WO2004038779A1 - エキスパンド方法及びエキスパンド装置 - Google Patents
エキスパンド方法及びエキスパンド装置 Download PDFInfo
- Publication number
- WO2004038779A1 WO2004038779A1 PCT/JP2003/013711 JP0313711W WO2004038779A1 WO 2004038779 A1 WO2004038779 A1 WO 2004038779A1 JP 0313711 W JP0313711 W JP 0313711W WO 2004038779 A1 WO2004038779 A1 WO 2004038779A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- adhesive sheet
- plate
- expanding
- frame
- pressure
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 89
- 239000000853 adhesive Substances 0.000 claims abstract description 300
- 230000001070 adhesive effect Effects 0.000 claims abstract description 300
- 230000008569 process Effects 0.000 claims abstract description 28
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 106
- 238000003466 welding Methods 0.000 claims description 60
- 238000010438 heat treatment Methods 0.000 claims description 56
- 239000000463 material Substances 0.000 claims description 56
- 238000003825 pressing Methods 0.000 claims description 33
- 238000001179 sorption measurement Methods 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 1
- 230000008685 targeting Effects 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 abstract 1
- 235000012431 wafers Nutrition 0.000 description 65
- 238000012546 transfer Methods 0.000 description 10
- 230000009467 reduction Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- ZMJBYMUCKBYSCP-UHFFFAOYSA-N Hydroxycitric acid Chemical compound OC(=O)C(O)C(O)(C(O)=O)CC(O)=O ZMJBYMUCKBYSCP-UHFFFAOYSA-N 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/52—Mounting semiconductor bodies in containers
-
- 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
- H01L21/6835—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 temporarily an auxiliary support
-
- 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
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67132—Apparatus for placing on an insulating substrate, e.g. tape
-
- 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
- H01L21/6835—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 temporarily an auxiliary support
- H01L21/6836—Wafer tapes, e.g. grinding or dicing support tapes
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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 temporarily an auxiliary support
- H01L2221/68327—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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 temporarily an auxiliary support used during dicing or grinding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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 temporarily an auxiliary support
- H01L2221/68327—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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 temporarily an auxiliary support used during dicing or grinding
- H01L2221/68336—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus 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 temporarily an auxiliary support used during dicing or grinding involving stretching of the auxiliary support post dicing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1702—For plural parts or plural areas of single part
Definitions
- the present invention relates to an expanding method and an expanding apparatus for adhesive sheet, and in particular, it is mounted on a ring-shaped frame through the adhesive sheet, and is diced into individual chips.
- the pressure-sensitive adhesive sheet is expanded to the individual plate
- the present invention relates to an expanding method and an expanding apparatus for expanding a gap between chips.
- Wafers which are plate-like products with semiconductor devices, electronic components, etc. formed on the surface in semiconductor manufacturing processes, etc., are subjected to electrical tests in the profiling process, and then individual chips (die Or divided into pellets, and then the individual chips are die bonded to the component base in a die bonding process. After being die-bonded, the individual chips are resin-molded to form finished products such as semiconductor devices and electronic components.
- the wafer W is an adhesive sheet (also referred to as dicing dicing or dicing tape) S having a thickness of about 100 zm on which an adhesive layer is formed on one side.
- the back is attached and mounted on a rigid ring frame F. In this state, wafer W is transported in the dicing process, between the dicing process and the dicing process, and in the die bonding process.
- a dicing apparatus which cuts a grinding groove in a wafer W with a thin grindstone called a dicing blade and cuts the wafer W.
- a die thin double plate is obtained by electrodeposition of fine diamond abrasive grains on a thin grindstone with Ni, and a very thin one having a thickness of about 10 m to 30 / x m is used.
- the dicing blade is rotated at a high speed of 3 0, 0 0 0 6 0 0 0 0 rpm to cut it into the W-ha W, and completely cut the W-ha W (full cut).
- the adhesive sheet S affixed to the back of the chip is cut only about 10 x x from the surface, so although the chip W is cut into individual chips T, individual chips T Since the arrangement of chips T is not broken, the state is maintained as a whole.
- laser light with its focusing point aligned is irradiated inside the W-HA W to form a modified region by the multiphoton absorption phenomenon in the W-HA, and this modified region is the starting point.
- a laser dicing process has been proposed for cleaving W-W. Also in the case of this laser dicing process, since the wafer W is diced as shown in FIG. 3, the arrangement of the chips T is not broken, and the entire wafer state is maintained.
- the assembly of the chips T in which the arrangement of the chips T is not broken is also referred to as a wafer W for convenience.
- the wafer W is sent to the die bonding process.
- a die bonder is used in the die bonding process.
- the wafer W is first placed on the expanding stage, and then the adhesive sheet S is expanded to widen the distance between the chips T so that the chips T can be easily picked up.
- the wafer W mounted on the frame F through the adhesive sheet S is cut into individual chips T by a die-sinter blade, and then conveyed as it is in the dicing apparatus and cleaned. Next, it is transported to the die bonder, and the inside of the die bonder is transported as it is.
- a processing area also called a street
- ultra-thin dicing blades having a thickness of about 10 m to 15 x m have come to be used in the dicing process.
- the present invention has been made in view of these circumstances, and even if the spacing between chips after dicing is extremely narrow, the edge of the next chip and the edge are in contact due to the vibration during transportation. It is an object of the present invention to provide an expanding method and an expanding apparatus for an adhesive sheet which can be transported together with a frame without chipping or micro cracks in the edge portion. Disclosure of the invention
- dicing is performed on a plate-like material which is attached to a pressure-sensitive adhesive sheet and mounted on a ring-shaped frame via the pressure-sensitive adhesive sheet and diced into individual chips.
- the plate-like material is attached to the frame.
- the expanding method according to the present invention is characterized in that the plate-like object can be transported together with the frame while maintaining the distance between the enlarged chips.
- the adhesive sheet is expanded after the dicing process to widen the distance between the individual chips, and the plate-like material is conveyed while maintaining the state.
- the edge of the chip comes in contact with the edge, and no chipping or micro crack occurs in the edge.
- the expanding step includes a step of heating and expanding the pressure-sensitive adhesive sheet.
- the pressure-sensitive adhesive sheet can be easily expanded.
- the expanding step includes a step of forming a convex portion in a portion between the frame and the plate-like member of the pressure-sensitive adhesive sheet
- the expanding and holding step includes the step of forming the convex portion of the pressure-sensitive adhesive sheet. And welding or bonding the base.
- the convex portion is formed on the adhesive sheet and expanded, and the base of the convex portion is welded or bonded to hold the expanded state, so that the plate-like object can be handled together with the frame.
- the base of the convex portion formed on the pressure-sensitive adhesive sheet is ultrasonically welded. Since the base of the convex part formed in the adhesive sheet is welded by an ultrasonic wave by this, local welding can be performed easily.
- the expanding step is performed in a state where the plate-like object is mounted on a chuck stage of a dicing apparatus, and a expanded state of the adhesive sheet on the chuck stage is temporarily maintained using a clamp member.
- the method further includes the step of forming the slack in the outside portion of the clamp member of the pressure-sensitive adhesive sheet, and pinching and fixing the base of the slack portion of the pressure-sensitive adhesive sheet.
- the expanding step is performed by a dicing area of the dicing apparatus after dicing processing of the plate-like object, and the plate-like object in which the expanded state of the pressure-sensitive adhesive sheet is temporarily maintained is chucked
- the stage has a step of transporting the stage to another area in the same apparatus, and the expand holding step is performed in the other area.
- the process of holding and fixing the base of the slack portion of the adhesive sheet is performed in an area different from the dicing area of the dicing apparatus, so that it is possible to minimize the decrease in the operation rate of the dicing apparatus.
- the method further comprises the step of transporting the plate-like object together with the chuck stage to another beam in the same device without removing the plate-like object from the chuck stage of the dicing apparatus after dicing the plate-like article,
- the process and the expand holding step are performed in the other area in the same device.
- the plate-like material can be transported together with the frame while maintaining the distance between the chips. . Therefore, even if the distance between the chips is extremely narrow, the edges of the adjacent chips may come into contact with each other due to vibration during transportation, and chipping or micro cracks may occur at the edge. Absent.
- the expanding step and the expanding holding step are performed in an area different from the dicing area of the dicing apparatus, it is possible to prevent a decrease in the operation rate of the dicing apparatus.
- the expand holding step includes a step of fixing the base of the slack portion of the pressure-sensitive adhesive sheet by welding or adhesion.
- the base of the loosened portion of the adhesive sheet is welded or adhered to maintain the expanded state, the plate-like object can be handled together with the filler.
- a heat-shrinkable sheet is used as the pressure-sensitive adhesive sheet, and the expanding step and the expanding-holding step include the plate-like material in the portion between the plate-like material of the pressure-sensitive adhesive sheet and the frame. It is simultaneously performed by heating the pressure-sensitive adhesive sheet in at least one pair of areas sandwiched in parallel to the dicing lines of the plate-like material. Thereby, since the heating area of the adhesive sheet is disposed in parallel with the dicing line of the plate-like material, Even strip-shaped chips such as line sensors can be easily expanded.
- the plate is parallel to a dicing line perpendicular to the one direction, and at least a pair of areas sandwiching the plate parallel to the one direction dicing line of the plate.
