WO2002073686A1 - Procede de realisation d'un dispositif a semi-conducteur - Google Patents
Procede de realisation d'un dispositif a semi-conducteur Download PDFInfo
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- WO2002073686A1 WO2002073686A1 PCT/JP2002/002255 JP0202255W WO02073686A1 WO 2002073686 A1 WO2002073686 A1 WO 2002073686A1 JP 0202255 W JP0202255 W JP 0202255W WO 02073686 A1 WO02073686 A1 WO 02073686A1
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- wiring pattern
- semiconductor chip
- circuit board
- resin layer
- underfill resin
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
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- H01L21/563—Encapsulation of active face of flip-chip device, e.g. underfilling or underencapsulation of flip-chip, encapsulation preform on chip or mounting substrate
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Definitions
- the present invention relates to a method for manufacturing a semiconductor device, and more particularly, to a method for manufacturing a semiconductor device suitable for connecting a connection pad of a flip-chip type semiconductor chip to a circuit board.
- Japanese Patent Application Laid-Open No. 10-50758 only describes the outline of an apparatus used for the ultrasonic bonding method, and injects an underfill resin into a gap between a connected circuit board and a semiconductor chip. There is no description of the process to be performed. Also, Japanese Patent Application Laid-Open No. 2000-195905 only describes the content related to cleaning of a tool head of an ultrasonic bonding apparatus, but does not describe injection of an underfill resin.
- a device called a dispenser in order to inject the underfill resin between the semiconductor chip and the circuit board after joining them, a device called a dispenser must be used.
- a dispenser when using a dispenser, it is difficult to control an appropriate resin injection amount, and it is difficult to inject an appropriate amount of resin continuously.
- both the semiconductor chip and the circuit board are sealed in an appropriate state with the underfill resin. It is difficult. In that case, it is difficult to obtain a good fillet shape that gently hangs from the outer edge of the semiconductor chip.
- an object of the present invention is to achieve a good fillet shape while easily and properly sealing a gap between a semiconductor chip and a circuit board with an underfill resin while using an ultrasonic bonding method. It is another object of the present invention to provide a method of manufacturing a semiconductor device capable of appropriately absorbing a stress acting between a semiconductor chip and a circuit board and obtaining a highly reliable flip-chip package having good conduction performance. Disclosure of the invention
- a method of manufacturing a semiconductor device includes a first step of forming an underfill resin layer on a circuit board on which a wiring pattern is formed so as to cover at least a part of the wiring pattern.
- a semiconductor chip having a connection pad and a protruding electrode formed on the connection pad is opposed to the wiring pattern of the circuit board, and the protruding electrode is pressed against the wiring pattern through the underfill resin layer.
- an underfill resin layer is formed. Ultrasonic bonding can be performed before curing the underfill resin layer.
- the package can be easily and appropriately sealed with an underfill resin interposed therebetween.
- Underfill resin is usually mixed with insulating particles called filler to make the coefficient of linear expansion between the semiconductor chip and the resin close to each other.
- filler insulating particles
- ultrasonic vibration is applied to the semiconductor chip while pressing the protruding electrode from above the underfill resin layer onto the wiring pattern, so that the ultrasonic vibration causes the filler in the underfill resin layer to protrude. While extruding from between the electrode and the wiring pattern, both can be melted and bonded.
- the ultrasonic vibration is transmitted to each part of the gel resin, so that the portion protruding from the outer edge of the semiconductor chip naturally flows toward the circuit board. A good fillet shape that hangs down can be obtained.
- the predetermined treatment in the third step is heat treatment, so that the resin end protruding from the outer edge of the semiconductor chip is cured while shrinking. As a result, a good fillet shape can be obtained.
- the underfill resin layer is formed on the wiring pattern in advance and then the protruding electrode and the wiring pattern are joined together, both are mechanically and electrically coupled with good conduction performance. be able to. Also, the stress acting between the semiconductor chip and the circuit board can be properly absorbed, and a highly reliable flip-chip package having good conduction performance can be obtained.
- a gel resin having both insulating properties and thermosetting properties is applied as an underfill resin layer on the wiring pattern, and in the third step, at a predetermined temperature (for example, the gel resin is cured by a heat treatment of 140 ° C. ( ⁇ 160 ° C.).
