Metal working – Piezoelectric device making
Patent
1986-10-22
1988-09-13
Echols, P. W.
Metal working
Piezoelectric device making
310363, 310364, H04R 1700
Patent
active
047698829
ABSTRACT:
A piezoelectric sensing element is formed from bonding two piezoelectric layers with an intermediate metallic film. The intermediate metallic film is comprised of two separate films, which were sputtered onto the inner surfaces of the respective piezoelectric layers, which are then placed in contact with each other. The combination of piezoelectric layers and film is next heated at an elevated temperature for fusing the respective sputtered alloy films so that the piezoelectric layers are bonded into a piezo-pair sensor. The layers to be joined are chamfered so that the center electrode appears as a notch on the finished piezo-pair to allow a connection to the center electrode for poling and sensing.
REFERENCES:
patent: 2709147 (1955-05-01), Ziegler
patent: 3281612 (1966-10-01), Hatschek
patent: 3448503 (1969-06-01), Trott et al.
patent: 3590467 (1971-07-01), Chase et al.
patent: 3897628 (1975-08-01), Hanak et al.
patent: 3924312 (1975-12-01), Coussot et al.
patent: 3986251 (1976-10-01), Altemus et al.
patent: 4042951 (1977-08-01), Robinson et al.
patent: 4109031 (1978-08-01), Marscher
patent: 4295373 (1981-10-01), Moffatt
Rosen Carol Z.
Wittke Ernest C.
Davis David L.
Echols P. W.
The Singer Company
LandOfFree
Method for making piezoelectric sensing elements with gold-germa 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 making piezoelectric sensing elements with gold-germa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making piezoelectric sensing elements with gold-germa will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-799012