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Circular (Spiral) Flexible Polyimide (PI) Interdigitated Gold Electrodes (IDE) Used for Medical Sensor and Gas Sensor 1. Shape of the IDE: Circular (Sprial). 2. Overall size: 11.6mm*16.2mm. 3. The line width: 100μm; The line space: 100μm. 4. The conductive material layer: Cu/Ni/Au, whose thicknesses are 12μm,1μm,1μm respectively. 5. Substrate: Polyimide (PI), the thickness of PI: 13μm. 6. Suitable temperature for use : -50 degrees Celsius to +120 degrees Celsius. We offer all kinds of interdigitated electrodes, various sizes, various shapes, various substrate, various line spaces and various proceeds (Electroplating, MEMS, Thick film, Printing). Beside of the listing products, We can customize interdigitated electrodes according your needs. Please do not hesitate to contact us, if you have any requirments or questions.