WO2008133316A2 - めっき部材およびその製造方法 - Google Patents
めっき部材およびその製造方法 Download PDFInfo
- Publication number
- WO2008133316A2 WO2008133316A2 PCT/JP2008/057995 JP2008057995W WO2008133316A2 WO 2008133316 A2 WO2008133316 A2 WO 2008133316A2 JP 2008057995 W JP2008057995 W JP 2008057995W WO 2008133316 A2 WO2008133316 A2 WO 2008133316A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plane
- plating layer
- orientation
- alloy
- substrate
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/08—Tin or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
- C25D5/505—After-treatment of electroplated surfaces by heat-treatment of electroplated tin coatings, e.g. by melting
-
- 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
- H05K3/22—Secondary treatment of printed circuits
- H05K3/24—Reinforcing the conductive pattern
- H05K3/244—Finish plating of conductors, especially of copper conductors, e.g. for pads or lands
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12708—Sn-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12861—Group VIII or IB metal-base component
- Y10T428/12903—Cu-base component
Definitions
- the present invention relates to a fitting member and a method for manufacturing the same, and more particularly, a method for manufacturing a bonding member having a bonding layer on the surface, such as an external terminal in an electronic component such as a semiconductor device in which an IC chip is mounted on a lead frame.
- a bonding member having a bonding layer on the surface such as an external terminal in an electronic component such as a semiconductor device in which an IC chip is mounted on a lead frame.
- the base material of the external terminals is copper, copper alloy, brass,
- a protective film (plating layer) is usually formed on the terminal surface by plating or the like to prevent oxidation.
- an alloy containing lead has been used conventionally.
- lead-free there has been a demand for lead-free from the viewpoint of reducing the environmental burden.
- Sn, Sn-Cu, Sn-Bi, Sn-Ag alloys can also be used as the plating layer material for the terminals.
- materials that do not contain lead are being used.
- a Wies force which is a needle-like single crystal of Sn, for example, is generated from the plating layer.
- Patent Document 1 discloses that when a lead-free Sn plating layer is formed on the surface of a lead substrate constituting an external terminal of an electronic component, plating is performed. It is described that the generation of the twist force in the plating layer can be suppressed by reducing the size of the crystal grain boundary contained per unit volume of the plating layer as much as possible by increasing the crystal grain size constituting the layer. .
- Patent Documents 2 and 3 describe techniques for controlling the orientation index of the azimuth plane.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2005-86 1 58
- Patent Document 2 Japanese Unexamined Patent Publication No. 2003-1 29284
- Patent Document 3 Japanese Unexamined Patent Publication No. 2005-123598 Disclosure of Invention
- the present inventors have conducted a lot of experiments and research on a method for suppressing the generation of the whistle force in the lead-free contact layer, but the conventionally proposed method for suppressing whisker is anyway. However, it should be improved Experience that there is a point.
- the present invention has been made in the circumstances as described above, and the present invention generates a whistling force by a new method that has not been known so far in a tucking member having a plating layer made of a lead-free material. It is an object to provide a plated member that can suppress this. It is another object of the present invention to provide a manufacturing method for manufacturing such a plated member. Means for solving the problem
- the present inventors further conducted experiments and researches to improve the solder wettability and the like.
- the method to control the crystallographic orientation plane and the selected orientation index to the plating layer appropriately it is possible to almost completely suppress the generation of the twist force in the plating layer. I found a new fact.
- the plating member according to the first aspect of the present invention is a plating member having a plating layer made of a lead-free material on the surface of a base material.
- the plane orientation index is 2.5 or more and 4.0 or less.
- the plating member according to the second aspect of the present invention is a plated member having a plating layer made of a lead-free material on the surface of a substrate, wherein the (220) plane and the (321) plane of the plating layer
- the ratio of the orientation index to (220) / (32 1) is 0.5 or more and 1.5 or less.
- the brazing member In the brazing member according to the first aspect and the second aspect described above, Sri, Zn, or an alloy using them as the first material is used as the lead-free material that is the plating layer forming component.
- the plating material is pure Sn, or Sn alloy such as Sn—Cu, Sn—B i, Sn—A g. Of these, 31—hiji alloy is preferred.
- the substrate is preferably Cu or a Cu alloy.
- the base surface has a (220) orientation plane.
- a base layer having a (220) orientation plane is formed between the substrate surface and the plating layer. Thereby, it becomes easy to obtain a plating layer having the orientation surface.
- the method for producing a plated member according to the present invention for producing the above plated member includes, as one aspect, a first step in which the crystal orientation of the substrate surface is the (2 20) plane, and plating on the substrate surface And a second step of applying.
- the orientation of the plating layer can be controlled as desired by setting the crystal orientation of the substrate surface to the (220) plane.
- the first step may include a step of forming an underlayer whose crystal orientation is controlled to the (220) plane on the surface of the base material.
