JP2017050407A - ボールボンディング用パラジウム(Pd)被覆銅ワイヤ - Google Patents
ボールボンディング用パラジウム(Pd)被覆銅ワイヤ Download PDFInfo
- Publication number
- JP2017050407A JP2017050407A JP2015172778A JP2015172778A JP2017050407A JP 2017050407 A JP2017050407 A JP 2017050407A JP 2015172778 A JP2015172778 A JP 2015172778A JP 2015172778 A JP2015172778 A JP 2015172778A JP 2017050407 A JP2017050407 A JP 2017050407A
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- Prior art keywords
- palladium
- wire
- layer
- stretched layer
- coated copper
- 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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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 title claims abstract description 588
- 229910052763 palladium Inorganic materials 0.000 title claims abstract description 198
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 239000010949 copper Substances 0.000 claims abstract description 88
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 53
- 239000011593 sulfur Substances 0.000 claims abstract description 53
- 229910052802 copper Inorganic materials 0.000 claims abstract description 52
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000011162 core material Substances 0.000 claims abstract description 37
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 30
- 239000011574 phosphorus Substances 0.000 claims abstract description 30
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910000881 Cu alloy Inorganic materials 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052796 boron Inorganic materials 0.000 claims abstract description 19
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010931 gold Substances 0.000 claims description 112
- 229910052737 gold Inorganic materials 0.000 claims description 57
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 55
- 238000007747 plating Methods 0.000 claims description 24
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 18
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 2
- 239000010419 fine particle Substances 0.000 abstract description 37
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009827 uniform distribution Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 107
- 239000011247 coating layer Substances 0.000 description 17
- 229910052782 aluminium Inorganic materials 0.000 description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 13
- 239000000654 additive Substances 0.000 description 11
- 230000000996 additive effect Effects 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- 238000009616 inductively coupled plasma Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 238000009713 electroplating Methods 0.000 description 6
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 5
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 5
- 229910003460 diamond Inorganic materials 0.000 description 5
- 239000010432 diamond Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 229910000765 intermetallic Inorganic materials 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- 238000001755 magnetron sputter deposition Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005491 wire drawing Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 238000007772 electroless plating Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910016570 AlCu Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000009841 combustion method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000000921 elemental analysis Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910001252 Pd alloy Inorganic materials 0.000 description 1
