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Pressure Waves Induced by Megasonic Agitation in a LIGA Development Tank

机译:LIGa开发槽中超声波搅拌引起的压力波

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Megasonic agitation is used to improve the uniformity of the LIGA development process. To investigate the acoustic wave fields induced by megasonic agitation, the authors compute wave fields for a development tank containing a submerged wafer and for a typical trench-like feature on the wafer face. The separate treatment of these two problems is advantageous, because the length scales of the tank and the feature differ by three to four orders of magnitude.

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