A thermal-type drop generator having a geometry that is configured so that the ejection of liquid from the chamber has the effect of separating the ejected volume into a number of small droplets. The relationship between the thickness of the liquid chamber and the area of the heat transducer used to...http://www.google.com.tw/patents/US20020092519?utm_source=gb-gplus-share專利 US20020092519 - Thermal generation of droplets for aerosol