and 22 are arranged at bump forming positions where the right heat stage 22 is located directly below the bonding head 40, as indicated by the solid line. Is done.
- the left heat stage 21 is disposed at a position other than the bump forming position, that is, at the retracted position.
- the left heat stage 21 is disposed at a bump forming position positioned directly below the bonding head 40.
- the right heat stage 22 is arranged at a position other than the bump formation position, that is, at the retreat position, as shown by a chain line 22a.
- Each of the heat stages 21 and 22 includes a heater (not shown) so that the mounted wafer 2 is heated to a predetermined temperature before bumps are formed on the mounted wafer 2. It has been.
- the wafer 2 is transferred by the transfer device 30 that moves along the stage moving device 20 and the wafer magazines 12 and 14.
- the transfer device 30 is positioned so as to face the wafer magazines 12 and 14, and an arm 32 (see FIGS. 6 to 9) described later moves forward and backward (Y direction). Weno 2 is delivered to wafer magazines 12 and 14.
- the moving table 23 that is, the heat stages 21, 22 are located on the left side indicated by the solid line, as shown by the reference numeral 30b, it faces the heat stage 21 on the left side in the retracted position, with respect to the heat stage 21. Then hand over wafer 2.
- the moving table 23 that is, the heat stages 21 and 22 are located on the right side, as shown by reference numeral 30c, it faces the right heat stage 22 in the retracted position and transfers the wafer 2 to the heat stage 22.
- the transfer device 30 transfers the wafer 2 from the supply wafer magazine 12 to the stages 21 and 22 at different periods, or from the stages 21 and 22 to the storage wafer magazine 14 for wafer transfer.
- Transport 2
- the transfer device 30 is positioned at a position 30a facing the supply wafer magazine 12.
- the wafer 2 is transported to a position 30b facing the left heat stage 21, and as indicated by an arrow L3, the wafer 2 is placed on the left heat stage 21 and placed at a predetermined position. Position it. Then, the wafer 2 placed on the left heat stage 21 is heated to a predetermined temperature (110 to 130 ° C.).
- the stage moving device 20 causes the heat stages 21 and 22 to move integrally to the right side, and is placed on the left heat stage 21 so as to have a predetermined temperature (110 to 13).
- a predetermined temperature 110 to 13
- bumps are formed by the bonding head 40 at the bump formation position immediately below the bonding head 40 of the bonding apparatus.
- the coordinates of the figure on the wafer 2 and the coordinates of the XY table of the bonding head 40 are calibrated to obtain a predetermined temperature (110
- An Au ball is formed on the wafer 2 whose temperature has been increased to 130 ° C. by using an Au wire with the bonding head 40.
- the formed ball is bump bonded (metal bonded) to the A1 electrode of Ueno 2 using a combination of heat at a predetermined temperature of the heat stage 21 and ultrasonic vibration. This bump The forming operation is performed over the entire wafer 2.
- the transfer device 30 moves to a position 30c facing the right heat stage 22, and, as indicated by an arrow R4, removes the wafer 2 having bumps formed thereon from the right heat stage 22. . Then, the wafer 2 on which the bumps are formed is transported to the position 30d facing the storage wafer magazine 14 as indicated by an arrow R5, and is transferred to the storage wafer magazine 14 as indicated by an arrow R6. Store. Next, at the position 3 Oa facing the supply wafer magazine 12, the wafer 2 is taken out from the supply wafer magazine 12 as indicated by an arrow R 1.
- the wafer 2 is transferred to a position 30c facing the right heat stage 22, and the wafer 2 is placed on the right heat stage 22 as shown by the arrow R3.
- the wafer 2 placed on the right heat stage 22 is heated to a predetermined temperature.
- the heat stages 21 and 22 are integrally formed by the stage moving device 20 as shown in FIG. 5 (c). Move to the left.
- the left heat stage 21 ejects air from an air hole 24t (see FIG. 10) of the stage main body 24, which will be described later, and lowers the mounted wafer 2 to a predetermined temperature drop (70 to 90 ° C.).
- a predetermined temperature drop for example, 80 ° C.
- the clamp arm 26 is opened and the wafer 2 is transferred to the storage wafer magazine 14.
- the transfer device 30 moves to a position 30b that faces the left heat stage 21, and takes out the wafer 2 and the bump 2 on which the bump is formed, as indicated by an arrow L4. Then, the wafer 2 on which the bumps are formed is transported to a position 30d facing the storage wafer magazine 14 as indicated by an arrow L5, and is horizontally placed on the storage wafer magazine 14 as indicated by an arrow L6. Store in the packed state.
