Patent ID: 6804885
Filing Date: 2004-10-19
Classification: H04R,Y10T

Abstract:
In a method of manufacturing a printer device having a pressuring chamber communicating with a liquid emission hole, a vibrating plate forming a portion of a sidewall section of said pressuring chamber, and a piezoelectric device arranged in contact with the vibrating plate, in which a liquid in said pressurizing chamber is emitted via said liquid emission hole by displacement of said piezoelectric device and the vibrating plate, wherein the improvement resides in thatsaid vibrating plate has first and second layers; and in that the manufacturing method comprises a step of forming the piezoelectric device in contact with said second layer; a step of processing said piezoelectric device by spraying powders or particles; and a step of removing an area of said second layer not covered by said piezoelectric device by wet etching.