JP5497360B2 - 半導体用ボンディングワイヤー - Google Patents
半導体用ボンディングワイヤー Download PDFInfo
- Publication number
- JP5497360B2 JP5497360B2 JP2009177315A JP2009177315A JP5497360B2 JP 5497360 B2 JP5497360 B2 JP 5497360B2 JP 2009177315 A JP2009177315 A JP 2009177315A JP 2009177315 A JP2009177315 A JP 2009177315A JP 5497360 B2 JP5497360 B2 JP 5497360B2
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- Prior art keywords
- wire
- palladium
- silver
- bonding
- 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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- 239000004065 semiconductor Substances 0.000 title claims description 19
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 211
- 229910052763 palladium Inorganic materials 0.000 claims description 99
- 229910052709 silver Inorganic materials 0.000 claims description 93
- 239000004332 silver Substances 0.000 claims description 92
- 239000011247 coating layer Substances 0.000 claims description 68
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 61
- 239000010949 copper Substances 0.000 claims description 61
- 229910052802 copper Inorganic materials 0.000 claims description 60
- 239000010410 layer Substances 0.000 claims description 60
- 229910045601 alloy Inorganic materials 0.000 claims description 49
- 239000000956 alloy Substances 0.000 claims description 49
- 239000013078 crystal Substances 0.000 claims description 41
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 18
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 89
- 238000000034 method Methods 0.000 description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 31
- 230000000694 effects Effects 0.000 description 28
- 238000004458 analytical method Methods 0.000 description 21
- 239000000203 mixture Substances 0.000 description 21
- 230000003647 oxidation Effects 0.000 description 18
- 238000007254 oxidation reaction Methods 0.000 description 18
- 239000010931 gold Substances 0.000 description 16
- 239000012298 atmosphere Substances 0.000 description 15
- 229910052737 gold Inorganic materials 0.000 description 15
- 230000037303 wrinkles Effects 0.000 description 15
- 229910052757 nitrogen Inorganic materials 0.000 description 14
- 230000006378 damage Effects 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 13
- 238000005491 wire drawing Methods 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000654 additive Substances 0.000 description 9
- 230000000996 additive effect Effects 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 9
- 238000002844 melting Methods 0.000 description 9
- 230000008018 melting Effects 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 238000009713 electroplating Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000007747 plating Methods 0.000 description 8
- 229910001316 Ag alloy Inorganic materials 0.000 description 7
- 229910001252 Pd alloy Inorganic materials 0.000 description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 230000007774 longterm Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000005275 alloying Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 229910000510 noble metal Inorganic materials 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 4
- 229910052711 selenium Inorganic materials 0.000 description 4
- 238000010301 surface-oxidation reaction Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000001887 electron backscatter diffraction Methods 0.000 description 3
