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一、引言 随着集成电路（ＩＣ）集成度的迅速 提高，一方面，电路的复杂程度不断提 高，平均每１０年增长６倍。这使得许多 原先必须用多块ＩＣ搭成ＰＣＢ（印制电 路板）方式实现的功能可以在一块芯片 上完成，这既减小了电路的尺寸和功 耗，又使其可靠性有了十分显著的提 高?
I. INTRODUCTION With the rapid increase in integrated circuit (IC) integration, on the one hand, the complexity of the circuit is continuously increasing, with an average increase of 6 times every 10 years. This allows many of the functions that previously had to be achieved by using multiple ICs in a PCB (printed circuit board) form on a single chip, reducing both the size and the power consumption of the circuit while making it significantly more reliable Improve?