JPWO2009093554A1 - 半導体装置用ボンディングワイヤ - Google Patents
半導体装置用ボンディングワイヤ Download PDFInfo
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- JPWO2009093554A1 JPWO2009093554A1 JP2009550510A JP2009550510A JPWO2009093554A1 JP WO2009093554 A1 JPWO2009093554 A1 JP WO2009093554A1 JP 2009550510 A JP2009550510 A JP 2009550510A JP 2009550510 A JP2009550510 A JP 2009550510A JP WO2009093554 A1 JPWO2009093554 A1 JP WO2009093554A1
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- wire
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
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- C22C5/02—Alloys based on gold
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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
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
- B21C37/047—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire of fine wires
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- 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
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- B23K35/0261—Rods, electrodes, wires
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- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/153—Connection portion
- H01L2924/1531—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
- H01L2924/15311—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a ball array, e.g. BGA
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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
- H01L2924/151—Die mounting substrate
- H01L2924/156—Material
- H01L2924/157—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
- H01L2924/15738—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
- H01L2924/15747—Copper [Cu] as principal constituent
-
- 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
- H01L2924/20—Parameters
- H01L2924/207—Diameter ranges
- H01L2924/20752—Diameter ranges larger or equal to 20 microns less than 30 microns
-
- 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
- H01L2924/30—Technical effects
- H01L2924/301—Electrical effects
- H01L2924/3025—Electromagnetic shielding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Wire Bonding (AREA)
Abstract
Description
Packaging)等の新しい形態が実用化され、ループ性、接合性、量産使用性等をより向上したボンディングワイヤが求められている。
本発明の請求項12に係るボンディングワイヤは、請求項7〜11のうちいずれか1項において、前記芯材を構成する主成分がCuで、Pdを5〜10000ppmの範囲で含有し、前記表皮層を構成する主成分がPd又はAgであることを特徴とする。
本発明の請求項10に係るボンディングワイヤは、請求項1〜9のうちいずれか1項において、前記芯材を構成する主成分がCuで、Pdを5〜10000ppmの範囲で含有し、前記表皮層を構成する主成分がPd又はAgであることを特徴とする。
Claims (13)
- 導電性金属からなる芯材と、前記芯材の上に芯材とは異なる金属を主成分とする表皮層とを有する半導体装置用ボンディングワイヤであって、ワイヤ表面における前記表皮層結晶粒のワイヤ円周方向の平均サイズaと、ワイヤ軸に垂直方向の断面である垂直断面における前記芯材結晶粒の平均サイズbとの関係について、a/b≦0.7であることを特徴とする半導体装置用ボンディングワイヤ。
- 前記平均サイズaが1.5μm以下であることを特徴とする請求項1に記載の半導体装置用ボンディングワイヤ。
- 前記平均サイズbが2μm以上であることを特徴とする請求項1又は2に記載の半導体装置用ボンディングワイヤ。
- 前記ワイヤ表面における前記表皮層結晶粒のワイヤ軸方向の平均サイズcと、ワイヤ軸を含み長手方向の断面である軸断面における前記芯材結晶粒のワイヤ軸方向の平均サイズdとの関係について、d/c≧1.2であることを特徴とする請求項1〜3のうちいずれか1項に記載の半導体装置用ボンディングワイヤ。
- 前記表皮層の表面における硬度SHと、前記芯材の断面における硬度CHとの関係について、SH/CH≧1.3であることを特徴とする請求項1〜4のうちいずれか1項に記載の半導体装置用ボンディングワイヤ。
- 前記表皮層の厚さが0.005〜0.3μmであることを特徴とする請求項1〜5のうちいずれか1項に記載の半導体装置用ボンディングワイヤ。
- 前記表皮層を構成する主成分がPd、Pt、Ru、及びAgのうち少なくとも1種であることを特徴とする請求項1〜6のうちいずれか1項に記載の半導体装置用ボンディングワイヤ。
- 前記芯材を構成する主成分がCu、及びAuのうち少なくとも1種であることを特徴とする請求項1〜7のうちいずれか1項に記載の半導体装置用ボンディングワイヤ。
- 前記表皮層と前記芯材との間に、前記表皮層及び前記芯材を構成する主成分とは異なる成分からなる中間金属層を有することを特徴とする請求項1〜8のうちいずれか1項に記載の半導体装置用ボンディングワイヤ。
- 前記表皮層と前記芯材との間に濃度勾配を有する拡散層を有することを特徴とする請求項1〜9のいずれか1項に記載の半導体装置用ボンディングワイヤ。
- 前記芯材を構成する主成分がCuで、In、Ca、B、Pd、Bi、Zr、Ag、及びPのうち少なくとも1種を5〜300ppmの範囲で含有することを特徴とする請求項7〜10のいずれか1項に記載の半導体装置用ボンディングワイヤ。
- 前記芯材を構成する主成分がCuで、Pdを5〜10000ppmの範囲で含有し、前記表皮層を構成する主成分がPd又はAgであることを特徴とする請求項7〜11のいずれか1項に記載の半導体装置用ボンディングワイヤ。
- 前記芯材を構成する主成分がAuで、Be、Ca、Ni、Pd、及びPtのうち少なくとも1種を5〜9500ppmの範囲で含有することを特徴とする請求項7〜10のいずれか1項に記載の半導体装置用ボンディングワイヤ。
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JP2008015262 | 2008-01-25 | ||
JP2008015262 | 2008-01-25 | ||
PCT/JP2009/050712 WO2009093554A1 (ja) | 2008-01-25 | 2009-01-20 | 半導体装置用ボンディングワイヤ |
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JP4554724B2 JP4554724B2 (ja) | 2010-09-29 |
JPWO2009093554A1 true JPWO2009093554A1 (ja) | 2011-05-26 |
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US (1) | US7952028B2 (ja) |
EP (1) | EP2239766B1 (ja) |
JP (1) | JP4554724B2 (ja) |
KR (1) | KR101057271B1 (ja) |
CN (1) | CN101802994B (ja) |
MY (1) | MY147995A (ja) |
TW (1) | TW200944319A (ja) |
WO (1) | WO2009093554A1 (ja) |
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US10985130B2 (en) | 2018-09-21 | 2021-04-20 | Nippon Steel Chemical & Material Co., Ltd. | Cu alloy bonding wire for semiconductor device |
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CN101802994B (zh) | 2012-02-08 |
CN101802994A (zh) | 2010-08-11 |
US20100282495A1 (en) | 2010-11-11 |
WO2009093554A1 (ja) | 2009-07-30 |
JP4554724B2 (ja) | 2010-09-29 |
EP2239766B1 (en) | 2013-03-20 |
EP2239766A4 (en) | 2011-03-02 |
EP2239766A1 (en) | 2010-10-13 |
TW200944319A (en) | 2009-11-01 |
KR101057271B1 (ko) | 2011-08-16 |
TWI342809B (ja) | 2011-06-01 |
US7952028B2 (en) | 2011-05-31 |
MY147995A (en) | 2013-02-28 |
KR20100023893A (ko) | 2010-03-04 |
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