期刊
JOURNAL OF APPLIED PHYSICS
卷 95, 期 5, 页码 2800-2808出版社
AMER INST PHYSICS
DOI: 10.1063/1.1644898
关键词
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By fabricating a large number of microchannels with different aspect ratios using anodic bonding, we demonstrate that a channel collapse can occur during anodic bonding as a result of the high electric field inside the channels. A theory is developed to establish a criterion for the collapse. This theory shows that the collapse can be avoided as long as the condition epsilon(a)V(2)a/E(eff)d(3)<1 is satisfied, where epsilon(a) is the permittivity of air, V is the applied voltage for anodic bonding, E-eff is a material constant which characterizes the elastic stiffness of the materials, a is the half width of the channel, and d is the channel depth. The validity of this theory is checked by comparing with experimental results. (C) 2004 American Institute of Physics.
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