Ceramic Materials Used In Electronics

Ceramic insulators like alumina are also very good heat conductors.

Ceramic materials used in electronics.

Ceramics used for this type of applications are called functional ceramics. The insulating properties of ceramics are well known and these properties have found application in advanced ceramic materials for substrates and packages. When the electronics unit is working it generates heat and the alumina backing conducts the. The composition of engineered ceramics makes them highly effective electric insulators which is how they are most commonly used though ceramics can also be carefully processed and specified for conductivity to fit the application.

Its specific electrical resistance reaches 10 16 ω cm at room temperature while at 1600 c it still reaches a level of 10 6 ω cm. Advanced ceramics in electronics ceramic substrates circuit carriers core materials and many other components are in use throughout the electronics industry. They can be used as backing material or mounting brackets to which other electrical components are attached for example the electronic systems in a modern car are mounted on alumina. This includes the four types of companies identified in section 1.

Ceramic materials are used in electronics because depending on their composition they may be semiconducting superconducting ferroelectric or an insulator. These companies make most consumer products pcbs and virtually anything with. Clay bricks tiles glass and cement are probably the best known examples. Al 2 o 3 ceramic with purity up to 99 9 remains one of the most commonly used oxide ceramic electrical insulating materials even today.

Much of the processing and assembly of electronic ceramics are done in areas of the world with very low labor costs. For example ceramic heat sinks provide the right climate for high power electronics. Nimn 2 o 4 materials are widely used in industry as the basis for the production of ceramic temperature sensors due to its electrical properties characterized by a negative temperature coefficient. Engineered ceramics exhibit superior dielectric attributes when compared to other materials like plastics or metals.

Ceramic materials are used in a wide range of applications from power distribution to smartphones. The nearly 4 5 trillion global electronics industry would not exist without ceramics. Ceramics are more than pottery and dishes. Ceramic based components are indispensable in products such as smartphones computers televisions automotive electronics and medical devices.

Abdullahi in reference module in materials science and materials engineering 2016.