WO2017018275A1 - ガラス基板、積層基板、積層基板の製造方法、積層体、梱包体、およびガラス基板の製造方法 - Google Patents
ガラス基板、積層基板、積層基板の製造方法、積層体、梱包体、およびガラス基板の製造方法 Download PDFInfo
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- WO2017018275A1 WO2017018275A1 PCT/JP2016/071172 JP2016071172W WO2017018275A1 WO 2017018275 A1 WO2017018275 A1 WO 2017018275A1 JP 2016071172 W JP2016071172 W JP 2016071172W WO 2017018275 A1 WO2017018275 A1 WO 2017018275A1
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- Prior art keywords
- glass substrate
- substrate
- convex surface
- concave surface
- laminated
- Prior art date
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- 239000000758 substrate Substances 0.000 title claims abstract description 566
- 239000011521 glass Substances 0.000 title claims abstract description 336
- 238000004519 manufacturing process Methods 0.000 title claims description 32
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 136
- 239000010703 silicon Substances 0.000 claims abstract description 136
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 135
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- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
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Images
Classifications
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- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
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- H—ELECTRICITY
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- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68757—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a coating or a hardness or a material
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- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
- B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
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- B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
- B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
- B32B17/10889—Making laminated safety glass or glazing; Apparatus therefor shaping the sheets, e.g. by using a mould
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- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
- B65D85/48—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for glass sheets
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- C—CHEMISTRY; METALLURGY
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- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/0235—Ribbons
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- C—CHEMISTRY; METALLURGY
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- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0005—Other surface treatment of glass not in the form of fibres or filaments by irradiation
- C03C23/0025—Other surface treatment of glass not in the form of fibres or filaments by irradiation by a laser beam
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
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- 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
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
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- 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
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67282—Marking devices
-
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
- B32B2315/08—Glass
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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
- H01L2223/54493—Peripheral marks on wafers, e.g. orientation flats, notches, lot number
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Definitions
- the present invention relates to a glass substrate, a laminated substrate, a method for producing a laminated substrate, a laminate, a package, and a method for producing a glass substrate.
- the degree of integration is increasing while miniaturization is progressing. Accordingly, there is an increasing demand for packaging technology for devices having a high degree of integration.
- the conventional semiconductor assembly process after the wafer-state glass substrate and the silicon-containing substrate are cut, the glass substrate and the silicon-containing substrate are bonded together, and die bonding, wire bonding, molding, etc. A series of assembly processes is performed.
- Patent Document 1 proposes a supporting glass substrate used for a wafer level package.
- the present invention provides a glass substrate, a laminated substrate, and a laminated substrate in which bubbles are less likely to enter between the glass substrate and the silicon-containing substrate in a step of bonding a glass substrate and a substrate containing silicon to form a laminated substrate.
- the manufacturing method of this, a laminated body, a package, and the manufacturing method of a glass substrate are provided.
- the glass substrate of the present invention is a glass substrate for forming a laminated substrate by being laminated with a substrate containing silicon, the glass substrate having a concave surface and a convex surface, and identifying the concave surface and the convex surface It is characterized by having a mark that can be made.
- the laminated substrate of the present invention is formed by laminating the convex surface of the glass substrate and a substrate containing silicon.
- the method for producing a laminated substrate of the present invention includes a step of bonding a curved surface formed of a convex surface or a concave surface of the glass substrate and a curved surface formed of a convex surface or a concave surface of a substrate containing silicon so that the curved surfaces of each other follow each other.
- the laminate of the present invention is formed by attaching another glass substrate to the glass substrate constituting the laminate substrate.
- the package of the present invention is formed by packing two or more of the glass substrates, and is packed so that the convex surface of one glass substrate of the glass substrate faces the concave surface of the other glass substrate.
- the packaging body of the present invention is formed by packing two or more of the above-mentioned multilayer substrates, and a substrate containing silicon constituting one multilayer substrate of the multilayer substrate is a glass substrate constituting another multilayer substrate It is packed so that it may oppose the concave surface of.
- the packaging body of the present invention is formed by packing two or more of the above-mentioned laminates, and a substrate containing silicon constituting one laminate of the laminate is a glass substrate constituting another laminate. It is packed so that it may oppose the concave surface of.
- the method for producing a glass substrate of the present invention is a method for producing a glass substrate for forming a laminated substrate by being laminated with a substrate containing silicon, A melting step of heating the glass raw material to obtain molten glass; A molding step for obtaining a glass ribbon by forming the molten glass into a plate shape; and A slow cooling step of slowly cooling the glass ribbon; A cutting step of cutting the glass ribbon to obtain a glass substrate; An inspection step of discriminating between the concave surface and the convex surface of the glass substrate; And a step of marking at least one of the concave surface and the convex surface to obtain the glass substrate.
- the glass substrate, the laminated substrate, the laminated substrate manufacturing method, the laminated body, the package, and the glass substrate manufacturing method of the present invention in the step of laminating the glass substrate and the silicon-containing substrate, It is difficult for bubbles to enter between the glass substrate and the substrate containing silicon.
- FIG. 1A and 1B show the glass substrate of the first embodiment of the present invention to be bonded to a substrate containing silicon
- FIG. 1A is a cross-sectional view before bonding
- FIG. ) Shows a cross-sectional view after bonding
- 2A to 2C show the glass substrate of the first embodiment of the present invention
- FIG. 2A is a top view
- FIG. 2B is a bottom view
- FIG. 2C is a cross-sectional view.
- Indicates. 3A to 3C show a glass substrate in which notches are formed as marks
- FIG. 3A is a top view
- FIG. 3B is a bottom view
- FIG. 3C is a cross-sectional view.
- FIGS. 5A to 5C show a state in which the glass substrate according to the first embodiment of the present invention is supported by a support member.
- FIG. 5A is a plan view
- FIGS. (C) shows a cross-sectional view.
- 6A to 6C show a state in which the glass substrate according to the first embodiment of the present invention is supported by the support member.
- FIG. 6A is a plan view
- FIG. 6B and FIG. C) shows a cross-sectional view.
- 7A to 7C show a glass substrate according to the second embodiment of the present invention.
- FIG. 7A is a top view
- FIG. 7A is a top view
- FIG. 7A is a top view
- FIG. 7B is a bottom view
- FIG. 7C is a cross-sectional view.
- Indicates. 8A to 8C show a glass substrate according to a third embodiment of the present invention.
- FIG. 8A is a top view
- FIG. 8B is a bottom view
- FIG. 8C is a cross-sectional view.
- Indicates. 9A to 9C show a glass substrate according to a third embodiment of the present invention.
- FIG. 9A is a top view
- FIG. 9B is a bottom view
- FIG. 9C is a cross-sectional view.
