CN104894425A - 一种超极细银扁丝带及其制备方法 - Google Patents

一种超极细银扁丝带及其制备方法 Download PDF

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CN104894425A
CN104894425A CN201510278222.4A CN201510278222A CN104894425A CN 104894425 A CN104894425 A CN 104894425A CN 201510278222 A CN201510278222 A CN 201510278222A CN 104894425 A CN104894425 A CN 104894425A
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范国伟
范长云
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Anhui Jieao Electronic Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L24/00Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
    • H01L24/01Means 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
    • H01L24/42Wire connectors; Manufacturing methods related thereto
    • H01L24/43Manufacturing methods
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/43Manufacturing methods
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/44Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/44Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H01L2224/45001Core members of the connector
    • H01L2224/4501Shape
    • H01L2224/45012Cross-sectional shape
    • H01L2224/45014Ribbon connectors, e.g. rectangular cross-section
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01Means 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
    • H01L2224/42Wire connectors; Manufacturing methods related thereto
    • H01L2224/44Structure, shape, material or disposition of the wire connectors prior to the connecting process
    • H01L2224/45Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
    • H01L2224/45001Core members of the connector
    • H01L2224/45099Material
    • H01L2224/451Material 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
    • H01L2224/45138Material 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
    • H01L2224/45139Silver (Ag) as principal constituent
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001Technical content checked by a classifier
    • H01L2924/00011Not relevant to the scope of the group, the symbol of which is combined with the symbol of this group

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  • Engineering & Computer Science (AREA)
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Abstract

一种超极细银扁丝带,涉及键合引线生产技术领域,主要由银和辅料制成,银与辅料的比例为99.99:0.01,辅料包括以下重量份的原料:铁1-3份、铜3-5份、锰1-3份、镁2-3份、铬1-4份、钛3-4份、铍2-5份、铝1-4份。本发明的有益效果是:本发明工艺流程简洁,原料配比合理,通过银与其他混合辅料进行合理配比后,通过科学有序的步骤进行加工,作出的键合丝不仅产品质量优,作出的细度更加细,适合现阶段电子行业的需求,适用于各种精密电子设备,使用效果好,便于推广及使用。

Description

一种超极细银扁丝带及其制备方法
技术领域
本发明涉及键合引线生产技术领域,具体涉及一种超极细银扁丝带及其制备方法。
背景技术
键合引线广泛用于LED、半导体集成电路上,如民用消费品IC:电脑,手机,电视机等芯片上。工业IC:大型服务器,电机,智能仪表仪器,储存器,医疗器械设备等芯片,及太阳能光伏,二极管三极管等电子封装。
随着市场和技术的发展,芯片功能不断增强,引线越来越多,而体积却越来越小,导致焊盘在整个芯片中所占的面积比不断上升,因此,研究超细间距键合技术是解决芯片小型化必须解决的一个关键技术,但是目前市场上生产的键合丝的性能还是相对比较差,而且其在制备的时候,所选用的配料也不合理,同时加工的方式欠缺,很容易造成引线不够均匀,使用效果并不明显,不能满足人们的需求。
发明内容:
本发明所要解决的技术问题在于提供一种配方配比合理,制备工艺简单方便的超极细银扁丝带及其制备方法。
本发明所要解决的技术问题采用以下技术方案来实现:
一种超极细银扁丝带,其特征在于:主要由银和辅料制成,所述的银与辅料的比例为99.99:0.01;
所述的辅料包括以下重量份的原料:铁1-3份、铜3-5份、锰1-3份、镁2-3份、铬1-4份、钛3-4份、铍2-5份、铝1-4份。
所述的辅料优选的重量份为:铁2份、铜4份、锰2份、镁2.5份、铬2.5份、钛3.5份、铍3.5份、铝2.5份。
本发明的另一个目的是提供一种制备本发明超极细银扁丝带的方法,其特征在于包括以下步骤:
a、选用一真空熔炉,将原料中的银放进真空熔炉内,调节炉内温度为700-1200℃,进行高温熔炼,在熔炼过程中,要冲入氮气和氩气加以保护;
b、待银完全熔炼后,将原料中辅料依次添加进入熔炉,控制转速为2500-3000r/min的速率进行高速搅拌,搅拌均匀后,静置45分钟;
c、将上述步骤b中的原料通过铸造模,铸造出直径为8mm的银棒材,然后自然冷却;
d、将8mm的银棒材用模具拉拔成粗3mm银丝材,将3mm粗银丝以500-900℃的高温退火65分钟,然后进行冷挤压8-10次后得到所需细度的银丝材;
e、将步骤d处理后的银丝以400-600℃的高温退火45分钟以消除加工应力,随炉冷却,然后冷拉至所需的直径;
f、将步骤e中的银丝经扁模心加工到所需的规格后,最后再自然冷却后即可制成超极细银扁丝带。
本发明的有益效果是:本发明工艺流程简洁,原料配比合理,通过银与其他混合辅料进行合理配比后,通过科学有序的步骤进行加工,作出的键合丝不仅产品质量优,作出的细度更加细,适合现阶段电子行业的需求,适用于各种精密电子设备,使用效果好,便于推广及使用。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体实施例,进一步阐述本发明。
实施例1
称取99.99g的银和0.01g的辅料,(辅料按照铁1份、铜3份、锰1份、镁2份、铬1份、钛3份、铍2份、铝1份的组分进行配置),然后选用一真空熔炉,将原料中的银放进真空熔炉内,调节炉内温度为700℃,进行高温熔炼,在熔炼过程中,要冲入氮气和氩气加以保护;待银完全熔炼后,将原料中辅料依次添加进入熔炉,控制转速为2500r/min的速率进行高速搅拌,搅拌均匀后,静置45分钟后通过铸造模,铸造出直径为8mm的银棒材,然后自然冷却,再用模具拉拔成粗3mm银丝材,将3mm粗银丝以500℃的高温退火65分钟,然后进行冷挤压8-10次后得到所需细度的银丝材,银丝以400℃的高温退火45分钟以消除加工应力,随炉冷却,然后冷拉至所需的直径经扁模心加工到所需的规格后,最后再自然冷却后即可制成超极细银扁丝带。
实施例2
称取999.9g的银和0.1g的辅料,(辅料按照铁2份、铜4份、锰2份、镁2.5份、铬2.5份、钛3.5份、铍3.5份、铝2.5份的组分进行配置),然后选用一真空熔炉,将原料中的银放进真空熔炉内,调节炉内温度为950℃,进行高温熔炼、在熔炼过程中,要冲入氮气和氩气加以保护;待银完全熔炼后,将原料中辅料依次添加进入熔炉,控制转速为2750r/min的速率进行高速搅拌,搅拌均匀后,静置45分钟后通过铸造模,铸造出直径为8mm的银棒材,然后自然冷却,再用模具拉拔成粗3mm银丝材,将3mm粗银丝以750℃的高温退火65分钟,然后进行冷挤压8-10次后得到所需细度的银丝材,银丝以500℃的高温退火45分钟以消除加工应力,随炉冷却,然后冷拉至所需的直径经扁模心加工到所需的规格后,最后再自然冷却后即可制成超极细银扁丝带。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (3)

