The third stage etching in current method is a time-fixed etching, which easily causes under etching or over etching of the metal layer.
现有的刻蚀形成金属线时的第三阶段刻蚀采用了固定时间的刻蚀，极易造成金属层刻蚀不足或过刻蚀的问题。
The influence on over etching and under etching to IC layout is analyzed, the computation model and realization method of IC critical area are presented.
论文在分析过刻蚀和欠刻蚀对IC版图影响的基础上，提出了基于工艺偏差影响的IC关键面积计算新模型和实现方法。
Characteristic: Xeno? III Single Step Self etching Dental Adhesive avoids sensitivity by sealing dentinal tubules and eliminating problems of over drying and over - etching of dentin.
特点：异种？三单步自腐蚀牙胶密封避免敏感的牙本质小管和消除问题的干燥和酸蚀牙本质。
Experimental results show that the polishing process includes the steps of etching, brightening and over-etching. The mechanism are also discussed.
结果表明，黄铜的化学抛光包括浸蚀、光亮和过腐蚀三个阶段，同时对黄铜化学抛光机理也进行了探讨。
Experimental results show that the polishing process includes the steps of etching, brightening and over-etching. The mechanism are also discussed.
结果表明，黄铜的化学抛光包括浸蚀、光亮和过腐蚀三个阶段，同时对黄铜化学抛光机理也进行了探讨。
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