Herstellungsverfahren einer Matrix von Abtast- oder Bildwandlereinheiten ganzer Breite aus Untereinheiten

摘要

A method for fabricating a coplanar full width scanning array (40) from a plurality of relatively short scanning subunits (20) for reading and writing images. The subunits are fixedly mounted in an end-to-end relationship on a flat structural member (30) with the subunit surfaces containing the scanning elements (12) all being coplanar even though at least some of the subunits have varying thickness. This is accomplished by forming from a photopatternable thick film layer (14) one or more keys (18, 38) on the subunit surface having the scanning elements and associated circuitry and positioning the keys into keyways (28, 39) produced from a photopatternable thick film layer (23) on a flat surface of an alignment fixture (24). A conformal adhesive (36) bonds the structural member to the assembled subunits to form the full width scanning array.