Humidity and Temperature Sensors on Flexible Transparency Sheets

摘要

Inexpensive humidity sensors having simple design and short transient times are developed using transparency sheets as substrates. Aimed at settling and monitoring the substrate temperature, temperature sensors and heaters can be patterned on the bottom and top faces of double side copper coated sheets. Patterning is achieved through a simple approach that minimizes exposure to hazardous chemicals, and avoids time consuming processes including application of photoresist coatings and selective exposure to ultraviolet light.