- the pressure-sensitive adhesive sheet is heated in at least one pair of sandwiching areas, and the heating temperature of each of the areas is individually controlled in accordance with the expansion condition of the individual chip intervals.
- the heating temperature of each area is individually controlled in accordance with the expansion of each chip spacing, so that the individual chip spacing can be uniformly expanded.
- the pressure-sensitive adhesive sheet is heated without removing the plate-like product from the chuck stage of the dicing apparatus.
- the plate-like object is expanded without removing it from the chuck stage, and the pressure-sensitive adhesive sheet to which the plate-like object is attached is maintained in the expanded state as it is. Chips do not interfere with each other.
- a heat-shrinkable sheet is used as the pressure-sensitive adhesive sheet
- the expanding step includes a step of applying tension to the pressure-sensitive adhesive sheet
- the expand-holding step includes the plate-like object of the pressure-sensitive adhesive sheet and the frame. Forming a slack in a portion between them, and heating and shrinking the slack portion to eliminate the slack.
- a slack is formed in the portion to which the plate-like material is not attached, and the slack portion is heated and shrunk to maintain the expanded state of the adhesive sheet. Plates can be transported together with the frame while maintaining the spacing between the chips. Therefore, even if the distance between the chips is extremely narrow, vibrations during transport will not cause chipping or microcracking at the edge parts due to the edges of the adjacent chips coming into contact with each other. .
- the expanded state of the adhesive sheet of the portion to which the expanded plate-like material is attached is adsorbed and held or mechanically held, and then the slack is formed, and the slack portion is heated and contracted. After adsorption, the adsorption holding or mechanical holding is released.
- the expanded state of the adhesive sheet at the part where the After mechanical holding, a slack is formed, and the slack portion is heated and shrunk, and then suction holding or mechanical holding is released, so that only the adhesive sheet on the outer side of the plate forms a slack, and the slack portion is formed. Can be heated and shrunk, and can easily maintain the expanded state.
- the adhesive sheet is expanded by relatively separating the plate-like object and the frame, and the slack is formed by releasing the relative distance between the plate-like object and the frame.
- the adhesive sheet is expanded by pressing the adhesive sheet between the plate and the frame to expand the pressure of the adhesive sheet between the plate and the frame. The slack is formed by releasing. By these, it is possible to expand the adhesive sheet easily and evenly.
- the slack portion is shrunk by heating the outer portion of the plate of the adhesive sheet in an annular manner.
- the pressure-sensitive adhesive sheet is expanded without removing the plate-like material from the chuck stage of the dicing apparatus.
- the plate-like material is expanded without being removed from the chuck stage, and the adhesive sheet to which the plate-like material is attached is maintained in the expanded state as it is. There is no interference between the chips.
- the expanding step includes a step of relatively separating the plate-like member and the frame in the vertical direction, and applying a lateral force to the pressure-sensitive adhesive sheet
- the expanding holding step includes the steps of: And a step of sticking another ring-shaped frame to the expanded pressure-sensitive adhesive sheet, and cutting the pressure-sensitive adhesive sheet in the vicinity of the outer periphery of the other frame.
- another ring-shaped frame is attached to the expanded adhesive sheet, and the adhesive sheet is cut in the vicinity of the outer periphery of the other frame to hold the expanded state of the adhesive sheet.
- the plate can be transported together with the frame while maintaining the Therefore, even if the distance between the chips is extremely narrow, the edges of the adjacent chips come into contact with each other due to vibration during transportation, and chipping or micro cracks occur at the edge. I have not.
- the lateral force applied to the adhesive sheet is applied by inflating an air bag. As a result, since the pressure-sensitive adhesive sheet is spread laterally using an air bag, even a complex expanded shape can be easily expanded.
- the frame and the another frame are the same type of frame.
- the frame in which the plate-like object is mounted via the adhesive sheet and the frame for holding the expanded state of the expanded adhesive sheet are the same type of frame, the frame can be shared.
- the configuration can be simplified, and there is no need to change the transport means in the subsequent steps.
- the present invention is also directed to a plate-like object which is attached to a pressure-sensitive adhesive sheet and mounted on a ring-shaped frame via the pressure-sensitive adhesive sheet and diced into individual chips.
- an expanding device for expanding the pressure-sensitive adhesive sheet in a state in which the plate-like material is mounted on the frame in an expanding device for expanding the pressure-sensitive adhesive sheet later to expand the distance between the individual chips.
- the expanding device according to the present invention is characterized in that the plate-like object can be transported together with the frame.
- the adhesive sheet is expanded by the expanding means to widen the space between the individual chips, and the state is held by the expanding holding means, so that the wafer can be transported together with the frame. Vibration during transport causes the edges of the adjacent chips to come into contact with each other, and chipping or micro cracks do not occur at the edges.
- the expanding means includes a heating stage on which the plate is placed together with the adhesive sheet, and a heater incorporated in the heating stage, and the expanding holding means includes the plate.
- the inner ring having an inner diameter larger than the outer diameter, and the outer ring having an inner diameter which can be strongly fitted in the state where the adhesive seal is interposed on the outer periphery of the inner ring,
- the heat stage heats the portion of the adhesive sheet to which the plate-like material is attached, and the adhesive sheet is expanded by expanding it toward the outer periphery, thereby expanding the adhesive sheet by the inner ring and the outer ring. Sandwiching the outside of the heated portion of the heat sink to hold the expanded state of the adhesive sheet.
- the pressure-sensitive adhesive sheet can be easily heated and expanded toward the outer periphery, and the expanded state of the pressure-sensitive adhesive sheet can be easily held.
- the expanding means presses a portion of the adhesive sheet between the frame of the adhesive sheet and the plate to form a convex portion on the adhesive sheet.
- the expanding holding means is disposed opposite to the pressing member with the pressure-sensitive adhesive sheet interposed between the housing and the housing, the housing having a space for receiving the projection, and the base of the projection. Forming a protrusion on the adhesive sheet with the pressing member, and expanding the adhesive sheet by welding the base of the protrusion with the welding tool. Maintain the expanded state of the pressure-sensitive adhesive sheet.
- the expanding device has a pressing member for forming a convex portion on the adhesive sheet and a welding tool for welding the base of the convex portion, the adhesive sheet is expanded by the pressing member, and the adhesive sheet is formed using the welding tool. Since the base of the formed convex part is welded, the expanded state can be maintained while the plate-like object is mounted on the frame.
- a pressure reducing means is provided for reducing the pressure in the space in the housing.
- the expanding means expands the pressure-sensitive adhesive sheet without removing the plate-like object from the chuck stage of the dicing apparatus after dicing the plate-like object, and expands the pressure-sensitive adhesive sheet on the chuck stage.
- a sheet fixing means for temporarily maintaining the state is provided, and while the expanded state of the adhesive sheet is temporarily maintained, the plate-like material together with the chuck stage is separated from the dicing area to another area in the dicing apparatus.
- Transport means for transporting to the It is provided in the recording area, and pinches and fixes the base of the slack portion generated in the portion where the expanded state of the pressure-sensitive adhesive sheet is not maintained.
- the plate is transported together with the chuck stage from the dicing area to another area in the dicing apparatus without removing the plate from the chuck stage of the dicing apparatus.
- Means are provided, the expansion means expanding the pressure-sensitive adhesive sheet in the separate area in the dicing apparatus, and fixing the sheet temporarily holding the expanded state of the pressure-sensitive adhesive sheet on the chuck stage.
- a means is provided, and the expand holding means pinches and fixes a base of a slack portion generated in a portion where the expanded state of the adhesive sheet is not temporarily maintained.
- the chuck stage is transported from the dicing area to another beam in the dicing apparatus and expanded to expand temporarily the expanded state of the adhesive sheet on the chuck stage. Because the expanded state is maintained, even during conveyance in the dicing apparatus, the edges of the adjacent chips come into contact with each other due to vibration during conveyance, and chipping or micro cracks occur at the edge. There is no In addition, the operating rate of the dicing apparatus can be prevented from decreasing due to expansion.
- said expand holding means comprises an ultrasonic welding tool.
- said expand holding means comprises an ultrasonic welding tool.
- the heat-shrinkable adhesive sheet is targeted, and the expanding means and the expanding holding means are parallel to the dicing line in one direction of the plate-like material.
- the heating temperature of each area can be individually controlled in accordance with the expansion situation of the individual chip intervals, so that the individual chip intervals can be uniformly expanded.
- the heat-shrinkable pressure-sensitive adhesive sheet is targeted, and the expanding means includes at least one of a means for relatively separating the plate-like object and the frame in the vertical direction and a means for pressing the pressure-sensitive adhesive sheet.
- a sheet fixing means for temporarily maintaining the expanded state of the pressure-sensitive adhesive sheet, and the expanded holding means includes a slack portion formed in a portion between the plate-like member of the pressure-sensitive adhesive sheet and the frame. Includes heating means to heat.
- a slack is formed in the portion to which the plate-like material is not attached, and the slack portion is heated and shrunk to maintain the expanded state of the adhesive sheet.
- the plate can be transported together with the frame while maintaining the Therefore, even if the distance between the chips is extremely narrow, the edges of the adjacent chips may come in contact with each other due to vibration during transportation, and chipping or micro cracks may occur at the edge. Absent.
