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Thin ceramic substrates
from Alumina, Aluminum Nitride,
Steatite and Silicon Carbide, for critical applications, Valley Design will
thin to 0.001".
For critical thin film and thick film microelectronic
applications, thin Ceramic substrates are mandatory.
These substrates may be 99.6% Alumina, 96% Alumina,
Aluminum Nitride, Steatite or other similar materials.
Shapes may be square, round or rectangular and as large
as 300 mm. Valley Design Corp. has developed processes
to lap and polish various substrates down to 0.001"
thickness. The surface finish may be rough lapped in
the 30 to 40 microinch Ra range or micro-fine, mirror
smooth, polished to better than 0.5 microinch Ra.
A popular capacitor plate material is a 96% Alumina
substrate thinned to 0.004" (0.1 mm). Valley Design
stocks these thin 96% Ceramic substrates with a surface
finish of 15 to 20 microinch Ra. Steatite and 99.6%
substrate materials in various thickness are also available
for immediate delivery.
Substrate size does not always limit thinness. Valley
Design can supply 0.004" thick substrates 1"to
4". square. Valley provides precision grinding,
lapping and polishing of all substrate materials - hard
and soft and specializes ultra-thin, ultra-flat, super
polishing and tightness tolerances.
Related
Ceramic Web sites:
· www.acers.org
American Ceramic Society
· www.ultra-thin.com/chip-capacitors.htm
Ceramic substrates for thin chip capacitors
· www.valleydesign.com/substrate.htm
Aluminum Nitride and Alumina Ceramic substrates
· www.customdicing.com/capacitors.htm
Chip capacitors dicing, prototype and production |
