PtSi Hexagonal Detector Focal Plane Arrays

Abstract

We demonstrate that it is straightforward to fabricate a mosaic array of hexagonal detectors within the framework of existing design rules and fabrication technology. As an example, we have fabricated an 8x8 array of hexagonal detectors with a very high fill factor using a PtSi technology. This is believed to be the first time that such an array has actually been fabricated. Design and fabrication highlights are discussed. A brief summary of performance advantages and algorithm implications that result from the use of the hexagonal configuration is given along with a possible system configuration. Plans for the design and testing of a 64x64 array of hexagonal detectors and corresponding readout chip are presented.