US20180090379A1 - Wafer dicing method - Google Patents
Wafer dicing method Download PDFInfo
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- US20180090379A1 US20180090379A1 US15/342,241 US201615342241A US2018090379A1 US 20180090379 A1 US20180090379 A1 US 20180090379A1 US 201615342241 A US201615342241 A US 201615342241A US 2018090379 A1 US2018090379 A1 US 2018090379A1
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 14
- 239000004065 semiconductor Substances 0.000 description 3
- 239000012634 fragment Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—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
- H01L21/18—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 the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
- H01L21/3043—Making grooves, e.g. cutting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67046—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing using mainly scrubbing means, e.g. brushes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6835—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—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
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/544—Marks applied to semiconductor devices or parts, e.g. registration marks, alignment structures, wafer maps
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—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
- H01L21/60—Attaching or detaching leads or other conductive members, to be used for carrying current to or from the device in operation
- H01L2021/60007—Attaching or detaching leads or other conductive members, to be used for carrying current to or from the device in operation involving a soldering or an alloying process
- H01L2021/60022—Attaching or detaching leads or other conductive members, to be used for carrying current to or from the device in operation involving a soldering or an alloying process using bump connectors, e.g. for flip chip mounting
- H01L2021/60097—Applying energy, e.g. for the soldering or alloying process
- H01L2021/60172—Applying energy, e.g. for the soldering or alloying process using static pressure
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2223/00—Details relating to semiconductor or other solid state devices covered by the group H01L23/00
- H01L2223/544—Marks applied to semiconductor devices or parts
- H01L2223/54453—Marks applied to semiconductor devices or parts for use prior to dicing
- H01L2223/5446—Located in scribe lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
Definitions
- This invention generally relates to a wafer dicing method, more particularly to a wafer dicing method able to prevent metal burrs from protruding on die surface.
- a wafer 400 is firstly fixed on a carrier 600 by a tape 500 in conventional wafer dicing method, and then using a cutter (not shown) to cut the wafer 400 to form a plurality of chips 410 .
- a plurality of metal burrs 411 will be formed protruded from the surface of the chip 410 during cutting.
- FIG. 12 when the chip 410 interconnects with a plurality of bumps 710 on a substrate 700 which is made of flexible material, glass or other materials by flip-chip technology, the metal burrs 411 protruded from the surface of the chip 410 will contact with the substrate 700 to cause leakage or short circuit of semiconductor structure, or affect electric signal input or output.
- the primary object of the present invention is to use a brush to contact with metal burrs formed result from cutting metal layer to prevent the metal burrs from protruding on die surface.
- a wafer dicing method of the present invention comprises providing a wafer including a plurality of dies and a metal layer, wherein each of the dies includes a surface and there is a scribe line formed between adjacent dies, and wherein the metal layer is formed on the scribe line; and performing a cutting procedure and a contacting procedure, wherein a cutter is used to cut the metal layer along the scribe line during the cutting procedure to form a plurality of cutting slots on the wafer, and the metal layer cut by the cutter remains a plurality of metal burrs on the dies, and wherein a contacting portion of a brush is used to contact with each of the metal burrs along the cutting slot during the contacting procedure to prevent each of the metal burrs from protruding from the surface of each of the dies.
- the present invention uses the brush to contact with the metal burrs during the contacting procedure for preventing the metal burrs formed during the cutting procedure from protruding on the surface of the die.
- the purpose of preventing the metal burrs from protruding on the die surface is to prevent the metal burrs from contacting with other components during follow-up package process to cause leakage/short circuit or affect electric signal transmission, and also prevent the metal burrs from damaging other components during follow-up package process.
- FIG. 1 is a flow chart illustrating a wafer dicing method in accordance with a first embodiment of the present invention.
- FIG. 2 is a perspective diagram illustrating a wafer and a wafer dicing device in accordance with the first embodiment of the present invention.