- the expanding means expands the adhesive sheet by relatively separating the plate-like object and the frame in the vertical direction, and the expanding means expands the adhesive sheet by a lateral force.
- the expand holding means includes means for applying a new frame to the expanded pressure-sensitive adhesive sheet, and means for cutting the pressure-sensitive adhesive sheet along the outer periphery of the new frame .
- Another ring-shaped frame is attached to the expanded and expanded adhesive sheet, and the adhesive sheet is cut in the vicinity of the outer periphery of this other frame to maintain the expanded state of the adhesive sheet, thereby maintaining the spacing between the chips.
- the plate can be transported together with the frame as it is. Therefore, even in the case of a plate-like material in which the distance between the chips is extremely narrow, vibration during transport is The edge of the next chip and the edge do not come into contact with each other by movement, so that chipping or crack of the microphone opening does not occur at the edge.
- FIG. 1 is a cross-sectional view showing an expanding apparatus according to a first embodiment of the present invention
- FIG. 2 is a cross-sectional view showing an expanded holding state of the pressure-sensitive adhesive sheet according to the first embodiment
- FIG. 3 is a perspective view showing a frame mounted on a frame
- FIG. 4 is a cross-sectional view showing an expanding apparatus according to a second embodiment of the present invention
- FIG. 5 is a flowchart explaining an expanding method according to the second embodiment
- FIG. 6 is a conceptual diagram showing the expanded state of the second embodiment
- FIG. 7 is a conceptual view showing the expanded holding state of the second embodiment
- FIG. 8 is a front view showing a part of the expanding device according to the third embodiment of the present invention.
- Fig. 9 is a plan view showing a part of the expanding device according to the third embodiment
- Fig. 10 is a cross-sectional view showing a sheet slack fixing means according to the third embodiment
- 1 is a flowchart for explaining an expanding method according to a third embodiment
- FIG. 12 is a flowchart for explaining the expanding method according to the third embodiment.
- FIG. 13 is a front view for explaining the expanding operation of the third embodiment
- FIG. 14 is a front view for explaining the sheet slack forming operation of the third embodiment
- Fig. 16 is a cross-sectional view for explaining the seat slack fixing operation according to the third embodiment
- Fig. 16 is a cross-sectional view for explaining the seat slack fixing operation according to the third embodiment
- FIG. 16 is a front view showing a transfer means of an expander according to a fourth embodiment of the present invention
- FIG. 18 is a plan view showing a conveying means of an expanding device according to a fourth embodiment
- FIG. 19 is a cross-sectional view showing the expanding means and the sheet slackening portion fixing means of the expanding device according to the fourth embodiment.
- FIG. 20 is a flowchart for explaining the expanding method according to the fourth embodiment.
- FIG. 21 is a flowchart for explaining an expanding method according to a fourth embodiment
- FIG. 22 is a cross-sectional view for explaining the state of the eight loaded into the expanding area
- FIG. 23 is a cross-sectional view for explaining the expanding operation of the fourth embodiment
- FIG. 24 is a cross-sectional view for explaining the sheet slack fixing operation of the fourth embodiment
- FIG. 26 is a cross-sectional view for explaining the sheet slack fixing operation according to the fourth embodiment
- FIG. 26 is a cross-sectional view showing an expanding device according to a fifth embodiment of the present invention
- FIG. 27 is a plan view showing the heating area of the adhesive sheet
- FIG. 28 is a plan view showing another embodiment of the heating area of the pressure-sensitive adhesive sheet;
- FIG. 29 is a cross-sectional view showing an expanding apparatus according to a sixth embodiment of the present invention.
- FIG. 30 is a flowchart for explaining the expanding method according to the sixth embodiment.
- FIG. 31 is a cross sectional view showing the expanding operation of the sixth embodiment.
- FIG. 32 is a cross-sectional view showing the expanding operation of the sixth embodiment.
- FIG. 33 is a cross sectional view showing the expanding operation of the sixth embodiment.
- FIG. 34 is a cross-sectional view for explaining a modification of the sixth embodiment.
- FIG. 35 is a flowchart for explaining a modification of the sixth embodiment
- FIG. 36 is a cross-sectional view showing an expanding device according to the seventh embodiment of the present invention. R;
- FIG. 37 is a flowchart for explaining the expanding method according to the seventh embodiment.
- FIG. 38 is a cross-sectional view showing the expanding operation of the seventh embodiment
- FIG. 39 is a cross-sectional view showing the expanding operation of the seventh embodiment.
- FIG. 1 shows a first embodiment of an expanding device according to the present invention.
- the expand span device 1 is composed of an expansion means 20 consisting of a heating stage 21 and an expand holding means 10 consisting of an inner ring 11 and an outer ring 12.
- a heater 22 is incorporated in the vicinity of the top surface of the heating stage 21, and the top surface of the heating stage 21 is set to have a predetermined temperature.
- An inner ring 11 is detachably disposed on the outer periphery of the heating stage 21.
- the inner diameter of the outer ring 12 is sized to be tightly fitted in a state in which the adhesive S is interposed on the outer periphery of the inner ring 11. Further, the outer ring 12 is moved up and down by drive means (not shown).
- the operation of the expanding device 1 configured as described above will be described.
- the wafer W After being cut into individual chips T, ⁇ , ... by dicing, the wafer W is placed on the heating stage 21.
- the W 18 W is placed on the heating stage 2 1, the W sheet S is heated and expanded to extend the chip interval.
- the outer ring 12 is lowered, and the outer ring 12 and the inner ring 11 sandwich the space S.
- the present invention is not limited thereto.
- Various fixing methods can be used, such as a method of changing to a small diameter frame in a fixed state, a method of fixing to the inner ring 11 with an elastic belt instead of the outer ring 12, or the like.
- FIG. 4 shows a second embodiment of the expanding device of the present invention.
- Exposed equipment 1 0 1 is an XY 0 table 1 1 1, chuck stage 1 1 2, frame chuck 1 1 3, pressing member 1 1 4, housing 1 1 5, ultrasonic welding tool as welding tool 1 1 6, holding ring 1 1 7 etc.
- Expanding means 1 3 0 comprises frame chuck 1 1 3, housing 1 1 5, pressing member 1 1 4 etc.
- Expand holding means 1 4 0 is housing 1 1 5, Holding ring 1 1 7 and ultrasonic welding tool 1 1 6 etc.
- the XY 0 table 1 1 1 is moved in the X and Y directions in the figure by a driving device (not shown) and is rotated by 0.
- Chuck stage 1 1 2 and frame chuck 1 1 3 are attached to XY 0 table 1 1 1.
- a porous member 1 1 3 A is embedded in the upper surface of the frame chuck 1 1 3, and a pressure reducing pump 1 2 3 via a solenoid valve 1 2 1 B and a pressure tube 1 2 2 B constituting pressure reducing means 1 2 0
- the frame F is attached by suction.
- a porous member (not shown) is embedded in the upper surface of the chuck stage 112, and connected to the pressure reducing pump 132 via an electromagnetic valve 121C, a linear actuator 112C, and a plate shape. It is designed to adsorb the object Ueha W.
- a ring-shaped housing 1 1 5 having an annular groove (space portion) 1 1 5 A is disposed above the portion to which the frame F and the adhesive W of the adhesive sheet S are not attached.
- the inner surface of the annular groove 115A is formed of a porous member 115B, a solenoid valve 121A, a regulator It is connected to a pressure reduction pump 1 2 3 3 via a 1 2 2 A valve so that the inside of the groove 1 1 5 A is reduced in pressure.
- the housing 115 is moved up and down by drive means (not shown) and is clamped at the lower end.
- a ring-shaped pressing member 114 is provided to face the housing 115 with the adhesive sheet S interposed therebetween.
- the pressing member 114 is moved up and down by drive means (not shown), and is positioned so as to be lifted and inserted into the groove 115A of the housing 115.
- the upper end edge of the pressing member 114 is chamfered smoothly.
- An annular holding ring 1 1 7 is provided inside the housing 1 1 5 and moved up and down by driving means (not shown) so as to strongly press the chuck table 1 1 2 when it is moved downward.
- an ultrasonic welding tool 116 as a welding tool is disposed obliquely toward the entrance of the groove 115A of the housing 115 at the end.
- the ultrasonic welding tool 116 is moved in the axial direction by drive means (not shown), and presses the object with its tip while oscillating ultrasonic waves.
- FIG. 5 is a flowchart showing the second embodiment of the expanding method of the present invention.
- the WAE W mounted on the frame F via the adhesive sheet S is placed on the chuck stage 1 12 and the frame chuck 1 1 3, and the WAE W is attracted to the chuck stage 1 1 2 via the adhesive sheet S.
- the frame F is attracted to the frame chuck 113 via the adhesive sheet S. In this state, the wafer W is diced into individual chips T.
- step S 1 1 3 lower housing 1 1 5 and clamp it at the position where the lower end contacts adhesive sheet S (step S 1 1 3).
- the pressing member 114 is raised and brought into contact with the adhesive sheet S, and by raising it as well, the adhesive sheet S is pushed up and the groove of the housing 115 is selected. Form a protrusion in 15 A.
- the pressure-sensitive adhesive sheet S is expanded outward from the center, and the distance between the tips T attached to the pressure-sensitive adhesive sheet S is increased (step S 1 15).
