WO2006049024A1 - 高温鉛フリーはんだおよび半導体素子収納用パッケージ - Google Patents
高温鉛フリーはんだおよび半導体素子収納用パッケージ Download PDFInfo
- Publication number
- WO2006049024A1 WO2006049024A1 PCT/JP2005/019472 JP2005019472W WO2006049024A1 WO 2006049024 A1 WO2006049024 A1 WO 2006049024A1 JP 2005019472 W JP2005019472 W JP 2005019472W WO 2006049024 A1 WO2006049024 A1 WO 2006049024A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature
- mass
- solder
- lead
- free solder
- 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.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C5/00—Alloys based on noble metals
- C22C5/02—Alloys based on gold
-
- 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
- B23K35/26—Selection of soldering or welding materials proper with the principal constituent melting at less than 400°C
- B23K35/262—Sn as the principal constituent
-
- 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°C
- B23K35/3006—Ag as the principal constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C13/00—Alloys based on tin
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W76/00—Containers; Fillings or auxiliary members therefor; Seals
- H10W76/60—Seals
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
- H10W70/67—Insulating or insulated package substrates; Interposers; Redistribution layers characterised by their insulating layers or insulating parts
- H10W70/68—Shapes or dispositions thereof
- H10W70/682—Shapes or dispositions thereof comprising holes having chips therein
Definitions
- the present invention relates to a lead-free high-temperature solder and a package for housing a semiconductor element using the high-temperature solder.
- high-temperature solder is used for assembling a package for housing a semiconductor element or soldering an electronic component that is exposed to a high temperature when an electronic device is used.
- a semiconductor element storage package (hereinafter simply referred to as a package) is a semiconductor element 2 that is stored on the inner bottom surface of a container body 1 having a concave shape. These electrodes are electrically connected by the container body 1 and the bonding wire 4.
- a lid member 3 is joined to the container main body 1 in an airtight state by a high temperature solder 5. Electronic components that use packages in this way include SAW filters and crystal resonators used in mobile phones.
- the container body of the knocker is made of alumina ceramic, the joint is tungsten metalized, and gold plating is applied on it.
- the lid member is made of materials such as Kovar, 42 alloy, and stainless steel.
- the reason why the container body and the lid member are bonded in an airtight state with high temperature is to prevent the semiconductor element from being corroded or oxidized by moisture or oxygen in the air, and is made of a package. This is because when the electronic components are mounted on a printed circuit board with general solder, the encapsulated solder must not remelt.
- Electronic components that are exposed to high temperatures when using electronic devices are those that generate heat when energized, such as power transistors and coil components.
- the soldered portion melts when exposed to high temperatures due to heat generation, and even if it does not melt, the joint strength becomes weak and a little external impact or
- High-temperature solder has no established definition, but here it refers to alloys with a solidus temperature of 232 ° C or higher, the melting point of Sn.
- a solder alloy for mounting electronic components to a printed circuit board has the lowest melting point among Sn-Pb alloys, and a solder alloy having a eutectic composition of 63Sn-Pb or close to the eutectic composition.
- Sn-Pb solder alloy is used, and the high-temperature solder alloy used at this time is mainly composed of Pb such as Pb-5Sn and Pb-10Sn.
- the current lead-free solder contains Sn as a main component, and contains metal elements such as Ag, Cu, Bi, In, Zn, Sb, Co, Cr, Ni, Mo, Fe, Ge, Ga, and P.
- Lead-free solder that is commonly used in electronic equipment is Sn-0.7Cu (melting point: 227 ° C), Sn-3.5Ag (melting point: 221 ° C), Sn-3Ag-0.5 Cu (melting point: 217 ° C) and the like.
- the high-temperature solder and the ability to be lead-free are based on Sn.
- high melting point metals such as Ag, Cu, Sb, Ni, Cr, and Mo
- a large amount may be added to Sn.
- a refractory metal is added to Sn while pressing, the liquidus temperature rises, but the solidus temperature cannot be raised above 232 ° C. Therefore, at present, Sn-based lead-free high-temperature solder has not existed. Therefore, Au-Sn alloy has been used as a lead-free high-temperature solder for packaging.
- Au and Sn are eutectic with a composition of Au 80% by mass and Sn 20% by mass, and their melting point is 278 ° C.