- FIG. 3 is a lateral view diagram illustrating the wafer and the wafer dicing device in accordance with the first embodiment of the present invention.
- FIG. 4 is a lateral view diagram illustrating the wafer and the wafer dicing device in accordance with the first embodiment of the present invention.
- FIG. 5 is a lateral view diagram illustrating the wafer and the wafer dicing device in accordance with the first embodiment of the present invention.
- FIG. 6 is a cross-sectional view diagram along A-A line in FIG. 5 .
- FIG. 7 is a cross-sectional view diagram along B-B line in FIG. 5 .
- FIG. 8 is a cross-sectional view diagram along C-C line in FIG. 5 .
- FIG. 9 is a lateral view diagram illustrating a wafer and a wafer dicing device in accordance with a second embodiment of the present invention.
- FIG. 10 is a lateral view diagram illustrating the wafer and the wafer dicing device in accordance with the second embodiment of the present invention.
- FIG. 11 is a diagram illustrating a wafer after cutting.
- FIG. 12 is a diagram illustrating a chip after flip-chip interconnection.
- a wafer dicing method 10 in accordance with a first embodiment of the present invention includes step 11 of providing wafer and step 12 of performing cutting procedure and contacting procedure.
- a wafer 100 is provided in step 11 , preferably, the wafer 100 is made of silicon (Si) or group III-V compound semiconductor materials (e.g. GaAs).
- the wafer 100 includes a plurality of dies 110 arranged in array and a metal layer 120 , wherein each of the dies 110 includes a surface 111 which can be the active or inactive surface of the die 110 .
- There is a scribe line 130 formed between adjacent dies 110 and the metal layer 120 is formed on the scribe line 130 , wherein the metal layer 120 can electrically connect to the dies 110 for electric test, or the metal layer 120 can be used for cutter aligning in cutting procedure.
- the wafer 100 is cut by a wafer dicing device 200 in the present invention, wherein the wafer dicing device 200 includes a carrier 210 , a cutter 210 and a brush 230 .
- the cutter 220 and the brush 230 are located above the carrier 210 and faced toward the surface 111 of each of the dies 110 .
- the wafer 100 is placed on a bearing surface 211 of the carrier 210 , and the carrier 210 is used to carry the wafer 100 for movement relative to the cutter 220 and the brush 230 in this embodiment, wherein the movement includes horizontal and vertical movement.
- the cutter 220 and the brush 230 can be moved relative to the wafer 100 , wherein the movement also includes horizontal and vertical movement.
- the cutter 220 is a cutting wheel, and a contacting portion 231 of the brush 230 is made of flexible material so that the wafer 100 will not be damaged.
- the contacting portion 231 of the brush 230 can be selected from artificial filament, animal filament or plant filament.
- the contacting portion 231 of the brush 230 is DuPont 612 nylon filament.
- fixing tape 300 between the wafer 100 and the carrier 210 , wherein the fixing tape 300 is used to fix the wafer 100 for preventing the wafer 100 from moving during cutting.
- the cutter 220 includes a terminal 221
- the contacting portion 231 of the brush 230 includes a contacting end 231 a , wherein the terminal 221 of the cutter 220 and the contacting end 231 a of the contacting portion 231 both face toward the bearing surface 211 of the carrier 210 .
- a first height H 1 is defined between the terminal 221 of the cutter 220 and the bearing surface 211
- a second height H 2 is defined between the contacting end 231 a of the contacting portion 231 and the bearing surface 211
- the first height H 1 is equal to or higher than the second height H 2 before step 12 of performing cutting procedure and contacting procedure so that the contacting portion 231 of the brush 230 cannot contact with the wafer 100 is preventable when the carrier 210 is moved upwardly to make the cutter 220 contacting with the wafer 100 .
- the first height H 1 is higher than the second height H 2 .
- a cutting procedure and a contacting procedure are performed in step 12 .
