Techniques of microminiaturization

Two approaches to micro-circuits are described and their merits discussed. In the case of thin film circuits it is shown that resistors and capacitors can be made in conjunction with one another over a fairly wide range of values. The use of semi-conductor p-n junctions as circuit elements is then discussed and one tentative design of an integrated circuit is given. Low temperature devices are also described. The importance of micro-circuit techniques for space applications is discussed.