Methods of releasing photoresist film from substrate and bonding photoresist film with second substrate

摘要

Provided is a method of releasing a photoresist film from a substrate, including: forming a self-assembled monolayer (SAM) on a substrate; coating the SAM with a photoresist film; and rinsing the substrate with an alcoholic group compound or an acid. A method of bonding a released photoresist film with a substrate includes arraying a second substrate and the photoresist film released from a first substrate using the above-described method, and baking the second substrate. According to the photoresist film releasing method, a photoresist film can be easily released from a substrate without damage after patterning. According to the bonding method, the photoresist film can be perfectly bonded with a second substrate without generating a crevice even though an additional adhesive is not used. When using the released photoresist film as an upper substrate of a microfluidic device, the manufacturing cost of the microfluidic device can be remarkably reduced compared to the manufacturing cost of existing microfluidic devices using a cover glass.