Breakthrough welding solutions for hermetic encapsulation - - PowerPoint PPT Presentation
Breakthrough welding solutions for hermetic encapsulation Primoceler your partner for glass encapsulation GLASS WELDING UNIT ENGINEERING KNOW-HOW Laser based welding Solution specification tool and software for Laboratory
GLASS WELDING UNIT § Laser based welding tool and software for hermetic encapsulation § Tailored solutions for R&D and manufacturing ENGINEERING KNOW-HOW § Solution specification § Laboratory & clean room facilities for testing § Installation and training § Technical support and maintenance
30 µm
100 x magnification of welding seam 500 x magnification of welding seam
Cold soak on the left, hot soak on the right. Temperature sensor attachted to the sample.
§ Failure analysis were performed for the tested samples § No visual changes in the weld seams § Die shear strength test (MIL-STD-883) to ensure the mechanical properties of the weld § No changes in strength values compared to the tests performed earlier without temperature cycling
No changes in the weld seam (side view, etched).
Adhesive or frit
§ UV or high temperature curing necessary § Extra material needed: Might cause problems due to fumes or particles § Long term stability uncertain in varying environmental conditions § Problems with hermeticity
Primoceler welding
§ No adhesive or other extra materials needed § Good long term stability and 100% hermeticity § Small heat affected zone (HAZ) § Extremely thin welding seam: as thin as 30 µm possible § Superior bond strength § Highly repeatable process