- FIG. 10 shows a cross-sectional view of a package according to an embodiment of the present invention.
- FIG. 11 shows a cross-sectional view of a package according to an embodiment of the present invention.
- 12A and 12B are cross-sectional views for explaining the relationship between the curved surface of the glass substrate and the curved surface of the substrate containing silicon in the manufacturing process of the laminated
- 1A and 1B are cross-sectional views of the glass substrate according to the first embodiment of the present invention to be bonded to a substrate containing silicon.
- the glass substrate G1 of the first embodiment of the present invention shown in FIG. 1A is bonded at a temperature of 200 ° C. to 400 ° C., for example, with a substrate 10 containing silicon and a resin 20 interposed therebetween. Together, a laminated substrate 30 shown in FIG. 1B is obtained.
- a full-size wafer for example, a silicon wafer
- the substrate 10 containing silicon may be a wafer on which an element is formed, a substrate in which a chip (for example, a silicon chip) obtained by cutting an element from the wafer is molded in a resin, a silicon wafer, a silicon chip, or the like.
- a silicon substrate other than a silicon substrate such as a glass substrate such as TGV or a resin substrate.
- the silicon substrate and the glass substrate are connected to each other by, for example, copper.
- the resin 20 can withstand a temperature of 200 to 400 ° C., for example.
- the glass substrate of the first embodiment of the present invention is suitable as a supporting glass substrate for a fan-out type wafer level package. Further, it is suitable as a glass substrate for an image sensor such as MEMS, CMOS, CIS, etc., which is effective for miniaturization of an element by a wafer level package, a glass interposer (GIP) perforated substrate, and a support glass for a semiconductor back grind.
- an image sensor such as MEMS, CMOS, CIS, etc.
- GIP glass interposer
- the glass substrate of the first embodiment of the present invention has no waviness, one main surface is a concave surface, and the other one main surface that faces is a convex surface.
- the convex surface or concave surface referred to in the present invention means identifying whether a macroscopic curved surface is a convex surface or a concave surface using the SEMI standard. From this, the “no undulation” of the glass substrate of the first embodiment does not mean that there is no microscopic undulation in the glass substrate.
- the convex surface or concave surface referred to in the present invention may be identified by using SEMI standard BOW (MF534) or WARP (MF657, MF1390).
- BOW may be used
- WARP may be used.
- BOW is a substrate that is not sucked and fixed, and is represented by the distance from a specified reference plane to the center plane of the substrate.
- the reference surface side is a concave surface, and the surface opposite to the concave surface is a convex surface.
- the reference plane is determined by the thickness center line of the substrate.
- WARP is a substrate that is not sucked and fixed, and is represented by the difference between the maximum value and the minimum value of the distance between the reference surface and the substrate center surface with respect to a specified reference surface.
- the reference plane is determined by the least square method, and the substrate center plane is set so that the difference between the maximum value and the minimum value is minimized.
- the side where the maximum value exists is a convex surface, and the surface where the minimum value exists is a concave surface.
- the convex surface does not have a reverse warp that becomes a depression.
- the curvature of a convex surface is small so that a laminated substrate may not warp large. Therefore, it is difficult to distinguish which is concave or convex when stacking with a substrate containing silicon, and a mark that can distinguish the concave and convex surfaces is required.
- FIG. 2A to 2C show the glass substrate G1 according to the first embodiment of the present invention.
- FIG. 2A is a top view
- FIG. 2B is a bottom view
- FIG. It is sectional drawing.
- the glass substrate G1 of the first embodiment of the present invention is a glass substrate for forming a laminated substrate by being laminated with a substrate containing silicon, and the glass substrate G1 has a concave surface G1A and a convex surface G1B.
- the concave surface G1A and the convex surface G1B have a mark that can be distinguished.
- the concave surface G1A and the convex surface G1B of the glass substrate G1 can be identified, and in the step of bonding the glass substrate G1 and the silicon-containing substrate to form a laminated substrate, By bonding the convex surface G1B of the substrate G1 and the substrate containing silicon, bubbles are less likely to enter between the glass substrate G1 and the substrate containing silicon. When bubbles enter, the flatness of the substrate containing silicon constituting the laminated substrate deteriorates, and in the step of polishing the substrate containing silicon, the thickness deviation of the substrate containing silicon becomes large, and patterning is difficult in the subsequent steps. .
- the laminated substrate when the laminated substrate is heated, bubbles expand, and the glass substrate and the substrate containing silicon are easily separated.
- the glass substrate G1 of the first embodiment of the present invention is laminated, bubbles are unlikely to enter between the glass substrate G1 and the substrate containing silicon. Therefore, the flatness of the substrate containing silicon constituting the laminated substrate is good, and in the step of polishing the substrate containing silicon, the thickness deviation of the substrate containing silicon is small, and patterning is easy in the subsequent steps. Further, even when the laminated substrate is heated, the glass substrate and the substrate containing silicon are hardly separated.
- the glass substrate G1 of the first embodiment of the present invention is formed on the convex surface G1B, two marks 130 and 140 having a shape different from each other and identifying the concave surface G1A and the convex surface G1B formed on the concave surface G1A.
- Two marks 150 and 160 having the same shape as the marks on the concave surface G1A corresponding to the positions facing the two marks 130 and 140 on the concave surface G1A for identifying the concave surface G1A and the convex surface G1B, respectively. It is preferable that the line L connecting the two marks 150 and 160 so as to be the shortest on the convex surface G1B does not pass through the center of gravity F on the convex surface G1B.
- the concave surface G1A and the convex surface G1B of the glass substrate G1 can be identified by the marks 150, 160, 130, and 140.
- the mark may be, for example, a paint or a dent engraved by a laser or the like.
- “the two marks 130 and 140 having different shapes formed on the concave surface G1A and the marks on the concave surface G1A corresponding to the positions facing the two marks 130 and 140 of the concave surface G1A formed on the convex surface G1B. Includes two marks 150 and 160 having the same shape as "", even if the two marks 130 and 140 of the concave surface G1A are formed so as to penetrate the convex surface G1B, and the two marks 150 and 160 of the concave surface G1B are configured. Means good. Examples of such marks include through-holes formed by a laser or the like, and notches such as notches and orientation flats (hereinafter referred to as orientation flats) formed at the end of the glass substrate G1.
- An orientation flat is a notch formed by cutting an end of a glass substrate into an arc shape.
- the notch is a V-shaped or U-shaped notch formed at the end of the glass substrate.
- 3A to 3C show a glass substrate in which a notch is formed as a mark.
- FIG. 3A is a top view
- FIG. 3B is a bottom view
- FIG. 3C is a cross-sectional view. .
