Portable device for time measurement that counts with the basic functions of time and date, alarm, Timer, Stopwatch, Fixed Interval Timer function, as well as a Variable Interval Timer function. The chip has a pump connecting section to communicate with micro pumps; a mixing flow path for mixing a specimen and reagent and for reaction processing by heating; and a testing flow path for performing a predetermined test of a mixed solution heated and processed for reaction. The looped support struts have a high degree of \u201cradial\u201d stiffness with a low degree of \u201clongitudinal\u201d stiffness. The manifold pressure estimating unit uses the estimated value as a substitute value of the output of the manifold pressure sensor and continues to control the engine when the manifold pressure sensor has failed. An aspect of the invention generates feedback information that facilitates control of imprint mask feature profile via employing a scatterometry system to detect retrograde feature profiles, and mitigating the retrograde profiles via a spacer etchback procedure.