- step S 117 the pressing ring 1 1 7 is lowered, and the adhesive sheet S is pressed and clamped between it and the upper surface of the chuck stage 1 1 2.
- step S 117 the expanded state of the adhesive sheet S inside the retaining ring 117 is temporarily maintained.
- FIG. 6 shows this state, wherein the adhesive sheet S is pushed up by the pressing member 114, and an annular convex portion SA is formed in the annular groove of the housing 115.
- the adhesive sheet S is expanded outward from the central portion, the distance between the individual chips T is expanded, and this expanded state is temporarily maintained by the pressing ring 117.
- step S 1 1 9 operate the solenoid valve 1 2 1 A, decompress the space in the groove 1 1 5 A of the housing 1 1 5 A with a pressure reducing pump, and press the convex portion SA of the adhesive sheet S inside the groove 1 1 5 A Adsorb to (step S 1 1 9). Since the inner surface of the groove 115A is formed of the porous member 115B, the convex portion S is formed.
- A can be adsorbed uniformly.
- the pressing member 114 having the convex portion SA formed on the adhesive sheet S is lowered. Even if the pressing member 1 1 4 descends, the convex portion SA of the adhesive sheet S is adsorbed to the inner surface of the groove 1 1 5 A, so the convex portion SA does not return (step S 1 2 1) .
- the ultrasonic welding tool 116 is advanced, and the base portion SB, which is the root portion of the convex portion SA of the adhesive sheet S, is pressed at the tip to make the base portions SB contact with each other. 5 Press against the wall A (step S 1 2 3).
- the ultrasonic welding tool 116 oscillates ultrasonic waves, and locally welds the base S B of the convex portion S A of the adhesive sheet S at the tip, and XY
- Figure 7 illustrates this situation.
- the base SB of the convex portion SA is pressed by the tip of the ultrasonic welding tool 1 1 6
- the SBs are pressed against the wall of the groove 115A and welded locally by ultrasonic vibration.
- the ultrasonic welding tool 1 1 6 is retracted (step S 1 2 7) and the solenoid valve 1 2 1 A is operated to release the pressure reduction in the groove 1 1 5 A of the housing 1 1 5 A. 15. Raise the 5 and the pressure ring 1 1 7 (Step S 1 2 9).
- the distance between the chips T of the wafer W affixed to the adhesive sheet S and diced into individual chips T is expanded, and in this state, the adhesive sheet S forms a slack near the outer periphery.
- the root of the slack is in a state of being picked up, and the distance between the individual chips is kept expanded, and the diced wafer W can be transported with the frame.
- This expanding is preferably performed immediately after the dicing process in the dicing apparatus. In this way, the frame W is transported while holding the state in which the distance between the chips T is expanded, so that the edge of the next chip and the edge contact with each other due to the vibration during transportation, and the edge portion Generation of chipping and micro cracks.
- the pressure-sensitive adhesive sheet S is pushed up from below and the convex portion SA is formed upward, the present invention is not limited to this, and the pressure-sensitive adhesive sheet S is pressed downward.
- the convex portion SA may be formed toward the
- FIG. 8 illustrates a third embodiment of the expanding device according to the present invention, showing a part of the expanding device, in which the transfer device carrying the expanding means is positioned in the dicing area of the dicing device. It is a front view expressed. Also, FIG. 9 is a plan view thereof.
- the expanding device 200 includes a conveying means 230, an expanding means 2 33 attached to the conveying means 230, a sheet clamping means 2 34, and a rear end.
- Conveying means 230 is a plate-like object mounted on a frame via adhesive sheet S.
- the chucking stage 206 of the dicing apparatus from the dicing area It conveys to the welding work rear (separate area), and it rotates around the shaft 2 3 1 B by the driving means (not shown) and rotates up and down the rotating arm 2 3 1, 2 support beams 2 3 1A, 2 3 1 A, 2 support beams 2 3 1 A, 2 3 1 A, each of which is provided in a pair and horizontally moved by a drive means (not shown) to hold the chuck stage 2 0 6 Cu 2 3 2 2 3 2 ..., and so on.
- Conveying means 2 3 3 attached to the expanding means 2 3 3 are four pushers 2 3 3 A, 2 3 3 A, ... which are expanded and contracted by an air cylinder not shown, and the tips of the respective pushers 2 3 3 A It consists of a suction pad 2 3 3 B attached.
- a vacuum path is formed between the pusher 2 3 3 A and the suction pad 2 3 3 B, which is connected to a pressure reducing device (not shown), which attracts the frame F and the pusher 2 3 3 A extends downward to form an adhesive sheet. It is designed to expand S.
- Suction pad 2 3 3 B is made of a thin rubber-based material so that it can reliably adsorb frame F.
- the sheet clamping means 2 3 4 attached to the conveying means 2 3 0 is a clamping member 2 3 4 A which is a clamping member for temporarily clamping the expanded adhesive sheet, and a clamping ring 2 3 4 A It consists of two support rods 2 3 4 B and 2 3 4 B that are supported and expanded and contracted vertically by an air cylinder (not shown).
- Clamp ring 2 3 4 A is an L-shaped ring with a protruding edge, and the inner diameter of the edge is slightly larger than the outer diameter of the chuck stage 2 06 of the dicing apparatus. It comes to fit tightly on the chuck stage 2 0 6. A part of the clamp 2 34 A may be slotted to provide a strong fit.
- the chuck stage 2 0 6 of the dicing apparatus is mounted on the upper surface of the Z 0 stage 2 0 4 incorporated in the XY table 2 0 2 arranged in the dicing area, and with the wafer W on the chuck stage 2 0 6 It is designed to be vacuum adsorbed by co-pulling.
- a porous member 2 0 6 A is embedded on the upper surface of the chuck stage 2 0 6, and the adhesive sheet S It is designed to adsorb uniformly.
- a groove 2 0 6 B is formed in the lower portion of the side surface of the chuck stage 2 0 6, and the fork 2 3 of the transfer device 2 3 0 is formed in the groove 2 0 6 B.
- FIG. 10 is a cross-sectional view showing a sheet slack portion fixing means 201 A which is an expansion holding means disposed at a welding process rear other than the dicing area of the dicing apparatus.
- Sheet slack portion fixing means 2 0 1 A is a base F of a slack SA portion formed on the adhesive sheet S of the frame F on which the wafer W transported by the transport means 2 30 is mounted. It is something to pinch and fix.
- Sheet slack fixing means 2 0 1 A is a 0 table 2 1 1, a mounting table 2 1 1 A, a frame chuck 2 1 3, a push-up member 2 1 4, a housing 2 1 5, an ultrasonic wave welding tool as a welding tool It consists of 2 16 and pressure reducing means 2 20 etc.
- the weir table 2 1 1 is rotated by 0 in the direction of 0 in the figure by a drive not shown. ⁇ Table 2 1 1 Mounting Stage for Mounting Chuck Stage 2 0 6 2 1 1 A and Frame
- the frame chuck 2 1 3 on which the F is placed is attached.
- a porous member 2 1 3 A is embedded in the upper surface of the frame chuck 2 1 3, a solenoid valve 2 2 1 B, a regu
- a porous member 206A is embedded in the upper surface of the chuck stage 206, and a pressure reducing means is provided via a mounting base 21 1 A, a solenoid valve 2 21 C, and a regu It is connected to a decompression pump 2 23 that constitutes a 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 connection plate, so that a wafer W which is a plate-like object is adsorbed together with the adhesive sheet S. Due to this suction, the chuck stage 2 0 6 is also pulled by the mount 2 1 1 A.
- a ring-shaped housing 215 having a ring-shaped groove 215A is disposed above the portion of the adhesive sheet S to which the frame F and the wafer W are not attached.
- the inner surface of the annular groove 215A is formed of a porous member 215B, and is connected to a pressure reducing pump 223 via a solenoid valve 221A, a regu The pressure inside the 2 15 A is reduced.
- the housing 215 is moved up and down by drive means (not shown). And is clamped at the falling end.
- a ring-shaped push-up member 2 1 4 is provided to face the housing 2 1 5 with the adhesive sheet S interposed therebetween.
- the push-up member 214 is moved up and down by drive means (not shown), and is positioned so as to ascend and be inserted into the groove 25A of the housing 215.
- the upper edge of the push-up member 214 is chamfered smoothly.
- This push-up member 2 1 4 allows the adhesive sheet S to be slackened S A part of the housing 2 1 5 groove
- an ultrasonic welding tool 216 as a welding tool is disposed obliquely toward the inlet of the groove 215A of the housing 215 at the tip.
- the ultrasonic welding tool 216 is moved in the axial direction by a driving means (not shown), and while the ultrasonic waves are being oscillated, the tip is pressed against the object to weld the object.
- Embodiment 3 will be described.
- 11 and 12 are flowcharts showing a third embodiment of the expanding method of the present invention.
- the W 18 W mounted on the frame F via the adhesive sheet S is suction mounted on the chuck stage 206 in the dicing area of the dicing apparatus and laser dicing is performed by the laser dicing unit (not shown). .
- the rotating arm of the transfer means 230 is rotated and positioned above the W (step S 21 1).