- the position of the notch can be detected by, for example, a laser on the glass substrate G1.
- the notch may be detected by imaging the glass substrate with a camera and performing image analysis. Since the mark is a notch, when the circuit pattern is formed on the substrate 10 containing silicon, the position and angle of the substrate 10 containing silicon can be specified in accordance with the notch, and the circuit pattern can be misaligned. Can be suppressed.
- the notch is a notch, the loss area of the glass substrate G1 is small, and it is easy to bond the substrate 10 containing silicon. If the notch is orientation flat, it is easy to form a notch, and the position of the notch is easy to detect.
- the mark is preferably in an area within 20 mm from the end of the glass substrate G1. If it is an area within 20 mm from the edge of the glass substrate G1, it does not interfere with the circuit pattern formed on the substrate containing silicon even if there is a mark.
- the position of the mark is more preferably in a region within 10 mm from the end of the glass substrate G1, more preferably in a region within 5 mm, and particularly preferably at the end of the glass substrate.
- the mark is preferably formed by cutting out the end surface of the glass substrate G1. Examples of such marks include the notches and orientation flats described above.
- the concave surface G1A and the convex surface G1B will be described.
- the marks 150 and 160 there are two marks 150 and 160 having different shapes, and the mark 150 is larger than the mark 160.
- the marks 150 and 160 are circular through holes, and the marks 150 and 130 and the marks 160 and 140 are the same.
- the convex surface G1B and the mark 150 to the glass substrate G1 If it is as shown in FIG. 2B where the mark 160 is in the region of 180 ° counterclockwise with respect to the center of gravity I ( ⁇ is greater than 180 °), it can be seen that it is a concave surface G1A.
- the mark 160 is formed at a position where ⁇ is 180 °, the concave surface G1A and the convex surface G1B cannot be distinguished.
- the line connecting the two marks 150, 160 on the convex surface G1B so as to be the shortest on the convex surface G1B passes through the center of gravity F on the convex surface G1B.
- the line connecting the two marks 150, 160 of the convex surface G1B so as to be the shortest does not pass through the center of gravity F on the convex surface.
- ⁇ does not become 180 °, and the concave surface G1A and the convex surface G1B can be distinguished.
- the line connecting the two marks 150 and 160 on the convex surface G1B so as to be the shortest does not pass through a region of 1 mm from the center of gravity F on the convex surface, more preferably not through a region of 5 mm. More preferably, it does not pass through.
- the positions of the marks 150 and 160 can be specified by, for example, imaging the convex surface G1B of the glass substrate G1 with a camera and performing image analysis.
- 4 (A) to 4 (B) are cross-sectional views showing a state in which the glass substrate of the first embodiment of the present invention and the substrate containing silicon are bonded together.
- FIG. 4A shows a state in which the glass substrate G1 is bonded to the substrate 10 containing silicon through the resin 20 so that the convex surface G1B of the glass substrate G1 becomes a bonding surface.
- FIG. 4B shows a laminated substrate 30 formed by bonding the convex surface G1B of the glass substrate G1 and the substrate 10 containing silicon via the resin 20.
- the laminated substrate 30 formed by bonding the glass substrate G1 and the substrate 10 containing silicon is less likely to have bubbles between the glass substrate G1 and the substrate 10 containing silicon.
- residual stress is unlikely to occur in the glass substrate G1 and the substrate 10 containing silicon, and cracking and chipping are unlikely to occur.
- stress is not easily generated in the wiring, and the wiring is not easily disconnected.
- FIGS. 5A to 5C and FIGS. 6A to 6C show a state when the glass substrate of the first embodiment of the present invention is supported by the support member.
- 5A and 6A are plan views
- FIGS. 5B and 5C and FIGS. 6B and 6C are cross-sectional views.
- 5B and 6B are cross-sectional views when the convex surface G1B is supported
- FIGS. 5C and 6C are cross-sectional views when the concave surface G1A is supported.
- the glass substrate G1 of the first embodiment of the present invention is preferably supported at four points by the support member 110 as shown in FIG.
- contamination of the surface of the glass substrate G1 due to dust or the like can be prevented.
- the glass substrate G1 bends due to its own weight, if the convex surface G1B of the glass substrate G1 is supported by the support member 110 as shown in FIG. 5B and stored and transported, the glass substrate G1 is likely to be deformed due to the deflection. On the other hand, it is preferable to store and transport the concave surface G1A of the glass substrate G1 supported by the support member 110 as shown in FIG. 5C because the glass substrate G1 is difficult to deform.
- the glass substrate G1 may be supported on two sides by the support member 120 as shown in FIGS.
- the glass substrate G1 can be stably stored and transported by being supported on two sides. Further, when the glass substrate G1 is stored and transported, contamination of the glass substrate G1 surface due to dust or the like can be prevented. As shown in FIG. 6C, it is more preferable to support the concave surface G1A of the glass substrate G1 because the glass substrate G1 is difficult to deform.
- the thickness of the glass substrate is V (unit: mm)
- the gravity center of the convex surface G1B and the horizontal plane U / V is preferably 0.05 to 50, where U (unit: mm) is the shortest distance between If U / V is 0.05 or more, in the step of laminating the glass substrate G1 and the substrate containing silicon to form a laminated substrate, by bonding the convex surface G1B of the glass substrate G1 and the substrate containing silicon, It is difficult for bubbles to enter between the glass substrate G1 and the substrate containing silicon.
- U / V is more preferably 1 or more, and further preferably 5 or more. If U / V is 50 or less, it is easy to bond the glass substrate G1 and the substrate containing silicon. U / V is more preferably 30 or less, and even more preferably 10 or less.
- FIG. 7A to 7C show a glass substrate G2 according to the second embodiment of the present invention.
- FIG. 7A is a top view
- FIG. 7B is a bottom view
- FIG. It is sectional drawing.
- two marks 230, 240 having a mark that can distinguish the concave surface G2A and the convex surface G2B are formed on the concave surface G2A, and the distances from the center of gravity on the concave surface G2A are different from each other.
- the line M connecting the two marks 210 and 220 so as to be the shortest on the convex surface G2B does not pass through the center of gravity J on the convex surface G2B. If this condition is satisfied, the concave surface G2A and the convex surface G2B of the glass substrate G2 can be more reliably identified by the marks 210, 220, 230, and 240.
- FIGS. 7A and 7B there are two marks 230 and 240 having different distances S and T from the center of gravity K on the concave surface G2A on the concave surface G2A of the glass substrate G2. Is closer to the center of gravity K than the mark 240.
- the marks 210 and 220 are circular through holes, and the marks 210 and 230 and the marks 220 and 240 are the same.