- the cutter 220 is used to cut the metal layer 120 along the scribe line 130 to form a plurality of cutting slots 140 on the wafer 110 , wherein the dies 110 located at both sides of the cutting slot 140 are electrically disconnected with each other.
- the wafer 100 is moved upwardly by the carrier 210 to contact with the cutter 220 in this embodiment, and then the wafer 100 is horizontally moved relative to the cutter 220 by the carrier 210 to cut the metal layer 120 along the scribe line 130 for forming the cutting slot 140 .
- the contacting portion 231 of the brush 230 following the cutter 220 contacts with the surface 111 of the die 110 and at least one cutting slot 140 when the cutter 220 cuts the metal layer 120 along the scribe line 130 .
- FIG. 6 is a cross-sectional view diagram along A-A line in FIG. 5 .
- the metal layer 120 will remain a plurality of metal burrs 121 on the dies 110 when the cutter 220 cuts the metal layer 120 along the scribe line 130 , and the metal burrs 121 will protrude from the surface 111 of each of the dies 110 because of cutting stress.
- FIG. 7 is a cross-sectional view diagram along B-B line in FIG. 5 .
- the contacting portion 231 of the brush 230 can touch the surface 111 of each of the dies 110 and the cutting slot 140 along the cutting slot 140 , and contact with each of the metal burrs 121 , wherein deformation of the contacting portion 231 will occur during the contacting procedure because the contacting portion 231 is made of flexible material.
- FIG. 8 is a cross-sectional view diagram along C-C line in FIG. 5 .
- the contacting procedure can prevent the metal burrs 121 from protruding on the surface 111 of each of the dies 110 .
- each of the metal burrs 121 will be divided from the dies 110 or bent downwardly toward the cutting slot 140 by horizontal push force or vertical press force from the contacting portion 231 of the brush 230 , so the problem that the metal burrs 121 protrude from the surface 111 of each of the dies 110 can be effectively solved.
- the contacting procedure can prevent the metal burrs 121 from electrically connecting with other elements in the follow-up package processes to cause leakage or short circuit, and can prevent the metal burrs 121 from affecting electric signal input or output, or damaging other elements to affect semiconductor efficacy.
- the cutting procedure and the contacting procedure are performed simultaneously in this embodiment, so the wafer 100 can be cleaned by air or water curtain to remove wafer fragment formed during the cutting procedure and the metal burrs 121 divided during the contacting procedure for preventing the wafer fragment or the metal burrs 121 from remaining on the wafer 100 .
- the contacting portion 231 of the brush 230 is placed behind the cutter 220 along with the cutting direction of the cutter 220 , and the cutter 220 and the contacting portion 231 of the brush 230 are located on the same scribe line 130 .
- the contacting portion 231 of the brush 230 can immediately contact with the metal burrs 121 along the cutting slot 140 formed newly to divide the metal burrs 121 from the dies 110 or bend the metal burrs 121 downwardly toward the cutting slot 140 when the cutter 220 cuts the metal layer 120 along the scribe line 130 to form the cutting slot 140 , to prevent the metal burrs 121 from protruding from the surface 111 of the die 110 .
- the contacting procedure can be performed after completing the cutting procedure. That means the contacting portion 231 of the brush 230 contacts with the metal burrs 121 along each of the cutting slots 140 to divide the metal burrs 121 from the die 110 or bend the metal burrs 121 downwardly toward the cutting slot 140 after the cutter 220 cuts the wafer 100 to make all the dies 110 electrically disconnecting with each other.
- FIGS. 9 and 10 Second embodiment of the present invention is illustrated in FIGS. 9 and 10 , the difference between the second embodiment and the first embodiment is the contacting portion 231 of the brush 230 is placed on the side of the cutter 220 along with the cutting direction of the cutter 220 , and the cutter 220 and the contacting portion 231 of the brush 230 are located on the different scribe lines 130 .
