会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Epoxy resin sealing material for molding semiconductor chip and method
for manufacturing the same
    • 用于模制半导体芯片的环氧树脂密封材料及其制造方法
    • US6120716A
    • 2000-09-19
    • US147799
    • 1999-03-10
    • Takanori KushidaAkio KobayashiYosuke ObataHironori IkedaTaro FukuiMasashi Nakamura
    • Takanori KushidaAkio KobayashiYosuke ObataHironori IkedaTaro FukuiMasashi Nakamura
    • C08L63/00H01L23/29B29B9/08
    • C08L63/00H01L23/293H01L2924/0002
    • An epoxy resin encapsulating material for molding in a semiconductor chip by the use of a transfer molding device. The material has constituents of an epoxy resin, a curing agent, an inorganic filler, and a release agent. The material consists of 99 wt % or more of granules having a diameter of 0.1 to 5.0 mm and 1 wt % or less of minute particles having a diameter of less than 0.1 mm. The mass of the material exhibit an angle of slide of 20 to 40.degree., which demonstrates good flowability free from clogging a passage leading to a mold cavity in the transfer molding device, thereby assuring enhanced encapsulation quality. The material is prepared firstly by kneading the encapsulating composition having the above constituents and by solidifying the composition into a semi-cured solid body of B-stage condition. The sem-cured solid body is then pulverized into pieces having a diameter of 5.0 mm or less. The pieces are composed of granules having a diameter of 0.1 mm to 5.0 mm and minute particles having a diameter of less than 0.1 mm. Subsequently, heat is applied to melt a resin component of the encapsulating composition in the surfaces of the granules while continuously moving the granules so as to entrap the minute particles in a molten phase of the resin component. Thereafter, the molten phase is cooled to obtain epoxy resin encapsulating grains coated with a resin layer incorporating the minute particles having the diameter of less than 0.1 mm.
    • PCT No.PCT / JP97 / 02774 Sec。 371 1999年3月10日 102(e)1999年3月10日PCT PCT 1997年8月7日PCT公布。 公开号WO99 /​​ 08321 1999年2月18日,日本专利公开了一种用于通过传递模塑装置在半导体芯片中成型的环氧树脂封装材料。 该材料具有环氧树脂,固化剂,无机填料和脱模剂的成分。 该材料由直径为0.1〜5.0mm,直径小于0.1mm的微粒的1wt%以下的99wt%以上的颗粒构成。 材料的质量表现出20〜40°的滑动角度,这表现出良好的流动性,没有堵塞通向传送模制装置中的模腔的通道,从而确保了增强的封装质量。 首先通过捏合具有上述组分的包封组合物并将组合物固化成B阶状态的半固化固体物质。 然后将半固化的固体粉碎成直径为5.0mm以下的片。 这些片由直径为0.1mm至5.0mm的颗粒和直径小于0.1mm的微小颗粒组成。 随后,在颗粒表面连续移动颗粒以使微小颗粒在树脂组分的熔融相中截留,施加热量以熔化颗粒表面中的包封组合物的树脂组分。 然后,将熔融相冷却,得到涂布有直径小于0.1mm的微小粒子的树脂层的环氧树脂封装晶粒。