An optimization engine allows website publishers and other network document publishers to view and navigate statistics and scoring methodologies of a search engine. A logic gate array comprises a plurality of vertical ultrathin transistors coupled together. The guitar formatting circuit formats the digital string signals to be compatible with a digital communication protocol, and outputs the formatted digital string signals. The substrate is exposed to a hafnium precursor. The present invention enables the optical transport network to support mapping, multiplexing and highly efficient transmission of low rate signals.