- bumps are formed on the wafer 2 placed on the right heat stage 22 by the bonding head 40 of the bonding apparatus.
- the bumps can be formed efficiently.
- the heat stages 21 and 22 are stage books on which the wafer 2 is placed.
- a plurality of lifting pins 25 appear and disappear from the upper surface 24a of the body 24.
- two positioning pins 28 projecting from the upper surface 24a and a pair of clamp arms 26 are disposed above the upper surface 24a of the stage body 24 !!
- the wafer 2 is placed when the main body 31 is at the positions 30a to 30d (see FIG. 5) facing the wafer magazines 12 and 14 (see FIG. 5) or the heat stages 21 and 22, respectively.
- the arm 3 2 moves forward or backward from the main body 31 toward the wafer magazines 12 and 14 (see FIG. 5) or the heat stages 21 and 22 side.
- the arm 32 of the transfer device 30 moves forward toward the heat stages 21, 22 as indicated by an arrow 32a in FIG.
- the pair of clamp arms 26 is open. That is, the front end side of each clamp arm 26 is retracted from the position where the wafer 2 on the upper surface 24a of the stage main body 24 of the heat stages 21, 22 is to be placed.
- the arm 32 of the transfer device 30 transfers the wafer 2 above the stage main body 24 (specifically, above the lifting pins 25), the arm 32 descends as shown by an arrow 32b in FIG. 7 to support the wafer 2. Replace with lifting pin 25. That is, the wafer 2 is supported at the upper end of the lifting pins 25.
- the arm 32 of the transfer device 30 moves backward toward the main body 31 while being lowered.
- the lifting pins 25 supporting the wafer 2 are lowered, and the wafer 2 is placed on the upper surface 24 a of the stage body 24.
- the clamp arm 26 is rotated and closed as indicated by an arrow 26a, the tip side of the clamp arm 26 abuts on one side (left side in the figure) of the wafer 2, and the wafer 2 is moved to the positioning pin 28 side.
- Energize As a result, the opposite side (right side in the figure) of the wafer 2 abuts on the positioning pins 28 and is positioned. At this time, the wafer 2 is sandwiched between the clamp arm 26 and the positioning pin 28.
- the contact portion between the clamp arm 26 and the wafer 2 is substantially opposite to the positioning pin 28.
- Side that is, Ueno, the force that biases the right side (positioning pin 28 side) when the clamp arm 26 is rotated and closed on the left side of the center when the 2 is regarded as a circle without an orientation flat part. Any location where this occurs is acceptable.
- the wafer 2 is positioned at a position where the center of the wafer 2 and the center of the stage main body 24 substantially coincide with each other, and the wafer 2 and the stage main body 24 are thermally expanded outward from the respective centers. Therefore, if the positioning pin 28 is fixed, the difference in displacement due to the difference in thermal expansion coefficient between the stage body 24 and the wafer 2 is not absorbed, and as a result, the portion where the wafer 2 is in contact with the pin is impossible. May cause damage such as breaking of the wafer 2 due to excessive force.
- the positioning pin 28 is supported by the leaf spring 27, and the difference in displacement due to the difference in thermal expansion rate between the stage body 24 and the wafer 2 is absorbed by the inertial deformation of the leaf spring 27, and This prevents excessive force from acting on wafer 2.
- the leaf spring 27 is disposed on the lower surface 24b of the stage main body 24 of the heat stages 21, 22.
- One end 27 a side of the leaf spring 27 is fixed to the lower surface 24 b of the stage body 24 by a screw 29.
- the base end side of the positioning pin 28 is fixed to the other end 27b side of the leaf spring 27.
- the positioning pin 28 is loosely fitted in a through hole 24s formed in the stage body 24, and protrudes upward from the upper surface 24a of the stage body 24! /.
- the clamp arm 26 that biases the wafer 2 is configured to bias the wafer 2 using a spring force, as will be described in detail later. 2 prevents excessive force from acting.
- the contact surface 26s in contact with the outer edge of the wafer 2 on the front end side of the clamp arm 26 is at a predetermined angle 0 (0 ° ⁇ 0 ⁇ 90 ° M with respect to the upper surface 24a of the stage main body 24. upon It is almost opposite to surface 24a.
