JP2015202507A - 高温はんだ合金 - Google Patents
高温はんだ合金 Download PDFInfo
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- JP2015202507A JP2015202507A JP2014082816A JP2014082816A JP2015202507A JP 2015202507 A JP2015202507 A JP 2015202507A JP 2014082816 A JP2014082816 A JP 2014082816A JP 2014082816 A JP2014082816 A JP 2014082816A JP 2015202507 A JP2015202507 A JP 2015202507A
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- solder alloy
- solder
- mass
- temperature solder
- temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—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
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L2224/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
- H01L2224/29001—Core members of the layer connector
- H01L2224/29099—Material
- H01L2224/291—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
- H01L2224/29101—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 less than 400°C
- H01L2224/29113—Bismuth [Bi] as principal constituent
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—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
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector 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
- H01L2224/32221—Disposition the layer connector 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 the body and the item being stacked
- H01L2224/32245—Disposition the layer connector 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 the body and the item being stacked the item being metallic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- 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
- H01L2224/48221—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 the body and the item being stacked
- H01L2224/48245—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 the body and the item being stacked the item being metallic
- H01L2224/48247—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 the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
Abstract
Description
本発明は、第1の実施形態によれば、高温はんだ合金であってスズ(Sn)を、0.05質量%〜0.3質量%含有し、残部は、ビスマス(Bi)及び不可避不純物からなる。不可避不純物とは、主として、銅(Cu)、ニッケル(Ni)、亜鉛(Zn)、鉄(Fe)、アルミニウム(Al)、ヒ素(As)、カドミウム(Cd)、銀(Ag)、金(Au)、インジウム(In)、リン(P)、鉛(Pb)などをいう。また、本発明による高温はんだ合金は、Pbを含まない鉛フリー高温はんだ合金である。
本発明は、第2の実施形態によれば、高温はんだ合金であってSnを、0.05質量%〜0.3質量%含有し、Agを、0.5質量%〜11.0質量%含有し、残部は、Bi及び不可避不純物からなる。第2実施形態による高温はんだ合金も、不可避不純物を除いて、Pbを含まない鉛フリー高温はんだ合金である。Agは、Biの濡れ性を改善することができるため、第1実施形態によるBi−Sn二元系はんだの特性をさらに改善することができる。
本発明の実施例に係るBi−Sn二元系高温はんだ合金、及び比較例のBiーGe系はんだを用いて、その接合特性を評価した。
本実験例は、Bi−Sn−Ag三元系高温はんだ合金の特性評価に代えて、Biはんだの特性を改善するAgの添加効果を調べたものである。Ag添加によりAg3Sn金属間化合物が形成すると低融点層(Sn層)が減少して、耐リフロー性の向上が予測され、Ag添加によって先の実施例で実証したBi−Sn高温はんだ合金の有利な特性を損なうことがないことは、合理的に推測することが可能である。
1a 高温はんだ合金層
1b Ni−Sn化合物層
2 Siチップ(SiCチップ)
20 Si層
21 Al−Si膜
22 Ni−P膜
23 Auめっき膜
3 基板
4 ワイヤボンディング
5 封止材
9 Snを含まないはんだ合金
9a はんだ合金層
9b Bi−Ni金属間化合物層
50 ボイド
100 半導体装置
200 SOP
300 QFP
400 プリント基板
Claims (6)
- スズを、0.05質量%〜0.3質量%含有し、残部は、ビスマス及び不可避不純物からなる高温はんだ合金。
- 前記スズを、0.1質量%〜0.3質量%含有する、請求項1に記載の高温はんだ合金。