- This Au-Sn eutectic alloy is used when mounting electronic components with lead-free solder containing Sn as the main component. It is currently used widely for packages because it is optimal in terms of temperature for reeling cages and has good compatibility with the gold plating of the container body.
- Patent Documents 1 to 3 [0009]
- the solidus temperature must be at least 50 ° C higher than the liquidus temperature of lead-free solder used for mounting. Nah ...
- soldering temperature is the liquidus temperature of the solder + 20-50 ° C, so the high-temperature solder used in the knocker is the soldering temperature. This is because it must not be remelted.
- lead-free solder containing Sn as its main component has a liquidus temperature of around 220 ° C. Therefore, when this lead-free solder is used for mounting electronic components, the solidus temperature is low. Must be at least 270 ° C.
- the Au-Sn eutectic alloy used for the assembly of conventional packages has a solidus temperature of 278 ° C, which makes it suitable when using lead-free solder containing Sn as the main component for mounting. .
- Patent Document 1 Japanese Patent Laid-Open No. 15-224223
- Patent Document 2 JP 2000-68396 A
- Patent Document 3 Japanese Patent Laid-Open No. 2001-345394
- the package lid member and the container main body may be peeled off frequently during use or transportation.
- the high-temperature solder used for the joint part must have excellent mechanical strength.
- the conventional lead-free high-temperature solder has sufficient mechanical strength.
- soldering temperature using these lead-free solders is 240 to 270 ° C. Therefore, in order to withstand the soldering temperature of these lead-free solders, the solidus temperature of the high temperature solder is at least 270 ° C or higher.
- An object of the present invention is to provide a lead-free solder high-temperature solder having a solidus temperature of 270 ° C or higher, which is sufficient if the amount of Au added is smaller than that of a conventional Au-Sn eutectic alloy.
- Another object of the present invention is to provide a package in which the joint between the container main body and the lid member is excellent in heat cycle resistance and mechanical strength.
- the present inventors have found that when the addition amount of Au is smaller than that of a conventional Au-Sn eutectic alloy, the solidus temperature is decreased.
- the composition was such that the liquidus temperature was not higher than 270 ° C and the liquidus temperature was not higher than 420 ° C, and as a result, Ag-Au-Sn alloys were suitable.
- a solidus temperature suitable for high-temperature solder was obtained, and the present invention was completed by finding that the alloy was excellent in heat cycle resistance and mechanical strength.
- the invention of claim 1 is a high-temperature lead-free solder characterized by comprising Ag2 to 12 mass%, Au40 to 55 mass%, and the balance Sn.
- the invention of claim 2 is that Agll mass%, Au40 mass%, the balance Sn, Agll mass%, Au55 mass It is a high-temperature lead-free solder characterized by having an alloy composition in a range surrounded by three composition regions:%, balance Sn, Ag 2 mass%, Au 50 mass%, and balance Sn.
- the invention of claim 3 contains, in addition to the high-temperature lead-free solder according to claims 1-2, at least 5% by mass in total of at least one selected from Cu, In, Bi, Sb, and Ge. High temperature lead-free solder.
- the invention of claim 4 further includes a lanthanoid in the high temperature lead-free solder according to claims 1 to 3.
- High-temperature lead-free solder containing 0.5% by mass or less.
- the container body and the lid member are joined with the high-temperature lead-free solder according to claims 1 to 4, and the joint has a heat cycle resistance of 1000 or more.
- This is a package for storing semiconductor elements.
- the high-temperature solder according to the present invention can reduce the cost of electronic components because the amount of expensive Au added is less than that of a conventional Au-Sn eutectic alloy, and the package according to the present invention is a container.
- the joint between the main body and the lid member has high heat cycle resistance and high mechanical strength, so it has excellent reliability that can function stably for many years.
- the high-temperature solder according to the present invention has an addition amount of Ag of less than 2% by mass, and the solid-phase temperature is lowered to 270 ° C or less, which is a heat resistant temperature target value. As the liquid phase temperature rises and the working temperature rises, it exceeds the heat resistance temperature of the parts. If the added amount of Au is less than 40% by mass, the solid phase temperature and the heat-resistant temperature will decrease as described above, and the target characteristics will not be achieved. However, even if the added amount exceeds 55% by mass, the price will increase. There is little gain for temperature or strength characteristics due to force. Sn functions to improve wettability and adjust the solidus temperature, and at least 30% by mass or more is necessary to perform these functions.
