WO2013057802A1 - 基板めっき治具 - Google Patents
基板めっき治具 Download PDFInfo
- Publication number
- WO2013057802A1 WO2013057802A1 PCT/JP2011/074032 JP2011074032W WO2013057802A1 WO 2013057802 A1 WO2013057802 A1 WO 2013057802A1 JP 2011074032 W JP2011074032 W JP 2011074032W WO 2013057802 A1 WO2013057802 A1 WO 2013057802A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- holding member
- seal packing
- plated
- annular
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/001—Apparatus specially adapted for electrolytic coating of wafers, e.g. semiconductors or solar cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/004—Sealing devices
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/005—Contacting devices
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/12—Semiconductors
- C25D7/123—Semiconductors first coated with a seed layer or a conductive layer
Definitions
- the present invention relates to a plating jig for holding a substrate when performing electrolytic plating of the substrate.
- the plating jig that holds the substrate is configured such that the conductive pin contacts the conductive film of the substrate while holding the substrate. . Then, with the substrate held on the plating jig, the substrate is immersed in the electrolytic plating solution in the plating solution tank together with the jig, and current is supplied from the energizing pins to perform the electrolytic plating.
- a sealing member for sealing the semiconductor wafer is provided so that the plating solution does not flow outside the plating surface of the semiconductor wafer. The thing which provided the cathode contact in the surface which does not contact a plating solution is reported (patent document 1).
- the present inventors also provided a current-carrying member with a U-shaped side surface instead of the current-carrying pin inside the seal packing, and this contacts the conductive film exposed on the semiconductor wafer surface and the member that conducts electricity to the external electrode.
- a semiconductor wafer plating jig is reported (Patent Document 2).
- the present invention is such that the current-carrying pins and current-carrying members are not exposed to the plating solution in the plating of substrates such as semiconductor wafers, glass plates, and ceramic plates, and can be reliably energized to the substrate. It is an object to provide a plating jig that can be easily replaced.
- an annular seal packing having an inner peripheral portion and an outer peripheral portion, and an opening formed at the center side of the annular seal packing. 2 holding members, and by sandwiching and holding the substrate to be plated between the first holding member and the second holding member, the tips of the inner peripheral portion and the outer peripheral portion of the annular seal packing are plated.
- the substrate to be plated is in close contact with the surface to be plated and the first holding member, and the end of the substrate to be plated is held between the inner periphery and the outer periphery of the annular seal packing, and the surface to be plated of the substrate to be plated is exposed to the opening.
- an energizing member having a special shape is provided inside the annular seal packing used for this, thereby energizing the plating of the substrate to be plated. With wood is not exposed to the plating solution, can be reliably energized be plated substrate, moreover, replacement of the seal packing also found that easy, and accomplished the present invention.
- the present invention includes a plate-like first holding member and a second holding member provided with an annular seal packing having an inner peripheral portion and an outer peripheral portion and having an opening formed at the center side of the annular seal packing. And having the substrate to be plated interposed and held between the first holding member and the second holding member so that the inner peripheral portion and the outer peripheral portion of the annular seal packing are respectively plated surfaces of the substrate to be plated. The end of the substrate to be plated is held between the inner peripheral portion and the outer peripheral portion of the annular seal packing, and the surface to be plated of the substrate to be plated is exposed to the opening.
- a substrate plating jig An annular first energization member having a plurality of protruding contacts is provided inside the annular seal packing, and the substrate to be plated is sandwiched and held between the first holding member and the second holding member, thereby
- the substrate plating jig is characterized in that a surface to be plated and a protruding contact are in contact with each other inside an annular seal packing.
- the current-carrying member is not exposed to the plating solution when plating a substrate such as a semiconductor wafer, a glass plate, or a ceramic plate, and the substrate can be reliably energized, and the seal packing can be easily replaced. It is.
- FIG. 3 is a cross-sectional view taken along line A-A ′ in FIG. 2. It is drawing which shows a part of cyclic
- FIG. 1 is a perspective view showing an entire substrate plating jig for holding a circular semiconductor wafer.
- 1 is a substrate plating jig
- 2 is a first holding member
- 3 is a second holding member
- 4 is an annular seal packing
- 5 is an annular first energizing member having a plurality of protruding contacts
- 6 is an opening
- 7 is a second energizing member
- 8 is a substrate base
- 9 is a semiconductor wafer
- 10 is a handle
- 11 is a hinge mechanism.
- a substrate base 8 having substantially the same shape as the semiconductor wafer 9 is provided on the upper surface of the first holding member 2.
- the height of the substrate base 8 is not particularly limited, but it needs to be high enough to provide a space for housing components such as the annular first energization member 5 having a plurality of protruding contacts inside the annular seal packing 4. is there.
