Patent ID: 7090394

Claim:
A ceramic susceptor including a temperature gauge for gauging the temperature of a temperature-gauging site in the susceptor, the temperature gauge comprising: a thermocouple having a tip end; a temperature-gauging contact exposed in the tip end of said thermocouple and contacting, exposed as it is, the temperature-gauging site in the susceptor; and a detachable retaining member that either screws together with or is screwlocked into the susceptor, for clamping said temperature-gauging contact in between said retaining member and the susceptor, thereby mechanically pressing upon said temperature-gauging contact to retain it against the temperature-gauging site, said retaining member in an end face thereof being furnished with a recess into which a communicating through-hole opens, so that said temperature-gauging contact in the thermocouple tip and lead lines accompanying said contact can be housed in the recess, and said recess in depth measuring less than the thermocouple lead lines in diameter.