- the optimum composition of the high-temperature solder of the present invention is surrounded by Agll% by mass, Au40% by mass, remaining Sn and Agll% by mass, Au55% by mass, remaining Sn, Ag2% by mass, Au50% by mass, and remaining Sn It is the part that was.
- This enclosed composition has better heat cycle resistance and mechanical strength. Become good.
- Ag-Au-Sn high-temperature solder contains a total of 5 mass% of one or more selected from Cu, In, Bi, Sb, and Ge for the purpose of improving mechanical strength. May be.
- These elements for improving mechanical strength produce intermetallic compounds with Ag, Au, Sn, etc., and the intermetallic compounds are dispersed in the matrix to improve the mechanical strength.
- the mechanical strength improving elements are added in an amount of more than 5% by mass, the solidus temperature falls below 270 ° C.
- lanthanoid 0.5% by mass or less of lanthanoid may be further added to the Ag—Au—Sn alloy or an alloy obtained by adding the mechanical strength improving element to the alloy.
- the amount of lanthanide added exceeds 0.5 mass%, solderability will be impaired.
- the lanthanide also improves the mechanical strength of the high-temperature solder to refine the matrix itself.
- the lanthanoid used in the present invention is a rare earth element having an atomic number of 57 to 71, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu It is.
- Table 1 shows examples and comparative examples of the present invention.
- the heat cycle resistance was carried out according to JIS C 0025. However, the low temperature was 55 ° C, the high temperature was + 150 ° C, and the low temperature and high temperature were maintained for 30 minutes.
- the evaluation criterion for heat cycle resistance is to measure the number of times until the end point is reached when the joint between the lid member and the container body cracks or peels off. If the heat cycle is 1000 times or more, there is no problem when soldering the knocker.
- the mechanical strength was measured according to JIS Z 3198-2. When the mechanical strength of the solder alloy of the present invention is 50 MPa or more, it can sufficiently withstand ordinary impacts even when used for soldering a mopile electronic device such as a mobile phone or a notebook computer.
- the high-temperature solder of the present invention has a liquidus temperature of 270 ° C or higher, so when electronic components are mounted with lead-free solder containing Sn as the main component, It is suitable for soldering electronic components that are exposed to high temperatures during assembly and use.
- the bonded portion does not crack or peel off and has excellent mechanical strength, so that it can exhibit a reliable function over a long period of time. .
- FIG. 1 is a cross-sectional view of a package.
- the present invention has been described as having excellent effects in assembly of a knocker and high-temperature environments, the high-temperature solder of the present invention can be used in any place where conventional high-temperature solder is used. is there.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006543117A JP4305511B2 (ja) | 2004-11-01 | 2005-10-24 | 高温鉛フリーはんだおよび半導体素子収納用パッケージ |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-317709 | 2004-11-01 | ||
