WO2008025764A1 - Einrichtung zum benetzen der bumps eines halbleiterchips mit einer flüssigen substanz - Google Patents
Einrichtung zum benetzen der bumps eines halbleiterchips mit einer flüssigen substanz Download PDFInfo
- Publication number
- WO2008025764A1 WO2008025764A1 PCT/EP2007/058916 EP2007058916W WO2008025764A1 WO 2008025764 A1 WO2008025764 A1 WO 2008025764A1 EP 2007058916 W EP2007058916 W EP 2007058916W WO 2008025764 A1 WO2008025764 A1 WO 2008025764A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cavity
- bumps
- semiconductor chip
- wetting
- steel sheet
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/3489—Composition of fluxes; Methods of application thereof; Other methods of activating the contact surfaces
-
- 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
-
- 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
- H01L21/6715—Apparatus for applying a liquid, a resin, an ink or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/482—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of lead-in layers inseparably applied to the semiconductor body
- H01L23/485—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of lead-in layers inseparably applied to the semiconductor body consisting of layered constructions comprising conductive layers and insulating layers, e.g. planar contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies
- H01L24/741—Apparatus for manufacturing means for bonding, e.g. connectors
- H01L24/742—Apparatus for manufacturing bump connectors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/11—Manufacturing methods
- H01L2224/118—Post-treatment of the bump connector
- H01L2224/1182—Applying permanent coating, e.g. in-situ coating
- H01L2224/11822—Applying permanent coating, e.g. in-situ coating by dipping, e.g. in a solder bath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/11—Manufacturing methods
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01005—Boron [B]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01015—Phosphorus [P]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01033—Arsenic [As]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10621—Components characterised by their electrical contacts
- H05K2201/10674—Flip chip
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0104—Tools for processing; Objects used during processing for patterning or coating
- H05K2203/0113—Female die used for patterning or transferring, e.g. temporary substrate having recessed pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3431—Leadless components
- H05K3/3436—Leadless components having an array of bottom contacts, e.g. pad grid array or ball grid array components
Definitions
- the invention relates to a device for wetting the bumps of a semiconductor chip with a liquid substance, such as a Lötmannstoff.
- a technology is widely used, in which the semiconductor chips are first attached by means of a so-called Die Bonders on a substrate. Subsequently, the electrical pads of the semiconductor chip are wired to the substrate by means of a so-called wire bonder.
- Another technology is the flip-chip technology, in which the connection surfaces of the semiconductor chip are provided with a so-called bump.
- the semiconductor chip When mounting on a substrate, the semiconductor chip is turned, which is referred to in the jargon as "flip.” Then, the bumps of the semiconductor chip are wetted with a soldering flux For this purpose, the bumps of the semiconductor chip are immersed, for example, in a soldering flux-filled cavity Semiconductor chip placed on the substrate, wherein the bumps contact electrical pads of the substrate., Then the semiconductor chip and the substrate are soldered in an oven.
- a device for wetting the bumps of a semiconductor chip with a Lötmann für a is known from CH 694634.
- This device includes a base plate having at least one cavity filled with solder flux.
- the height of the solder flux layer in the cavity is usually in a range of 0 to 200 micrometers.
- a steel plate is used as the base plate, which is milled from the solid and machined to obtain a flat surface with the required fineness. Subsequently, the cavity is formed by milling.
- the preparation of the base plate and the cavity is very expensive and correspondingly expensive.
- the invention has for its object to develop such a device that is easier and cheaper to produce.
- the base plate with the milled cavity by a system consisting of a support plate and a (replaceable) steel sheet is replaced with a cavity.
- a steel sheet is z. B. a standard available sheet, the Surface quality according to DIN EN 10130 has the surface type "best surface” and is executed in the surface finish "particularly smooth”. The surface type "best surface” is marked in this DIN standard with the letter "B", the surface version "particularly smooth” with the letter "b".
