Photolithography

Photolithography is used to make integrated circuits.

The appearance of the book is as unattractive as its subject-matter. It has been reproduced from typescript by photolithography, as many theses are in these days of expensive printing; but the copy photographed has been carelessly typed on a machine with a defective spacing-mechanism and a number of damaged characters; to make matters worse, the typist has failed to keep the type clean.