document: A high-resolution high-frequency monolithic top-shooting microinjector free of satellite drops - part II : fabrication , implementation , and characterization For pt . I , see ibid. , vol . 11 , no. 5 , p. 427-36 -LRB- 2002 -RRB- . Describes the fabrication , implementation and characterization of a thermal driven microinjector , featuring a bubble check valve and monolithic fabrication . Microfabrication of this microinjector is based on bulk/surface-combined micromachining of the silicon wafer , free of the bonding process that is commonly used in the fabrication of commercial printing head , so that even solvents and fuels can be ejected . Droplet ejection sequences of two microinjectors have been studied along with a commercial inkjet printhead for comparison . The droplet ejection of our microinjector with 10 mu m diameter nozzle has been characterized at a frequency over 35 kHz , at least 3 times higher than those of commercial counterparts . The droplet volume from this device is smaller than 1 pl , 10 times smaller than those of commercial inkjets employed in the consumer market at the time of testing . Visualization results have verified that our design , although far from being optimized , operates in the frequency several times higher than those of commercial products and reduces the crosstalk among neighboring chambers
doc_bio_tags: O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I I O O O B I I O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O B O O O O O O O B I O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B O O O
extractive_keyphrases: satellite drops thermal driven microinjector bubble check valve bonding process inkjet printhead nozzle droplet volume consumer market crosstalk 35 khz
abstractive_keyphrases: monolithic top-shooting microinjector bulk/surface-combined micromachining 10 micron