- a mark 220 is marked in a region less than 180 ° counterclockwise from the mark 210 with respect to the center of gravity J of the glass substrate G2 [ ⁇ in FIG. 7A is less than 180 °].
- ⁇ in FIG. 7A is less than 180 °.
- the concave surface G2A cannot be distinguished from the convex surface G2B.
- a line connecting the two marks 210 and 220 on the convex surface G2B so as to be the shortest passes through the center of gravity J on the convex surface G2B.
- the line connecting the two marks 210 and 220 of the convex surface G2B so as to be the shortest on the convex surface G2B does not pass through the center of gravity J on the convex surface.
- the line connecting the two marks 210, 220 of the convex surface G2B so as to be the shortest on the convex surface G2B preferably does not pass through the 1 mm region from the center of gravity J on the convex surface, and more preferably does not pass through the 5 mm region. More preferably, it does not pass through a 10 mm area.
- the positions of the marks 210 and 220 can be specified by, for example, imaging the convex surface G2B of the glass substrate G2 with a camera and performing image analysis.
- FIGS. 8A to 8C and FIGS. 9A to 9C show a glass substrate G3 according to the third embodiment of the present invention, and FIGS. 8A and 9A are top views. 8 (B) and 9 (B) are bottom views, and FIG. 8 (C) and FIG. 9 (C) are cross-sectional views.
- the mark that can distinguish the concave surface G3A and the convex surface G3B is a mark formed on at least one of the concave surface G3A or the convex surface G3B, and the mark of the concave surface G3A and the convex surface G3B It is preferable that at least one of the number, shape, and distance from the center of gravity of the marks differs from the marks.
- the number of marks on the concave surface G3A is different from the number of marks on the convex surface G3B.
- the difference in the number of marks includes the case where there is no mark on either the concave surface G3A or the convex surface G3B.
- 8A to 8C have a mark 310 on the concave surface G3A and no mark on the convex surface G3B.
- the shapes of the mark 330 on the concave surface G3A and the marks 320 on the convex surface G3B and the distances Q and P from the centers of gravity R and O are different.
- the concave surface G3A and the convex surface G3B can be discriminated by measuring the shape of the mark on the concave surface G3A and the mark on the convex surface G3B.
- at least one of the marks may be different from the shape of the other marks.
- the marks on the concave surface G3A and the convex surface G3B are previously marked. If the formation is determined, the concave surface G3A and the convex surface G3B can be discriminated by measuring the distances Q and P from the centers of gravity R and O of the mark 330 on the concave surface G3A and the mark 320 on the convex surface G3B. it can. When there are two or more marks on at least one of the concave surface G3A and the convex surface G3B, the distance to the centroid of at least one of the marks may be different from the distance to the centroid of the other marks.
- the concave surface and the convex surface of the glass substrate can be identified, so that in the step of bonding the glass substrate and the silicon-containing substrate, the convex surface of the glass substrate is identified. Since the convex surface and the substrate containing silicon are bonded together, bubbles are unlikely to enter between the glass substrate and the substrate containing silicon.
- At least one of the marks is preferably a depression.
- the depression can be formed by a laser, for example.
- the shape, size, and number of indentations are not limited. Any shape such as a circle, an ellipse, or a polygon may be used, and a character or symbol may be used.
- the depth of the depression is preferably 1 to 50 ⁇ m. If the depth of the depression is 1 ⁇ m or more, the depression is easy to detect.
- the depth of the recess is more preferably 3 ⁇ m or more, and further preferably 4 ⁇ m or more. If the depth of the recess is 50 ⁇ m or less, the glass substrate is difficult to break.
- the depth of the recess is more preferably 20 ⁇ m or less, and more preferably 10 ⁇ m or less.
- the glass substrate of one embodiment of the present invention preferably has an area of one main surface of 70 to 2000 cm 2 . If the area of the glass substrate is 70 cm 2 or more, a silicon-containing substrate including a large number of silicon elements can be disposed, and productivity is improved in the step of stacking the glass substrate and the silicon-containing substrate.
- the area of one main surface of the glass substrate is more preferably 80 cm 2 or more, further preferably 170 cm 2 or more, particularly preferably 300 cm 2 or more, and most preferably 700 cm 2 or more. If the area of one main surface of a glass substrate is 2000 cm ⁇ 2 > or less, handling of a glass substrate will become easy and the damage by contact with the board
- Area of the one main surface is more preferably 1700 cm 2 or less, still more preferably 1000 cm 2 or less, particularly preferably at 800 cm 2 or less, and most preferably 750 cm 2 or less.
- the glass substrate of one embodiment of the present invention is preferably circular. If it is circular, lamination with a substrate containing silicon is easy. In particular, lamination with a substrate containing circular silicon is easy.
- the circular shape is not limited to a perfect circle but includes a case where a dimensional difference from a perfect circle having the same diameter is 50 ⁇ m or less.
- the diameter is preferably 7 cm or more. If the diameter is 7 cm or more, a silicon-containing substrate including a large number of silicon elements can be disposed. In addition, a large number of semiconductor elements can be obtained from a stacked substrate formed by bonding a glass substrate having a diameter of 7 cm or more and a substrate containing silicon, and productivity is improved.
- the diameter is more preferably 10 cm or more, further preferably 15 cm or more, particularly preferably 20 cm or more, and most preferably 25 cm or more.
- the diameter is preferably 50 cm or less. When the diameter is 50 cm or less, the glass substrate can be easily handled, and damage due to contact with a silicon-containing substrate or a peripheral member can be suppressed.
- the diameter is more preferably 45 cm or less, further preferably 40 cm or less, and particularly preferably 35 cm or less.
- the glass substrate according to an embodiment of the present invention is not limited to a circle but may be a rectangle.
- a part of the outer periphery may be a straight line.
- more semiconductor elements can be obtained from a stacked substrate formed by bonding a substrate containing silicon to a substrate having a same area, and productivity is improved.
- the glass substrate of one embodiment of the present invention preferably has a thickness of 2.0 mm or less.
- a thickness is 2.0 mm or less, a laminated substrate obtained by bonding a glass substrate and a substrate containing silicon can be thinned.
- the thickness is more preferably 1.5 mm or less, further preferably 1.0 mm or less, and particularly preferably 0.8 mm or less.
- the thickness is preferably 0.1 mm or more. If the thickness is 0.1 mm or more, damage due to contact with a substrate containing silicon, a peripheral member, or the like can be suppressed. Moreover, the self-weight deflection of the glass substrate can be suppressed.
- the thickness is more preferably 0.2 mm or more, and further preferably 0.3 mm or more.
- the glass substrate of one embodiment of the present invention preferably has a plate thickness deviation of 15 ⁇ m or less.