- gel resin for example, “CV 518” (product number) manufactured by Matsushita Electric Works, Ltd. can be mentioned.
- a dispense method or a printing method can be used.
- resin is applied before the second step (initial bonding) in a semiconductor assembly process using an ultrasonic bonding method, so that precise resin application processing is not required and the operation is simplified.
- the printing method it is not necessary to separately use a device such as a dispenser. For this reason, it is possible to eliminate the problem that the dispensing amount is not appropriate and a good sealing state cannot be obtained.
- the present invention by using both the dispense method and the printing method, it becomes possible to simplify the resin sealing step by the ultrasonic bonding method, and it is possible to eliminate the step defect.
- a resin film having an insulating property and a thermosetting property is attached as an underfill resin layer on the wiring pattern, and in the third step, a predetermined temperature (for example, The resin film is cured by a heat treatment of 140 to 160 ° C).
- the film-like resin examples include silicon dioxide (silica) and / or aluminum oxide having a thermal expansion coefficient close to that of a semiconductor chip.
- An underfill resin film in which particles such as (alumina) are mixed can be used.
- FIG. 1 is a flowchart showing a method for manufacturing a semiconductor device according to Embodiment 1 of the present invention.
- FIGS. 3A to 3C are plan views showing the application method of the gel resin by the dispense method, and show one-point, four-point and five-point application methods, respectively.
- 4A to 4C are side views showing shapes of the protruding electrodes usable in the present invention, each showing a different leveling shape.
- 5A to 5C are side views showing the steps of coupling the protruding electrode and the wiring pattern according to the first embodiment, showing different stages.
- 6A to 6F are side views showing step by step the resin coating process by the printing method.
- FIG. 7 is a flowchart showing a method for manufacturing a semiconductor device according to Embodiment 2 of the present invention.
- FIGS. 108 to 100C are side views showing the steps of coupling the protruding electrodes and the wiring patterns according to the second embodiment, and showing different stages.
- FIG. 1 is a flowchart showing a method for manufacturing a semiconductor device according to this embodiment
- FIG. 2 to 2D are side views showing the respective steps corresponding to FIG. 1
- FIGS. 3A to 3C are plan views showing the dispensing method for applying the gel resin
- FIG. 4A. 4 to 4C are side views showing the shapes of the protruding electrodes that can be used in the present embodiment.
- Figures 2A to 2D In the figures and FIGS. 4A to 4C, two or one of the many protruding electrodes are shown.
- the ultrasonic bonding method is started in step S1, and in step S2, a resin is applied on the wiring pattern (conductive wiring) 12 of the circuit board 10 by a dispense method.
- An underfill resin layer that is, a gel resin 16 is applied using a syringe 14 (FIG. 2A).
- Fig. 3A one point in the center of the circuit board is applied to the center, and as shown in Fig. 3B, four points in the center of the circuit board are applied. As shown in FIG. 3C, it can be applied to each of the five points at the center of the circuit board.
- the resin coating syringe 14 filled with the gel resin 16 is controlled by pneumatic pressure, so that not only the above one-point to five-point coating but also many more multi-point coatings can be adopted.
- any one of the coating methods can be arbitrarily selected.
- step S3 the protruding electrodes 24 on the connection pads 22 of the semiconductor chip 20 mounted on the ultrasonic bonder head 18 (see FIGS. 4A to 4C) are connected to the wiring pattern 1 2 (Fig. 2B).
- connection pads 22 made of aluminum are formed on the lower surface of the semiconductor chip 20, and each of the connection pads 22 is electrically and mechanically provided with a protruding electrode 24. Are combined.
- the protruding electrode 24 has, for example, a shape without leveling as shown in FIG. 4A, a shape with repelling at a relatively low load as shown in FIG. As shown in Fig. 4C, it is possible to use one that is repelled with a relatively high load.
- the type shown in Fig. 4C is an electrode shape usually used for ACF connection, etc., and the tip of the protruding electrode 24 has a flat shape compared to other types in order to save area. .
- the protruding electrodes 24 of each shape are configured as stud bumps made of gold (Au) wire so that they can be easily crushed and deformed by the initial load during ultrasonic bonding.
- the tip shown in FIG. 4B is used because the tip of the protruding electrode 24 can simultaneously contact the wiring pattern 12 with the initial load during ultrasonic bonding.
