METHOD FOR MANUFACTURE OF HERMETIC SEAL COVER

The present invention is, in a hermetic seal cover including a seal cover main body and an Au-Sn brazing material fused to a surface of the seal cover main body, a hermetic seal cover characterized in that surface roughness defined by JIS B0601 of the surface of the aforesaid seal cover main body to which the Au-Sn brazing material is fused is 0.005 to 0.25 µm. Here, the Au-Sn brazing material is preferably fused after Au plating is applied to the seal cover main body, and by making the thickness of the Au plating 0.003 to 0.05 µm, a seal cover without inflow of the brazing material to the inside of the package at the time of sealing can be provided.