chip n. 1.碎片,削片,薄片;碎屑;薄木片;无价值的东西。 2.(陶器等的)缺损(处)。 3.(赌博用)筹码;〔pl.〕〔英俚〕钱。 4.〔pl.〕〔口语〕炸马铃薯片。 5.(作燃料的)干牛[马]粪。 6.集成电路唱片[块]。 7.〔口语〕小粒金刚石[水晶]。 a chip of [off] the old block (脾气等)完全像父亲的儿子;一家的典型人物。 (as) dry as a chip 枯燥无味的。 buy chips 投资。 cash [pass] in one's chips 把筹码兑现;〔俚语〕死。 chip in porridge [pottage, broth] 无关重要的东西,可有可无的东西。 do not care a chip for 毫不介意。 have a chip on one's shoulder 〔美俚〕盛气凌人;好打架;好争吵。 have one's chips on 孤注一掷。 in the chips 〔美俚〕有钱的。 let the chips fall where they may 不管后果如何。 when the chips are down [get on the line] 万不得已的时候,紧急时候。 vt. (-pp-) 1.切,削,凿,刻。 2.把…削成薄片;弄缺(刀口,瓷器等)。 3.〔口语〕戏弄;挖苦。 4.(鸡雏等)啄碎(蛋壳)。 vi. 1.出现缺口。 2.碎裂,瓦解,破碎 (off)。 chip at 对准…打,谩骂。 chip in 〔口语〕插嘴,加入(打架等);捐助;拿钱赌 (They all chipped in to buy it. 大家都要买了)。 chip off 切下来,削下来。 n. (摔跤时)用绊腿把对方摔倒的一种技巧。 vt. (-pp-) (用绊腿)摔倒(对方)。
defect n. 1.缺陷,缺点,弱点;短处。 2.不足,缺乏。 have some defect in eyesight 目力不佳。 have the defects of one's qualities 美中不足之处。 in defect of 若无…时;因无。 vi. 叛变;逃走。 He defected to the West. 他叛逃到西方。
For the convenience of test , varied circuit chip defects caused by the production process are abstracted as all kinds of models . at present the commonly used fault models mainly consist of stuck - at fault , stuck - open fault , bridge fault , store fault , delay fault , etc . testing methods based on voltage testing mainly aim at stuck - at fault model and have also obtained satisfactory result in research for many years . bridge fault is tested easily by quiescent power supply current ( iddq ) testing method . in regard to stuck - open fault that is difficult to testd by quiescent power supply current ( iddq ) and voltage testing , it can is tested by the dynamic current ( iddt ) testing 为了便于测试,我们将生产过程中集成电路出现的多种多样的缺陷抽象为各种模型。目前常用的故障模型主要有:固定故障,开路故障,桥接故障,存储故障,时滞故障等。电压测试主要针对固定型故障模型,多年的研究也取得了令人满意的结果; cmos电路中的桥接故障则宜用稳态电流测试方法( iddq )测试;对于电压和稳态电流难以测试的开路故障,可以使用瞬态电流测试( iddt )的方法进行测试。