Aluminum Oxide is suited for disc drive industry.

Press Release Summary:

With hardness and dielectric strength suited for recording read/write heads (TFHs) in disk drives, AL-995TM Aluminum Oxide (A1203) is high-purity alumina ceramic of 99.5% content with consistent homogeneity, density, grain size, and overall physical tolerances. Alumina is RF-sputter-deposited to 25 microns to undercoat and overcoat thin-film magnetic TFHs, exhibiting suitable mechanical, thermal, and electrical resistivity.

Original Press Release:

Morgan Advanced Ceramics Offers Aluminum Oxide for the Disc Drive Industry

High Hardness and Dielectric Strength Are Ideal for Recording Read/Write Heads

The Wesgo Ceramics Division of Morgan Advanced Ceramics (MAC), a leading manufacturer of innovative ceramic, glass, metal, and engineered coatings, offers AL-995TM Aluminum Oxide (A1203), a high purity alumina ceramic of 99.5% content, for the disc drive industry. Valued for its high hardness and dielectric strength, the RF-sputter-deposited alumina is used to undercoat and overcoat the thin-film magnetic recording read/write heads (TFH) in a disk drive. These TFH heads ride on an aerodynamic slider, which is located on a suspended moving arm, one micro inch above a disk spinning at over 10,000 rpm.

The unique formulation and manufacturing process offered by Wesgo Ceramics produce an alumina of consistent homogeneity, density, grain size and overall physical tolerances. The final sputtered 25-micron layer of aluminum oxide is comprised of the ideal mechanical, thermal and electrical resistivity for TFH heads, providing the target user with a reliable uniform coating, maximum target usage and minimum tool downtime.

In order to eliminate scrap wafers and arcing within the tool, Wesgo Ceramics processes the raw alumina within extremely tight controls. This ensures homogeniety of the target and reduces uneven sputtering conditions that can result from minute density variation. Additionally, Wesgo Ceramics' AL-995TM formulation of Aluminum Oxide (A1203) does not have the high concentrations of sodium and other detrimental impurities which are found in some high purity aluminas.

About Morgan Advanced Ceramics
Morgan Advanced Ceramics (MAC) manufactures products from a comprehensive range of materials. Supplying to a variety of demanding markets, MAC has established an enviable reputation for providing value-added solutions through world-class research and development, innovative design and, perhaps most important of all, application engineering.

As subsidiaries of The Morgan Crucible Company, Morgan Advanced Ceramics and Morgan Electro Ceramics form part of the Morgan Technical Ceramics Group. With manufacturing locations in North America, Europe and Asia, Morgan Technical Ceramics supplies an extensive range of products, including ceramic components; braze alloys, ceramic/metal assemblies and engineered coatings. For more information on Morgan Advanced Ceramics visit or contact one of our sales offices below:

UK & Eire
Morgan Technical Ceramics, Bewdley Road, Stourport, Worcestershire, DY13 8QR; Tel: +44 1299 872210; Fax: +44 1299 872218; Email:

Mainland Europe
Morgan Technical Ceramics, Teplitzer Str. 27, D-84478 Waldkraiburg, Germany; Tel: +49 8638 6004 326; Fax: + Fax: +49 8638 6004 327; Email:

North America
Morgan Technical Ceramics Inc, 26 Madison Road, Fairfield, NJ 07004, USA; Tel: 1 800 433 0638; Fax: 1 973 808 2257; Email:

Morgan Technical Ceramics, 158 Jiajian Road, Jiading, Shanghai 201818, People's Republic of China; Tel: +86 21 5990 0687; Fax: +86 21 5990 3241; Email:

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