1.一种超极细银扁丝带,其特征在于:主要由银和辅料制成,所述的银与辅料的比例为99.99:0.01;
所述的辅料包括以下重量份的原料:铁1-3份、铜3-5份、锰1-3份、镁2-3份、铬1-4份、钛3-4份、铍2-5份、铝1-4份。
2.根据权利要求1所述的一种超极细银扁丝带,其特征在于,所述的辅料优选的重量份为:铁2份、铜4份、锰2份、镁2.5份、铬2.5份、钛3.5份、铍3.5份、铝2.5份。
3.一种制备本发明一种超极细银扁丝带的方法,其特征在于,包括以下步骤:
a、选用一真空熔炉,将原料中的银放进真空熔炉内,调节炉内温度为700-1200℃,进行高温熔炼,在熔炼过程中,要冲入氮气和氩气加以保护;
b、待银完全熔炼后,将原料中辅料依次添加进入熔炉,控制转速为2500-3000r/min的速率进行高速搅拌,搅拌均匀后,静置45分钟;
c、将上述步骤b中的原料通过铸造模,铸造出直径为8mm的银棒材,然后自然冷却;
d、将8mm的银棒材用模具拉拔成粗3mm银丝材,将3mm粗银丝以500-900℃的高温退火65分钟,然后进行冷挤压8-10次后得到所需细度的银丝材;
e、将步骤d处理后的银丝以400-600℃的高温退火45分钟以消除加工应力,随炉冷却,然后冷拉至所需的直径;
f、将步骤e中的银丝经扁模心加工到所需的规格后,最后再自然冷却后即可制成超极细银扁丝带。
CN201510278222.4A 2015-05-27 2015-05-27 一种超极细银扁丝带及其制备方法 Pending CN104894425A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107653400A (zh) * 2017-09-05 2018-02-02 钱友静 一种用于书画表面装饰的银箔
CN110791675A (zh) * 2019-12-18 2020-02-14 苏州金江铜业有限公司 一种含铝的银镁合金材料及其制备方法
CN111411253A (zh) * 2020-04-14 2020-07-14 紫金矿业集团黄金冶炼有限公司 一种高纯银铜合金异型丝材的制备方法

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US20100239456A1 (en) * 2009-03-23 2010-09-23 Lee Jun-Der Composite alloy bonding wire and manufacturing method thereof
CN102214630A (zh) * 2011-05-18 2011-10-12 苏州衡业新材料科技有限公司 银基微合金键合丝及其制备方法
CN103614588A (zh) * 2013-11-19 2014-03-05 苏州衡业新材料科技有限公司 银及银合金微细线的制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001176912A (ja) * 1999-12-16 2001-06-29 Noge Denki Kogyo:Kk 金被覆した銀線ボンディングワイヤ
US20100239456A1 (en) * 2009-03-23 2010-09-23 Lee Jun-Der Composite alloy bonding wire and manufacturing method thereof
CN102214630A (zh) * 2011-05-18 2011-10-12 苏州衡业新材料科技有限公司 银基微合金键合丝及其制备方法
CN103614588A (zh) * 2013-11-19 2014-03-05 苏州衡业新材料科技有限公司 银及银合金微细线的制备方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107653400A (zh) * 2017-09-05 2018-02-02 钱友静 一种用于书画表面装饰的银箔
CN110791675A (zh) * 2019-12-18 2020-02-14 苏州金江铜业有限公司 一种含铝的银镁合金材料及其制备方法
CN111411253A (zh) * 2020-04-14 2020-07-14 紫金矿业集团黄金冶炼有限公司 一种高纯银铜合金异型丝材的制备方法

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Application publication date: 20150909