释义 |
QFN 基本例句 方形扁平无引脚封装¹⁰⁰ Now we focus on IC test handler, it's production included most of the assembly types, for example DIP,SOP,SSOP,TSSOP,QFP,TO series,QFNetc.目前主要生产集成电路分选机,产品品种涵盖目前市场上的绝大多数封装品种,如DIP,SOP,SSOP,TSSOP,QFP,TO系列等。 Distinguished leads by its direction, quad leads could consider two dual leads, therefore the method is also availablefor QFP andQFN.通过区分引脚的细长度方向将两边带引脚推广到四边带引脚,该方法对QFP、QFN等封装类型的形位检测也是有效的。 TheQFNpackage,a new and developing technology for chip package,is a small footprint,low profile,surface mount,plastic encapsulated package with leads on the bottom.QFN是一种焊盘尺寸小、体积小、以塑料作为密封材料的新兴的表面贴装芯片封装技术。 Research onQFNSoldering and AssemblyQFN封装元件组装工艺技术研究 Studying on the Coatings ofQFNEMI Shielding by Using Electroless Cu PlatingQFN封装电磁屏蔽用化学镀Cu的研究 stackedQFN叠层QFN |