| JP2004317709 | 2004-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006049024A1 true WO2006049024A1 (ja) | 2006-05-11 |
Family
ID=36319038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/019472 Ceased WO2006049024A1 (ja) | 2004-11-01 | 2005-10-24 | 高温鉛フリーはんだおよび半導体素子収納用パッケージ |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4305511B2 (ja) |
| CN (1) | CN101048521A (ja) |
| WO (1) | WO2006049024A1 (ja) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008080392A (ja) * | 2006-09-29 | 2008-04-10 | Toshiba Corp | 接合体および接合方法 |
| CN102615447A (zh) * | 2012-03-26 | 2012-08-01 | 广东工业大学 | 一种锡基无铅焊料及其制备方法 |
| JP2012206142A (ja) * | 2011-03-29 | 2012-10-25 | Nichia Corp | 半田及び半田を用いた半導体装置並びに半田付け方法 |
| JP2014018859A (ja) * | 2012-07-24 | 2014-02-03 | Nippon Genma:Kk | はんだ |
| US20140097232A1 (en) * | 2011-06-16 | 2014-04-10 | Fujikura Ltd. | Bonding method and production method |
| US8763884B2 (en) | 2006-09-29 | 2014-07-01 | Kabushiki Kaisha Toshiba | Joint with first and second members with a joining layer located therebetween containing Sn metal and another metallic material; methods for forming the same joint |
| JP2015098048A (ja) * | 2013-11-19 | 2015-05-28 | 住友金属鉱山株式会社 | Pbを含まないZn−Ge系はんだ合金およびそれを用いた電子部品 |
| WO2015087588A1 (ja) * | 2013-12-10 | 2015-06-18 | 住友金属鉱山株式会社 | Au-Sn-Ag系はんだ合金並びにこのAu-Sn-Ag系はんだ合金を用いて封止された電子部品及び電子部品搭載装置 |
| JP2016068091A (ja) * | 2014-09-26 | 2016-05-09 | 住友金属鉱山株式会社 | ボール状Au−Sn−Ag系はんだ合金並びにこのボール状Au−Sn−Ag系はんだ合金を用いて封止された電子部品及び電子部品搭載装置 |
| JP2016068123A (ja) * | 2014-09-30 | 2016-05-09 | 住友金属鉱山株式会社 | Au−Sn−Ag系はんだ合金及びこれを用いて封止若しくは接合された電子機器並びに該電子機器を搭載した電子装置 |
| JP2016073979A (ja) * | 2014-10-02 | 2016-05-12 | 住友金属鉱山株式会社 | ボール状Au−Sn−Ag系はんだ合金並びにこのボール状Au−Sn−Ag系はんだ合金を用いて封止された電子部品及び電子部品搭載装置 |
| WO2016075983A1 (ja) * | 2014-11-11 | 2016-05-19 | 住友金属鉱山株式会社 | Au-Sn-Ag系はんだ合金とはんだ材料並びにこのはんだ合金又ははんだ材料を用いて封止された電子部品及び電子部品搭載装置 |
| WO2016170906A1 (ja) * | 2015-04-22 | 2016-10-27 | 住友金属鉱山株式会社 | Au-Sn-Ag系はんだペースト並びにこのAu-Sn-Ag系はんだペーストを用いて接合もしくは封止された電子部品 |
| EP3354633A1 (en) * | 2017-01-31 | 2018-08-01 | Shin-Etsu Chemical Co., Ltd. | Synthetic quartz glass lid precursor, synthetic quartz glass lid, and preparation methods thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI436710B (zh) * | 2011-02-09 | 2014-05-01 | 村田製作所股份有限公司 | Connection structure |
| CN102368681A (zh) * | 2011-09-22 | 2012-03-07 | 武汉昊昱微电子股份有限公司 | 一种晶振焊接封装方法 |
| JP2015157307A (ja) * | 2014-02-25 | 2015-09-03 | 住友金属鉱山株式会社 | Au−Sn−Ag系はんだ合金並びにこのAu−Sn−Ag系はんだ合金を用いて封止された電子部品及び電子部品搭載装置 |
| JP2018069243A (ja) * | 2015-03-05 | 2018-05-10 | 住友金属鉱山株式会社 | Au−Sn−Ag系はんだペースト並びにこのAu−Sn−Ag系はんだペーストを用いて接合もしくは封止された電子部品 |
| CN113369745B (zh) * | 2021-05-21 | 2022-11-04 | 北京理工大学 | 四元共晶焊料及制备方法、以及焊料成分 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001009587A (ja) * | 1999-04-27 | 2001-01-16 | Nec Kansai Ltd | ろう材,ろう付け部材およびろう付け方法 |
| JP2004261863A (ja) * | 2003-01-07 | 2004-09-24 | Senju Metal Ind Co Ltd | 鉛フリーはんだ |
-
2005