- the ultrasonic bonder head 18 presses the protruding electrodes 24 of the semiconductor chip 20 against the wiring pattern 12 of the circuit board 10 at a predetermined pressure, and presses the ultrasonic electrode from the ultrasonic bonder head 18. Ultrasonic vibration is applied to the semiconductor chip 20 (Fig. 2C).
- the protruding electrode 24 slides in a pressurized state with respect to the wiring pattern 12 due to the ultrasonic vibration in the direction indicated by the arrow 26, so that the protruding electrode 24 and the wiring pattern 12 It is mechanically and electrically coupled (Fig. 2D).
- FIGS. 5A to 5C show a state in which the protruding electrode 24 and the wiring pattern 12 are combined.
- the protruding electrode 24 is pressed against the wiring pattern 12 from above the gel resin 16, penetrates the gel resin 16, and has the tip of the protruding electrode 24. Abut on the wiring pattern 12.
- step S4 the combined semiconductor chip 20 and circuit board 10 are housed in a predetermined chamber, for example, for 110 minutes at a temperature of 140 to 160 ° C.
- the gel resin 16 is cured by performing heat treatment (thermal curing) for about 130 minutes.
- step S5 an inspection is performed on the semiconductor chip 20 and the circuit board 10 that have been packaged by the curing of the gel resin 16, such as conduction performance. As a result, if it is determined that the package is good, the package is regarded as a non-defective product and the processing is terminated (step S6). On the other hand, if it is determined to be defective, the package will be collected as a defective product.
- the gel-like resin 16 is applied on the wiring pattern 12 in advance, and then, while the protruding electrode 24 and the wiring pattern 12 are bonded, both the protruding electrode 24 and the circuit board 12 are connected. Can be mechanically and electrically coupled with good conduction performance.
- the stress acting between the semiconductor chip 20 and the circuit board 10 can be properly absorbed, and a highly reliable flip-chip package having good conduction performance can be obtained.
- the dispensing method is used for forming the underfill resin layer before the ultrasonic bonding.
- the present invention is not limited to this, and a printing method may be used.
- FIG. 6A to FIG. 6F are diagrams showing stepwise the application process of the gel resin 16 by the printing method.
- a circuit board 10 is prepared, and as shown in Fig. 6B, the wiring pattern 12 is covered with a printing screen 34, and as shown in Fig. 6C.
- a gel-like resin 16 is laid on one end of the printing screen 34.
- a gel-like resin 16 having a predetermined thickness is formed at a predetermined position of the wiring pattern 12.
- the control air pressure of the resin coating syringe 14 does not change due to the amount of resin remaining in the syringe, and the resin coating amount does not become unstable. It is possible to reliably control the amount of application. This makes it easier to control resin application during mass production.
- FIG. 7 is a flowchart showing the method of manufacturing a semiconductor device according to the present embodiment.
- FIGS. 8F and 9A to 9D are side views showing respective steps corresponding to FIG. 7, and FIGS. 10A to 10C are diagrams for joining the protruding electrodes to the wiring pattern.
- the ultrasonic bonding method is started (step S11), and the circuit board 10 is prepared (Fig. 8A).
- an underfill resin layer that is, an underfill resin film 42, is attached onto the wiring pattern 12 of the circuit board 10 (FIG. 8B).
- the underfill resin film 42 is composed of a separation section 44 and an adhesive layer 46 for improving the handleability. Therefore, first, the adhesive layer 46 of the underfill resin film 42 is attached so as to cover at least a part of the wiring pattern 12 on the circuit board 10, and then the separator portion 44 is removed (see FIG. 8C). As a result, the adhesive layer 46 remains on the wiring pattern 12 of the circuit board 10.
- the thickness of the adhesive layer 46 on the wiring pattern 12 can be appropriately changed according to the thickness of the underfill resin film 42 to be used.
- the process becomes simpler than the method of applying the coating.
- a predetermined load is applied to the adhesive layer 46 by the head section 48 of the film temporary bonding apparatus as shown in FIGS. 8D and 8E. Then, the adhesive layer 46 is adapted to the flat shape on the wiring pattern 12.
- a heat treatment is performed at a temperature of 100 ° C. for about 10 seconds, and the adhesive layer 46 is once melted and hardened to a predetermined hardness (temporarily). Curing treatment).
