Patent ID: 6986189
Filing Date: 2006-01-17
Classification: B41J,H01L,Y10T

Abstract:
1. A method of manufacturing a piezoelectric vibrator unit, comprising the steps of: (a) preparing a green sheet made of a piezoelectric material and in which through holes are opened in at least one of a first region thereof which is to be a vibrating region of the piezoelectric vibrator and a second region thereof which is to be a non-vibrating region of the piezoelectric vibrator; (b) forming a first conductive material layer to be a segment electrode on the first region of the green sheet and a second conductive material layer to be a common electrode on the second region of the green sheet, such that a non-conductive region having no conductive material is formed between the first conductive material layer and the second conductive material layer, and such that the through holes are filled with a conductive material of at least one of the first conductive material layer and the second conductive material layer; (c) repeating step (a) to prepare another green sheet having the first region and the second region, and laminating the another green sheet on the first conductive material layer and the second conductive material layer such that the non-conductive region is covered with the piezoelectric material of the another green sheet; (d) repeating step (b) to form another first conductive material layer, another second conductive material layer and another non-conductive region on the another green sheet; (e) repeating the steps (a) through (d) to stack a required number of layers; (f) baking the stacked required number of layers to form a single piezoelectric material diaphragm; and (g) forming slits on the piezoelectric material diaphragm so as to elongate to an area where at least the first conductive layers are separated from each other to constitute piezoelectric vibrators.