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    上海銘葉電子有限公司是自1999年成立的提供專業技術服務的貿易公司。
    本公司長期致力于提供半導體封裝材料、電子組裝材料、醫療組件耗材等專業領域的材料及技術支持。公司在行業內具有廣泛的知名度,并且具有全面的服務網絡和專業的團隊。經過多年的經驗積累,我公司已具有豐富的產品線和技術解決方案,隨時歡迎您的咨詢和交流。同時,我公司也長期關注專業領域人才和創新人才,歡迎有志之士的到來!
    我們將一如既往地提供更好的產品和服務,滿足您的需要!
     
    鍵合絲
    焊錫絲、焊帶

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    我們可提供一系列規格的焊錫絲及以純金或各種金屬為基材的焊帶,品質出色,在國內已擁有眾多客戶
    其它合金材料

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    應用于光前方面的焊片,及其它器件組裝方面所需的散熱片,焊盤等合金產品。
    金線

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    銅線是一種半導體封裝中的新型材料,可替代昂貴的金線,大大節約生產成本,目前已在市場上廣泛地使用。
    銅線與金線之間直徑的換算如下: (d:直徑,s:導電率)
    其中 sCu=103.1%IACS , sAu=73.4%IACS



    由于目前大多數半導體封裝制造企業對成本的考慮越來越多,加上銅線比現在普遍使用的金線的某些物理特性及電性能方面都要更好(表1)。所以銅線代替金線在半導體封裝的應用開始慢慢成為趨勢。SPM在銅線研發和制造方面都有著較強的優勢,目前SPM能夠制造0.7mil---10mil的各種規格的銅線,并能夠根據客戶的產品和應用一起幫助客戶研發和制造適合的產品。

    性能 Cu Au Al Ag
    電導率 103.1 73.4 64.5 108.4
    電阻率 16.7 20.1 16.7 14.7
    熱導率 398.0 317.9 243.0 428.0
    熱膨脹系數 16.5 14.2 23.6 19.0
    彈性模量 115 78 62 71

    鋁線

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