DNA sequencing has catapulted into the mainstream. A company called Ion Torrent has pioneered an approach to sequencing that uses semiconductor technology and simple chemistry for sequencing. Ion Torrent translates chemical signals into digital data, eliminating the use of light-producing chemistry. The technology makes sequencing affordable to most labs. The chip enables RNA sequencing, which provides better results than the microarray scanners used today. Ion Proton chips have 165 million wells, and the company says its approach can scale to 660 million wells.