- the brush 230 located on the side of the cutter 220 can contact with the metal burrs 121 along the cutting slot 140 formed previously to divide the metal burrs 121 from the die 110 or bend the metal burrs 121 downwardly toward the cutting slot 140 when the cutter 220 cuts the wafer 100 to form new cutting slot 140 .
- the contacting portion 231 of the brush 230 is separated from the cutter 220 by at least one scribe line 130 preferably to prevent interference between the contacting portion 231 of the brush 230 and the cutter 220 .
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dicing (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Description
- This invention generally relates to a wafer dicing method, more particularly to a wafer dicing method able to prevent metal burrs from protruding on die surface.
- With reference to
FIG. 11 , awafer 400 is firstly fixed on acarrier 600 by atape 500 in conventional wafer dicing method, and then using a cutter (not shown) to cut thewafer 400 to form a plurality ofchips 410. However, a plurality ofmetal burrs 411 will be formed protruded from the surface of thechip 410 during cutting. With reference toFIG. 12 , when thechip 410 interconnects with a plurality ofbumps 710 on asubstrate 700 which is made of flexible material, glass or other materials by flip-chip technology, themetal burrs 411 protruded from the surface of thechip 410 will contact with thesubstrate 700 to cause leakage or short circuit of semiconductor structure, or affect electric signal input or output. - The primary object of the present invention is to use a brush to contact with metal burrs formed result from cutting metal layer to prevent the metal burrs from protruding on die surface.
- A wafer dicing method of the present invention comprises providing a wafer including a plurality of dies and a metal layer, wherein each of the dies includes a surface and there is a scribe line formed between adjacent dies, and wherein the metal layer is formed on the scribe line; and performing a cutting procedure and a contacting procedure, wherein a cutter is used to cut the metal layer along the scribe line during the cutting procedure to form a plurality of cutting slots on the wafer, and the metal layer cut by the cutter remains a plurality of metal burrs on the dies, and wherein a contacting portion of a brush is used to contact with each of the metal burrs along the cutting slot during the contacting procedure to prevent each of the metal burrs from protruding from the surface of each of the dies.
- The present invention uses the brush to contact with the metal burrs during the contacting procedure for preventing the metal burrs formed during the cutting procedure from protruding on the surface of the die. The purpose of preventing the metal burrs from protruding on the die surface is to prevent the metal burrs from contacting with other components during follow-up package process to cause leakage/short circuit or affect electric signal transmission, and also prevent the metal burrs from damaging other components during follow-up package process.
-
FIG. 1 is a flow chart illustrating a wafer dicing method in accordance with a first embodiment of the present invention. -
FIG. 2 is a perspective diagram illustrating a wafer and a wafer dicing device in accordance with the first embodiment of the present invention. -
FIG. 3 is a lateral view diagram illustrating the wafer and the wafer dicing device in accordance with the first embodiment of the present invention. -
FIG. 4 is a lateral view diagram illustrating the wafer and the wafer dicing device in accordance with the first embodiment of the present invention. -
FIG. 5 is a lateral view diagram illustrating the wafer and the wafer dicing device in accordance with the first embodiment of the present invention. -
FIG. 6 is a cross-sectional view diagram along A-A line inFIG. 5 . -
FIG. 7 is a cross-sectional view diagram along B-B line inFIG. 5 . -
FIG. 8 is a cross-sectional view diagram along C-C line inFIG. 5 . -
FIG. 9 is a lateral view diagram illustrating a wafer and a wafer dicing device in accordance with a second embodiment of the present invention. -
FIG. 10 is a lateral view diagram illustrating the wafer and the wafer dicing device in accordance with the second embodiment of the present invention. -
FIG. 11 is a diagram illustrating a wafer after cutting. -
