JP4792045B2 - パラジウム層を堆積する方法およびこのためのパラジウム浴 - Google Patents
パラジウム層を堆積する方法およびこのためのパラジウム浴 Download PDFInfo
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- JP4792045B2 JP4792045B2 JP2007550745A JP2007550745A JP4792045B2 JP 4792045 B2 JP4792045 B2 JP 4792045B2 JP 2007550745 A JP2007550745 A JP 2007550745A JP 2007550745 A JP2007550745 A JP 2007550745A JP 4792045 B2 JP4792045 B2 JP 4792045B2
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- palladium
- layer
- nickel
- bath
- alloy
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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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
-
- 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
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1646—Characteristics of the product obtained
- C23C18/165—Multilayered product
- C23C18/1651—Two or more layers only obtained by electroless plating
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/42—Coating with noble metals
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/48—Coating with alloys
- C23C18/50—Coating with alloys with alloys based on iron, cobalt or nickel
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/54—Contact plating, i.e. electroless electrochemical plating
-
- H10P14/46—
-
- 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
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/072—Electroless plating, e.g. finish plating or initial plating
-
- 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
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0703—Plating
- H05K2203/073—Displacement plating, substitution plating or immersion plating, e.g. for finish plating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electrochemistry (AREA)
- Chemically Coating (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Electroplating Methods And Accessories (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Parts Printed On Printed Circuit Boards (AREA)
Description
必要な層厚(信頼できる金ワイヤ接合を生じるために一般に0.5μm)に金層を厚くするために、自触媒作用により堆積した金に続く自触媒作用(化学的)によるニッケル/ストライク金。
自触媒作用により堆積したパラジウム(0.5μmまで)および高い反応性の結果としての化学変化に対してパラジウムを保護するための引き続く電荷交換法による金の堆積に続く自触媒作用によるニッケル。
高品質の被覆を生じる信頼できる浴の取り扱いを実現するために製造がきわめて複雑である。
生じる反応機構により電解液の組成がかなり複雑である。これらの自触媒法を使用して作業するために生じる費用が化学物質の使用および消費により相当して高い。
必要な多機能性層特性(特に金ワイヤとの信頼できるサーモソニック接合)を達成するために、高い層の厚さが最終的な客(=部品の組み立て人)により指摘された。機能層としての貴金属の使用は全部の製造費用にかなり影響する。
a)硫酸パラジウム、硝酸パラジウムおよび酢酸パラジウムからなる群から選択される無機または有機アニオンを有する少なくとも1種のパラジウム塩からのパラジウム10〜1000mg/l、特に10〜500mg/l
b)硫酸、硝酸および燐酸からなる群から選択される少なくとも1種の無機酸5〜500g/l、特に10〜200g/lおよび
c)銅、タリウム、セレンおよびテルルの無機化合物からの元素、銅、タリウム、セレンおよびテルルの少なくとも1種、1〜200mg/l、特に2〜50mg/l。
回路基板の銅導体路上に本発明の方法によりニッケル/パラジウム/金を堆積した。
硫酸パラジウムとしてパラジウム100mg/l、燐酸100g/lおよび銅50mg/lを有するパラジウム浴を使用して例1を繰り返した。パラジウムと燐酸のモル比は約1:1100であった。前記浴は1未満のpH値を有した。このパラジウム浴も例1と同じ有利な層特性を生じた。
Claims (12)