- the adsorption of Ue W is released (that is, the adsorption of adhesive sheet S on the upper surface of chuck stage 2 06 is released), and expanding means 2 3 3 pushers 2 3 3 A, 2 3 3 A, ... Lowers and sucks frame F.
- step S 2 1 3 the adhesive sheet S inside the frame F including the upper portion of the chuck stage 2 0 6 is expanded.
- the expansion of the adhesive sheet S enlarges the distance between the individual chips T of the diced wafer W.
- Figure 13 shows this situation.
- the clamp ring 2 3 4 A of the sheet clamp means 2 3 4 comes down, and the adhesive sheet S is clamped and clamped between the chuck stage 2 0 6 and the clamp ring 2 3 4 A.
- the expanded state of the expanded adhesive sheet S on the chuck stage 206 is temporarily maintained (step S 21 5).
- the pushers 1 2 3 3 A, 2 3 3 A As the pusher 1 2 3 3 A, 2 3 3 A, ... rises, the expanded state of the adhesive sheet S on the chuck stage 2 0 6 is maintained but the other parts are not maintained, so the clamp ring 2 3 Sag SA occurs in the adhesive sheet S between the outside of 4 A and the inside of frame F (step S 2 1 7).
- Figure 14 shows this situation.
- step S 2 1 Place the frame F on the chuck stage 2 0 6 on the mounting stage 2 1 1 A and the frame F on the frame chuck 2 1 3 via the adhesive sheet S (step S 2) 2 1) Also in this transport, the expanded state of the adhesive sheet S on the chuck stage 206 is maintained, so that the edges of the tips T are not in contact with each other and the tips T are not damaged.
- Step S 2 2 7 activate the solenoid valve 2 21 A, decompress the space in the groove 2 1 5 A of the housing 2 1 5 A with a pressure reducing pump, and set the slack SA of the adhesive sheet S on the inner surface of the groove 2 1 5 A Adsorb (Step S 2 2 7). Since the inner surface of the groove 215A is formed of the porous member 215B, the slack SA can be uniformly adsorbed. Figure 15 shows this situation.
- the ultrasonic welding tool 216 is advanced, and the base portion SB which is the root portion of the slack SA of the adhesive sheet S is pressed at the tip portion, and the base portions SB are brought into contact with each other. Press against the wall of A.
- the ultrasonic welding tool 216 oscillates ultrasonic waves, and locally welds the base S B of the slack S A of the adhesive sheet S at the tip.
- 0 table 2 1 1 is rotated by 1 turn to weld the base S B of the annular slack S A over the entire circumference of the base S B (step S 2 2 9).
- Figure 16 illustrates this situation.
- the adhesive sheet S is a state in which the portion of the adhesive sheet W is expanded and the distance between the tips T is expanded, and the base SB of the slack SA is pressed by the tip of the ultrasonic welding tool 2 16
- the base portions SB are pressed against the wall of the groove 215A and locally welded by ultrasonic vibration.
- Step S 2 3 the ultrasonic welding tool 2 16 is retracted, and the solenoid valve 2 2 1 A is actuated to release the pressure reduction in the groove 2 1 5 A of the housing 2 1 5 and raise the housing 2 1 5.
- the solenoid valve 2 21 B and the solenoid valve 2 21 C are operated to release the attraction of the chuck stage 2 0 6 and the frame chuck 2 1 3.
- the distance between the chips T of the wafer W affixed to the adhesive sheet S and diced into individual chips T is in a state of being expanded, and in this state, the adhesive sheet S is in the vicinity of the outer periphery. Since the slack is created, the root of the slack is picked and fixed, and the distance between the individual chips T is kept expanded, it is possible to transport the diced wafer W together with the frame.
- This expansion is preferably performed immediately after the dicing process in the dicing apparatus, and the wafer W is thus transported while the chip T is held in the expanded state while the frame is being transported.
- the edge of the adjacent chip contacts with the edge due to the vibration, and the occurrence of chipping or micro crack at the edge is prevented.
- the fixation of the root (base S B) of the slack of the adhesive sheet S is performed in an area different from the dicing area, it is possible to suppress the decrease in the operation rate of the dicing apparatus as much as possible.
- the frame F is pushed downward to expand the adhesive sheet S, and after clamping, the frame F is lifted upward to form a slack SA in the adhesive sheet S.
- the present invention is not limited to this.
- FIG. 17 is for explaining a fourth embodiment of the expanding device of the present invention, and is a front view showing a state in which the transfer device which is a part of the sandwiching device is positioned in the dicing area of the dicing device.
- FIG. 18 is a plan view thereof.
- the expanding device 31 includes a conveying means 320, a conveying means 330, a frame suction means 33 3 attached to the frame 3, a sheet holding means 3 34, and It comprises an expanding means 3 0 1 A provided in an expanding area (separate area) described later, a sheet slack fixing means 3 0 1 B as an expanding holding means, and the like.
- the conveying means 330 is a plate-like material mounted on the frame F via the adhesive sheet S. This machine conveys the chuck W together with the chuck stage 300 of the dicing machine from the dicing area to the expanding area (separate area), and rotates around the shaft 33 1 B by drive means (not shown) and moves up and down.
- Two rotating arms 3 3 1, 2 support beams 3 3 1 A, 3 3 1 A, and support beams 3 3 1 A, 3 3 1 A, which are moved up and down, are provided by drive means (not shown).
- Four forks 33 3, 2 3,..., which are moved horizontally to hold the chuck stage 3 0 6, frame suction means 3 3 3, sheet holding means 3 3 4 and the like.
- Conveying means 3 3 3 attached to the frame 3 3 3 are four pushers 3 3 3 A, 3 3 3 A, ... which are expanded and contracted by an air cylinder not shown, and the tip of each pusher 3 3 3 A It consists of a suction pad 3 3 3 B attached to it.
- a vacuum path is formed between the pusher 3 3 3 A and the suction pad 3 3 3 B, which is connected to a decompression device (not shown) to adsorb the frame F.
- the suction pad 33 3 B is made of a thin rubber-based material so that the frame F can be reliably adsorbed.
- the sheet holding means 3 3 4 attached to the conveying means 3 3 0 has a sheet holding ring 3 3 4 A for clamping the adhesive sheet on the chuck stage 3 0 6 and a sheet holding ring 3 3 4 A It consists of two support rods 3 3 4 B and 3 3 4 B that are supported and expanded and contracted vertically by an air cylinder (not shown).
- the sheet pressing ring 3 3 4 A is configured to press the adhesive sheet S against the chuck stage 3 0 6 and clamp it.
- the chuck stage 3 0 6 of the dicing apparatus is mounted on the upper surface of the Z 0 stage 3 0 4 incorporated in the XY table 3 0 2 disposed in the dicing area, and with the wafer W on the chuck stage 3 0 6 It is designed to be vacuum-sucked to the Z0 stage 304 by co-pulling.
- FIG. 16 is a cross-sectional view showing an expanding means 3 0 1 A disposed in the sheet and a sheet slack fixing means 3 0 1 B as an expanding holding means.
- the expanding means 301 A is for stretching the adhesive chip S to which the wafer W is attached to expand the distance between the individual diced chips, and for mounting the wafer W together with the chuck stage 306, a drive (not shown)
- the elevator base 3 1 1 A which is moved up and down by means, a frame chuck 3 1 3 for attracting and fixing the frame F, and pressure reducing means 3 20 etc.
- the pressure reducing means 320 has a solenoid valve 32 1 A, 32 1 B, 32 1 C, a reguly of water 32 2 A, 32 2 B, 32 2 C, and a pressure reducing pump 3 2 3
- the expansion means 3 0 1 A is a pressure reduction pump 3 2 3, a solenoid valve 3 2 1 B, and a regu- lator 3 2 2 B.
- a porous member 3 1 3 A is embedded in the upper surface of the frame chuck 3 1 3 and a solenoid valve 3 2
- a porous member 3 0 6 A is embedded in the upper surface of the chuck stage 3 0 6, and a pressure reducing pump 3 via an elevator base 3 1 1 A, a solenoid valve 3 2 1 C, and a regu It is connected to 2 and 3 so that it adheres to the adhesive sheet S together with the plate-like object W. Due to this suction, the chuck stage 306 is also pulled by the mounting base 3 11 A. Lifting the lifting platform 3 1 1 A with chucking of the frame F by the frame chuck 3 1 3 in a state where the suction of each adhesive sheet S by the chuck stage 3 0 6 is released. The adhesive sheet S is expanded by this.
- Seat fixing means 3 0 8 is a chuck stage 3 0 6, lifting table 3 1 1 A, solenoid valve 3 2
- a suction means for adhesive sheet S consisting of an IC, a regulator, 32 C and a vacuum pump, and the expanded adhesive sheet portion is placed on the chuck stage 3 0 6 Expanded state is temporarily maintained by adsorption fixation.
- Sag loose part fixing means 3 0 1 B is a base of the slack S A portion formed on the adhesive sheet S of the frame F mounted with the wafer W transported by the transporting means 3 30
- Seat slack part fixing means 3 0 1 B is a 0 table 3 1 1, lifting table 3 1 1 A (shared with expansive means 3 0 1 A), frame chuck 3 1 3 (shared with expanding means 3 0 1 A) , Push-up member 3 1 4, housing 3 1 5, ultrasonic welding tool as welding tool
- the 0 table 3 1 1 is rotated 0 in the 0 direction in the figure by a driving device (not shown). ⁇
- the table 3 1 1 has the elevator 31 1 A on which the chuck stage 3 0 6 is mounted and the frame chuck 3 1 3 on which the frame F is mounted.
