Detection device, measurement apparatus, and manufacturing method for detection device
AssigneeFujitsu Limited
InventorsSatoru Momose, Michio USHIGOME, Osamu Tsuboi
Life of this patent
Estimating the term…
Abstract
A detection device includes, a first electrode, a second electrode, a conductor including at least a surface portion made of gold or platinum group metal, which extends from the first electrode to the second electrode so as to make an electric conduction between the first electrode and the second electrode, and a p-type semiconductor provided between the surface portion of the conductor and at least one of the first electrode and the second electrode so as to make an electric connection between the surface portion of the conductor and at least one of the first electrode and the second electrode.
Claims19
A detection device comprising:
- a first electrode and a second electrode;
- a conductor including at least a surface portion made of gold or platinum group metal, which extends from the first electrode to the second electrode so as to make an electric conduction between the first electrode and the second electrode;
- and
- a p-type semiconductor provided between the surface portion of the conductor and at least one of the first electrode and the second electrode so as to make an electric connection between the surface portion of the conductor and at least one of the first electrode and the second electrode.
A measurement apparatus comprising:
- a detection device including:
- a first electrode and a second electrode,
- a conductor including at least a surface portion made of gold or platinum group metal, which extends from the first electrode to the second electrode so as to make an electric conduction between the first electrode and the second electrode, and
- a p-type semiconductor provided between the surface portion of the conductor and at least one of the first electrode and the second electrode so as to make an electric connection between the surface portion of the conductor and at least one of the first electrode and the second electrode;
- a resistor connected in series with the detection device;
- a power supply configured to supply a DC voltage to the detection device and the resistor;
- a potentiometer configured to measure a potential difference between the first electrode and the second electrode of the detection device;
- and
- a converter configured to convert a resistance change calculated based on a change in a potential difference at a predetermined time into a hydrogen sulfide concentration.
A manufacturing method for a detection device, the method comprising:
- forming a first electrode and a second electrode;
- forming a conductor including at least a surface portion made of gold or platinum group metal, which extends from the first electrode to the second electrode so as to make an electric conduction between the first electrode and the second electrode;
- and
- forming a p-type semiconductor between the surface portion of the conductor and at least one of the first electrode and the second electrode so as to make an electric connection between the surface portion of the conductor and the at least one of the first electrode and the second electrode.
Dependencies are inferred from the claim text.