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YOUR VENDOR BASE
SLC is your
global independent source for obsolete,
hermetic,
hard to find, DMS, discontinued
semiconductors and vacuum tubes. SLC offers hermetic components and
vacuum
tubes that are obsolete or difficult to find. SLC is proud of
its heritage that dates back to 1965 specializing in industrial, military
and aerospace applications. With greater than 35 years of experience,
SLC guarantees and certifies that all products meet or exceed ordered
electrical specifications. Our mission statement is to provide our
customers with high quality products and exceptional levels of service.
Our in-house test services and DMS product support continually provide
turnkey solutions for problems with the acquisition and processing
of obsolete
and end of life components.
With greater
than 100 million hermetic
discrete and die/wafer
components in stock, SLC can meet your immediate needs with test
and selection capabilities. SLC maintains a Class 1000 cleanroom for
die and wafer activities in addition to extensive test capabilities
for custom semiconductor selections and certifications.
SLC maintains
a quality system in accordance with MIL-I-45208, MIL-STD-1285 and
has earned the ISO 9001:2000 certification.
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our mailing list to receive inventory updates and SLC Specials.
SLC purchases
excess hermetic and die/wafer inventory. Please contact us with your
excess inventory.
Policy
SLC's
policy is to deliver products and services which, as a minimum, meet
our customers' agreed requirements on time. We strive to offer products
and services which exceed customer expectations and increase customer
satisfaction through superior performance.
Types
of semiconductors
Pure
or intrinsic semiconductors.
An
intrinsic semiconductor is one which is pure enough that impurities
do not appreciably affect its electrical behavior. In this case, all
carriers are created by thermally or optically exciting electrons
from the full valence band into the empty conduction band. Thus equal
numbers of electrons and holes are present in an intrinsic semiconductor.
Electrons and holes flow in opposite directions in an electric field,
though they contribute to current in the same direction since they
are oppositely charged.
Extrinsic
semiconductors.
An
extrinsic semiconductor is one that has been doped with impurities
to modify the number and type of free charge carriers.