- a ring-shaped housing 3 15 having an annular groove 3 1 5 A is disposed above the portion to which the frame F and the adhesive W of the adhesive sheet S are not attached.
- the inner surface of the annular groove 3 1 5 A is formed of a porous member 3 1 5 B, and the solenoid valve 3 2 1 A
- the housing 3 15 is moved up and down by drive means (not shown) and is clamped at the lower end.
- a ring-shaped push-up member 3 1 4 is provided to face the housing 3 1 5 with the adhesive sheet S interposed therebetween.
- the push-up member 3 14 is moved up and down by a drive means (not shown), and is positioned so as to be raised and inserted into the groove 3 15 A of the housing 3 1 5.
- the upper end edge of the push-up member 3 1 4 is chamfered smoothly.
- an ultrasonic welding tool 316 as a welding tool is disposed obliquely toward the entrance of the groove 3515A of the housing 35.
- 3 16 is moved in the axial direction by drive means (not shown). While vibrating the sound wave, press the object with the tip to weld the object.
- FIGS. 20 and 21 are flowcharts showing a fourth embodiment of the expanding method of the present invention.
- W W 18 W mounted on the frame F via the adhesive sheet S is suction-mounted on the chuck stage 3 0 6 by the dicing area of the dicing apparatus, and laser dicing is performed by the laser dicing section (not shown). .
- the rotating arm of the transfer means 330 is turned and positioned above the wafer W (step S 3 1 1).
- the frame adsorption means 3 3 3 3 3 3 ... of the transport means 3 3 0 descends to adsorb the upper surface of the frame F by the respective adsorption pads 3 3 3 B.
- the solenoid valve 3 2 1 B is operated to attract and fix the frame F to the frame chuck 3 1 3.
- the sheet holding means 3 3 4 ascends to separate the sheet holding ring 3 3 4 A from the adhesive sheet S, and suction of the frame F upper surface side of the frame suction means 3 3 3 3 3 3 ...
- Fig. 22 shows this state, in which the frame F is attracted and fixed on the frame chuck and the wafer W is not yet attracted to the chuck stage 306, and the distance between the individual diced chips Has not yet been expanded.
- the lifting platform 31 1 A is lifted. Since the frame F is attracted to and fixed to the frame chuck 3 1 3 when the lifting platform 3 1 1 A is raised, the adhesive sheet S on the chuck stage 3 0 6 and the chuck stage 3 0 6 outside is stretched, and the adhesive sheet The distance between the individual chips T affixed to the point S is enlarged (step S 32 1).
- Figure 23 shows this situation.
- the electromagnetic valve 3 21 C is operated to hold the adhesive sheet S on the chuck stage 3 0 6 by suction onto the chuck stage 3 0 6 (step S 3 2 3).
- a ring-shaped housing 3 1 5 having an annular groove 3 1 5 A is disposed above the W W, and an ultrasonic welding tool 3 1 6 as a welding tool is provided on the outside of the housing 3 1 5
- the groove of the housing 3 1 5 is placed obliquely towards the entrance of the 3 5 A.
- Figure 19 represents this state.
- lower housing 3 1 5 fix the lower end at the same height position as the upper surface of adhesive sheet S. Then, the push-up member 3 14 is raised and brought into contact with the adhesive sheet S, and by raising it again, the slack of the adhesive sheet S is pushed up and pushed into the groove 3 15 A of the housing 3 1 5.
- Step S 3 2 7 activate the solenoid valve 3 2 1 A, reduce the space in the groove 3 1 5 A of the housing 3 1 5 with a pressure reducing pump, and loosen the adhesive sheet S from the groove 3 1 5 A Adsorb to (Step S 3 2 7).
- the inner surface of the groove 3 15 A is formed of the porous member 3 15 B, so that the slack SA can be adsorbed uniformly.
- Figure 24 shows this situation.
- the ultrasonic welding tool 316 is advanced, and the base portion SB which is the root portion of the slack SA of the adhesive sheet S is pressed at the tip end portion, and the base portions SB are brought into contact with each other. Press against the wall of A.
- the ultrasonic welding tool 316 oscillates ultrasonic waves and locally welds the base S B of the slack S A of the adhesive sheet S at the tip.
- 0 table 3 1 1 is rotated once to weld around the base S B of the annular slack S A over the entire circumference of the base S B (step S 3 2 9).
- Figure 25 shows this situation.
- the adhesive sheet S is a state in which the portion of the adhesive sheet W is expanded and the distance between the tips T is expanded, and the base SB of the slack SA is pressed with the tip of the ultrasonic welding tool 3 16
- the base portions SB are pressed against the wall of the groove 35A and locally welded by ultrasonic vibration.
- Step S 3 3 the ultrasonic welding tool 3 1 6 is retracted, and the solenoid valve 3 2 1 A is actuated to release the pressure reduction in the groove 3 1 5 A of the housing 3 1 5 and raise the housing 3 1 5.
- the solenoid valve 3 2 1 B and the solenoid valve 3 2 1 C are operated to release the attraction force of the chuck stage 3 0 6 and the frame chuck 3 1 3.
- the distance between the chips T of the wafer W affixed to the adhesive sheet S and diced into individual chips T is in a state of being expanded, and in this state, the adhesive sheet S is outside.
- the slack is created near the circumference, the root of the slack is pinched and fixed, and the distance between the individual chips T is kept expanded, so that the diced wafer W can be transported together with the frame.
- This expansion is preferably performed immediately after the dicing process in the dicing apparatus, and the wafer W is thus transported while the chip T is held in the expanded state while the frame is being transported. As a result, the edge and the edge of the adjacent chips come into contact with each other and the occurrence of chipping or microcracking at the edge is prevented.
- the expansion of adhesive sheet S and the fixation of the root (base SB) of slack SA of adhesive sheet S are performed in an area different from the dicing area, the operating rate of the dicing machine decreases due to expansion. I have not.
- the chuck stage 306 is lifted up, expanded, clamped, and then lowered to form the slack SA in the adhesive sheet S.
- the present invention is not limited to this, and the frame The pressure-sensitive adhesive sheet S may be expanded by pressing down F, and after being clamped, the pressure-sensitive adhesive sheet S may be lifted to form a slack SA in the pressure-sensitive adhesive sheet S.
- the base SB of the slack S A of the adhesive sheet S is ultrasonically welded, not only ultrasonic welding but also local welding may be performed by thermocompression bonding, and not only welding but also adhesion may be performed using an adhesive.
- FIG. 26 is for explaining the fifth embodiment of the expanding device of the present invention, which is provided in the dicing area in the dicing device.
- Expanding device 4 0 1 is a driving means (not shown) surrounding chuck stage 4 1 2 and frame chuck 4 1 3 and chuck stage 4 1 2 mounted on XYZ 0 table 4 1 1 and XY Z 0 table 4 1 1 It has a mounting ring 4 1 4 that can be moved up and down by up and down, and a heating means 4 1 5 etc. mounted on the top surface of the mounting ring 4 1 4.
- a porous member (not shown) is embedded in the upper surface of the chuck stage 42 and connected to the pressure reducing means via the porous member to hold the work by suction.
- a porous member 4 13 A is embedded in the upper surface of the flame chuck 43 1 and connected to the pressure reducing means through the porous member 4 13 A.
- the mounting ring 4 1 4 attached to the mounting ring 4 1 4 is moved up and down.
- a surface heating element such as a rubber heat exchanger is used to heat a portion between a frame W of a sheet material of the sheet S and a frame F.
- FIG. 27 is a plan view showing the heated area of the adhesive sheet S between the wafer W and the frame F of the adhesive sheet S.
- the heated area of the adhesive sheet S is orthogonal to a pair of areas H 1, H 2 and a dicing line in one direction parallel to the dicing line in one direction of the wafer W.
- the plurality of heating means 4 1 5 are arranged in the same planar shape and at the same position as these areas HI, H 2, H 3 and H 4 There is.
- the heating means 45 disposed in these areas 1, H 2, H 3 and H 4 can be independently controlled to control the on / off and heat generation temperature.
- the wafer W is attached to the heat-shrinkable adhesive sheet S and mounted on the ring-shaped frame F via the adhesive sheet S. It is thrown in.
- the base material of the heat-shrinkable adhesive sheet S is a polyolefin-based plastic that shrinks when heat of 115 ° C. or more is applied, and the shrinkage rate is 15% or more in terms of length change rate Used.
- the base material of the pressure-sensitive adhesive sheet S can be appropriately selected from plastics such as polyvinyl chloride, polyester, and polystyrene, in addition to polyolefins.
- the wafer W When the wafer W is diced, the wafer W is attached to the adhesive sheet S and vacuum-sucked to the chuck stage 42 via the adhesive sheet S.
- the frame F is also attracted to the frame chuck 4 1 3 via the adhesive sheet S.
- the mounting ring 4 1 4 to which the heating means 4 1 5 is attached is located below.
- a laser beam (not shown) is irradiated with a laser beam having a focusing point inside the beam to form a modified layer by multiphoton absorption inside, and the XYZ 6 table 4 1 1
- the laser is diced by the relative movement of the laser beam and the laser beam.