- the plate thickness deviation is calculated, for example, by measuring the plate thickness with a laser displacement meter. If the plate thickness deviation is 15 ⁇ m or less, the bonding surface with the substrate containing silicon has good consistency, so that the glass substrate and the substrate containing silicon are easily bonded together.
- the plate thickness deviation is more preferably 12 ⁇ m or less, further preferably 10 ⁇ m or less, and particularly preferably 5 ⁇ m or less.
- the glass substrate of one embodiment of the present invention preferably has a Young's modulus of 65 GPa or more.
- the Young's modulus is measured by, for example, an ultrasonic pulse method. If Young's modulus is 65 GPa or more, the curvature and the crack of the glass substrate which generate
- the Young's modulus is more preferably 70 GPa or more, further preferably 75 GPa or more, and particularly preferably 80 GPa or more.
- the Young's modulus is preferably 100 GPa or less. If the Young's modulus is 100 GPa or less, the glass can be prevented from becoming brittle, and chipping during cutting and dicing of the glass substrate can be suppressed.
- the Young's modulus is more preferably 90 GPa or less, and further preferably 87 GPa or less.
- the glass substrate of one embodiment of the present invention preferably has an average coefficient of thermal expansion of 30 to 140 ( ⁇ 10 ⁇ 7 / ° C.) at 50 to 350 ° C.
- a heat treatment step is required.
- a laminated substrate obtained by bonding a substrate containing silicon and a glass substrate at a temperature of 200 ° C. to 400 ° C. is cooled to room temperature.
- a large residual strain residual deformation
- the average thermal expansion coefficient of 50 ° C. to 350 ° C. is an average heat whose temperature range for measuring the thermal expansion coefficient is 50 ° C. to 350 ° C. measured by the method defined in JIS R3102 (1995). Expansion coefficient.
- the glass substrate of one embodiment of the present invention is used as a fan-out type wafer level package, a substrate containing silicon is stacked on the glass substrate, and a resin is formed so as to be in contact with the glass substrate and the substrate containing silicon.
- the average thermal expansion coefficient at 50 ° C. to 350 ° C. is 30 to 50 ( ⁇ 10 ⁇ 7 / ° C.), the residual strain generated in the substrate containing silicon in the heat treatment step is small.
- ⁇ 10 ⁇ 7 / ° C. may be 31 to 50 ( ⁇ 10 ⁇ 7 / ° C.), 32 to 40 ( ⁇ 10 ⁇ 7 / ° C.), and 32 to 36 ( ⁇ 10 ⁇ 7 / ° C.) or 34 to 36 ( ⁇ 10 ⁇ 7 / ° C.).
- the average coefficient of thermal expansion at 50 ° C. to 350 ° C. is 50 to 80 ( ⁇ 10 ⁇ 7 / ° C.)
- the residual strain generated in the substrate containing silicon and the resin in the heat treatment step is reduced.
- the average thermal expansion coefficient at 50 ° C. to 350 ° C. may be 60 to 75 ( ⁇ 10 ⁇ 7 / ° C.) or 67 to 72 ( ⁇ 10 ⁇ 7 / ° C.).
- the average thermal expansion coefficient at 50 ° C. to 350 ° C. is 80 to 120 ( ⁇ 10 ⁇ 7 / ° C.), the residual strain generated in the resin and wiring is small.
- the average coefficient of thermal expansion at 50 ° C. to 350 ° C. may be 85 to 100 ( ⁇ 10 ⁇ 7 / ° C.), or 90 to 95 ( ⁇ 10 ⁇ 7 / ° C.).
- the fan-out type wafer level package has a high average thermal expansion coefficient with a high resin ratio. Small residual strain is generated.
- the average thermal expansion coefficient at 50 ° C. to 350 ° C. may be 120 to 135 ( ⁇ 10 ⁇ 7 / ° C.), or 125 to 130 ( ⁇ 10 ⁇ 7 / ° C.).
- a light shielding film is formed on at least one of the concave surface or the convex surface of the glass substrate.
- the light shielding film By forming the light shielding film on at least one of the concave surface or the convex surface of the glass substrate, it is easy to detect the position of the glass substrate or the laminated substrate in the inspection process of the glass substrate or the laminated substrate. The position is specified by the reflected light by irradiating the glass substrate or the laminated substrate with light. Since the glass substrate easily transmits light, forming a light-shielding film on the main surface of the glass substrate increases the reflected light and makes it easy to detect the position.
- the light shielding film preferably contains Ti.
- the glass substrate of one embodiment of the present invention preferably contains 0 to 0.1% of an alkali metal oxide in terms of a molar percentage based on the oxide.
- the alkali metal oxide is Li 2 O, Na 2 O, K 2 O, or the like. If the content of the alkali metal oxide is 0.1% or less in terms of oxide-based mole percentage, alkali ions are unlikely to diffuse into the silicon substrate in the heat treatment step of bonding the substrate containing silicon and the glass substrate.
- the content of the alkali metal oxide is more preferably 0.05% or less, more preferably 0.02% or less, particularly preferably not substantially contained, in terms of oxide-based mole percentage.
- substantially free of alkali metal oxide means that it does not contain alkali metal oxide at all, or may contain alkali metal oxide as an impurity inevitably mixed in production. .
- the glass substrate of one embodiment of the present invention preferably has a density of 2.60 g / cm 3 or less. If the density is 2.60 g / cm 3 or less, the glass substrate is lightweight. Further, the glass substrate is not easily bent due to its own weight. More preferably the density is less than 2.55 g / cm 3, further preferably 2.50 g / cm 3 or less.
- the density is preferably 2.20 g / cm 3 or more.
- the density is 2.20 g / cm 3 or more, the Vickers hardness of the glass is high and the glass surface is hardly damaged.
- the density is 2.30 g / cm 3 or more, still more preferably 2.40 g / cm 3 or more, particularly preferably 2.45 g / cm 3 or more.
- the glass substrate of one embodiment of the present invention preferably has a transmittance at a wavelength of 250 nm of 10% or more.
- the glass substrate is peeled from the laminated substrate. If the transmittance of the glass substrate at a wavelength of 250 nm is 10% or more, the ultraviolet rays applied to the resin increase, and the glass substrate is easily peeled from the laminated substrate.
- the transmittance at a wavelength of 250 nm is more preferably 15% or more, and further preferably 20% or more.
- the glass substrate of one embodiment of the present invention preferably has a transmittance at a wavelength of 300 nm of 45% or more. If the transmittance of the glass substrate at a wavelength of 300 nm is 45% or more, the ultraviolet rays applied to the resin increase, and the glass substrate is easily peeled from the laminated substrate.
- the transmittance at a wavelength of 300 nm is more preferably 50% or more, further preferably 55% or more, and particularly preferably 60% or more.
