  We have developed a completely lithographic antenna-coupled bolometer for CMB
polarimetry. The necessary components of a millimeter wave radiometer -- a beam
forming element, a band defining filter, and the TES detectors -- are
fabricated on a silicon chip with photolithography. The densely populated
antennas allow a very efficient use of the focal plane area. We have fabricated
and characterized a series of prototype devices. We find that their properties,
including the frequency and angular responses, are in good agreement with the
theoretical expectations. The devices are undergoing optimization for upcoming
CMB experiments.
