Patent ID: 7866043

Claim:
A method of flatting evaporating section of a heat pipe embedded in a heat dissipation device, the method comprising the following steps: providing at least a heat pipe and a base and a plurality of fins of the heat dissipation device to be thermally connected with the heat pipe, the base defining at least a groove for the heat pipe being embedded therein; positioning an evaporating section of the heat pipe on the groove of the base and engaging a condensing section of the heat pipe with the fins; pressing the evaporating section of the heat pipe to embed the evaporating section into the groove of the base with a partial uneven surface of the evaporating section protruding out of the base; flatting the protruded uneven surface of the evaporating section of the heat pipe by polishing performed with a polishing device including a working station, a fixing board, and a flatting unit, the working station defining a sliding groove configured for sliding the fixing board into the working station therefrom, the fixing board defining a receiving groove and a concave being defined in the receiving groove configured for fixing the base of the heat dissipation device, which further includes the steps of: positioning the base of the heat dissipation device on the concave via the receiving groove of the fixing board; and sliding the fixing board with base of the heat dissipation device fixed thereon into the working station via the sliding groove for making the protruded uneven surface of the evaporating section of the heat pipe facing the flatting unit.