- Wah W is diced, the suction of the frame F is left as it is, the vacuum chuck of the chuck stage is opened to the atmosphere, and the portion where the W of W adhesive is attached to the adhesive sheet S The suction of the minute is released.
- the mounting ring 4 1 4 ascends to bring the heating means 4 1 5 into contact with the heating area H 1, H 2, H 3 and H 4 of the adhesive sheet S.
- either area HI, H2 or area H3, H4 is heated first. Since the adhesive sheet S is a heat-shrinkable sheet, the heated area shrinks. At this time, the portion of the adhesive sheet S to which the wafer W is attached is stretched outward, and the distance between the individual diced chips T is spread in one direction.
- the heating means 45 can be heated to a temperature close to 120 ° C, but observe the distance between chips with a microscope or TV camera image, and control the heating temperature of each heating area according to the expansion situation of each part. .
- the heating means 415 is lowered, and at the same time, the adsorption of the frame F is released. Since the shrunk state is maintained even if heating of the heated areas HI, H 2, H 3, and H 4 of the adhesive sheet S is released, the expansive state of the portion to which the W W is applied is also The wafer W can be transported while being mounted on the frame F with the chip interval expanded.
- the wafer W is expanded immediately after dicing without being removed from the chuck stage 42, and the distance between the individual chips is expanded, so that edge-to-edge contact of the chips is prevented during transport.
- one of area HI, H 2 or area H 3 or H 4 of adhesive sheet S is heated first and expanded in one direction, and then the other one is heated and expanded in the other direction.
- it may be performed by on / off control of the heating means 45 corresponding to each area, or even if the mounting ring 44 is divided and moved up and down independently in each area. Good.
- the heating area of the adhesive sheet S is four places, it may be further subdivided and finely controlled.
- the heating areas HI, H 2, H 3 and H 4 may be heated simultaneously.
- the area to be heated of the adhesive sheet S is an annular area HR, and the heating means 4 15 is also an annular ring of the same shape. It can be done.
- FIG. 29 illustrates a sixth embodiment of the expanding device of the present invention.
- Expanding device 51 is an expanding means mounted on base 5 11 1 and base 5 1 1, and an expansion table 5 1 2 and a frame chuck 5 1 3, and a chuck stage attached to the expansion and contraction table 5 1 2 It has an injection pipe 51, which is an expandable holding means, attached to the base 5 11 via the holder 5 16 and the holder 5 16.
- a porous member 5 1 4 A is embedded on the upper surface of the chuck stage 5 1 4, and the porous member 5 1 4 A is a vacuum pump 5 2 via a solenoid valve 5 2 1 B and a regiyu valve 5 2 2 B. It is connected to 3 and is designed to adsorb and hold the adhesive sheet S together with the plate work W.
- a porous member 5 1 3 A is embedded in the upper surface of the frame chuck 5 1 3, and the porous member 5 1 3 A is a vacuum pump via a solenoid valve 5 2 1 A and a regu It is connected to 5 2 3 so as to suction and hold the frame F together with the adhesive sheet S.
- the telescopic table 512 is vertically expanded and contracted by drive means (not shown) to move the wafer W on the chuck stage 5 14 together with the adhesive sheet S up and down.
- the injection pipe 55 is connected to the hot air source by a ring-shaped pipe, and injects hot air upward from a large number of injection ports 5 15 A, 5 15 A,.
- the wafer W is attached to the heat-shrinkable adhesive sheet S as shown in FIG. 3, and the ring-shaped frame F is mounted via the adhesive sheet S. It is thrown in in the state that it was deceived.
- the base material of the heat-shrinkable adhesive sheet S is a polyolefin-based plastic, which shrinks when heat of 115 ° C. or more is applied, and the shrinkage rate is 15% or more in terms of length change rate Used.
- the base material of the pressure-sensitive adhesive sheet S is, in addition to the polyolefin type, polyvinyl chloride, polyester It can be suitably selected from tellurium, plastics such as polystyrene.
- the wafer W is placed on the chuck stage 5 14 via the adhesive sheet S, and the frame F is placed on the frame chuck 5 13. In this case, W is already diced and divided into individual chips.
- step S 5 1 operate the solenoid valve 5 2 1 A to attach and fix the frame F to the frame chuck 5 1 3 (step S 5 1 1). Note that the wafer W is not attracted while it is placed on the chuck stage 54. Figure 29 shows this situation.
- step S 5 13 stretch the telescopic table 5 12 2 upward and lift the adhesive sheet S on the portion where the W U W is attached. As a result, the adhesive sheet S is stretched to increase the distance between the individual chips T (step S 5 13).
- Figure 31 shows this situation.
- hot air is injected from the injection ports 5 1 5 A, 5 1 5 A, ... of the injection pipes 5 1 5 toward the slack S A of the adhesive sheet S.
- the temperature of the hot air is preferably about 120 ° C. Since the adhesive sheet S is a heat-shrinkable sheet, the slack S A portion shrinks to eliminate the slack S A (step S 5 19).
- FIG. 32 shows a state in which a slack S A is formed on the adhesive sheet S between the frame F and the chuck stage 54, and the hot air is sprayed from the jet pipe 5 15 to the slack S A portion.
- the solenoid valves 5 2 1 A and 5 2 1 B are operated to release the adhesion between the frame W and the frame F (step S 52 1). Even if the adsorption of W "ha" W is released, the expanded state of the adhesive sheet S is maintained because the slack SA of the adhesive sheet S is shrunk and eliminated, and the distance between the individual chips T is kept expanded. Fig. 3 3 shows this condition. ing.
- the individual chips T can be prevented from contacting each other, and the wafer W can be easily transported with the frame F. can do.
- the frame F is fixed at a predetermined position, and the wafer W is moved upward to expand the adhesive sheet S.
- the present invention is not limited to this, and the wafer W is fixed at a predetermined position.
- the frame F may be pushed downward to expand the adhesive sheet S, and any other method may be used to move the frame F relative to the other as long as the frame F is relatively separated.
- FIG. 34 shows an expander according to a modification of the sixth embodiment of the present invention.
- Expanding device 5 0 1 A is a ring provided on a base 5 1 1 via a stage 5 3 1 and a frame chuck 5 1 3 mounted on a base 5 1 1 and a base 5 1 1 and a frame chuck 5 1 3
- the heating plate 534 has the shape of a circle.
- a porous member 5 1 3 A is embedded in the upper surface of the flame check 5 1 3, and the porous member 5 1 3 A is connected to a vacuum source (not shown) so that the frame F can be adsorbed and held together with the adhesive sheet S. There is.
- a surface heating element such as a laper heater is used for the heating plate 543, and the mounting base 535 having the heating plate 534 attached thereto is vertically moved by a driving means (not shown).
- An annular clamp ring 53 3 is provided above the stage 5 31 and is moved up and down by driving means (not shown). When the clamp ring 53 3 is pushed downward, the adhesive sheet S is pressed against the stage 5 31 1 to clamp the adhesive sheet S. Further, an annular pressing ring 5 32 is provided above the heating plate 5 34 and is moved up and down by driving means (not shown). When the pressing ring 53 2 is pushed downward, the adhesive sheet S is pushed downward in a ring shape.
- FIG. 35 is a flowchart showing a modification of the sixth embodiment of the expanding method according to the present invention.
- the vacuum source of frame chuck 5 13 is turned on, and frame F together with adhesive sheet S is sucked and fixed to frame chuck 5 1 3 (step S 53 1).
- the adhesive sheet S is expanded, and the distance between the individual chips T is enlarged (step S 5 3 3).
- the clamp ring 533 is moved downward, and the adhesive sheet S is pressed against the stage 531 at the outer periphery of the wafer W and clamped (step S535).
- the expanded state of the adhesive sheet S on the stage 5 31 is temporarily maintained.
- a sag SA as shown by a dotted line in FIG. 34 is formed in a portion between the stage 5 3 1 of the adhesive sheet S and the frame F (see FIG. Step S 5 3 7).
- raise the mount 535 bring the ring-shaped superheated plate 534 heated to about 120 into contact with the slack S A portion of the adhesive sheet S, and gradually lift it.
- the slack SA gradually shrinks and the slack SA is eliminated (step S 5 3 9). Since the outer portion of the adhesive sheet is roundedly heated by the ring-shaped superheater plate 344, the slack of the adhesive sheet S is uniformly shrunk and eliminated.
- step S 5 4 1 When the slack S A is completely eliminated, the heating plate 5 3 4 and the clamp ring 5 3 3 are retracted (step S 5 4 1). Here, the suction of the frame F is released (step S 5 4 3). Even if the clamp of the adhesive sheet S on stage 5 3 1 and the suction of the frame F are released, the slack of the adhesive sheet S shrinks and disappears, so the expanded state of the adhesive sheet S is maintained, and the individual The distance between the chips T is enlarged to prevent contact between the individual chips T, and the wafer W can be easily transported together with the frame F.
- the pressing ring 532 forms a slack SA as shown by the dotted line in the figure, and the slack SA is heated by the ring-shaped superheated plate 534 and contracted to be completely eliminated ( It represents the solid line in the figure).