- the glass substrate of one embodiment of the present invention preferably has a transmittance at a wavelength of 350 nm of 45% or more. If the transmittance of the glass substrate at a wavelength of 350 nm is 45% or more, the ultraviolet rays applied to the resin increase, and the glass substrate is easily peeled from the laminated substrate.
- the transmittance at a wavelength of 350 nm is more preferably 50% or more, further preferably 55% or more, and particularly preferably 60% or more.
- the glass substrate of one embodiment of the present invention preferably has 10 pc / cm 2 or less of defects such as bubbles and foreign matters having a major axis of 200 ⁇ m or more. If the defect having a major axis of 200 ⁇ m or more is 10 pcs / cm 2 or less, the light irradiated in the bonding step is not blocked, and bonding is easy.
- the defect having a major axis of 200 ⁇ m or more is more preferably 2 pcs / cm 2 or less, and it is particularly preferable that there is no defect having a major axis of 200 ⁇ m or more.
- the glass substrate of one embodiment of the present invention preferably forms a laminated substrate by bonding a convex surface of a glass substrate and a substrate containing silicon.
- a laminated substrate By forming the laminated substrate in such a manner, bubbles are unlikely to enter between the glass substrate and the silicon-containing substrate in the step of bonding the glass substrate and the silicon-containing substrate. Further, the laminated substrate is not easily deformed by storing and transporting the laminated substrate so that the concave surface of the glass substrate is supported by the support member.
- the support member is not limited to a fixed type, and may be a movable type.
- the glass substrate and the laminated substrate can be transported without contaminating the surfaces of the glass substrate and the laminated substrate. Further, by supporting the concave surfaces of the glass substrate and the laminated substrate with a movable support member, it can be transported while suppressing the deformation of the glass substrate or the laminated substrate.
- the laminated substrate of one embodiment of the present invention is formed by bonding the convex surface of the glass substrate and a substrate containing silicon. Since it is formed by bonding the convex surface of the glass substrate and a substrate containing silicon, bubbles are unlikely to enter between the glass substrate and the substrate containing silicon.
- a laminated substrate according to another embodiment of the present invention is formed by bonding a curved surface made of a convex surface or a concave surface of the glass substrate and a curved surface made of a convex surface or a concave surface of a substrate containing silicon so as to follow each other.
- follow each other means that the curved surface of the glass substrate and the curved surface of the substrate containing silicon, that is, the direction of warpage is in the same direction.
- FIG. 12 is a cross-sectional view for explaining the relationship between the curved surface of the glass substrate and the curved surface of the substrate containing silicon in the manufacturing process of the laminated substrate.
- the curved surface formed of the convex surface of the glass substrate G1 and the curved surface formed of the concave surface of the substrate 10 containing silicon are bonded so as to follow each other.
- reduction in uneven adhesion between the glass substrate G1 and the substrate 10 containing silicon; improvement in bubble removal at the time of bonding; reduction in overall warpage; reduction in residual stress between layers; and in a laminated substrate after curing The interface residual stress distribution can be made uniform, and the yield and reliability are improved.
- FIG. 12B shows a form in which the glass substrate G1 and the concave surface of the substrate 10 containing silicon are bonded to each other.
- the residual stress distribution between the interfaces becomes non-uniform, and the portions having large residual stress are scattered locally, inducing separation failure, and there is a variation in reliability between chip products. Arise.
- the difference in warpage between the glass substrate G1 and the substrate 10 containing silicon that is, the gap formed in the direction orthogonal to the substrate plane direction when the glass substrate G1 and the substrate 10 containing silicon are overlaid.
- the maximum size of the part is preferably 0 to 400 ⁇ m, and more preferably 0 to 100 ⁇ m. If it is in this range, the above-mentioned effects can be achieved satisfactorily.
- the glass substrate G1 is preferably formed by a float process.
- the glass substrate molded by the float method has a center-symmetric saddle-shaped warp shape, and the direction of copying at the time of bonding compared to a glass substrate formed by a fusion method that tends to be a random warp shape such as a saddle type Tends to be uniform and contributes to quality stability.
- a glass substrate formed by the fusion method can be used favorably.
- the curved surface shape of the substrate containing silicon is predicted in advance, and the predicted curved surface shape and the curved surface shape of the glass substrate are bonded to each other. More preferably, the method includes a step. For example, in the manufacture of a fan-out type wafer level package or the like, there is a case where the direction of warpage is determined by the product as the manufacturing process flows as a hybrid of a substrate containing silicon and other materials such as resin. Many.
- the laminated substrate of one embodiment of the present invention preferably has a thickness of 0.5 to 3 mm. If thickness is 0.5 mm or more, the intensity
- the thickness is more preferably 1.0 mm or more, and further preferably 1.3 mm or more. If the thickness is 3 mm or less, it can be thinned.
- the thickness is more preferably 2.5 mm or less, and further preferably 2.0 mm or less.
- the laminated substrate of one embodiment of the present invention may have a notch in a substrate containing silicon. If the substrate containing silicon has a notch, when forming a circuit pattern on the substrate containing silicon, the position and angle of the substrate containing silicon can be specified by the notch, thereby reducing the dimensional deviation of the circuit pattern. Can be suppressed.
- the position of the notch in the substrate containing silicon can be detected by, for example, a laser.
- the notch may be detected by imaging the glass substrate with a camera and performing image analysis.
- the laminated substrate of one embodiment of the present invention has a glass substrate and silicon so that the glass substrate and the substrate containing silicon have a notch, and the notch of the glass substrate and the notch of the substrate containing silicon overlap. It is preferable that the substrate is bonded to the substrate. If such a laminated substrate is formed, it is easy to detect the position of the notch in the substrate containing silicon, and it is easy to suppress the dimensional deviation of the circuit pattern.
- a notch can be detected even when a laser is applied to a substrate containing silicon, and a notch can be detected even when applied to a glass substrate. If the notch is a notch, the loss area of the glass substrate or the silicon substrate is small, and the glass substrate and the substrate containing silicon are easily bonded to each other. In addition, since the loss area of the substrate containing silicon is small, many circuits can be formed over the substrate containing silicon. If the notch is orientation flat, the notch is easy to form and the position of the notch is easy to detect.
- the multilayer substrate of one embodiment of the present invention may be formed by bonding a concave surface of a glass substrate that constitutes one laminate substrate and a substrate containing silicon that constitutes another laminate substrate. Two laminated substrates may be bonded, three laminated substrates may be bonded, or four or more laminated substrates may be bonded.
- the laminated substrate formed in this manner is less prone to residual stress and is less likely to crack or chip.
- the concave surface of the glass substrate is preferably supported at four points by the support member. Since the concave surface of the glass substrate is supported at four points by the support member, the surface of the glass substrate or the laminated substrate is hardly contaminated by dust or the like.
