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微米级球形Sn-Pb金属粒子脉冲微孔法制备技术研究

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Indexed by:期刊论文

Date of Publication:2013-11-25

Journal:焊接

Included Journals:PKU、ISTIC

Issue:11

Page Number:28-32

ISSN No.:1001-1382

Key Words:脉冲微孔喷射法;均匀球形微粒子;BGA

Abstract:利用自行研制的脉冲微孔喷射系统制备均匀球形Sn-Pb微米级粒子,并研究了坩埚内外压力差、压电陶瓷驱动电压、传动杆直径、压电陶瓷频率等实验参数对粒子制备的影响.结果表明增大差压、压电陶瓷电压、传动杆直径,制备得到粒子的粒径也随之增大,压电陶瓷频率对粒径无明显影响.脉冲微孔法制备的粒子具有粒径均匀、圆球度高、表面质量好等优点,脉冲微孔喷射法(POEM)在BGA精密封装领域具有较好的发展潜力.

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