An integrated circuit structure including a SRAM cell is provided in which the performance of the pass-gate transistors is degraded in order to increase the beta ratio of the transistors within the SRAM cell. An apparatus includes a first imaging device aligned to the monitoring zone, a second imaging device aligned to the monitoring zone from a direction different from the first imaging device, and an evaluating device structured and arranged to evaluate image data recorded by the first and second imaging devices. The voltage tap point is configured to be selectively coupled simultaneously with the drive mechanism and the voltage feedback network, such that an output of the voltage tap point is selectively coupled with the drive mechanism via the voltage feedback network. This arrangement has a push-button type release feature to facilitate easy folding.