For a given degree of complexity, it is possible to partition the circuitry so that MMICs (monolithic microwave integrated circuits) of low functionality may be interconnected using MIC technology to attain the desired system performance. The unique advantages of MMIC technology, for example, small size, light weight, high reliability, and low cost, however, are all enhanced by achieving as high
... [Show full abstract] a degree of circuit integration as possible consistent with acceptable overall yields. The yield issue will therefore be crucial in determining the eventual system impact of GaAs MMIC technology. The production yields of high-performance GaAs MMICs will be dictated by the following salient factors: GaAs FET and Schottky diode yield, passive component yield, distribution of element values (active and passive), circuit performance sensitivity to element values, and chip size. These factors in turn depend on the design approach and fabrication technique. Approaches that are consistent with the high production yield of GaAs MMICs are discussed, and representative examples of the application of these considerations are described.