- the underlayer can be formed, for example, by applying an oriented undercoat layer or applying an oriented vapor deposition film.
- the plating surface can be oriented as desired.
- Layers such as Ni, Ag, Au, and Pd are effective for the underlayer, and methods such as the sputtering method, PLD, CVD, PVD, and MBE can be used to create the underlayer. Electric plating may be used.
- a plating layer made of a lead-free material is formed on the surface of a base material, so that it is possible to almost completely suppress the occurrence of a Wies force in the plating member.
- the distance between the terminals is narrowed to about several hundred ⁇ m.
- an IC chip is a part like a lead frame. It can employ
- FIG. 1 is a schematic diagram for explaining an example of a tacking member according to the present invention.
- FIG. 2 is a schematic diagram for explaining another example of the tacking member according to the present invention. Explanation of symbols
- a plating layer 2 made of an Sn—Cu alloy was formed on the surface of a Cu alloy substrate 1 to obtain a test fitting member 3. At that time, the crystal orientation plane of plating layer 2
- a plurality of plated members whose (321) plane orientation index was between 1.17 and 8.27 were manufactured. For each, a constant temperature test at 25 ° C, 55 ° C, and 85 ° C for 2000 hours (H) (1), between 40 ° C and 85 ° C, and 0 ° C A thermal cycle test (test 2) was repeated, in which the thermal cycle between 60 ° C and 2000 was repeated, and the presence or absence of whisker generation was observed with a scanning electron microscope. The results are shown in Table 1.
- the orientation index was calculated by X-ray diffraction.
- a plating layer 2 made of S ⁇ —Cu alloy was formed on the surface of the Cu alloy base material 1 to obtain a test fitting member 3.
- the ratio (220) / (321) of the orientation index between the (22 0) plane and the (321) plane in the plating layer is 0.007 ⁇ 3.
- a plurality of plated parts between 43 were manufactured.
- the same isothermal leaving test (Test 1) and a thermal cycle test (Test 2) as Example 1 were done, and the presence or absence of whisker generation was observed with a scanning electron microscope. The results are shown in Table 2.
- the method for calculating the orientation index is the same as in Example 1.
- a plating layer 2 made of S ⁇ —Cu alloy was formed on the surface of the Cu alloy substrate 1 to obtain a test fitting member 3. At that time, the surface of the Cu alloy base material 1
- An electroplating layer 2 made of Sn—Cu alloy was formed on the surface of two Cu alloy substrates 1. Of each plating layer 2
- the orientation index of (3 2 1) plane and (220) plane was measured by the same method as in Example 1.
- the ratio (220) / (3 2 1) of the orientation index between the (220) plane and the (321) plane was obtained.
- the results are shown in Table 3.
- the orientation index of the (32 1) plane and (220) plane of the electroplating layer 2 can also be controlled by controlling the orientation plane of the surface of the alloy substrate 1.
- the orientation index of the (3 2 1) plane of the plating layer 2 and the orientation index between the (220) plane and the (3 2 1) plane It can be seen that a plated member can be obtained in which both the ratio (220) / (3 2 1) force falls within the scope of the present invention.
- the substrate surface is oriented in the (2 2 0) plane, the (3 2 2 1)
- the orientation index of the plane and the ratio of the (220) plane and the (32 1) plane orientation index (220) / (321) are both outside the scope of the present invention. As one of the methods, it can be seen that it is effective to orient the surface of the alloy substrate 1 to the (220) plane.
- a plating layer 2 made of S ⁇ —CU alloy was formed on the surface of the Cu alloy base material 1 to obtain a test fitting member 3. At that time, the orientation index of the (321) plane of the plating layer 2 was controlled by performing heat treatment.
- Example 4-11 Heat treatment was performed at temperatures of 100 ° C., 125 ° C., 150 ° C., and 200 ° C. for 20 hours (H).
- Table 4 shows the (32 1) plane orientation index before heat treatment and the (321) plane orientation index after heat treatment.
- Example 4 1-2 Heat treatment was performed at a temperature of 125 ° C. for 10 hours (H), 20 hours (H), 40 hours (H), and 60 hours (H).
- Table 5 shows the orientation index of the (321) plane before heat treatment and the orientation index of the (321) plane after heat treatment.
- the orientation index of the (321) plane of the plating layer is 4.47, which is out of the scope of the present invention, and the tacking member must be subjected to an appropriate heat treatment. Therefore, it is necessary that the orientation index of the (321) plane is within the range of the present invention. From this, it can be seen that the heat treatment is an effective control means as one method for obtaining the tack member according to the present invention.
- the Ni underlayer 4 having the (220) plane orientation was formed on the surface of the Cu alloy base material 1 having no special orientation by the sputtering method.
