The photosensitive sensor is currently the highest yield, the most widely used sensor, exist in the form of photosensitive resistance, along with the change of light intensity, the resistance value is also relatively change, resulting with the light intensity of the pulse signal. The structural elements of common cadmium sulphide photosensitive electrode are: electrode / cadmium sulfide / ceramic substrate / wire / resin moisture-proof film, etc.. Ceramic substrates have been widely used in photosensitive resistors. Product features: The ceramic circuit board has high accuracy and good electrical and thermal properties 2. Ceramic circuit board with high bonding strength and good weldability, can realize blind through hole 3. Ceramic circuit board technology is mature, environmental protection, pollution-free, cost is lower than traditional technology 4., a wide range of applications, single-sided and double-sided three-dimensional ceramic circuit boards can be produced 5. Customized production, without mold opening, short production cycle 6., no organic ingredients, resistant to cosmic radiation, high reliability in aviation and space, long service life. 7. Can carry out high-density assembly, line / pitch (l/s) resolution can reach 20 m, so as to realize the integration and miniaturization of equipment. 8. High frequency loss, it can be used in high frequency circuit. 9. Copper sealing, high reliability. 10. 3d substrate and 3d routing. 1. Ceramic circuit board appearance size is not limited 2., ceramic laser printing, three-dimensional routing 3. Ceramic circuit board without mask, fast response 4. Ceramic circuit board technology is mature, environmental protection, pollution-free