99.6% Al2O3 (Aluminum Oxide) 4.0" X 4.0"X .015" ± .0005" Lapped Both Sides 10µ-in nominal

Aluminum Oxide (Al203)

Aluminum Oxide is the standard microelectronic substrate material for the vast majority of applications. Although it has low thermal conductivity - it has excellent mechanical and electrical properties and is used in DC to High Frequency applications. Al2O3 is available in standard 96% grade for low cost, general electronics and 99.6% for higher frequency applications. Aluminum Oxide is the first and only choice for many designers.

Aluminum oxide ceramic substrates possess:

• High mechanical strength
• Low Thermal Conductivity
• Good Dielectric properties
• Excellent high temperature characteristics
• Excellent metalizing properties for thick film, thin film, and DBCu films
• Excellent electrical insulation
• Good corrosion and wear resistance
• Available in as-fired, lapped, and polished grades

Material specifications (PDF)