- the concave surface of the glass substrate may be supported on two sides by a support member. Since the concave surface of the glass substrate is supported on two sides by the support member, it can be stably stored and transported. In addition, the surface of the multilayer substrate is not easily contaminated by dust or the like.
- the laminate of one embodiment of the present invention is characterized in that it is formed by bonding another glass substrate to the glass substrate constituting the laminate substrate.
- the laminated substrate of one embodiment of the present invention is used as, for example, a support glass for semiconductor back grinding
- the number of glass substrates constituting the laminated substrate is one, so that the thickness of the glass substrate can be adjusted. Need to be polished.
- the laminated body of one embodiment of the present invention is formed by bonding another glass substrate to the glass substrate constituting the laminated substrate, the other glass substrate can be peeled off without polishing the glass substrate.
- the thickness can be adjusted.
- the amount of deflection of a glass substrate having an arbitrary thickness is larger than the amount of deflection of a laminated substrate in which two glass substrates having a thickness half that of the glass substrate are laminated.
- FIG. 10 is a cross-sectional view of a package 500 according to an embodiment of the present invention.
- a package 500 according to an embodiment of the present invention is formed by packing two or more glass substrates, and a convex surface G5B of one glass substrate G5 of the glass substrate is a concave surface G6A of another glass substrate G6. Packed to face each other.
- FIG. 11 is a cross-sectional view of a package 600 according to an embodiment of the present invention.
- a package 600 according to an embodiment of the present invention is formed by packing two or more of the above-mentioned multilayer substrates, and a substrate 640 containing silicon that constitutes one of the multilayer substrates 610 is another multilayer substrate.
- the glass substrate G8 constituting the 620 is packed so as to face the concave surface G8A.
- the packing body according to an embodiment of the present invention is formed by packing two or more of the above-described stacked bodies, and the substrate including silicon constituting one stacked body of the above-described stacked body is another stacked body. It is packed so as to face the concave surface of the glass substrate that constitutes.
- the packaging body according to the embodiment of the present invention may have two, three, or three glass substrates, laminated substrates, or laminated bodies that form the packaging body. But you can. Since the packaging body formed in this way has the convex and concave directions of the glass substrate aligned, the distance between the glass substrate, the laminated substrate, or the laminate constituting the packaging body can be reduced. Can be reduced in size.
- a packaging body in which the orientation of the convex and concave surfaces of the glass substrate is aligned packs more laminated substrates than a packaging body of the same size in which the orientation of the convex and concave surfaces of the glass substrate is not uniform. Can do.
- the directions of the convex surface and the concave surface of the glass substrate are uniform.
- the laminated substrate can be transported while suppressing deformation of the glass substrate, the laminated substrate, or the laminated body.
- the directions of the convex surface and the concave surface of the glass substrate are aligned, the surfaces on which a film is formed on a substrate containing silicon can be aligned, and the film thickness distribution by the film formation can be easily controlled.
- the concave surface of the glass substrate is supported at four points by the support member. Since the concave surface of the glass substrate is supported at four points by the support member, the surface of the glass substrate or the laminated substrate is hardly contaminated by dust or the like.
- the package according to an embodiment of the present invention may store the package in a container. If stored in a container, the package is less likely to be contaminated by dust or the like.
- the glass substrate of one embodiment of the present invention has steps of melting, clarifying, molding, slow cooling, cutting, inspection, and marking.
- raw materials are prepared so that the glass substrate has a desired composition, the raw materials are continuously charged into a melting furnace, and preferably heated to about 1400 to 1650 ° C. to obtain molten glass.
- the glass substrate in the present invention can use SO 3 or SnO 2 as a clarifier. Further, a defoaming method using reduced pressure may be applied.
- a float method is used in which molten glass is poured over molten metal to form a glass ribbon.
- the glass ribbon is slowly cooled.
- the glass substrate of one embodiment of the present invention is obtained by cutting into a predetermined shape and size.
- the inspection process for example, whether a main surface of the glass substrate is concave or convex is identified by a laser displacement meter.
- a mark is formed on at least one of the concave surface and the convex surface of the glass substrate.
- the depression is formed by, for example, a laser.
- a recess having a desired shape is formed.
- Symbols and characters may be formed.
- the notches and orientation flats are formed, for example, by forming a cut line with a cutter or a laser and cleaving it.
- the mark formed on the glass substrate is detected by, for example, imaging the glass substrate with a camera and performing image analysis, and the concave surface and the convex surface of the glass substrate are identified.
- the molten glass may be formed into a plate by applying a fusion method, a roll-out method, a press molding method, or the like in the forming step.
- a platinum crucible When manufacturing the glass substrate of one embodiment of the present invention, a platinum crucible may be used.
- a platinum crucible in the melting step, raw materials are prepared so that the composition of the obtained glass substrate is obtained, the platinum crucible containing the raw materials is put into an electric furnace, and preferably heated to about 1450 to 1650 ° C. A platinum stirrer is inserted and stirred for 1 to 3 hours to obtain molten glass.
- SO 3 or SnO 2 can be used as a clarifier. Further, a defoaming method using reduced pressure may be applied. Halogens such as Cl and F are preferably used as the clarifying agent in the defoaming method using reduced pressure.
- the molten glass is poured into a carbon plate, for example, to form a plate.
- the slow cooling step the plate-like glass is gradually cooled to room temperature, and after cutting, a glass substrate is obtained.
