Concept for compensating the influence of external disturbances on physical function parameters of integrated circuits

摘要

A circuit (150; 200) for generating an output signal (116) which depends on a physical useful variable (108), comprising: - means (106) for detecting the physical useful variable (108), wherein the means (106) for Detection is arranged to produce an output signal (116) of the physical effective size (108), a control signal (112) for the means (106) for detecting, and at an unchanged control signal (112) from an external disturbance ( 118, 118, 119); - sensor means (120) for detecting the external disturbance (118 ', 118, 119) and for providing a sensor signal (122) dependent on the external disturbance (118', 118, 119); and - means (124) for processing the sensor signal (122) to influence the control signal (112) in response to the sensor signal (122) so as to reduce the influence of the external disturbance (118 ', 118, 119) on the output signal is; - wherein the circuit further comprises a memory (152) which is adapted to store information which the influence of the external disturbance (118 ', 118, 119) on the sensor signal (122), the control signal (112) and / or reproduce the output signal (116); - wherein the circuit (150; 200) is an integrated circuit on a semiconductor substrate; Wherein the external disturbance (118 ', 118, 119) is a mechanical strain in the semiconductor substrate affecting the output signal (116), the sensor means (120) for detecting the external disturbance (118', 118, 119) being a strain sensor for detecting at least one component of the mechanical strain (118 ', 118, 119) in the semiconductor material.