A multifunctional invasive cardiovascular diagnostic measurement host is disclosed that interfaces a variety of sensor devices, such as guide wire-mounted pressure sensors, flow sensors, temperature sensors, etc, and provides a multi-mode graphical user interface providing a plurality of displays in accordance with the various types of sensors and measurements rendered by the sensors. Additionally, a second insulating film is formed on the first insulating film, sides of the gate of each memory transistor, and a side, facing the memory transistor, of the gate of the selective transistor. The softening temperature of the second soldering-agent layer is adapted to an operating temperature that occurs in this soldering-agent layer during operation of the device in such a way that the second soldering-agent layer is doughy or liquid at the operating temperature. This provides more conductive pathways at greater distances from the tab. The hetero-structures are incorporated into pillar and rail-stack memory circuits improving the forward-to-reverse current ratios thereof.