Surface topography has an important role in the motion of fluid in microchannels due to the fluid boundary layer. The cross surface roughness variations result in some problems such as turbulence, confusion in microchannel's ...

A novel planar quasi-monolithic (QM) hybrid integration technology for microwave and millimeter wave application is presented. Microwave transistor chips are embedded in micromachined openings in high-resistivity silicon (HRS) substrate material...