QFN封装的外露式晶粒连结焊垫，以及较短的传导途径(wire path)，能有效改善散热效能与电子寄生效应；此外，作为接地焊垫 (ground pad)的外露式晶粒焊垫在RF电路中亦可获得稳定的RF效能。
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The wire path generation of multiple-cut in 2-axis WEDM is researched. Then an algorithm named Virtual Wire Model is presented.
主要研究内容如下：1、针对零件的不同结构和加工要求，研究并实现了两轴电火花线切割多次切割电极丝中心轨迹的生成算法。
My old path along the banks of the Tigris, the one I had used since 2003, was finally rendered impassable by several new coils of razor wire.
我从2003年开始跑的底格里斯河沿岸被一些新的铁丝网拦住了，无法通过。
Accordingly, such problems as single power source and multi-power resources network planning, path connection nodes and path wire section are resolved.
解决了单电源和多电源网络规划、线路交叉点及线路导线截面选择等问题。
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