FIG. 12 is a diagram illustrating a chip after flip-chip interconnection. - With reference to
FIG. 1 , awafer dicing method 10 in accordance with a first embodiment of the present invention includes step 11 of providing wafer and step 12 of performing cutting procedure and contacting procedure. - With reference to
FIGS. 1, 2 and 3 , awafer 100 is provided in step 11, preferably, thewafer 100 is made of silicon (Si) or group III-V compound semiconductor materials (e.g. GaAs). Thewafer 100 includes a plurality of dies 110 arranged in array and ametal layer 120, wherein each of the dies 110 includes asurface 111 which can be the active or inactive surface of thedie 110. There is ascribe line 130 formed between adjacent dies 110, and themetal layer 120 is formed on thescribe line 130, wherein themetal layer 120 can electrically connect to the dies 110 for electric test, or themetal layer 120 can be used for cutter aligning in cutting procedure. - With reference to
FIGS. 2 and 3 , thewafer 100 is cut by awafer dicing device 200 in the present invention, wherein thewafer dicing device 200 includes acarrier 210, acutter 210 and abrush 230. Thecutter 220 and thebrush 230 are located above thecarrier 210 and faced toward thesurface 111 of each of the dies 110. Thewafer 100 is placed on abearing surface 211 of thecarrier 210, and thecarrier 210 is used to carry thewafer 100 for movement relative to thecutter 220 and thebrush 230 in this embodiment, wherein the movement includes horizontal and vertical movement. In other embodiment, thecutter 220 and thebrush 230 can be moved relative to thewafer 100, wherein the movement also includes horizontal and vertical movement. Preferably, thecutter 220 is a cutting wheel, and a contactingportion 231 of thebrush 230 is made of flexible material so that thewafer 100 will not be damaged. The contactingportion 231 of thebrush 230 can be selected from artificial filament, animal filament or plant filament. In this embodiment, the contactingportion 231 of thebrush 230 is DuPont 612 nylon filament. - With reference to
FIGS. 2 and 3 , there is afixing tape 300 between thewafer 100 and thecarrier 210, wherein thefixing tape 300 is used to fix thewafer 100 for preventing thewafer 100 from moving during cutting. - With reference to
FIG. 3 , thecutter 220 includes aterminal 221, and the contactingportion 231 of thebrush 230 includes a contactingend 231 a, wherein theterminal 221 of thecutter 220 and the contactingend 231 a of the contactingportion 231 both face toward thebearing surface 211 of thecarrier 210. A first height H1 is defined between theterminal 221 of thecutter 220 and thebearing surface 211, and a second height H2 is defined between the contactingend 231 a of the contactingportion 231 and thebearing surface 211, wherein the first height H1 is equal to or higher than the second height H2 beforestep 12 of performing cutting procedure and contacting procedure so that the contactingportion 231 of thebrush 230 cannot contact with thewafer 100 is preventable when thecarrier 210 is moved upwardly to make thecutter 220 contacting with thewafer 100. In this embodiment, the first height H1 is higher than the second height H2. - With reference to
FIGS. 1, 4 and 5 , a cutting procedure and a contacting procedure are performed instep 12. Thecutter 220 is used to cut themetal layer 120 along thescribe line 130 to form a plurality ofcutting slots 140 on thewafer 110, wherein thedies 110 located at both sides of thecutting slot 140 are electrically disconnected with each other. With reference toFIG. 5 , thewafer 100 is moved upwardly by thecarrier 210 to contact with thecutter 220 in this embodiment, and then thewafer 100 is horizontally moved relative to thecutter 220 by thecarrier 210 to cut themetal layer 120 along thescribe line 130 for forming thecutting slot 140. In this embodiment, the contactingportion 231 of thebrush 230 following thecutter 220 contacts with thesurface 111 of thedie 110 and at least onecutting slot 140 when thecutter 220 cuts themetal layer 120 along thescribe line 130. - With reference to
FIGS. 5 and 6 ,FIG. 6 is a cross-sectional view diagram along A-A line inFIG. 5 . Themetal layer 120 will remain a plurality ofmetal burrs 121 on thedies 110 when thecutter 220 cuts themetal layer 120 along thescribe line 130, and themetal burrs 121 will protrude from thesurface 111 of each of thedies 110 because of cutting stress. - With reference to
