1. 底切：纯粹的化学刻蚀通常没有方向选择性,刻蚀后将形成圆弧的轮廓,并在屏蔽(Mask)下形成底切(Undercut),此谓之等向性刻蚀. 等向性刻蚀通常对下层物质具有很好的选择比,但线宽定义不易控制. 而非等向性蚀刻则是藉助具有方向性离子撞击,
2. 钻蚀：剥离工艺是一些特殊工艺中形成图形的比较简单的物理方法,优点是可以使用多种材料组合,允许多层金属蒸发,允许腐蚀较困难的多层金属布线,避免了因干法和湿法腐蚀带来钻蚀(undercut)和腐蚀问题.
3. 侧蚀：至於另一种半氧化的Cu+则很难水溶,常附著在线路腰部流速较低的侧壁上,可当成护岸剂(Banking Agent),而使侧蚀(Undercut)得以减低. 为了降低水沟效应减少侧蚀与残足起见,5mil以下的细线应尽可能将待蚀刻的铜层逼薄,同时也还应将抗蚀阻剂逼薄.
1. 压低(价格)；以低于…的价格销售
If you undercut someone or undercut their prices, you sell a product more cheaply than they do.
e.g. The firm will be able to undercut its competitors whilst still making a profit.
该公司将得以把价格压得低于竞争对手而仍能盈利。
e.g. ...promises to undercut air fares on some routes by 40 per cent...
承诺将一些航线的票价降低40%
2. 削弱；破坏
If your attempts to achieve something are undercut by something, that thing prevents your attempts from being effective.
e.g. The appeal in Miller''s pictures of Indian women is undercut at times by what the artist writes about them...
米勒画作中印第安妇女的魅力有时会被艺术家的文字描述削弱。
e.g. Popular support would be undercut by political developments.
民众的支持率将会随政治势态的发展而下降。
noun
1. a cut made underneath to remove material
2. (sports) a stroke that puts reverse spin on the ball
e.g. cuts do not bother a good tennis player
Synonym: cut
3. a notch cut in the trunk of tree in order to determine the direction of its fall
4. the tender meat of the loin muscle on each side of the vertebral column
Synonym: tenderloin
5. the material removed by a cut made underneath
verb
1. cut obliquely into (a tree) below the main cut and on the side toward which the tree will fall
2. strike (the ball) in golf, tennis, or hockey obliquely downward so as to give a backspin or elevation to the shot
3. cut away the underpart of
e.g. undercut a vein of ore
4. cut away material from the underside of (an object) so as to leave an overhanging portion in relief
5. sell cheaper than one''s competition
Synonym: undersell