AU-Sn Lid

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　　Material:

　　• Pre-Solder: Au-Sn pre-solder AU-SN8020.

　　• Lid Plate: Gold-plated lid plates 4J42/4J29.

　　Airtightness:

　　• Helium Leak Rate: 510^-9 PAM^3/S ≤

　　Quality and Inspection Results:

　　• Alignment: The offset between the Au-Sn ring and the lid plate is less than 0.05mm.

　　• Solder Spillage: No apparent spillage around the solder joint.

　　• Solder Melt: After melting, the solder around the edges is fully melted and continuous, with a bright appearance.

　　• X-Ray Inspection: Cavity rate less than 15% with no through-holes.