- An Sn—Cu plating layer 2 was formed on the Ni underlayer 4 in the same manner as in Example 1 to obtain a plating member 3.
- the (321) orientation index of the plating layer was measured.
- the Sn-Cu plating layer 2 was directly formed on the surface of the same Cu alloy base material 1 without forming an underlayer to form a plating member.
- the (321) orientation index of the layer was measured. The results are shown in Table 6.
- the orientation index of the (321) plane of the plating layer is 4.61, which is outside the scope of the present invention, but the (220) plane
- the orientation index of the (32 1) plane of the plating layer can be 3.27, which is within the range of the present invention. From this, it can be seen that it is effective to form a base layer having a specific orientation on the surface of the substrate as one of the methods for obtaining the adhesive member according to the present invention.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112008001094T DE112008001094T5 (de) | 2007-04-25 | 2008-04-18 | Plattiertes Element und Verfahren zum Herstellen desselben |
US12/595,730 US20100119868A1 (en) | 2007-04-25 | 2008-04-18 | Plated member and method for manufacturing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007115904A JP2008274316A (ja) | 2007-04-25 | 2007-04-25 | めっき部材およびその製造方法 |
JP2007-115904 | 2007-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008133316A2 true WO2008133316A2 (ja) | 2008-11-06 |
Family
ID=39926203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/057995 WO2008133316A2 (ja) | 2007-04-25 | 2008-04-18 | めっき部材およびその製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100119868A1 (ja) |
JP (1) | JP2008274316A (ja) |
CN (1) | CN101636526A (ja) |
DE (1) | DE112008001094T5 (ja) |
WO (1) | WO2008133316A2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9074627B2 (en) | 2009-12-10 | 2015-07-07 | Miba Gleitlager Gmbh | Anti-friction coating |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5419275B2 (ja) | 2009-11-30 | 2014-02-19 | Jx日鉱日石金属株式会社 | リフローSnめっき部材 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3314754B2 (ja) * | 1999-04-22 | 2002-08-12 | 松下電器産業株式会社 | 鉛を含まない錫ベース半田皮膜を有する半導体装置およびその製造方法 |
JP4016637B2 (ja) | 2001-10-24 | 2007-12-05 | 松下電器産業株式会社 | 錫−銀合金めっき皮膜を有する電子部品用リードフレーム及びその製造方法 |
JP4897187B2 (ja) * | 2002-03-05 | 2012-03-14 | ローム・アンド・ハース・エレクトロニック・マテリアルズ,エル.エル.シー. | スズメッキ方法 |
US6860981B2 (en) * | 2002-04-30 | 2005-03-01 | Technic, Inc. | Minimizing whisker growth in tin electrodeposits |
JP4434669B2 (ja) | 2003-09-11 | 2010-03-17 | Necエレクトロニクス株式会社 | 電子部品 |
JP2005123598A (ja) | 2003-09-24 | 2005-05-12 | Toppan Printing Co Ltd | 配線基板 |
US7488408B2 (en) * | 2004-07-20 | 2009-02-10 | Panasonic Corporation | Tin-plated film and method for producing the same |
JP4472751B2 (ja) * | 2005-06-17 | 2010-06-02 | 富士通株式会社 | はんだ処理方法 |
KR20080024525A (ko) * | 2005-07-11 | 2008-03-18 | 테크닉,인코포레이티드 | 주석 위스커 성장을 최소화시키는 성질 또는 특성을 갖는주석 전착물 |
JP5158303B2 (ja) * | 2006-04-14 | 2013-03-06 | 上村工業株式会社 | 錫電気めっき浴、錫めっき皮膜、錫電気めっき方法及び電子機器構成部品 |
JP2007284762A (ja) * | 2006-04-18 | 2007-11-01 | Sumitomo Metal Mining Co Ltd | スズめっき皮膜の形成方法および半導体装置 |
-
2007
- 2007-04-25 JP JP2007115904A patent/JP2008274316A/ja active Pending
-
2008
- 2008-04-18 CN CN200880008469A patent/CN101636526A/zh active Pending
- 2008-04-18 DE DE112008001094T patent/DE112008001094T5/de not_active Withdrawn
- 2008-04-18 WO PCT/JP2008/057995 patent/WO2008133316A2/ja active Application Filing
- 2008-04-18 US US12/595,730 patent/US20100119868A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9074627B2 (en) | 2009-12-10 | 2015-07-07 | Miba Gleitlager Gmbh | Anti-friction coating |
EP2341257A3 (de) * | 2009-12-10 | 2016-08-03 | Miba Gleitlager Austria GmbH | Gleitschicht |
Also Published As
Publication number | Publication date |
---|---|
JP2008274316A (ja) | 2008-11-13 |
US20100119868A1 (en) | 2010-05-13 |
CN101636526A (zh) | 2010-01-27 |
DE112008001094T5 (de) | 2010-06-10 |
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