Abstract
Laser-assisted direct imprinting (LADI) is an etch-free and high throughput fabrication process in the submicron scale, though complete theoretical modeling and physical analysis have not yet been investigated. The present study formulates, analyzes and discusses the laser-induced melting, elastic stretching and low-Reynolds number flow during a LADI fabrication process. With proper assumptions and simplifications for the proposed mathematical modeling, the physics involved has been well tackled and theoretical prediction as well as engineering optimization can be efficiently obtained. The predicted melting duration and imprinting depth show good agreement with the experimental measurement performed in our group.
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