所谓金属电迁移失效, 通常是指金聪层圆金埔离子的迁移在局部区域由质最堆积(Pi]eup)而出现小丘 (Hillocks)或品须,或由质量亏损出现空洞(v01ds)而造成的器件或互连性能退化或 失效.在实际电路中电迁移是要极力避免的。
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N-COUNT A hillock is a small hill. 小山丘
But there were so many hillocks and Banks to climb and pass, that, at length, I began to be weary, and told her we must halt, and retrace our steps.
可是有这么多小山和斜坡要爬、要过,终于我开始感到累了,就告诉她我们必须打住往回走。
Spring is coming. Tender sprouts are beginning to appear on hillocks.
春天来了,山丘上长出了小草的嫩芽。
We all know how well owls see at night. Hills, hillocks, precipices-all these our owl distinguished as if it had been daylight.
众所周知,猫头鹰在夜间视力很好,斜坡啦、山丘啦、悬崖啦——它都能辨认出来,就像在白天一样。
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