- a second energizing member 7 that energizes the external electrode is provided on the upper surface of the first holding member 2.
- the second energizing member 7 has an annular first seal member having a plurality of protruding contacts inside the annular seal packing 4 by sandwiching and holding the semiconductor wafer 9 between the first holding member 2 and the second holding member 3.
- the second energizing member 7 is energized by being connected to a conductive member (not shown) embedded in the first holding member 2 or drawn from the back surface.
- the shape of the second current-carrying member 7 is not particularly limited as long as it is a shape that can easily come into contact with the annular first current-carrying member 5 having a plurality of protruding contacts, and examples thereof include a leaf spring and a coil spring.
- a third energization member (not shown) corresponding to the position where the second energization member 7 contacts the annular first energization member 5 having a plurality of protruding contacts.
- the contact method between the second energization member 7 and the third energization member is not particularly limited. For example, sliding contact using an outlet-type energization member is preferable.
- the second energizing member 7 that energizes the external electrode is provided on the first holding member 2 and is energized by contacting the annular first energizing member 5 having a plurality of protruding contacts.
- the energization from the external electrode to the annular first energizing member 5 having a plurality of protruding contacts is performed when the semiconductor wafer 9 is interposed between the first holding member 2 and the second holding member 3 and held.
- the method is not particularly limited as long as the sealing performance by the seal packing 4 is not hindered.
- the first holding member 2 is provided with a fourth energization member (not shown) for energizing the external electrode, and this is provided with an annular first energization member having a plurality of protruding contacts.
- a method of directly connecting wires 5 to energize them can be used.
- the fourth energizing member used here is formed of a flexible conductive member (not shown), and when sandwiching and holding the semiconductor wafer 9 between the first holding member 2 and the second holding member 3, It is preferable that it bends or expands and contracts within the annular seal packing 4.
- the connection between the fourth energizing member, the second energizing member 7 and the annular first energizing member 5 having a plurality of protruding contacts is in the vicinity of the hinge mechanism 11. It is preferable to carry out with.
- annular seal packing 4 and an opening 6 having an inner diameter slightly smaller than that of the semiconductor wafer 9 are provided on the center side of the annular seal packing 4.
- An annular first energization member 5 having a plurality of protruding contacts is provided inside the annular seal packing 4.
- the second holding member 3 may be provided with a groove or a step so that the annular seal packing 4 can be simply fixed.
- the annular seal packing 4 is not particularly limited as long as it has an inner peripheral portion and an outer peripheral portion, but is preferably substantially C-shaped, substantially J-shaped, substantially U-shaped, substantially U-shaped, etc. Among these, a substantially U-shaped one having a peripheral edge higher than the inner peripheral part is preferable.
- FIG. 2 is an overall view of the annular first energization member 5 having a plurality of protruding contacts
- FIG. 3 is a cross-sectional view of the annular first energization member 5 having a plurality of protruding contacts.
- the annular first energization member 5 having a plurality of projecting contacts is sized to fit inside the annular seal packing 4 and includes an annular energization member 5a and projecting contacts 5b.
- the protruding contacts 5b are, for example, a substantially trapezoidal shape, a substantially square shape, a substantially triangular shape, a substantially rod shape, etc., and a plurality of the protruding contact points 5b with an angle ⁇ toward the center direction of the annular seal packing 4 or the opening 6 Provided.
- Another example of the shape of the protruding contact 5b is shown in FIGS.
- the protruding contact 5b may be formed separately from the annular energizing member 5a and may be joined by welding or the like.
- the annular energizing member 5a and the protruding contact 5b are made of a plate-shaped material. What was integrally formed by the press etc. is preferable.
- the number of the projecting contacts 5b varies depending on the size of the semiconductor wafer and the like and cannot be generally stated, but is preferably 6 or more.
- the angle ⁇ at which the protruding contact 5b is provided on the annular energizing member 5a is 15 to 45 °, preferably 30 °.
- the material of the energizing member 5a and the protruding contact 5b is not particularly limited as long as it is a material to be energized, and examples thereof include materials having hardness and elasticity such as phosphor bronze and stainless spring steel.
- the semiconductor wafer 9 is sandwiched and held between the first holding member 2 and the second holding member 3. Energization to the is ensured. Further, by using the annular first energization member 5 having such a plurality of protruding contacts and providing this inside the annular seal packing 4, a semiconductor is provided between the first holding member 2 and the second holding member 3. When the wafer 9 is interposed and held, the annular seal packing 4 can be pressed with equal pressure, and the deformation of the seal packing can be reduced. As a result, the sealing performance by the seal packing is improved, and the penetration of the plating solution into the energized portion can be suppressed.
- a chemical fixing means such as a double-sided tape or an adhesive may be used.