- 238000004453 electron probe microanalysis Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 125000003821 2-(trimethylsilyl)ethoxymethyl group Chemical group [H]C([H])([H])[Si](C([H])([H])[H])(C([H])([H])[H])C([H])([H])C(OC([H])([H])[*])([H])[H] 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910002555 FeNi Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- CQTFXFSDRFCIRT-UHFFFAOYSA-N copper palladium silver Chemical compound [Pd][Cu][Ag] CQTFXFSDRFCIRT-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 229910002058 ternary alloy Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
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- 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
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- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
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- H01L2224/05617—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 400°C and less than 950°C
- H01L2224/05624—Aluminium [Al] as principal constituent
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- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
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Landscapes
- Engineering & Computer Science (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Wire Bonding (AREA)
Description
Claims (4)
- 銅又は銅合金から成る芯線と、
該芯線の表面に、10〜200nmの厚さで形成されたパラジウムを含む被覆層と、
該被覆層の表面に、3〜30nmの厚さで形成された銀とパラジウムとの合金層と、を有し、
前記合金層中の銀の濃度が10体積%以上70体積%以下であり、
前記合金層の表面結晶粒の内、<100>結晶方位の伸線方向に対する傾きが15度以下である結晶粒の面積が、50%以上100%以下であることを特徴とする半導体用ボンディングワイヤー。 - 前記ボンディングワイヤーの表面のマイヤー硬度が、0.2〜2.0GPaの範囲であることを特徴とする請求項1に記載の半導体用ボンディングワイヤー。
- 前記合金層中の銀の濃度が、20体積%以上70体積%以下であることを特徴とする請求項1又は2に記載の半導体用ボンディングワイヤー。
- 前記芯線が、B、P、Seの内の少なくとも1種を総計で5〜300質量ppm含有することを特徴とする請求項1〜3のいずれか1項に記載の半導体用ボンディングワイヤー。
Priority Applications (9)
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JP2009177315A JP5497360B2 (ja) | 2009-07-30 | 2009-07-30 | 半導体用ボンディングワイヤー |
CN201510431505.8A CN105023902B (zh) | 2009-07-30 | 2010-07-16 | 半导体用接合线 |
EP10804273.0A EP2461358B1 (en) | 2009-07-30 | 2010-07-16 | Bonding wire for semiconductor |
US13/384,819 US8742258B2 (en) | 2009-07-30 | 2010-07-16 | Bonding wire for semiconductor |
CN201080019191.6A CN102422404B (zh) | 2009-07-30 | 2010-07-16 | 半导体用接合线 |
MYPI2012000003A MY164643A (en) | 2009-07-30 | 2010-07-16 | Bonding wire for semiconductor |
SG2012004065A SG178063A1 (en) | 2009-07-30 | 2010-07-16 | Bonding wire for semiconductor |
KR1020107028435A KR101707244B1 (ko) | 2009-07-30 | 2010-07-16 | 반도체용 본딩 와이어 |
PCT/JP2010/062082 WO2011013527A1 (ja) | 2009-07-30 | 2010-07-16 | 半導体用ボンディングワイヤー |
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JP5978587B2 (ja) * | 2011-10-13 | 2016-08-24 | 日立化成株式会社 | 半導体パッケージ及びその製造方法 |
SG10201408305YA (en) * | 2014-12-11 | 2016-07-28 | Heraeus Deutschland Gmbh & Co Kg | Bonding wire for a semiconductor device |
TWI628671B (zh) * | 2015-05-26 | 2018-07-01 | 日鐵住金新材料股份有限公司 | Bonding wire for semiconductor device |
JP5937770B1 (ja) * | 2015-05-26 | 2016-06-22 | 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 |
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 |
WO2016203659A1 (ja) | 2015-06-15 | 2016-12-22 | 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 |
US10622531B2 (en) | 2017-09-28 | 2020-04-14 | Nichia Corporation | Light-emitting device |
JP2019111751A (ja) * | 2017-12-25 | 2019-07-11 | 東芝ホクト電子株式会社 | サーマルプリントヘッドおよびサーマルプリンタ |
JP2019111752A (ja) * | 2017-12-25 | 2019-07-11 | 東芝ホクト電子株式会社 | サーマルプリントヘッドおよびサーマルプリンタ |
US10985130B2 (en) | 2018-09-21 | 2021-04-20 | Nippon Steel Chemical & Material Co., Ltd. | Cu alloy bonding wire for semiconductor device |
JP6651065B1 (ja) * | 2018-09-21 | 2020-02-19 | 日鉄ケミカル&マテリアル株式会社 | 半導体装置用Cu合金ボンディングワイヤ |
JP6487108B1 (ja) * | 2018-11-26 | 2019-03-20 | 田中電子工業株式会社 | パラジウム被覆銅ボンディングワイヤ及びその製造方法 |
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JP2005268771A (ja) * | 2004-02-20 | 2005-09-29 | Nippon Steel Corp | 半導体装置用金ボンディングワイヤ及びその接続方法 |
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