Thin crystalline silicon layers on an insulating ceramic substrate permit the realization of a seriallyinterconnected monolithic array. In this paper we present the device design and fabrication issues relating to such a monolithically integrated device, and the latest results are presented. A novel device process is presented that involves isolating and re-interconnecting silicon solar cell elemcnts on an insulating ceramic substrate. Device efficiencies of 7.3% have been achieved. and are presently limited by high series resistance and chemical impurities.