Tape casting is a fabrication technique of thin ceramic sheets with large surface areas which are used mainly in the electronic industry as substrates and multilayered capacitors. The process consists essentially in forming a slurry and in casting it through a doctor blade on a generally moving surface. After drying, a flexible, resistant tape is produced which can be then sintered. In this review some theoretical concepts involved in the slurry formulation, as well as technical points of the tape casting process are discussed.