- 2005-10-24 WO PCT/JP2005/019472 patent/WO2006049024A1/ja not_active Ceased
- 2005-10-24 JP JP2006543117A patent/JP4305511B2/ja not_active Expired - Fee Related
- 2005-10-24 CN CNA2005800364647A patent/CN101048521A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001009587A (ja) * | 1999-04-27 | 2001-01-16 | Nec Kansai Ltd | ろう材,ろう付け部材およびろう付け方法 |
| JP2004261863A (ja) * | 2003-01-07 | 2004-09-24 | Senju Metal Ind Co Ltd | 鉛フリーはんだ |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008080392A (ja) * | 2006-09-29 | 2008-04-10 | Toshiba Corp | 接合体および接合方法 |
| US8763884B2 (en) | 2006-09-29 | 2014-07-01 | Kabushiki Kaisha Toshiba | Joint with first and second members with a joining layer located therebetween containing Sn metal and another metallic material; methods for forming the same joint |
| JP2012206142A (ja) * | 2011-03-29 | 2012-10-25 | Nichia Corp | 半田及び半田を用いた半導体装置並びに半田付け方法 |
| US20140097232A1 (en) * | 2011-06-16 | 2014-04-10 | Fujikura Ltd. | Bonding method and production method |
| CN102615447A (zh) * | 2012-03-26 | 2012-08-01 | 广东工业大学 | 一种锡基无铅焊料及其制备方法 |
| JP2014018859A (ja) * | 2012-07-24 | 2014-02-03 | Nippon Genma:Kk | はんだ |
| JP2015098048A (ja) * | 2013-11-19 | 2015-05-28 | 住友金属鉱山株式会社 | Pbを含まないZn−Ge系はんだ合金およびそれを用いた電子部品 |
| JP2015131340A (ja) * | 2013-12-10 | 2015-07-23 | 住友金属鉱山株式会社 | Au−Sn−Ag系はんだ合金並びにこのAu−Sn−Ag系はんだ合金を用いて封止された電子部品及び電子部品搭載装置 |
| WO2015087588A1 (ja) * | 2013-12-10 | 2015-06-18 | 住友金属鉱山株式会社 | Au-Sn-Ag系はんだ合金並びにこのAu-Sn-Ag系はんだ合金を用いて封止された電子部品及び電子部品搭載装置 |
| JP2016068091A (ja) * | 2014-09-26 | 2016-05-09 | 住友金属鉱山株式会社 | ボール状Au−Sn−Ag系はんだ合金並びにこのボール状Au−Sn−Ag系はんだ合金を用いて封止された電子部品及び電子部品搭載装置 |
| JP2016068123A (ja) * | 2014-09-30 | 2016-05-09 | 住友金属鉱山株式会社 | Au−Sn−Ag系はんだ合金及びこれを用いて封止若しくは接合された電子機器並びに該電子機器を搭載した電子装置 |
| JP2016073979A (ja) * | 2014-10-02 | 2016-05-12 | 住友金属鉱山株式会社 | ボール状Au−Sn−Ag系はんだ合金並びにこのボール状Au−Sn−Ag系はんだ合金を用いて封止された電子部品及び電子部品搭載装置 |
| WO2016075983A1 (ja) * | 2014-11-11 | 2016-05-19 | 住友金属鉱山株式会社 | Au-Sn-Ag系はんだ合金とはんだ材料並びにこのはんだ合金又ははんだ材料を用いて封止された電子部品及び電子部品搭載装置 |
| JP2016087681A (ja) * | 2014-11-11 | 2016-05-23 | 住友金属鉱山株式会社 | Au−Sn−Ag系はんだ合金とはんだ材料並びにこのはんだ合金又ははんだ材料を用いて封止された電子部品及び電子部品搭載装置 |
| EP3219432A4 (en) * | 2014-11-11 | 2018-05-23 | Sumitomo Metal Mining Co., Ltd. | Au-sn-ag solder alloy and solder material, electronic component sealed using said solder alloy or solder material, and mounted-electronic component device |
| US10589387B2 (en) | 2014-11-11 | 2020-03-17 | Sumitomo Metal Mining Co., Ltd. | Au—Sn—Ag-based solder alloy and solder material, electronic component sealed with the same Au—Sn—Ag based solder alloy or solder material, and electronic component mounting device |
| WO2016170906A1 (ja) * | 2015-04-22 | 2016-10-27 | 住友金属鉱山株式会社 | Au-Sn-Ag系はんだペースト並びにこのAu-Sn-Ag系はんだペーストを用いて接合もしくは封止された電子部品 |
| EP3354633A1 (en) * | 2017-01-31 | 2018-08-01 | Shin-Etsu Chemical Co., Ltd. | Synthetic quartz glass lid precursor, synthetic quartz glass lid, and preparation methods thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4305511B2 (ja) | 2009-07-29 |
| JPWO2006049024A1 (ja) | 2008-05-29 |
| CN101048521A (zh) | 2007-10-03 |
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