Transducer for temporal variation of temperature, electronic chip including transducteur and method for manufacturing chip

摘要

The transducer has an upper conductive electrode (40) exposed to temporal variation of temperature to be measured. A pyroelectric material layer (44) is directly interposed between the upper conductive electrode and a lower conductive electrode (42) to generate potential difference between the electrodes corresponding to the temperature variation even in the absence of exterior mechanical constraints, where pyroelectric material is based on 111-V nitride or aluminum nitride. The upper conductive electrode is made of molybdenum or titanium. Independent claims are also included for the following: (1) a thermal pattern detecting electronic chip comprising a resistor in the form of a resistive strip (2) a method for manufacturing a thermal pattern detecting electronic chip.