- step S13 ultrasonic bonding is performed. That is, the semiconductor chip 20 is opposed to the adhesive layer 46 on the wiring pattern 12 by the ultrasonic bonder head 18 (FIG. 9A).
- ultrasonic vibration is applied to the semiconductor chip 20 from the ultrasonic bonder head 18 while pressing the protruding electrodes 24 of the semiconductor chip 20 onto the wiring pattern 12 at a predetermined pressure (FIG. 9B). ).
- FIGS. 10A to 10C show a state in which the protruding electrode 24 and the wiring pattern 12 are combined. That is, as shown in FIG. 10A, the protruding electrode 24 is pressed against the wiring pattern 12 from above the adhesive layer 46 of the underfill resin film 42 to penetrate the adhesive layer 46 and The tip of the electrode 24 is brought into contact with the wiring pattern 12.
- step S14 a heat treatment (thermal curing) is performed at a temperature of, for example, 140 ° C. to 160 ° C.
- step S15 an inspection for checking necessary items such as continuity performance is performed, and if it is determined to be good, the process is terminated (step S16). If it is determined to be bad, the package is removed. Collect as defective.
- an underfill resin layer can be formed with the gel resin 16 or the underfill resin film 42, and ultrasonic bonding can be performed before the curing. Therefore, the package can be easily and appropriately sealed in the gap between the semiconductor chip 20 and the circuit board 10 with the use of the underfill resin while using the ultrasonic bonding method.
- ultrasonic vibration is applied to the semiconductor chip 20 while pressing the protruding electrode 24 onto the wiring pattern 12 from above the underfill resin layer, so that the ultrasonic vibration causes the filler 32 in the underfill resin layer to protrude.
- both While reliably extruding from between the electrode 24 and the wiring pattern 12, both can be melted and bonded. For this reason, both can be joined with good conduction performance regardless of the joining process after the formation of the underfill resin layer on the wiring pattern 12. Thereby, the stress acting between the semiconductor chip 20 and the circuit board 10 can be properly absorbed, and a highly reliable flip-chip package having good conduction performance can be obtained.
- the protruding electrode 24 is formed as a stud bump made of a gold wire, and the connection distance with the wiring pattern 12 is extremely short. For this reason, for example, compared to a case where a semiconductor chip and a wiring pattern are connected by wire bonding,
- the gap between the semiconductor chip and the circuit board is easily and properly sealed with the underfill resin while using the ultrasonic bonding method.
- a good fillet shape can be realized, the stress acting between the semiconductor chip and the circuit board can be properly absorbed, and a highly reliable flip chip package having good conduction performance can be obtained.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02702876A EP1369911A4 (en) | 2001-03-12 | 2002-03-11 | METHOD FOR PRODUCING A SEMICONDUCTOR COMPONENT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-68376 | 2001-03-12 | ||
JP2001068376A JP2002270642A (ja) | 2001-03-12 | 2001-03-12 | 半導体装置の製造方法 |
Publications (1)
Publication Number | Publication Date |
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WO2002073686A1 true WO2002073686A1 (fr) | 2002-09-19 |
Family
ID=18926576
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PCT/JP2002/002255 WO2002073686A1 (fr) | 2001-03-12 | 2002-03-11 | Procede de realisation d'un dispositif a semi-conducteur |
Country Status (5)
Country | Link |
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US (1) | US20030139004A1 (ja) |
EP (1) | EP1369911A4 (ja) |
JP (1) | JP2002270642A (ja) |
CN (1) | CN1462474A (ja) |
