Abstract ：Micropipette fabricated from pulling of glass capillary have problems such as easily brittle fracture

hardly controlled length of microchannel and low efficiency of micro-jetting. Therefore a new Non-IC method for fabricating micropipettes has been designed. Round cross section with lower flow resistance is chosen the shape of the nozzle. Multi-microchannels are embedded tightly into the plastic pipe

by employing the rheologic flowing of plastic and the different shrinkage ratio of the two materials when cooling. Conical pipes which connect microchannels and plastic pipe formed by capillary and corrosion action

and meanwhile the length of micronozzles reduced. The method has the characteristics of low cost

simple manipulation and safe process. Micropipettes with 4 and 10 micronozzles have been fabricated. The inner diameter of micronozzle is 50μm

and the length is 2.5mm. The length of the conical pipes is 750μm. Experiments of micro-jetting of aqueous liquid into oil phase and gaseous phase were carried out by employing digitalization of microfluids technology with the micropipettes. Micro-droplets with diameter of 80μm and microarray were prepared. The micropipettes have proved to be well working with digitalization of microfluids technology by the experiments.