FIGS. 5 and 7 ,FIG. 7 is a cross-sectional view diagram along B-B line inFIG. 5 . In the contacting procedure, the contactingportion 231 of thebrush 230 can touch thesurface 111 of each of thedies 110 and thecutting slot 140 along thecutting slot 140, and contact with each of themetal burrs 121, wherein deformation of the contactingportion 231 will occur during the contacting procedure because the contactingportion 231 is made of flexible material. - With reference to
FIGS. 5 and 8 ,FIG. 8 is a cross-sectional view diagram along C-C line inFIG. 5 . The contacting procedure can prevent themetal burrs 121 from protruding on thesurface 111 of each of thedies 110. Preferably, each of themetal burrs 121 will be divided from thedies 110 or bent downwardly toward thecutting slot 140 by horizontal push force or vertical press force from the contactingportion 231 of thebrush 230, so the problem that themetal burrs 121 protrude from thesurface 111 of each of thedies 110 can be effectively solved. Therefore, the contacting procedure can prevent themetal burrs 121 from electrically connecting with other elements in the follow-up package processes to cause leakage or short circuit, and can prevent themetal burrs 121 from affecting electric signal input or output, or damaging other elements to affect semiconductor efficacy. - The cutting procedure and the contacting procedure are performed simultaneously in this embodiment, so the
wafer 100 can be cleaned by air or water curtain to remove wafer fragment formed during the cutting procedure and themetal burrs 121 divided during the contacting procedure for preventing the wafer fragment or themetal burrs 121 from remaining on thewafer 100. - With reference to
FIG. 5 , in this embodiment, the contactingportion 231 of thebrush 230 is placed behind thecutter 220 along with the cutting direction of thecutter 220, and thecutter 220 and the contactingportion 231 of thebrush 230 are located on thesame scribe line 130. Owing to the cutting procedure and the contacting procedure are performed simultaneously, the contactingportion 231 of thebrush 230 can immediately contact with themetal burrs 121 along thecutting slot 140 formed newly to divide themetal burrs 121 from thedies 110 or bend themetal burrs 121 downwardly toward thecutting slot 140 when thecutter 220 cuts themetal layer 120 along thescribe line 130 to form thecutting slot 140, to prevent themetal burrs 121 from protruding from thesurface 111 of thedie 110. - In other embodiment, the contacting procedure can be performed after completing the cutting procedure. That means the contacting
portion 231 of thebrush 230 contacts with themetal burrs 121 along each of thecutting slots 140 to divide themetal burrs 121 from thedie 110 or bend themetal burrs 121 downwardly toward thecutting slot 140 after thecutter 220 cuts thewafer 100 to make all thedies 110 electrically disconnecting with each other. - Second embodiment of the present invention is illustrated in
FIGS. 9 and 10 , the difference between the second embodiment and the first embodiment is the contactingportion 231 of thebrush 230 is placed on the side of thecutter 220 along with the cutting direction of thecutter 220, and thecutter 220 and the contactingportion 231 of thebrush 230 are located on thedifferent scribe lines 130. Owing to the cutting procedure and the contacting procedure are performed simultaneously, thebrush 230 located on the side of thecutter 220 can contact with themetal burrs 121 along thecutting slot 140 formed previously to divide themetal burrs 121 from thedie 110 or bend themetal burrs 121 downwardly toward thecutting slot 140 when thecutter 220 cuts thewafer 100 to formnew cutting slot 140. With reference toFIG. 10 , the contactingportion 231 of thebrush 230 is separated from thecutter 220 by at least onescribe line 130 preferably to prevent interference between the contactingportion 231 of thebrush 230 and thecutter 220. - While this invention has been particularly illustrated and described in detail with respect to the preferred embodiments thereof, it will be clearly understood by those skilled in the art that is not limited to the specific features shown and described and various modified and changed in form and details may be made without departing from the spirit and scope of this invention.