- 機能層が金属表面から出発してニッケルまたはニッケル合金層、およびパラジウム層を有し、これらがそれぞれ相当する被覆浴を使用して堆積される、支持体金属に機能層を被覆する方法において、ニッケルまたはニッケル合金層が還元剤の存在下で自触媒作用により、パラジウム層が還元剤の不在下で電荷交換により堆積され、その際パラジウム層を堆積する浴がパラジウム塩のほかに銅、タリウム、セレンおよびテルルの少なくとも1種の元素の無機化合物を含有することを特徴とする支持体金属に機能層を被覆する方法。
- 前記機能層が、さらに金または金合金層を有し、この金または金合金層が電荷交換または自触媒作用により堆積されることを特徴とする、請求項1に記載の方法。
- パラジウム層を堆積する被覆浴が電荷交換により硫酸パラジウム、硝酸パラジウム、塩化パラジウム、および酢酸パラジウムからなる群から選択される無機または有機アニオンを有する少なくとも1種のパラジウム塩および硫酸、硝酸、燐酸および塩酸からなる群から選択される少なくとも1種の無機酸からの酸マトリックスを有する請求項1または2記載の方法。
- パラジウムと無機酸のモル比が1:500〜1:2000である請求項3記載の方法。
- パラジウム層の堆積を室温〜70℃の被覆浴の温度および0〜4のpH値で行う請求項4記載の方法。
- パラジウム層の堆積を25〜50℃の被覆浴の温度で行う請求項5記載の方法。
- 1〜20分のパラジウムの被覆浴の作用時間を選択する請求項1から6までのいずれか1項記載の方法。
- 支持体金属が電子回路基板の導体路を形成し、銅または銅合金または他の導電性材料から選択される請求項1または2記載の方法。
- ニッケル合金がニッケル/硼素合金、ニッケル/燐合金、ニッケル/鉄/燐合金、ニッケル/燐/タングステン合金、ニッケル/コバルト/燐合金またはニッケル/タングステン合金である請求項1または2記載の方法。
- 電荷交換浴から99%より高い純度を有する金層が堆積され、更に自触媒法により所望の厚さに更に厚くする請求項2記載の方法。
- 請求項1から10までのいずれか1項記載の方法によりニッケル層に電荷交換によりパラジウム層を堆積するためのパラジウム浴において、パラジウム浴が以下の成分:
a)硫酸パラジウム、硝酸パラジウムおよび酢酸パラジウムからなる群から選択される無機または有機アニオンを有する少なくとも1種のパラジウム塩からのパラジウム10〜1000mg/l、
b)硫酸、硝酸および燐酸からなる群から選択される少なくとも1種の無機酸5〜500g/lおよび
c)銅、タリウム、セレンおよびテルルの無機化合物からの銅、タリウム、セレンおよびテルルの元素の少なくとも1種1〜200mg/l
を含有することを特徴とするニッケル層に電荷交換によりパラジウム層を堆積するためのパラジウム浴。 - 電解液の堆積効率および浴安定性を改良するために、官能性メルカプト基を有するまたは有しないヒドロキシカルボン酸およびアミン化合物からなる群から選択されるニッケルおよび/またはパラジウムのための錯体形成剤1〜200g/lを含有する請求項11記載のパラジウム浴。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005001388 | 2005-01-12 | ||
| DE102005001388.0 | 2005-01-12 | ||
| PCT/EP2006/000164 WO2006074902A2 (de) | 2005-01-12 | 2006-01-11 | Verfahren zur abscheidung von palladiumschichten und palladiumbad hierfür |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008527175A JP2008527175A (ja) | 2008-07-24 |
| JP4792045B2 true JP4792045B2 (ja) | 2011-10-12 |
Family
ID=36051528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007550745A Expired - Fee Related JP4792045B2 (ja) | 2005-01-12 | 2006-01-11 | パラジウム層を堆積する方法およびこのためのパラジウム浴 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20080138528A1 (ja) |
| EP (1) | EP1838897B1 (ja) |
| JP (1) | JP4792045B2 (ja) |
| KR (1) | KR20070118073A (ja) |
| CN (1) | CN101115865B (ja) |
| WO (1) | WO2006074902A2 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019069965A1 (ja) | 2017-10-06 | 2019-04-11 | 上村工業株式会社 | 無電解パラジウムめっき液 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010011269B4 (de) | 2009-11-10 | 2014-02-13 | Ami Doduco Gmbh | Verfahren zum Abscheiden einer für das Drahtbonden geeigneten Palladiumschicht auf Leiterbahnen einer Schaltungsträgerplatte und Verwendung eines Palladiumbades in dem Verfahren |
| CN102605359A (zh) * | 2011-01-25 | 2012-07-25 | 台湾上村股份有限公司 | 化学钯金镀膜结构及其制作方法、铜线或钯铜线接合的钯金镀膜封装结构及其封装工艺 |
| EP2581470B1 (en) * | 2011-10-12 | 2016-09-28 | ATOTECH Deutschland GmbH | Electroless palladium plating bath composition |
| EP2740818B1 (en) * | 2012-12-05 | 2016-03-30 | ATOTECH Deutschland GmbH | Method for manufacture of wire bondable and solderable surfaces on noble metal electrodes |