- DC 04 denotes a steel grade, satisfies the requirements of fineness or roughness of the surface, and the cavity is preferably made by etching Their surface then appears to the human eye as a matte surface compared to the rest of the surface of the steel sheet, but the cavity can also be made by another material-removing process, such as milling or grinding.
- 1, 2 shows a plan view or side view of a device for wetting the bumps of a semiconductor chip according to CH 694634
- FIG. 3 shows a base plate of this device with a cavity
- FIG. 4 shows a carrier plate
- FIG. 5 shows a steel plate with two cavities.
- the device 1 shows in plan view and in side view a known from CH 694634 device 1 for wetting the bumps of a semiconductor chip with a liquid substance such as a Lötmann für karasis, electrically conductive epoxy or solder paste.
- the device 1 consists of an elongated base plate 2, in which at least one cavity 3 is incorporated, and a downwardly open container 4 for receiving the liquid substance. In operation, the container 4 slides at a predetermined speed on the base plate 2 between two positions Pi and P 2 back and forth, which are located on the left and right of the cavities 3.
- the drive of the container 4 is z.
- the carriage consists of a lower and an upper carriage part 8a and 8b.
- the container 4 has two bolts 10 which are mounted in a circular recess in the upper slide part 8b.
- the upper slide member 8b is pulled by a spring against the lower slide member 8a toward the base plate 2, so that the lower edge of the container 4 is pressed against the base plate 2 with a predetermined force.
- the carriage 8 itself is reciprocated by means of a not shown, for example pneumatic drive along a parallel to the base plate extending guide rail 9, wherein the sliding on the base plate 2 container 4 is moved.
- the cavity 3 shows the cavity 3 filled with a soldering flux 12 as a liquid substance.
- the thickness d of the flux layer is less than the depth t of the cavity 3 by about 20 to 30 ⁇ m, but solder flux 12 along the circumference of the cavity 3 extends to the upper edge 13 of the cavity 3.
- the cavity 3 is homogeneously filled with flux 12, wherein the viscosity of the flux 12 in a wide range of at least 8 to 45 Ns / m (8000 to 45000 cp) is irrelevant. When immersing a bumped semiconductor chip in the cavity 3, therefore, all bumps are wetted equally with soldering flux.
- the base plate 2 is replaced by a carrier plate 14 and a steel plate 15 which can be fastened interchangeably on the carrier plate 14 with a single or multiple cavities 3.
- a carrier plate 14 On the rear side of the carrier plate 14 at least one magnet 16, preferably a plurality of magnets 16 is arranged.
- the magnets 16 are preferably housed in recesses 17 in the back of the support plate 14. If the steel sheet 15 is placed on the front of the support plate 14, then it is pulled by the force of the magnets 16 against the support plate 14.
- the steel sheet 15 facing the front of the support plate 14 is a flat surface, i. E. an area without depressions or elevations. Such a surface is easier to manufacture than a surface bounded by an elevation.
- additional parts 18 are secured to the support plate 14 which project beyond the edge of the front side. These parts 18 are, for example, attached to the opposite end faces of the support plate 14 U-shaped body.
- the at least one cavity 3 of the steel sheet 15 is preferably produced by etching.
- the resulting surface of the cavity appears to the human eye as a matte surface, while the not machined in the production of the cavity surface of the front of the steel sheet 15 appears as a smooth surface.
- the at least one cavity 3 can also be produced by another material-removing method, for example milling or grinding. A surface made by milling or grinding is perceived as a shiny surface. If the surface is made by milling, it also has traces left by the milling head during manufacture.
- the support plate 14 To provide a high degree of process accuracy, only the support plate 14 must be made with the appropriate accuracy.
- the designed as a flat surface front of the support plate 14 is easier to produce than a base plate with a cavity.
- the support plate 14 is not subject to wear. It can be permanently installed in the assembly machine become.
- the steel sheet 15 is subject to wear during operation.
- the replacement of the steel sheet 15 is much cheaper than the replacement of a base plate with milled cavities.
- the steel sheet 15 can also be easily and quickly replaced if the depth of the cavity 3 must be adapted to changing production conditions.