- At least the contact surface 26s of the clamp arm 26 is conductive, and the contact surface 26s is grounded.
- the contact surface 26s of the clamp arm 26 comes into contact with the ground electrode formed in the vicinity of the outer edge of the wafer 2, and the room temperature wafer 2 having pyroelectricity is placed on the height stages 21 and 22. In the meantime, the charge generated by the temperature change is removed. Since the contact surface 26s is formed obliquely, the contact surface 26s can be reliably in contact with the ground electrode of the wafer 2 and can be reliably discharged from the wafer 2.
- the contact surface 26s generally moves in parallel toward the positioning pin 28 and contacts the vicinity of the outer edge of the wafer 2.
- a component force parallel to the upper surface 24 a of the stage main body 24 and a component force perpendicular to the upper surface 24 a of the stage main body 24 are applied to the wafer 2. Since the wafer 2 is pressed against the upper surface 24a of the stage body 24 by the latter downward component force, even if the positioning pin 28 tilts like a chain line, the wafer 2 does not float from the upper surface 24a of the stage body 24. can do.
- the stage main body 24 has air holes 24t. By sucking from the air holes 24t, the lower surface 2b of the wafer 2 placed on the upper surface 24a is sucked and held. Also, the air hole 24t force causes air to flow between the upper surface 24a and the lower surface 2b of the wafer 2 so that the wafer 2 can be lifted from the upper surface 24a during positioning, and the wafer 2 after bump formation can be cooled. .
- FIG. 11 (a) is a plan view.
- FIG. 11 (b) is a cross-sectional view taken along line BB in FIG. 11 (a).
- the opening / closing mechanisms 120 and 140 of the pair of clamp arms 26 are provided with rotating shafts 124 and 144 that pass through the stage main bodies 24 of the heat-stages 21 and 22 and are supported rotatably. The upper end of each is fixed. One end side force of the interlocking plates 126 and 146 is fixed to the lower ends of the rotating shafts 124 and 144, respectively. The other end side of each interlocking plate 126, 146 overlaps with a gap as shown in FIG. 11 (b), and through holes 127, 147 are formed in these overlapping portions, respectively. Engagement pins 132 erected on the base member 130 are loosely fitted in the respective through holes 127 and 147.
- Each interlocking plate 126, 146 is engaged with the other end of a tension spring (not shown) whose one end is locked to the lower surface of the stage body 24.
- the interlocking plates 126 and 146 are urged in the direction indicated by arrows 128 and 148 in FIG. 11 (a) by the spring force of the tension spring.
- the base member 130 on which the engaging pin 132 is erected is piled up by the spring force of the tension spring in the direction indicated by the arrow 138 and the direction indicated by the arrows 128 and 148 by driving an actuator such as an expansion cylinder (not shown).
- each interlocking plate 126, 146 is rotated so as to be releasable.
- the base member 130 moves in the direction indicated by the arrow 138, and the interlocking plates 126 and 146 are straightened as indicated by the broken lines. Overlapping the line, the clamp arm 26 is in an open state in which the tip side of the clamp arm 26 is separated from the wafer 2 as indicated by the solid line.
- Example 1 In the heat stages 21 and 22, the temperature when the wafer 2 is not placed is set to 70 to 90 ° C, and when the wafer 2 is placed, the temperature is raised to 100 to 130 ° C. To do.
- the material of the leaf spring 27 provided on the heat stages 21, 22 may be SUS304, the positioning pin 28, the clamp arm 26 may be another material having force conductivity, such as carbon steel such as S50C.
- the wafer 2 is positioned by the orientation flat side coming into contact with the two positioning pins 28 when the clamp arm 26 is closed. At this time, it is designed so that the positioning pin 28 that is in contact with the orientation flat side of the wafer 2 by the urging of the clamp arm 26 does not substantially incline or move, that is, the leaf spring 27 does not move. , So that positioning can be performed accurately.
- the positioning pin 28 is tilted or moved up and down.
- At least the contact surface 26s of the clamp arm 26 is conductive, and the contact surface 26s is grounded. While the wafer 2 is placed on the heat stages 21 and 22, the clamp arm 26 is closed, and the contact surface 26 s of the clamp arm 26 is in contact with the ground electrode formed near the outer edge of the wafer 2. As a result, it is possible to remove charges generated when the wafer 2 at room temperature having pyroelectricity is placed on the heat stages 21 and 2 and heated or lowered.