- a physical fixing means such as a stopper may be used. If it is a physical fixing means such as screwing, it is easy to replace the annular seal packing 4 and the annular first energization member 5 having a plurality of protruding contacts.
- the hinge mechanism 11 is provided on the first holding member 2 and the second holding member 3, and the hinge mechanism is provided. What is necessary is just to fix the other end which provided 11 with a clamp, a U-shaped instrument (none is shown), etc. Moreover, you may utilize the clamper of patent 3629396 for fixation of the 1st holding member 2 and the 2nd holding member 3.
- FIG. 1 is a clamp, a U-shaped instrument (none is shown), etc.
- FIG. 7 shows the first holding member 2, the second holding member 3, the annular seal packing 4, and the annular first having a plurality of protruding contacts when the second holding member 3 is stacked on the first holding member 2. It is a figure which shows the positional relationship of the electricity supply member 5, the 2nd electricity supply member 7, the board
- FIG. By overlapping the second holding member 3 on the first holding member 2, the tips of the inner peripheral portion 4 a and the outer peripheral portion 4 b of the annular seal packing 4 are in close contact with the surface to be plated of the semiconductor wafer 9 and the first holding member 2, respectively. And sealed.
- the end of the semiconductor wafer 9 is held between the inner peripheral portion 4a and the outer peripheral portion 4b of the annular seal packing 4, and an annular first energization member 5 having a surface to be plated of the semiconductor wafer 9 and a plurality of protruding contacts is provided. Contact is made inside the annular seal packing 4. Further, the second energization member 7 energized with the external electrode by the conductive member 12 contacts and energizes the annular first energization member 5 having a plurality of protruding contacts.
- the substrate plating jig described above If electrolytic plating is performed using the substrate plating jig described above, the current-carrying member is not exposed to the plating solution, the substrate can be reliably energized, and the seal packing can be easily replaced.
- the substrate plating jig of the present invention can be used for manufacturing semiconductors.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Electroplating Methods And Accessories (AREA)
- Electrodes Of Semiconductors (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
環状のシールパッキンの内部に複数の突出接点を有する環状の第1通電部材を設け、第1保持部材と第2保持部材の間に被めっき基板を介在させ挟み込み保持することにより、被めっき基板の被めっき面と突出接点が環状のシールパッキンの内部で接触することを特徴とする基板めっき治具である。
2 … … 第1保持部材
3 … … 第2保持部材
4 … … 環状のシールパッキン
4a … … 内周部
4b … … 外周部
5 … … 複数の突出接点を有する環状の第1通電部材
5a … … 環状の通電部材
5b … … 突出接点
6 … … 開口
7 … … 第2通電部材
8 … … 基板台
9 … … 半導体ウエハ
10 … … 取っ手
11 … … ヒンジ機構
12 … … 導電部材
Claims (5)
- 板状の第1保持部材と、内周部および外周部を有する環状のシールパッキンが設けられると共に環状のシールパッキンの中心側に開口が形成されている第2保持部材とを具備し、第1保持部材と第2保持部材の間に被めっき基板を介在させ挟み込み保持することにより、前記環状のシールパッキンの内周部および外周部の先端がそれぞれ被めっき基板の被めっき面および第1保持部材に密接し、かつ被めっき基板の端が環状のシールパッキンの内周部と外周部の間で保持され、被めっき基板の被めっき面が前記開口に露出するように構成された基板めっき治具であって、
環状のシールパッキンの内部に複数の突出接点を有する環状の第1通電部材を設け、第1保持部材と第2保持部材の間に被めっき基板を介在させ挟み込み保持することにより、被めっき基板の被めっき面と突出接点が環状のシールパッキンの内部で接触することを特徴とする基板めっき治具。 - 第1保持部材に外部電極と通電する第2通電部材を設け、第1保持部材と第2保持部材の間に被めっき基板を介在させ挟み込み保持することにより、環状シールパッキンの内部で複数の突出接点を有する環状の第1通電部材と第2通電部材が接触して通電するものである請求項1記載の基板めっき治具。
- 第1通電部材と、第2通電部材との接触をすべり接触により行うものである請求項2記載の基板めっき治具。
- 第1保持部材に外部電極と通電する第4通電部材を設け、これを複数の突出接点を有する環状の第1通電部材に直接配線接続して通電するものである請求項1記載の基板めっき治具。
- 板状の第1保持部材と、第2保持部材がヒンジ機構で接続されたものである請求項1~4の何れかに記載の基板めっき治具。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013539447A JP5847832B2 (ja) | 2011-10-19 | 2011-10-19 | 基板めっき治具 |
