Claims
- 1. A method of producing a piezoelectric element comprising
forming a piezoelectric body material having a layered perovskite structure into a green sheet; printing an electrode paste onto the green sheet at a plurality of positions such that the resulting electrode paste printings are substantially parallel to each other on the green sheet; laminating a plurality of said green sheets such that the electrode paste printings are interposed between piezoelectric body material, whereby a laminate is formed; firing the laminate such that the C axes of the piezoelectric body materials are oriented substantially parallel to the lamination direction of the laminate, and polarizing the fired laminate substantially perpendicular to the orientation direction of the C axes.
- 2. A method of producing a piezoelectric element according to claim 1, wherein the plurality of green sheets are laminated such that an electrode paste printing on each of at least two green sheets overlap one another in the lamination direction.
- 3. A method of producing a piezoelectric element according to claim 2, wherein the electrode paste printings are effected in substantially straight lines.
- 4. A method of producing a piezoelectric element according to claim 3, wherein each electrode paste printing has first and second ends, and including disposing a conductor at said first end and an insulator at said second end.
- 5. A method of producing a piezoelectric element according to claim 4, wherein said disposing a conductor at said first end and an insulator at said second end is effected such that the first end of one of a pair of adjacent parallel printings is adjacent the second end of the other of the pair of adjacent parallel printings.
- 6. A method of producing a piezoelectric element according to claim 5, including electrically connecting first ends of printings which overlap one another in the lamination direction to the same potential.
- 7. A method of producing a piezoelectric element according to claim 6, wherein the piezoelectric ceramic body is selected from the group consisting of Na0.5Bi4.6Ti4O15, CaBi4Ti4O15, SrBi4Ti4O15 and Bi4Ti3O12.
- 8. A method of producing a piezoelectric element according to claim 1, wherein the laminating is such that a plurality of electrodes are arranged in an interdigital electrode form.
- 9. A method of producing a piezoelectric element according to claim 1, wherein the electrode paste printings are effected in substantially straight lines.
- 10. A method of producing a piezoelectric element according to claim 9, wherein each electrode paste printing has first and second ends, and including disposing a conductor at said first end and an insulator at said second end.
- 11. A method of producing a piezoelectric element according to claim 1, wherein each electrode paste printing has first and second ends, and including disposing a conductor at said first end and an insulator at said second end.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2000-023707 |
Feb 2000 |
JP |
|
Parent Case Info
[0001] This application claims priority of U.S. patent application Ser. No. 09/773,951 filed Feb. 1, 2001.
Divisions (1)
|
Number |
Date |
Country |
Parent |
09773951 |
Feb 2001 |
US |
Child |
10033929 |
Dec 2001 |
US |