- DAZWMJDZEPDDGO-UHFFFAOYSA-N [O].[O].[Cu] Chemical compound [O].[O].[Cu] DAZWMJDZEPDDGO-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- -1 boron inorganic compound Chemical class 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- 238000004442 gravimetric analysis Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000002940 palladium Chemical class 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0227—Rods, wires
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L24/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/018—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of a noble metal or a noble metal alloy
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- C—CHEMISTRY; METALLURGY
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- C22C9/06—Alloys based on copper with nickel or cobalt as the next major constituent
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- C—CHEMISTRY; METALLURGY
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- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
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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
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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
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/50—Electroplating: Baths therefor from solutions of platinum group metals
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- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
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Abstract
Description
前記銅合金が0.1〜1.5質量%の白金(Pt)またはニッケル(Ni)を含有する銅合金であることが好ましい。また、前記パラジウム(Pd)延伸層が30ナノメートル(nm)以上300ナノメートル(nm)以下の理論的膜厚であることが好ましい。また、前記パラジウム(Pd)延伸層が湿式めっき浴からのめっき析出物であることが好ましい。また、前記パラジウム(Pd)延伸層がイオウ(S)またはリン(P)を共析したパラジウム(Pd)延伸層であることが好ましい。また、前記パラジウム(Pd)延伸層中にイオウ(S)、リン(P)、ホウ素(B)またはカーボン(C)の少なくとも1種または2種以上が合計で30〜700質量ppm(ただし、リン(P)が単独の場合は0.2〜800質量ppm)含有していることが好ましい。特に前記パラジウム(Pd)延伸層中にイオウ(S)を30〜300質量ppm含有することが好ましい。また、前記パラジウム(Pd)延伸層の表面側に前記イオウ(S)が濃縮され、芯材側では検出限界以下であることが好ましい。また、前記金(Au)極薄延伸層の深さ方向の膜厚よりも前記イオウ(S)の深さ方向の膜厚が長いことが好ましい。また、前記金(Au)極薄延伸層が3ナノメートル(nm)以下の理論的膜厚であることが好ましい。
パラジウム(Pd)−イオウ(S)非晶質合金の被覆層は次のようにして形成した。市販のパラジウム(Pd)電気めっき浴(日本エレクトロプレーティング株式会社製ADP700)に同社製ADP700添加剤を0.1g/L、0.005g/Lおよび0.15g/Lそれぞれ添加して、めっき浴中のイオウ(S)濃度を中濃度、低濃度および高濃度とした。この浴中で直径1.0mm銅線に電流密度0.75A/dm2で電流を流し、パラジウム(Pd)−イオウ(S)非晶質合金の被覆層を形成した。この3種類の被覆銅線に金(Au)をマグネトロンスパッタリングにより所定の厚さまで被覆した。
パラジウム(Pd)−リン(P)非晶質合金の被覆層は次のようにして形成した。市販のパラジウム(Pd)無電解めっき浴(日本エレクトロプレーティング株式会社製ADP700)に亜リン酸(H3PO3)を0.2g/L添加した。この浴中で直径1.0mm銅線に電流密度0.75A/dm2で電流を流しパラジウム(Pd)−リン(P)非晶質合金の被覆層を形成した。その後、実施例1と同様にして実施例4のボールボンディング用パラジウム(Pd)被覆銅ワイヤを製造した。
パラジウム(Pd)−カーボン(C)−ホウ素(B)含有合金の被覆層は次のようにして形成した。市販のパラジウム(Pd)電気めっき浴(日本エレクトロプレーティング株式会社製ADP700)に界面活性剤(日本エレクトロプレーティング株式会社製JSウェッター)を2mL/Lおよびホウ素無機化合物を所定量添加した。この浴中で直径1.0mm銅線に電流密度0.75A/dm2で電流を流しパラジウム(Pd)−カーボン(C)−ホウ素(B)非晶質合金の被覆層を形成した。その後、実施例1と同様にして実施例5のボールボンディング用パラジウム(Pd)被覆銅ワイヤを製造した。
