Method for manufacturing variable capacitance pressure transducers
A method for
manufacturing variable capacitance pressure transducers and an
intermediate article of manufacture produced in the practice of this
method. In the method, a wafer of doped silicion or other semiconductor
material has portions of the semiconductor material removed from spaced
areas to form a plurality of recesses in the surface of the
semiconductor material. The material is doped to enhance its electrical
conductivity. A dielectric material has one of its surfaces coated with
spaced areas of electrically conductive material.
The
semiconductor material is attached to the coated surface of the
dielectric material such that the surface recesses in the semiconductor
material are in alignment with the conductive areas on the dielectric
material. This produces a plurality of electrical capacitors suitable
for use as pressure transducers. The capacitance of these transducers is
varied as a function of changes in one or more fluid pressures acting in
the plates of each of the capacitors, one of these plates being the
doped semiconductor material and the other being a conductive area on
the dielectric material. Fluid pressure between the plates may be
established during manufacture. The intermediate article of manufacture
produced by this process may then be cut into a plurality of separate
pressure transducers.
Find What You Are
Looking For?
Can't
find the one you're looking for? Search our database of over 1, 000, 000
Information
Quick
Search
Assist us in keeping
this site ONLINE by adding to your
Bookmarks!!
Thank you for your
support