| CN106460182B (zh) * | 2014-04-10 | 2019-07-09 | 安美特德国有限公司 | 镀浴组合物和用于钯的无电镀覆的方法 |
| CN103898490B (zh) * | 2014-04-11 | 2017-03-22 | 深圳市荣伟业电子有限公司 | 高可靠性型化学镀钯液及无氰化学镍钯金加工方法 |
| CN105296974A (zh) * | 2015-08-27 | 2016-02-03 | 中国科学院兰州化学物理研究所 | 一种镀钯液及使用其在铜表面镀钯的方法 |
| CN107447208B (zh) * | 2017-06-23 | 2020-04-10 | 安庆师范大学 | 一种利用化学镀-置换制备Pd-Ni-Fe-P合金膜的方法 |
| CN116675443A (zh) * | 2023-06-29 | 2023-09-01 | 辽宁大学 | 一种利用太阳能直接沉积金属钯的方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1030545A (en) * | 1964-04-28 | 1966-05-25 | Int Nickel Ltd | Process and solutions for coating metals and alloys |
| US3385754A (en) * | 1965-02-11 | 1968-05-28 | West Virginia Pulp & Paper Co | Stock distribution system |
| US3684534A (en) * | 1970-07-06 | 1972-08-15 | Hooker Chemical Corp | Method for stabilizing palladium containing solutions |
| US4424241A (en) * | 1982-09-27 | 1984-01-03 | Bell Telephone Laboratories, Incorporated | Electroless palladium process |
| FR2652822B1 (fr) * | 1989-10-11 | 1993-06-11 | Onera (Off Nat Aerospatiale) | Bain a l'hydrazine pour le depot chimique de platine et/ou de palladium, et procede de fabrication d'un tel bain. |
| US5178745A (en) * | 1991-05-03 | 1993-01-12 | At&T Bell Laboratories | Acidic palladium strike bath |
| US5882736A (en) * | 1993-05-13 | 1999-03-16 | Atotech Deutschland Gmbh | palladium layers deposition process |
| GB9425031D0 (en) * | 1994-12-09 | 1995-02-08 | Alpha Metals Ltd | Printed circuit board manufacture |
| US6911230B2 (en) * | 2001-12-14 | 2005-06-28 | Shipley Company, L.L.C. | Plating method |
| US6709980B2 (en) * | 2002-05-24 | 2004-03-23 | Micron Technology, Inc. | Using stabilizers in electroless solutions to inhibit plating of fuses |
-
2006
- 2006-01-11 WO PCT/EP2006/000164 patent/WO2006074902A2/de not_active Ceased
- 2006-01-11 CN CN2006800043937A patent/CN101115865B/zh not_active Expired - Fee Related
- 2006-01-11 JP JP2007550745A patent/JP4792045B2/ja not_active Expired - Fee Related
- 2006-01-11 US US11/813,539 patent/US20080138528A1/en not_active Abandoned
- 2006-01-11 EP EP06700446.5A patent/EP1838897B1/de not_active Expired - Lifetime
- 2006-01-11 KR KR1020077018432A patent/KR20070118073A/ko not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019069965A1 (ja) | 2017-10-06 | 2019-04-11 | 上村工業株式会社 | 無電解パラジウムめっき液 |
| US11946144B2 (en) | 2017-10-06 | 2024-04-02 | C. Uyemura & Co., Ltd. | Electroless palladium plating solution |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006074902A3 (de) | 2006-08-31 |
| CN101115865A (zh) | 2008-01-30 |
| JP2008527175A (ja) | 2008-07-24 |
| KR20070118073A (ko) | 2007-12-13 |
| US20080138528A1 (en) | 2008-06-12 |
| HK1114131A1 (zh) | 2008-10-24 |
| EP1838897A2 (de) | 2007-10-03 |
| EP1838897B1 (de) | 2014-04-30 |
| CN101115865B (zh) | 2010-09-15 |
| WO2006074902A2 (de) | 2006-07-20 |
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