実施例1〜実施例5のワイヤについて、ケイ・アンド・エス社製全自動リボンボンダーICONN型超音波装置にて、BGA基板上の厚さ400μmのSiチップ上の厚さ2μmのAl−1質量%Si−0.5質量%Cu合金パッド上に、EFO電流60mA、EFO時間144μsで34μmの溶融ボールを作製し、圧着径50μm、ループ長で2mmで1,000本ボンディングを行った。この際、チップ上のAl−1質量%Si−0.5質量%Cu合金パッドは隣り合うボンド部のみが電気的に接続されており、隣り合うワイヤ同士で電気的に1つの回路を形成しており、計500回路が形成される。その後、このBGA基板上のSiチップを市販のトランズファーモールド機(第一精工製株式会社、GPGP−PRO−LAB80)を使って樹脂封止した。
比較例1〜3のワイヤについて、実施例1〜5と同様にして、高温高湿(130℃×85RH)保持の前後での回路の電気抵抗値の変化を調べた。比較例1〜3のワイヤは、回路の電気抵抗値が上昇しており、ボンディングワイヤとして不適当であることがわかった。この結果を表1右欄に×印で示す。
Claims (11)
- 線径が10〜25μmのボールボンディング用パラジウム(Pd)被覆銅ワイヤであって、純銅(Cu)または銅(Cu)の純度が98質量%以上の銅合金からなる芯材上にパラジウム(Pd)延伸層が形成されたものにおいて、当該パラジウム(Pd)延伸層がイオウ(S)、リン(P)、ホウ素(B)またはカーボン(C)を含有するパラジウム(Pd)層であることを特徴とするボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 線径が10〜25μmのボールボンディング用パラジウム(Pd)被覆銅ワイヤであって、純銅(Cu)または銅(Cu)の純度が98質量%以上の銅合金からなる芯材上にパラジウム(Pd)延伸層および金(Au)極薄延伸層が形成されたものにおいて、当該パラジウム(Pd)延伸層がイオウ(S)、リン(P)、ホウ素(B)またはカーボン(C)を含有するパラジウム(Pd)層であることを特徴とするボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 前記銅合金が0.1〜1.5質量%の白金(Pt)またはニッケル(Ni)を含有する銅合金であることを特徴とする請求項1または請求項2に記載のボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 前記パラジウム(Pd)延伸層が30ナノメートル(nm)以上300ナノメートル(nm)以下の理論的膜厚であることを特徴とする請求項1または請求項2に記載のボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 前記パラジウム(Pd)延伸層が湿式めっき浴からのめっき析出物であることを特徴とする請求項1または請求項2に記載のボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 前記パラジウム(Pd)延伸層がイオウ(S)またはリン(P)を共析したパラジウム(Pd)延伸層であることを特徴とする請求項1または請求項2に記載のボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 前記パラジウム(Pd)延伸層中にイオウ(S)、リン(P)、ホウ素(B)またはカーボン(C)の少なくとも1種または2種以上が合計で30〜700質量ppm(ただし、リン(P)が単独の場合は0.2〜800質量ppm)含有していることを特徴とする請求項1または請求項2に記載のボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 前記パラジウム(Pd)延伸層中にイオウ(S)を30〜300質量ppm含有することを特徴とする請求項1または請求項2に記載のボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 前記パラジウム(Pd)延伸層の表面側に前記イオウ(S)が濃縮され、芯材側では検出限界以下であることを特徴とする請求項1または請求項2に記載のボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 前記金(Au)極薄延伸層の深さ方向の膜厚よりも前記イオウ(S)の深さ方向の膜厚が長いことを特徴とする請求項2に記載のボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
- 前記金(Au)極薄延伸層が3ナノメートル(nm)以下の理論的膜厚であることを特徴とする請求項2に記載のボールボンディング用パラジウム(Pd)被覆銅ワイヤ。
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TW105117533A TWI578422B (zh) | 2015-09-02 | 2016-06-03 | Ball wire with palladium (Pd) coated copper wire |
US15/248,196 US10195697B2 (en) | 2015-09-02 | 2016-08-26 | Palladium (Pd)-coated copper wire for ball bonding |
CN201610730700.5A CN106486450B (zh) | 2015-09-02 | 2016-08-26 | 球焊用钯被覆铜线 |
SG10201607305RA SG10201607305RA (en) | 2015-09-02 | 2016-09-01 | Palladium (pd)-coated copper wire for ball bonding |
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US20160189752A1 (en) * | 2014-12-30 | 2016-06-30 | Yaron Galant | Constrained system real-time capture and editing of video |
WO2016189752A1 (ja) * | 2015-05-26 | 2016-12-01 | 日鉄住金マイクロメタル株式会社 | 半導体装置用ボンディングワイヤ |
WO2017013796A1 (ja) * | 2015-07-23 | 2017-01-26 | 日鉄住金マイクロメタル株式会社 | 半導体装置用ボンディングワイヤ |
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CN106486450A (zh) | 2017-03-08 |
US10195697B2 (en) | 2019-02-05 |
TWI578422B (zh) | 2017-04-11 |
PH12016000308B1 (en) | 2018-03-12 |
CN106486450B (zh) | 2018-12-18 |
US20170057020A1 (en) | 2017-03-02 |
PH12016000308A1 (en) | 2018-03-12 |
TW201711117A (zh) | 2017-03-16 |
SG10201607305RA (en) | 2017-04-27 |
JP6002300B1 (ja) | 2016-10-05 |
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