Laser Trimming Application

LASER TRIMMING

In order to improve the accuracy of thick film circuit, the resistance must be adjusted. Because of the inherent inaccuracy of thick-film screen printing operation, the inhomogeneity of the substrate surface and the non-repeatability of sintering conditions, the thick-film resistance often has positive and negative errors. If the resistance exceeds the nominal value, it will not be able to correct. However, in general, the resistance after printing and firing is about 30% lower than the target value, so it should be adjusted by laser. To the target value.