JP2009206334A - 電子部品の製造方法 - Google Patents
電子部品の製造方法 Download PDFInfo
- Publication number
- JP2009206334A JP2009206334A JP2008047950A JP2008047950A JP2009206334A JP 2009206334 A JP2009206334 A JP 2009206334A JP 2008047950 A JP2008047950 A JP 2008047950A JP 2008047950 A JP2008047950 A JP 2008047950A JP 2009206334 A JP2009206334 A JP 2009206334A
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- JP
- Japan
- Prior art keywords
- film
- metal
- solder
- electronic component
- wet etching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000001039 wet etching Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 238000007747 plating Methods 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000010953 base metal Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 description 45
- 229910017770 Cu—Ag Inorganic materials 0.000 description 14
- 238000005530 etching Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 229910017944 Ag—Cu Inorganic materials 0.000 description 6
- 229910020836 Sn-Ag Inorganic materials 0.000 description 6
- 229910020988 Sn—Ag Inorganic materials 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 5
- 229910018731 Sn—Au Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 229910020888 Sn-Cu Inorganic materials 0.000 description 2
- 229910019204 Sn—Cu Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910002708 Au–Cu Inorganic materials 0.000 description 1
- 229910020816 Sn Pb Inorganic materials 0.000 description 1
- 229910020830 Sn-Bi Inorganic materials 0.000 description 1
- 229910020922 Sn-Pb Inorganic materials 0.000 description 1
- 229910018728 Sn—Bi Inorganic materials 0.000 description 1
- 229910008783 Sn—Pb Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- 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
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
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- H01L2924/01—Chemical elements
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Abstract
【解決手段】基板11上に第1の金属(Cu)からなる膜14を形成する工程と、第1の金属(Cu)膜からなる膜14を部分的に、第1の金属(Cu)の少なくとも一部が第2の金属(Ag)で置換された第2の金属(Ag)を含む膜14aに変換する工程と、第2の金属(Ag)を含む膜14a上に、第3の金属(Sn)からなる膜17を形成する工程と、第3の金属(Sn)からなる膜17をマスクとして第2の金属(Ag)を含む膜14a以外の第1の金属(Cu)からなる膜14をウエットエッチング法により除去する工程とを具備する電子部品の製造方法である。
【選択図】図1
Description
第1の実施の形態について説明する。図1(a)〜(g)は本実施形態に係る電子部品の製造方法の工程を示す断面図である。本実施の形態では、電子部品にSn−Ag−Cu三元系無鉛半田またはSn−Ag二元系無鉛半田からなるバンプを形成する場合を説明する。
上記第1の実施の形態では、Sn−Ag−Cu三元系無鉛半田またはSn−Ag二元系無鉛半田からなるバンプを形成する場合について説明したが、このような組成以外の半田からなるバンプを形成する場合も、材料や工程を適宜選択することによって広く適用可能であることはいうまでもない。
Claims (5)
- 基板上に第1の金属からなる膜を形成する工程と、
前記第1の金属からなる膜を部分的に、第1の金属の少なくとも一部が第2の金属で置換された第2の金属を含む膜に変換する工程と、
前記第2の金属を含む膜上に、第3の金属からなる膜を形成する工程と、
前記第3の金属からなる膜をマスクとして前記第2の金属を含む膜以外の第1の金属からなる膜をウエットエッチングにより除去する工程と
を具備することを特徴とする電子部品の製造方法。 - 前記第1の金属は、前記第2の金属より卑の金属であることを特徴とする請求項1記載の電子部品の製造方法。
- 前記第1の金属の少なくとも一部の第2の金属による置換は、めっき法により行われることを特徴とする請求項1または2記載の電子部品の製造方法。
- 前記第2の金属を含む膜が、第1の金属と第2の金属の合金または化合物からなることを特徴とする請求項1乃至3のいずれか1項記載の電子部品の製造方法。
- 前記第2の金属を含む膜が、略第2の金属からなることを特徴とする請求項1乃至3のいずれか1項記載の電子部品の製造方法。
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JP2008047950A JP4724192B2 (ja) | 2008-02-28 | 2008-02-28 | 電子部品の製造方法 |
TW098103292A TWI429790B (zh) | 2008-02-28 | 2009-02-02 | 製造電子零件之方法 |
US12/369,794 US20090218230A1 (en) | 2008-02-28 | 2009-02-12 | Method of producing electronic component |
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Cited By (8)
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WO2012101975A1 (ja) * | 2011-01-26 | 2012-08-02 | 三菱マテリアル株式会社 | Sn合金バンプの製造方法 |
US8298930B2 (en) | 2010-12-03 | 2012-10-30 | International Business Machines Corporation | Undercut-repair of barrier layer metallurgy for solder bumps and methods thereof |
JP2013038418A (ja) * | 2011-08-09 | 2013-02-21 | National Chiao Tung University | 金属間化合物の成長の阻害方法 |
JP2013531895A (ja) * | 2010-07-05 | 2013-08-08 | アトテツク・ドイチユラント・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | はんだ合金堆積物を基板上に形成する方法 |
CN103579149A (zh) * | 2012-08-01 | 2014-02-12 | 颀邦科技股份有限公司 | 半导体结构及其制造工艺 |
US9399822B2 (en) | 2013-09-17 | 2016-07-26 | Samsung Electronics Co., Ltd. | Liquid compositions and methods of fabricating a semiconductor device using the same |
JP2017037983A (ja) * | 2015-08-11 | 2017-02-16 | ローム株式会社 | 半導体装置およびその製造方法 |
KR101778498B1 (ko) | 2014-10-10 | 2017-09-13 | 이시하라 케미칼 가부시키가이샤 | 합금 범프의 제조방법 |
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TWI541964B (zh) * | 2010-11-23 | 2016-07-11 | 矽品精密工業股份有限公司 | 半導體基板之製法 |
US9142520B2 (en) | 2011-08-30 | 2015-09-22 | Ati Technologies Ulc | Methods of fabricating semiconductor chip solder structures |
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US9399822B2 (en) | 2013-09-17 | 2016-07-26 | Samsung Electronics Co., Ltd. | Liquid compositions and methods of fabricating a semiconductor device using the same |
KR101778498B1 (ko) | 2014-10-10 | 2017-09-13 | 이시하라 케미칼 가부시키가이샤 | 합금 범프의 제조방법 |
JP2017037983A (ja) * | 2015-08-11 | 2017-02-16 | ローム株式会社 | 半導体装置およびその製造方法 |
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TWI429790B (zh) | 2014-03-11 |
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JP4724192B2 (ja) | 2011-07-13 |
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