- Such a system consisting of the support plate 14 and the exchangeable steel sheets 15 can be used for example in a device for wetting the bumps of a semiconductor chip, which is otherwise constructed according to the teaching of CH 694634 or WO 01/35709. However, the use is not limited to such a construction.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Wire Bonding (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009526081A JP2010502028A (ja) | 2006-09-01 | 2007-08-28 | 半導体チップのバンプを液状物質により溶着するための装置 |
EP07819979A EP2059945A1 (de) | 2006-09-01 | 2007-08-28 | Einrichtung zum benetzen der bumps eines halbleiterchips mit einer flüssigen substanz |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1426/06 | 2006-09-01 | ||
CH14262006 | 2006-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008025764A1 true WO2008025764A1 (de) | 2008-03-06 |
Family
ID=38608784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/058916 WO2008025764A1 (de) | 2006-09-01 | 2007-08-28 | Einrichtung zum benetzen der bumps eines halbleiterchips mit einer flüssigen substanz |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2059945A1 (de) |
JP (1) | JP2010502028A (de) |
KR (1) | KR20090056996A (de) |
CN (1) | CN101512723A (de) |
TW (1) | TW200820357A (de) |
WO (1) | WO2008025764A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015113290A1 (de) * | 2015-08-12 | 2017-02-16 | Asm Assembly Systems Gmbh & Co. Kg | DIP-Platte und Verfahren zum Dippen von Kontaktanschlüssen elektronischer Bauelemente |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202277943U (zh) * | 2011-10-31 | 2012-06-20 | 华为终端有限公司 | 芯片凸块的蘸涂送料装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5950908A (en) * | 1995-12-25 | 1999-09-14 | Mitsubishi Denki Kabushiki Kaisha | Solder supplying method, solder supplying apparatus and soldering method |
US6025258A (en) * | 1994-01-20 | 2000-02-15 | Fujitsu Limited | Method for fabricating solder bumps by forming solder balls with a solder ball forming member |
US6293317B1 (en) * | 1999-04-12 | 2001-09-25 | Esec Trading Sa | Method and device for the application of a liquid substance |
-
2007
- 2007-08-28 KR KR1020097004015A patent/KR20090056996A/ko not_active Application Discontinuation
- 2007-08-28 WO PCT/EP2007/058916 patent/WO2008025764A1/de active Application Filing
- 2007-08-28 CN CNA2007800325529A patent/CN101512723A/zh active Pending
- 2007-08-28 JP JP2009526081A patent/JP2010502028A/ja active Pending
- 2007-08-28 EP EP07819979A patent/EP2059945A1/de not_active Withdrawn
- 2007-08-29 TW TW096132025A patent/TW200820357A/zh unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6025258A (en) * | 1994-01-20 | 2000-02-15 | Fujitsu Limited | Method for fabricating solder bumps by forming solder balls with a solder ball forming member |
US5950908A (en) * | 1995-12-25 | 1999-09-14 | Mitsubishi Denki Kabushiki Kaisha | Solder supplying method, solder supplying apparatus and soldering method |
US6293317B1 (en) * | 1999-04-12 | 2001-09-25 | Esec Trading Sa | Method and device for the application of a liquid substance |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015113290A1 (de) * | 2015-08-12 | 2017-02-16 | Asm Assembly Systems Gmbh & Co. Kg | DIP-Platte und Verfahren zum Dippen von Kontaktanschlüssen elektronischer Bauelemente |
DE102015113290B4 (de) | 2015-08-12 | 2022-01-27 | Asm Assembly Systems Gmbh & Co. Kg | Dip-Platte und Verfahren zum Dippen von Kontaktanschlüssen elektronischer Bauelemente |
Also Published As
Publication number | Publication date |
---|---|
EP2059945A1 (de) | 2009-05-20 |
JP2010502028A (ja) | 2010-01-21 |
KR20090056996A (ko) | 2009-06-03 |
TW200820357A (en) | 2008-05-01 |
CN101512723A (zh) | 2009-08-19 |
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