Patent ID: 6403510
Filing Date: 2002-06-11
Classification: C04B,H05K

Abstract:
An aluminum nitride sintered body mainly including an aluminum nitride and also including a compound of at least one type of rare earth element (R) selected from a group of lanthanum (La), cerium (Ce), praseodymium (Pr), samarium (Sm), europium (Eu), an yttrium compound, a calcium compound, and an aluminum compound other than an aluminum nitride, wherein a total content of oxygen forming Al2O3 existing in an aluminate including each of said rare earth element (R), yttrium, calcium and aluminum compounds and oxygen forming independently existing Al2O3 is 0.01 to 5.0% by weight, heat conductivity is 166 to 200 W/mK, and bending strength is at least 300 MPa.