Polydimethylsiloxane (PDMS) Bonding Strength Characterization by a Line Force Model in Blister Tests

A methodology characterizing the strength of PDMS bonding has been proposed. This method employs a blister test to measure and a line force model to describe the bonding strength. The blister test provides us a close approximation to the bonding failure modes under field-used situations. The line force model is a general means to study the bonding strength. A series of the blister tests on PDMS samples have been conducted. The effects of sample size and structured surface on the bonding strength have been examined.