Claims (4)
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TW105130694 | 2016-09-23 | ||
TW105130694A TW201812887A (en) | 2016-09-23 | 2016-09-23 | Wafer dicing method |
TW105130694A | 2016-09-23 |
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US9929051B1 US9929051B1 (en) | 2018-03-27 |
US20180090379A1 true US20180090379A1 (en) | 2018-03-29 |
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US15/342,241 Active US9929051B1 (en) | 2016-09-23 | 2016-11-03 | Wafer dicing method |
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US (1) | US9929051B1 (en) |
JP (1) | JP2018050020A (en) |
KR (1) | KR101847948B1 (en) |
CN (1) | CN107871707A (en) |
SG (2) | SG10201609698PA (en) |
TW (1) | TW201812887A (en) |
Family Cites Families (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3735483A (en) * | 1970-03-20 | 1973-05-29 | Gen Electric | Semiconductor passivating process |
JPS61181615A (en) | 1985-02-07 | 1986-08-14 | 三菱電機株式会社 | Cutter for semiconductor wafer |
JPH02155611A (en) | 1988-12-07 | 1990-06-14 | Mitsubishi Electric Corp | Dicing apparatus |
JP2680453B2 (en) * | 1989-12-11 | 1997-11-19 | 株式会社東京精密 | Dicing method |
US6165813A (en) * | 1995-04-03 | 2000-12-26 | Xerox Corporation | Replacing semiconductor chips in a full-width chip array |
JP3496347B2 (en) * | 1995-07-13 | 2004-02-09 | 株式会社デンソー | Semiconductor device and manufacturing method thereof |
JP2000173952A (en) * | 1998-12-03 | 2000-06-23 | Fujitsu Quantum Device Kk | Semiconductor device and its manufacture |
JP2001326193A (en) | 2000-05-15 | 2001-11-22 | Sony Corp | Dicing device and dicing method |
US6423565B1 (en) * | 2000-05-30 | 2002-07-23 | Kurt L. Barth | Apparatus and processes for the massproduction of photovotaic modules |
JP2002043474A (en) * | 2000-07-21 | 2002-02-08 | Nakamura Seisakusho Kk | Forming method of package for electronic component |
US6946326B2 (en) * | 2000-12-05 | 2005-09-20 | Analog Devices, Inc. | Method and device for protecting micro electromechanical systems structures during dicing of a wafer |
JP2002224929A (en) * | 2001-01-30 | 2002-08-13 | Takemoto Denki Seisakusho:Kk | Device for cutting plate-like workpiece |
JP2003133256A (en) | 2001-10-23 | 2003-05-09 | Sharp Corp | Dicing device |
JP2003209089A (en) | 2002-01-17 | 2003-07-25 | Sony Corp | Cleaning method, cleaning device and dicing device for wafer |
WO2004061935A1 (en) * | 2002-12-27 | 2004-07-22 | Fujitsu Limited | Method for forming bump, semiconductor devcie and its manufacturing method, substrate treatment device, and semiconductor manufacturing apparatus |
JP3945415B2 (en) * | 2003-02-14 | 2007-07-18 | セイコーエプソン株式会社 | Manufacturing method of semiconductor device |
JP2005142399A (en) | 2003-11-07 | 2005-06-02 | Tokyo Seimitsu Co Ltd | Dicing method |
JP2005191332A (en) * | 2003-12-26 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Method for manufacturing semiconductor device and semiconductor device manufacturing equipment |
US6974726B2 (en) * | 2003-12-30 | 2005-12-13 | Intel Corporation | Silicon wafer with soluble protective coating |
KR100630698B1 (en) * | 2004-08-17 | 2006-10-02 | 삼성전자주식회사 | Semiconductor package improving a solder joint reliability and method for manufacturing the same |