- Example 3 If the wafer processing apparatus is a pyroelectric material and has a process of causing a temperature change in the material, the stage configuration of Example 1 or 2 can be used other than the bump forming apparatus. Can be adopted.
- an apparatus having a stage for measuring the characteristics of a wafer during or after aging (b) an apparatus having a stage for thermocompression bonding a chip at a high temperature at the wafer level, and (c) at the wafer level.
- the stage configuration of Example 1 or 2 can be adopted in an apparatus having a stage that ultrasonically joins a chip together with thermocompression bonding at a high temperature.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007516271A JP4636288B2 (ja) | 2005-05-18 | 2006-05-12 | 位置決めステージ、それを用いたバンプ形成装置およびバンプ形成方法 |
CN2006800168627A CN101176201B (zh) | 2005-05-18 | 2006-05-12 | 定位载物台、使用该定位载物台的凸瘤形成装置和凸瘤形成方法 |
EP06746350.5A EP1890325B1 (en) | 2005-05-18 | 2006-05-12 | Aligning stage, bump forming apparatus and bump forming method using such aligning stage |
US11/942,320 US7508495B2 (en) | 2005-05-18 | 2007-11-19 | Positioning stage, bump forming apparatus equipped with the positioning stage, and bump forming method performed using the positioning stage |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-145259 | 2005-05-18 | ||
JP2005145259 | 2005-05-18 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/942,320 Continuation US7508495B2 (en) | 2005-05-18 | 2007-11-19 | Positioning stage, bump forming apparatus equipped with the positioning stage, and bump forming method performed using the positioning stage |
Publications (1)
Publication Number | Publication Date |
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WO2006123592A1 true WO2006123592A1 (ja) | 2006-11-23 |
Family
ID=37431167
Family Applications (1)
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PCT/JP2006/309603 WO2006123592A1 (ja) | 2005-05-18 | 2006-05-12 | 位置決めステージ、それを用いたバンプ形成装置およびバンプ形成方法 |
Country Status (5)
Country | Link |
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US (1) | US7508495B2 (ja) |
EP (2) | EP1890325B1 (ja) |
JP (2) | JP4636288B2 (ja) |
CN (1) | CN101176201B (ja) |
WO (1) | WO2006123592A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113013082A (zh) * | 2021-03-01 | 2021-06-22 | 晋美玉 | 一种晶圆检测的夹具机构 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120083129A1 (en) | 2010-10-05 | 2012-04-05 | Skyworks Solutions, Inc. | Apparatus and methods for focusing plasma |
US9478428B2 (en) | 2010-10-05 | 2016-10-25 | Skyworks Solutions, Inc. | Apparatus and methods for shielding a plasma etcher electrode |
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2006
- 2006-05-12 JP JP2007516271A patent/JP4636288B2/ja active Active
- 2006-05-12 EP EP06746350.5A patent/EP1890325B1/en active Active
- 2006-05-12 WO PCT/JP2006/309603 patent/WO2006123592A1/ja active Application Filing
- 2006-05-12 EP EP10003566.6A patent/EP2197027A3/en not_active Withdrawn
- 2006-05-12 CN CN2006800168627A patent/CN101176201B/zh active Active
-
2007
- 2007-11-19 US US11/942,320 patent/US7508495B2/en active Active
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2010
- 2010-09-13 JP JP2010204940A patent/JP5381940B2/ja active Active
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CN113013082A (zh) * | 2021-03-01 | 2021-06-22 | 晋美玉 | 一种晶圆检测的夹具机构 |
CN113013082B (zh) * | 2021-03-01 | 2022-09-13 | 深圳市容微精密电子有限公司 | 一种晶圆检测的夹具机构 |
Also Published As
Publication number | Publication date |
---|---|
US7508495B2 (en) | 2009-03-24 |
US20080068581A1 (en) | 2008-03-20 |
CN101176201A (zh) | 2008-05-07 |
EP2197027A2 (en) | 2010-06-16 |
EP2197027A3 (en) | 2017-04-26 |
JPWO2006123592A1 (ja) | 2008-12-25 |
CN101176201B (zh) | 2011-04-27 |
JP5381940B2 (ja) | 2014-01-08 |
JP2010278478A (ja) | 2010-12-09 |
EP1890325B1 (en) | 2014-01-01 |
JP4636288B2 (ja) | 2011-02-23 |
EP1890325A4 (en) | 2008-09-17 |
EP1890325A1 (en) | 2008-02-20 |
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