Abstract
The demand of what is needed for printing technologies is moving on a moment-to-moment basis. However, there is almost no innovative changes for fabrication of the new commercial products like fuel battery and micro-chips for gene analysis. In the field of biochemistry, biomaterials such as nucleic acids are measured with DNA microarray constructed by photolithographic technique which is one of the printing technologies. But recently, the necessity of biomaterial detection with higher degree of accuracy appears in medical industry. In accordance with the request, a new technology, dubbed digital measurement, to detect biomaterials with highly quantity has been developed using tiny reaction loci prepared by photolithography, leading a new diagnostic technology. In this report, we present an example of digital analysis of gene and some problems to be solved for application of semiconductor processing technologies such as photolithography to detection of biomaterials.