JP2007125667A (en) * | 2005-11-07 | 2007-05-24 | Disco Abrasive Syst Ltd | Cutting device of substrate |
JP4777072B2 (en) | 2006-01-11 | 2011-09-21 | 株式会社東京精密 | Dicing machine |
KR20090024408A (en) | 2007-09-04 | 2009-03-09 | 삼성전자주식회사 | Appratus for sawing a wafer having a nozzle eliminating a metal burr in a scribe lane, method of sawing the wafer and semiconductor package fabricated thereby the same |
US7951688B2 (en) * | 2007-10-01 | 2011-05-31 | Fairchild Semiconductor Corporation | Method and structure for dividing a substrate into individual devices |
JP5156459B2 (en) | 2008-04-09 | 2013-03-06 | Towa株式会社 | Substrate cutting method and apparatus |
GB2464549B (en) * | 2008-10-22 | 2013-03-27 | Cambridge Silicon Radio Ltd | Improved wafer level chip scale packaging |
US9548240B2 (en) * | 2010-03-15 | 2017-01-17 | STATS ChipPAC Pte. Ltd. | Semiconductor device and method of forming repassivation layer for robust low cost fan-out semiconductor package |
DE102010040062B4 (en) * | 2010-08-31 | 2014-05-22 | Globalfoundries Dresden Module One Limited Liability Company & Co. Kg | A substrate distribution technique for separating semiconductor chips with less area consumption |
US8365398B2 (en) * | 2011-01-26 | 2013-02-05 | Jeng-Jye Shau | Accurate alignment for stacked substrates |
DE102012111358A1 (en) * | 2012-11-23 | 2014-05-28 | Osram Opto Semiconductors Gmbh | Method for separating a composite into semiconductor chips and semiconductor chip |
US9355906B2 (en) * | 2013-03-12 | 2016-05-31 | Taiwan Semiconductor Manufacturing Company, Ltd. | Packaging devices and methods of manufacture thereof |
US9458012B2 (en) * | 2014-02-18 | 2016-10-04 | Freescale Semiconductor, Inc. | Method for shielding MEMS structures during front side wafer dicing |
JP2015220240A (en) | 2014-05-14 | 2015-12-07 | 株式会社ディスコ | Processing method for wafer |
JP6338478B2 (en) | 2014-07-18 | 2018-06-06 | Towa株式会社 | Cutting method and product manufacturing method |
JP5976055B2 (en) | 2014-08-21 | 2016-08-23 | 力晶科技股▲ふん▼有限公司 | Semiconductor wafer, semiconductor chip, semiconductor device and manufacturing method thereof |
KR20160057966A (en) * | 2014-11-14 | 2016-05-24 | 가부시끼가이샤 도시바 | Processing apparatus, nozzle and dicing apparatus |
JP2016134433A (en) | 2015-01-16 | 2016-07-25 | 株式会社東芝 | Dicing machine |
-
2016
- 2016-09-23 TW TW105130694A patent/TW201812887A/en unknown
- 2016-11-03 US US15/342,241 patent/US9929051B1/en active Active
- 2016-11-04 KR KR1020160146339A patent/KR101847948B1/en active IP Right Grant
- 2016-11-07 JP JP2016217014A patent/JP2018050020A/en active Pending
- 2016-11-08 CN CN201610980207.9A patent/CN107871707A/en active Pending
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- 2016-11-18 SG SG10201808373QA patent/SG10201808373QA/en unknown
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CN107871707A (en) | 2018-04-03 |
TW201812887A (en) | 2018-04-01 |
KR20180033028A (en) | 2018-04-02 |
SG10201808373QA (en) | 2018-10-30 |
KR101847948B1 (en) | 2018-04-11 |
JP2018050020A (en) | 2018-03-29 |
US9929051B1 (en) | 2018-03-27 |
SG10201609698PA (en) | 2018-04-27 |
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