- さらに、銀を、0.5質量%〜11質量%含有する、請求項1または2のいずれかに記載の高温はんだ合金。
- 前記銀を、0.5質量%〜2.5質量%含有する、請求項3に記載の高温はんだ合金。
- 表面実装部品の接合に用いるための、請求項1〜4のいずれかに記載の高温はんだ合金。
- 金属基板とSiチップもしくはSiCチップとを、請求項1〜5のいずれかに記載の高温はんだ合金で接合してなる接合体を備えてなる半導体装置。
Priority Applications (1)
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JP2014082816A JP6543890B2 (ja) | 2014-04-14 | 2014-04-14 | 高温はんだ合金 |
Applications Claiming Priority (1)
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JP2014082816A JP6543890B2 (ja) | 2014-04-14 | 2014-04-14 | 高温はんだ合金 |
Publications (2)
Publication Number | Publication Date |
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JP2015202507A true JP2015202507A (ja) | 2015-11-16 |
JP6543890B2 JP6543890B2 (ja) | 2019-07-17 |
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JP2014082816A Active JP6543890B2 (ja) | 2014-04-14 | 2014-04-14 | 高温はんだ合金 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107041081A (zh) * | 2017-06-02 | 2017-08-11 | 奇酷互联网络科技(深圳)有限公司 | Pcb表面贴装方法和印刷电路板 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001205477A (ja) * | 2000-01-25 | 2001-07-31 | Murata Mfg Co Ltd | 半田付け構造ならびに貫通型セラミックコンデンサ |
JP2001353590A (ja) * | 2000-06-12 | 2001-12-25 | Murata Mfg Co Ltd | はんだ組成物およびはんだ付け物品 |
JP2004528992A (ja) * | 2001-06-12 | 2004-09-24 | イーエスイーシー トレイディング エスエー | 無鉛ろう材 |
JP2004533327A (ja) * | 2001-05-28 | 2004-11-04 | ハネウエル・インターナシヨナル・インコーポレーテツド | 高温鉛フリーハンダ用組成物、方法およびデバイス |
JP2005313230A (ja) * | 2004-03-29 | 2005-11-10 | Kiyohito Ishida | 高温実装用接合材料 |
WO2007055308A1 (ja) * | 2005-11-11 | 2007-05-18 | Senju Metal Industry Co., Ltd. | ソルダペーストとはんだ継手 |
JP2010129664A (ja) * | 2008-11-26 | 2010-06-10 | Fujitsu Ltd | 電子装置及びその製造方法 |
JP2011014705A (ja) * | 2009-07-01 | 2011-01-20 | Hitachi Ltd | 半導体装置および半導体装置の製造方法 |
JP2015098046A (ja) * | 2013-11-19 | 2015-05-28 | 住友金属鉱山株式会社 | Bi基はんだ合金、並びにそれを用いた電子部品のボンディング方法および電子部品実装基板 |
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2014
- 2014-04-14 JP JP2014082816A patent/JP6543890B2/ja active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001205477A (ja) * | 2000-01-25 | 2001-07-31 | Murata Mfg Co Ltd | 半田付け構造ならびに貫通型セラミックコンデンサ |
JP2001353590A (ja) * | 2000-06-12 | 2001-12-25 | Murata Mfg Co Ltd | はんだ組成物およびはんだ付け物品 |
JP2004533327A (ja) * | 2001-05-28 | 2004-11-04 | ハネウエル・インターナシヨナル・インコーポレーテツド | 高温鉛フリーハンダ用組成物、方法およびデバイス |
JP2004528992A (ja) * | 2001-06-12 | 2004-09-24 | イーエスイーシー トレイディング エスエー | 無鉛ろう材 |
JP2005313230A (ja) * | 2004-03-29 | 2005-11-10 | Kiyohito Ishida | 高温実装用接合材料 |
WO2007055308A1 (ja) * | 2005-11-11 | 2007-05-18 | Senju Metal Industry Co., Ltd. | ソルダペーストとはんだ継手 |
JP2010129664A (ja) * | 2008-11-26 | 2010-06-10 | Fujitsu Ltd | 電子装置及びその製造方法 |
JP2011014705A (ja) * | 2009-07-01 | 2011-01-20 | Hitachi Ltd | 半導体装置および半導体装置の製造方法 |
JP2015098046A (ja) * | 2013-11-19 | 2015-05-28 | 住友金属鉱山株式会社 | Bi基はんだ合金、並びにそれを用いた電子部品のボンディング方法および電子部品実装基板 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107041081A (zh) * | 2017-06-02 | 2017-08-11 | 奇酷互联网络科技(深圳)有限公司 | Pcb表面贴装方法和印刷电路板 |
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