AMPLIFIER OF RECORDING-READING FOR STORAGES Russian patent published in 1994 - IPC

FIELD: computer engineering. SUBSTANCE: circuit of amplifier of recording-reading includes four kinds of MIS transistors different in values of threshold voltages: U₀₁= 0 ± 0,2B - transistors with zero threshold; U₀₂= 0,6 ± 0,2B - enhancement-mode transistors of first kind; U₀₃= 1,0 ± 0,2B - enhancement-mode transistors of second kind; U₀₄= -3,25 ± 0,75B - transistors with depletion. Formation of first kind of transistors with enhancement is conducted simultaneously with doping of channels of storage cells of matrix storage circuit to obtain higher transconductance. Formation of second kind of enhancement-mode transistors is influenced by provision for higher reliability of circuit of recording amplifier under condition of programming of input information with input normalized levels U0i

_n = 0,8B, U1i_n = 2B. EFFECT: increased reliability of amplifier of recording-reading under condition of recording of programmed matrix storage circuit. 2 dwg