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Abstract
Description
本発明の積層基板の製造方法は、上記ガラス基板の凸面または凹面からなる曲面と、シリコンを含む基板の凸面または凹面からなる曲面とを、互いの曲面が倣うように貼り合わせる工程を有することを特徴とする。
本発明の積層体は、上記積層基板を構成するガラス基板に他のガラス基板を貼り合わせることにより形成されることを特徴とする。
ガラス原料を加熱して溶融ガラスを得る溶解工程と、
前記溶融ガラスを板状にしてガラスリボンを得る成形工程と、
前記ガラスリボンを徐冷する徐冷工程と、
前記ガラスリボンを切断してガラス基板を得る切断工程と、
前記ガラス基板の凹面と凸面とを判別する検査工程と、
前記凹面上および前記凸面上の少なくとも一方に印を付ける工程と、を有することにより上記ガラス基板を得ることを特徴とする。
樹脂20は、例えば、200~400℃の温度に耐えられるものである。
50℃~350℃での平均熱膨張係数は31~50(×10-7/℃)であってもよく、32~40(×10-7/℃)であってもよく、32~36(×10-7/℃)であってもよく、34~36(×10-7/℃)であってもよい。
50℃~350℃での平均熱膨張係数は60~75(×10-7/℃)であってもよく、67~72(×10-7/℃)であってもよい。
50℃~350℃での平均熱膨張係数は120~135(×10-7/℃)であってもよく、125~130(×10-7/℃)であってもよい。
20 樹脂
30 積層基板
G1 ガラス基板
Claims (22)
- シリコンを含む基板と積層されることにより積層基板を形成させるためのガラス基板であって、前記ガラス基板が凹面と凸面とを有し、前記凹面と前記凸面とを識別できる印を有するガラス基板。
- 前記凹面と前記凸面とを識別できる印は、前記凹面に形成され、互いに形状が異なる2つの印と、前記凸面に形成され、前記凹面の2つの印それぞれと対向する位置に対応する前記凹面の印と同一形状である2つの印とを含み、
前記凸面の2つの印同士を前記凸面上で最短となるように結んだ線が前記凸面上の重心を通らない請求項1に記載のガラス基板。 - 前記凹面と前記凸面とを識別できる印は、前記凹面に形成される、前記凹面上の重心からの距離が互いに異なる2つの印と、前記凸面に形成される、前記凹面の2つの印それぞれと対向する位置に、対応する前記凹面の印と同一形状である2つの印とを含み、
前記凸面の2つの印同士を前記凸面上で最短となるように結んだ線が前記凸面上の重心を通らない請求項1に記載のガラス基板。 - 前記凹面の印と前記凸面の印とが貫通孔である請求項1~3のいずれか一項に記載のガラス基板。
- 前記凹面と前記凸面とを識別できる印は、前記凹面および前記凸面の少なくとも一方に形成される印であり、
前記凹面の印と前記凸面の印は、互いの印の、数、形状、および重心からの距離のうち少なくとも一つが異なる請求項1に記載のガラス基板。 - 前記印は、前記ガラス基板の端面の切欠きである請求項1~5のいずれか一項に記載のガラス基板。
- 少なくとも一の主表面の面積が70~2000cm2である請求項1~6のいずれか一項に記載のガラス基板。
- 少なくとも一の主表面の形状が円形である請求項1~7のいずれか一項に記載のガラス基板。
- ヤング率が65GPa以上である請求項1~8のいずれか一項に記載のガラス基板。
- アルカリ金属酸化物を酸化物基準のモル百分率表示で0~0.1%含む請求項1~9のいずれか一項に記載のガラス基板。
- 板厚偏差が15μm以下である請求項1~10のいずれか一項に記載のガラス基板。
- 前記凹面または前記凸面の少なくとも一方に遮光膜を有する請求項1~11のいずれか一項に記載のガラス基板。
- 請求項1~12のいずれか一項に記載のガラス基板の凸面とシリコンを含む基板とを貼り合わせることにより形成される積層基板。
- 請求項1~12のいずれか一項に記載のガラス基板の凸面または凹面からなる曲面と、シリコンを含む基板の凸面または凹面からなる曲面とが、互いに倣うように貼り合わされてなる積層基板。
- 請求項1~12のいずれか一項に記載のガラス基板の凸面または凹面からなる曲面と、シリコンを含む基板の凸面または凹面からなる曲面とを、互いの曲面が倣うように貼り合わせる工程を有する積層基板の製造方法。
- 前記シリコンを含む基板の曲面の形状を予め予測し、予測された前記曲面の形状と、前記ガラス基板の曲面の形状とが、互いに倣うように貼り合わせる工程を有する請求項15に記載の積層基板の製造方法。
- 請求項13または14に記載の積層基板を構成するガラス基板に他のガラス基板が貼り合わされてなる積層体。
- 請求項1~12のいずれか一項に記載のガラス基板が2枚以上梱包されて形成され、前記ガラス基板の一のガラス基板の凸面が、他の一のガラス基板の凹面と対向するように梱包される梱包体。
- 請求項13または14に記載の積層基板が2枚以上梱包されて形成され、前記積層基板の一の積層基板を構成するシリコンを含む基板が、他の一の積層基板を構成するガラス基板の凹面と対向するように梱包される梱包体。
- 請求項17に記載の積層体が2枚以上梱包されて形成され、前記積層体の一の積層体を構成するシリコンを含む基板が、他の一の積層体を構成するガラス基板の凹面と対向するように梱包される梱包体。
- 前記ガラス基板の凹面が支持部材により4点で支持される請求項18~20のいずれか一項に記載の梱包体。
- シリコンを含む基板と積層されることにより積層基板を形成させるためのガラス基板の製造方法であって、
ガラス原料を加熱して溶融ガラスを得る溶解工程と、
前記溶融ガラスを板状にしてガラスリボンを得る成形工程と、
前記ガラスリボンを徐冷する徐冷工程と、
前記ガラスリボンを切断してガラス基板を得る切断工程と、
前記ガラス基板の凹面と凸面とを判別する検査工程と、
前記凹面および前記凸面の少なくとも一方に印を付ける工程と、
を有することにより請求項1~12のいずれか一項に記載のガラス基板を得る、ガラス基板の製造方法。
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KR1020187002133A KR20180033193A (ko) | 2015-07-24 | 2016-07-19 | 유리 기판, 적층 기판, 적층 기판의 제조 방법, 적층체, 곤포체, 및 유리 기판의 제조 방법 |
JP2017530800A JP6645502B2 (ja) | 2015-07-24 | 2016-07-19 | ガラス基板、積層基板、積層基板の製造方法、積層体、梱包体、およびガラス基板の製造方法 |
CN201680043220.XA CN107848878B (zh) | 2015-07-24 | 2016-07-19 | 玻璃基板、层叠基板、层叠基板的制造方法、层叠体、捆包体以及玻璃基板的制造方法 |
US15/877,509 US11133215B2 (en) | 2015-07-24 | 2018-01-23 | Glass substrate, laminated substrate, laminated substrate manufacturing method, laminate, package, and glass substrate manufacturing method |
US17/398,107 US20210366760A1 (en) | 2015-07-24 | 2021-08-10 | Glass substrate, laminated substrate, laminated substrate manufacturing method, laminate, package, and glass substrate manufacturing method |
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TWI694001B (zh) | 2020-05-21 |
CN113307471A (zh) | 2021-08-27 |
JPWO2017018275A1 (ja) | 2018-06-21 |
CN107848878B (zh) | 2021-06-29 |
US20210366760A1 (en) | 2021-11-25 |
KR20180033193A (ko) | 2018-04-02 |
US20180151408A1 (en) | 2018-05-31 |
US11133215B2 (en) | 2021-09-28 |
CN107848878A (zh) | 2018-03-27 |
JP6645502B2 (ja) | 2020-02-14 |
TW201707969A (zh) | 2017-03-01 |
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