WO (1) | WO2002073686A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8129220B2 (en) | 2009-08-24 | 2012-03-06 | Hong Kong Polytechnic University | Method and system for bonding electrical devices using an electrically conductive adhesive |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4070658B2 (ja) | 2003-04-17 | 2008-04-02 | 三洋電機株式会社 | 半導体装置の製造方法 |
US7147735B2 (en) * | 2004-07-22 | 2006-12-12 | Intel Corporation | Vibratable die attachment tool |
JP5502268B2 (ja) * | 2006-09-14 | 2014-05-28 | 信越化学工業株式会社 | システムインパッケージ型半導体装置用の樹脂組成物セット |
SG148056A1 (en) | 2007-05-17 | 2008-12-31 | Micron Technology Inc | Integrated circuit packages, methods of forming integrated circuit packages, and methods of assembling intgrated circuit packages |
JP4828515B2 (ja) * | 2007-12-27 | 2011-11-30 | 新光電気工業株式会社 | 半導体装置の製造方法 |
JP5117371B2 (ja) * | 2008-12-24 | 2013-01-16 | 新光電気工業株式会社 | 半導体装置およびその製造方法 |
EP2416633A1 (de) * | 2010-08-04 | 2012-02-08 | AT & S Austria Technologie & Systemtechnik Aktiengesellschaft | Verfahren ur Festlegung und/oder Einbettung eines elektronischen Bauteils sowie Kleber zur Verwendung in einem derartigen Verfahren |
CN102543774B (zh) * | 2012-02-28 | 2014-02-26 | 电子科技大学 | 一种基于环氧树脂类粘合剂的芯片封装方法 |
JPWO2014077044A1 (ja) * | 2012-11-16 | 2017-01-05 | シャープ株式会社 | フリップチップ接合方法、および当該フリップチップ接合方法を含むことを特徴とする固体撮像装置の製造方法 |
US10388599B2 (en) * | 2014-02-28 | 2019-08-20 | Intellipaper, Llc | Integrated circuitry and methods for manufacturing same |
TWI752187B (zh) * | 2017-03-14 | 2022-01-11 | 美商庫利克和索夫工業公司 | 用於對半導體元件進行接合的系統及其方法 |
KR20210060732A (ko) | 2019-11-18 | 2021-05-27 | 삼성디스플레이 주식회사 | 표시 장치의 제조 방법 |
CN112968094B (zh) * | 2020-07-13 | 2022-03-01 | 重庆康佳光电技术研究院有限公司 | 一种倒装led芯片及其制备方法、显示面板 |
Citations (1)
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WO2000045430A1 (en) * | 1999-01-29 | 2000-08-03 | Matsushita Electric Industrial Co., Ltd. | Electronic parts mounting method and device therefor |
Family Cites Families (5)
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JPH0777227B2 (ja) * | 1986-12-16 | 1995-08-16 | 松下電器産業株式会社 | 半導体装置の製造方法 |
JPH1084014A (ja) * | 1996-07-19 | 1998-03-31 | Shinko Electric Ind Co Ltd | 半導体装置の製造方法 |
WO1998030073A1 (en) * | 1996-12-27 | 1998-07-09 | Matsushita Electric Industrial Co., Ltd. | Method and device for mounting electronic component on circuit board |
JP3064998B2 (ja) * | 1997-10-28 | 2000-07-12 | 日本電気株式会社 | 半導体装置及びその製造方法 |
JP2000036520A (ja) * | 1998-05-15 | 2000-02-02 | Nec Corp | フリップチップ実装方法及び装置 |
-
2001
- 2001-03-12 JP JP2001068376A patent/JP2002270642A/ja active Pending
-
2002
- 2002-03-11 EP EP02702876A patent/EP1369911A4/en not_active Withdrawn
- 2002-03-11 WO PCT/JP2002/002255 patent/WO2002073686A1/ja not_active Application Discontinuation
- 2002-03-11 CN CN02801486A patent/CN1462474A/zh active Pending
- 2002-03-11 US US10/275,069 patent/US20030139004A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2000045430A1 (en) * | 1999-01-29 | 2000-08-03 | Matsushita Electric Industrial Co., Ltd. | Electronic parts mounting method and device therefor |
Non-Patent Citations (1)
Title |
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See also references of EP1369911A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8129220B2 (en) | 2009-08-24 | 2012-03-06 | Hong Kong Polytechnic University | Method and system for bonding electrical devices using an electrically conductive adhesive |
US8833418B2 (en) | 2009-08-24 | 2014-09-16 | The Hong Kong Polytechnic University | Method and system for bonding electrical devices using an electrically conductive adhesive |
Also Published As
Publication number | Publication date |
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CN1462474A (zh) | 2003-12-17 |
EP1369911A1 (en) | 2003-12-10 |
JP2002270642A (ja) | 2002-09-20 |
US20030139004A1 (en) | 2003-07-24 |
EP1369911A4 (en) | 2004-03-17 |
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