Film resistors on hybrid microcircuits

The basis of film resistor is a resistive film of a metal (chromium, tantalum, palladium), a metal alloy (nichrome) or ceramic-metal (cermet).
Resistance film of a certain configuration is applied somehow or other to the insulating base of a hybrid integrated circuit.
As can be seen from the figure:
"1" is metallic electrodes, "2" is the resistive film, "3" is the dielectric base ...