materials
We are the innovation leader in the ceramic package business. Co-fired ceramic technology was invented in our Chattanooga facility
over 45+ years ago, and today we continue to lead the industry in innovative uses and designs.
- Alumina (92% AI2O3) – HTCC
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Alumina is the most popular ceramic material for multilayer packages. In constant use and development for years, its
performance is well-characterized, with a proven track record.
Alumina offers high strength, good thermal conductivity, hermeticity, excellent electrical properties and the lowest
cost high density interconnect. HTCC is available in both white and black.
- Aluminum Nitride (AlN)
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Due to its high thermal conductivity and excellent Coefficient of Thermal Expansion (CTE) match to silicon, aluminum
nitride is the ceramic material of choice for high heat dissipation and/or large chip applications. AdTech's aluminum nitride is produced using hot press technology. Ideal for applications requiring very high thermal conductivity
(160W/mK). The patented hot press process allows precision tolerances(±0.15%).
Aluminum nitride's primary application is for MCMs requiring multiple internal metal patterns (30+ layers possible)
with vias only terminating on the top and bottom surfaces. The external metal patterns are applied using thin film
processing on a precision surface finish having a standard flatness better than .001" / inch.
- Other materials include
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- HD Alumina with Thin Film
- Pt Co-Fire
- >99.5% Alumina (Injection Molding)
- Zirconia Toughened Alumina (Injection Molding)
- Beryllium Oxide (BeO)
Custom materials can be developed to meet special needs.
Properties
Ceramics are inorganic, non-metallic materials that have been processed at high temperatures to attain desirable engineered properties.
Properties such as high and low temperature stability, low thermal expansion, excellent electrical resistivity, desirable dielectric
constants, mechanical strength, and thermal shock resistance make ceramics ideally suited for environments where other
materials fail.
- Strength
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Ceramics' extreme hardness, high compressive strengths, mechanical robustness and dimensional stability lead to long-term
reliability, even under extreme conditions. We continuously optimize our materials and processes to ensure that
we deliver the best performing products in the world.
- Durability
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Mission-critical components need to perform in some of the most challenging environments, from deep in the earth to
outer space. Ceramics are known for incredible durability; archaeologists continue to discover prehistoric ceramic
artifacts, some over 20,000 years old. Today, we build upon our 100+ years of experience producing ceramic parts using
the most advanced ceramic processing techniques. Wear and corrosion resistance, temperature and dielectric stability,
and consistent predictable performance are all hallmarks of technical ceramics.
- Precision
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Advanced applications demand precision. Parts are designed to be smaller and smaller, while the need for accuracy increases.
Our high reliability products advance numerous technologies with recent improvements in metallization, plating,
and sealing processes. Today, more design options are available taking advantage of the increased production precision.
And, as technologies for grinding, lapping, and polishing improve, we incorporate these advancements–bringing
real benefit to space, medical, sensor, and other industries.
