Method for preventing operational and manufacturing...

Metal working – Piezoelectric device making

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C029S831000, C310S340000, C360S292000, C360S294400, C360S294300

Reexamination Certificate

active

07065845

ABSTRACT:
A method for preventing operational and manufacturing imperfections in piezoelectric micro-actuators by physically and electrically isolating conductive layers of the piezoelectric material. At least one layer of electrically-conductive material and at least one layer of electrically-insulative material are applied to an actuator finger. The conductive material and the insulative material are applied one layer upon another in an alternating manner. The layer of insulative material is larger in area than the layer of conductive material. An insulative layer, applied to the actuator finger and sandwiching a conductive layer between the insulative layer and the actuator finger, at least partially encloses and electrically isolates the conductive layer by covering the conductive material on at least three sides.

REFERENCES:
patent: 2657320 (1953-10-01), Ziegler
patent: 4056654 (1977-11-01), Kompanek
patent: 4583135 (1986-04-01), Kimura
patent: 4891723 (1990-01-01), Zak
patent: 5305168 (1994-04-01), Lin et al.
patent: 5875531 (1999-03-01), Nellissen et al.
patent: 6108175 (2000-08-01), Hawwa et al.
patent: 6198606 (2001-03-01), Boutaghou et al.
patent: 6262516 (2001-07-01), Fukuda et al.
patent: 6617762 (2003-09-01), Kurano et al.
patent: 6690551 (2004-02-01), Shiraishi et al.
patent: 64-11382 (1989-01-01), None
patent: 3-203384 (1991-09-01), None
Wang et al., “Deflection Characteristics of a Trapezoidal Multilayer In-Plane Bending Piezoelectric Actuator”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 48, No. 4, Jul. 2001, pp. 1103-1110.
PCT Search Report PCT/CN02/00392 dated Jun. 5, 2002.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for preventing operational and manufacturing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for preventing operational and manufacturing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preventing operational and manufacturing... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3660798

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.