Laser bonding and packaging of plastic microfluidic chips

Plastics-based microfluidic and other microanalytical platforms have a great potential in bioMEMS applications, because many plastics are low cost and biocompatible, and have good processibility, compared with silicon and/or glass based biochips. To achieve terminal product bonding and packaging is a challenging issue in the fabrication of these plastic platforms. Conventional bonding and packaging methods have aroused problems like high temperature, high voltage, vibration damage or adhesive pollution. In this paper. a new bonding technology based on transmission laser welding plastics is introduced to the field of plastics chips packaging. Principle, experimental set-up and initial result are given to show characteristics of this technology.