CN201180074160.5A CN103874790A (zh) | 2011-10-19 | 2011-10-19 | 基板镀敷夹具 |
PCT/JP2011/074032 WO2013057802A1 (ja) | 2011-10-19 | 2011-10-19 | 基板めっき治具 |
US14/351,802 US20140251798A1 (en) | 2011-10-19 | 2011-10-19 | Substrate electroplating jig |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2011/074032 WO2013057802A1 (ja) | 2011-10-19 | 2011-10-19 | 基板めっき治具 |
Publications (1)
Publication Number | Publication Date |
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WO2013057802A1 true WO2013057802A1 (ja) | 2013-04-25 |
Family
ID=48140479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2011/074032 WO2013057802A1 (ja) | 2011-10-19 | 2011-10-19 | 基板めっき治具 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20140251798A1 (ja) |
JP (1) | JP5847832B2 (ja) |
CN (1) | CN103874790A (ja) |
WO (1) | WO2013057802A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170321343A1 (en) * | 2016-05-09 | 2017-11-09 | Ebara Corporation | Substrate holder and plating apparatus using the same |
US20200168499A1 (en) * | 2018-11-26 | 2020-05-28 | C. Uyemura & Co., Ltd. | Holding jig |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9464362B2 (en) * | 2012-07-18 | 2016-10-11 | Deca Technologies Inc. | Magnetically sealed wafer plating jig system and method |
JP6210298B2 (ja) * | 2013-11-26 | 2017-10-11 | 大森ハンガー工業株式会社 | メッキ用基板保持具 |
JP6508935B2 (ja) * | 2014-02-28 | 2019-05-08 | 株式会社荏原製作所 | 基板ホルダ、めっき装置及びめっき方法 |
JP6545585B2 (ja) * | 2014-10-16 | 2019-07-17 | 株式会社荏原製作所 | 基板ホルダおよびめっき装置 |
CN105350059A (zh) * | 2015-11-28 | 2016-02-24 | 石家庄海科电子科技有限公司 | 一种基片单面电镀的夹具及方法 |
CN110528041A (zh) * | 2019-08-13 | 2019-12-03 | 广州兴森快捷电路科技有限公司 | 用于晶元的电镀加工方法、晶元及线路板 |
CN110629274A (zh) * | 2019-08-29 | 2019-12-31 | 昆山东威科技股份有限公司 | 一种夹持机构及电镀装置 |
CN215925114U (zh) * | 2021-01-30 | 2022-03-01 | 厦门海辰新能源科技有限公司 | 导电夹及镀膜机 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06108285A (ja) * | 1991-04-22 | 1994-04-19 | Toshiba Corp | 半導体ウェハめっき用治具 |
JPH11200096A (ja) * | 1997-11-06 | 1999-07-27 | Ebara Corp | ウエハのメッキ用治具 |
JPH11204459A (ja) * | 1998-01-09 | 1999-07-30 | Ebara Corp | 半導体ウエハのメッキ治具 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7022211B2 (en) * | 2000-01-31 | 2006-04-04 | Ebara Corporation | Semiconductor wafer holder and electroplating system for plating a semiconductor wafer |
KR100980051B1 (ko) * | 2002-06-21 | 2010-09-06 | 가부시키가이샤 에바라 세이사꾸쇼 | 기판홀더 및 도금장치 |
-
2011
- 2011-10-19 WO PCT/JP2011/074032 patent/WO2013057802A1/ja active Application Filing
- 2011-10-19 CN CN201180074160.5A patent/CN103874790A/zh active Pending
- 2011-10-19 US US14/351,802 patent/US20140251798A1/en not_active Abandoned
- 2011-10-19 JP JP2013539447A patent/JP5847832B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06108285A (ja) * | 1991-04-22 | 1994-04-19 | Toshiba Corp | 半導体ウェハめっき用治具 |
JPH11200096A (ja) * | 1997-11-06 | 1999-07-27 | Ebara Corp | ウエハのメッキ用治具 |
JPH11204459A (ja) * | 1998-01-09 | 1999-07-30 | Ebara Corp | 半導体ウエハのメッキ治具 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170321343A1 (en) * | 2016-05-09 | 2017-11-09 | Ebara Corporation | Substrate holder and plating apparatus using the same |
US10738390B2 (en) * | 2016-05-09 | 2020-08-11 | Ebara Corporation | Substrate holder and plating apparatus using the same |
US20200168499A1 (en) * | 2018-11-26 | 2020-05-28 | C. Uyemura & Co., Ltd. | Holding jig |
US11887882B2 (en) * | 2018-11-26 | 2024-01-30 | C. Uyemura & Co., Ltd. | Holding jig |
Also Published As
Publication number | Publication date |
---|---|
JPWO2013057802A1 (ja) | 2015-04-02 |
US20140251798A1 (en) | 2014-09-11 |
CN103874790A (zh) | 2014-06-18 |
JP5847832B2 (ja) | 2016-01-27 |
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