Patent ID: 11892423
Assignee: SUMITOMO CHEMICAL COMPANY LIMITED
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. A method for producing a sensor, the method comprising:
a step of providing a substrate;
a step of forming a second electrode on the substrate;
a step of forming on the second electrode a detection film having a resin as a main component;
a step of roughening at least a part of the surface of the detection film opposite to the second electrode to form a rough surface; and
a step of forming a first electrode by plating on a region including the rough surface of the surface of the detection film,
wherein the rough surface has a root mean square roughness (Sq) of 0.5 μm to 2.5 μm, wherein the rough surface is on a side of the sensor exposed to an external environment
wherein the sensor has flexibility,
wherein the detection film is a moisture-sensitive film, and
wherein the moisture-sensitive film is formed from a resin composition containing a polyimide resin component.