A surface shape recognition sensor includes capacitive detection elements,
support electrode, protective film, and projections. The detection
elements are formed from lower electrodes and a deformable plate-like
upper electrode made of a metal. The lower electrodes are insulated and
isolated from each other and stationarily laid out on a single plane of
an interlevel dielectric formed on a semiconductor substrate. The upper
electrode is laid out above the lower electrodes at a predetermined
interval and has opening portions. The support electrode is laid out
around the lower electrodes while being insulated and isolated from the
lower electrodes, and formed to be higher than the lower electrodes to
support the upper electrode. The protective film is formed on the upper
electrode to close the opening portions. The projections per one pixel
are laid out in a region of the protective film above the capacitive
detection element.