This Standard provides a uniform system of letter symbols for electrical quantities and parameters as applied to semiconductor devices. It is divided into three Sections: (1) electrical quantities, dealing primarily with voltage, current, and time quantities; (2) electrical parameters, dealing with the relationship between specific electrical quantities; and (3) list of letter symbols in alphabetical order. The electrical parameters of Section 2 are ratios of the terminal electrical quantities, i.e. two-terminal-pair open-and-short-circuit ratios.<>