- the distance between the individual chips T expanded and diced with the heat-shrinkable adhesive sheet S is expanded. Since the slack SA is formed in the adhesive sheet S while keeping the expanded state, and the slack SA is heated to be heat-shrunk, the expanded state of the adhesive sheet S can be easily maintained, and the tip T in the transport can be maintained. Contact between the edges is prevented.
- FIG. 36 explains the seventh embodiment of the expanding device of the present invention.
- the expansion device 601 is provided on the base 61 1 and the base 6 11 1 with the frame 62 1 2 and the frame chuck 6 1 3 and the frame 6 12 2 on the ridge 6 12 A. It has a frame holder 6 1 5 disposed above the air bag 6 1 4, a frame chuck 6 1 3, a cut sheet 6 1 6 for cutting the adhesive sheet S, and the like.
- the expanding means of the expanding device 601 is composed of a first stage 6212, an air bag 6414 and so on, and the expanding holding means is constituted by a frame holder 65, a cutaway box 661 and so on. There is.
- the wafer stage 62 1 2 is moved up and down by drive means (not shown) to move the plate member W together with the adhesive sheet S up and down.
- the flame check 613 has a cylindrical shape, and the porous member 6 1 3 A is embedded in the upper surface of the flame check 6 1 3, and the porous member 6 1 3 A is connected to a vacuum source not shown.
- the first frame which is the frame F, is suction-held together with the adhesive sheet S.
- the air bag 6 1 4 provided on the heel portion 6 1 2 A of the U-ha stage 6 1 2 is in the form of a tube made of a rubber-based elastic member, and is connected to a compressed air source (not shown). It is designed to expand and contract in the lateral direction mainly by force.
- the frame holder 6 1 5 disposed above the frame chuck 6 1 3 is moved up and down by a drive means (not shown) and connected to a vacuum source (not shown) to attract a new frame F as a second frame. It is supposed to hold.
- the new frame F which is the second frame is the same as the frame F which is the first frame.
- it is moved up and down together with the frame holder 6 1 5, and is advanced and retracted toward the outer periphery of the new frame F, and further rotated along the outer periphery of the new frame F
- a cutlet 616 is provided to move and cut off the adhesive sheet S.
- the wafer W is attached to the adhesive sheet S as shown in FIG. 3, and the ring-shaped frame F, which is the first frame, is attached via the adhesive sheet S. It is thrown in the mounted state.
- Wah W has already been diced and divided into individual chips T.
- a second frame F which is the second frame, is fixed by suction to the frame holder 65 and fixed (step S 6 1 7), and the new frame F is affixed to the expanded adhesive sheet S (step S S 6 1 9).
- Figure 39 shows this situation.
- the expanded state of the adhesive sheet S in the inner portion of the new frame F is maintained.
- the supply of the compressed air supplied to the air bag 64 is stopped, and the communication path is opened to the atmosphere to shrink the air bag 64 (step S 6 21).
- step S 6 2 3 and then turn the pot 6 16 1 round along the outer periphery of the new frame F to separate the adhesive sheet S at the outer periphery of the new frame F (step S 6 2 5) .
- step S 6 2 7 set back the grill 616 (step S 6 2 7), and release the suction of the new frame F by the frame holder 6 1 5.
- the expanded state of the expanded adhesive sheet S is maintained, and the distance between the individual chips T is expanded, so that the individual chips T can be prevented from contacting each other. It can be easily transported.
- the frame F held by suction by the frame chuck 61 3 is released after the suction is released.
- the adhesive material of the adhesive sheet S affixed to the frame F is an ultraviolet-curable adhesive
- the adhesive sheet S is removed after the adhesive force is weakened by irradiating ultraviolet light.
- the adhesive material of the adhesive sheet S is a thermosetting adhesive, heat is applied to weaken the adhesive force.
- the first frame, frame F, and the second frame, new frame F use the same kind of material, so the first frame from which adhesive sheet S is removed is frame F is the next new frame F. Use.
- the frame F is fixed at a predetermined position, and while moving the upper W, the air bag 612 is expanded to expand the adhesive sheet S, but the present invention
- the adhesive sheet S may be expanded by fixing the WAH W at a fixed position and pressing down the frame F and expanding the air bag 64, and the WAH W and the frame may be expanded. After a predetermined distance from F relative to each other, the bag 614 may be inflated.
- the air bag 64 is used as a means for stretching the adhesive sheet S in the lateral direction
- the lateral force is applied to the adhesive sheet S using various other mechanical means without being limited to the air bag 64. You may Industrial applicability
- the adhesive sheet is attached and mounted on the ring-shaped frame via the adhesive sheet,
- the adhesive sheet For the plate-like material diced into chips, expand the adhesive seal in the state that the plate-like material is mounted on the frame after dicing, expand the space between the individual chips, and maintain the condition. Therefore, the plate-like object can be transported together with the frame, and it is possible to prevent the occurrence of chipping or micro cracks in the edge portion due to the contact between the edges of the adjacent chips due to vibration during transportation.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Dicing (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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KR1020057007336A KR101151023B1 (ko) | 2002-10-28 | 2003-10-27 | 익스팬드방법 및 익스팬드장치 |
US10/532,815 US7887665B2 (en) | 2002-10-28 | 2003-10-27 | Expanding method and expanding device |
EP03758938A EP1575081A1 (en) | 2002-10-28 | 2003-10-27 | Expansion method and device |
US11/962,319 US7886798B2 (en) | 2002-10-28 | 2007-12-21 | Expanding method and expanding device |
Applications Claiming Priority (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-312456 | 2002-10-28 | ||
JP2002312456A JP2004146727A (ja) | 2002-10-28 | 2002-10-28 | ウェーハの搬送方法 |
JP2003-179680 | 2003-06-24 | ||
JP2003179680A JP4306337B2 (ja) | 2003-06-24 | 2003-06-24 | エキスパンド方法 |
JP2003277272A JP4247670B2 (ja) | 2003-07-22 | 2003-07-22 | エキスパンド方法及びエキスパンド装置 |
JP2003-277272 | 2003-07-22 | ||
JP2003-279713 | 2003-07-25 | ||
JP2003279713A JP4306359B2 (ja) | 2003-07-25 | 2003-07-25 | エキスパンド方法 |
JP2003-288492 | 2003-08-07 | ||
JP2003288492A JP4238669B2 (ja) | 2003-08-07 | 2003-08-07 | エキスパンド方法及びエキスパンド装置 |
JP2003338795A JP4288392B2 (ja) | 2003-09-29 | 2003-09-29 | エキスパンド方法 |
JP2003-338796 | 2003-09-29 | ||
JP2003-338795 | 2003-09-29 | ||
JP2003338796A JP4385705B2 (ja) | 2003-09-29 | 2003-09-29 | エキスパンド方法 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US10532815 A-371-Of-International | 2003-10-27 | ||
US11/962,319 Division US7886798B2 (en) | 2002-10-28 | 2007-12-21 | Expanding method and expanding device |
Publications (1)
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WO2004038779A1 true WO2004038779A1 (ja) | 2004-05-06 |
Family
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Family Applications (1)
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PCT/JP2003/013711 WO2004038779A1 (ja) | 2002-10-28 | 2003-10-27 | エキスパンド方法及びエキスパンド装置 |
Country Status (5)
Country | Link |
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US (1) | US7886798B2 (ja) |
EP (1) | EP1575081A1 (ja) |
KR (1) | KR101151023B1 (ja) |
TW (1) | TW200414336A (ja) |
WO (1) | WO2004038779A1 (ja) |
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- 2003-10-27 WO PCT/JP2003/013711 patent/WO2004038779A1/ja active Application Filing
- 2003-10-27 EP EP03758938A patent/EP1575081A1/en not_active Withdrawn
- 2003-10-28 TW TW092129921A patent/TW200414336A/zh not_active IP Right Cessation
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2007
- 2007-12-21 US US11/962,319 patent/US7886798B2/en active Active
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US7608523B2 (en) * | 2005-08-26 | 2009-10-27 | Disco Corporation | Wafer processing method and adhesive tape used in the wafer processing method |
JP2016072437A (ja) * | 2014-09-30 | 2016-05-09 | 株式会社ディスコ | 拡張装置、及び接着シートの破断方法 |
CN112967968A (zh) * | 2020-05-20 | 2021-06-15 | 重庆康佳光电技术研究院有限公司 | 一种转移装置及转移方法 |
CN112967968B (zh) * | 2020-05-20 | 2022-05-31 | 重庆康佳光电技术研究院有限公司 | 一种转移装置及转移方法 |
CN112967970A (zh) * | 2020-05-21 | 2021-06-15 | 重庆康佳光电技术研究院有限公司 | 一种转移方法及显示背板 |
CN112967970B (zh) * | 2020-05-21 | 2022-09-27 | 重庆康佳光电技术研究院有限公司 | 一种转移方法及显示背板 |
Also Published As
Publication number | Publication date |
---|---|
TW200414336A (en) | 2004-08-01 |
EP1575081A1 (en) | 2005-09-14 |
US20080105383A1 (en) | 2008-05-08 |
US7886798B2 (en) | 2011-02-15 |
KR20050059315A (ko) | 2005-06-17 |
KR101151023B1 (ko) | 2012-05-30 |
TWI295818B (ja) | 2008-04-11 |
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