Active Brazing Filler Metal/Copper Clad Material
AgCuTi alloy and its clad metal variants (AgCuTi/Cu, AgCuTi/Kovar, AgCuTi/Alloy 42) are active brazing materials engineered for ceramic-to-metal and ceramic-to-ceramic hermetic joining without pre-metallization.
Technical data
| Products: | AgCuTi/Cu, AgCuTi/Kovar, AgCuTi/42 alloy | Strip Thickness: | 0.015–1.5 mm |
| Strip Width: | 3–100 mm | Cladding Layer Thickness: | 0.001–70% of total thickness |
| Cladding Layer Width: | 1–100 mm | Cladding Layer Tolerance: | +20% to -10% of cladding layer thickness |
| Performance: | Customized |
Features & Benefits
Active Brazing Capability
Ti element reacts with ceramic surfaces to form chemical bonding, eliminating the need for costly Mo-Mn metallization.
CTE Tailoring
Copper, Kovar or Alloy 42 core controls thermal expansion to match Al2O3/AlN ceramics, preventing crack under thermal shock.
High Hermeticity
Achieves He leak rate ≤1 × 10-9 Pa·m³/s, suited for vacuum and high-reliability packages.
Process Simplification
Clad strips replace the discrete “active foil + base metal” assembly, resolving alignment challenges and supporting automated brazing.
Miniaturization Support
Ultra-thin clad (0.1–0.3 mm) enables flat lids and micro-packages for crystal oscillators and surface acoustic wave (SAW) filters.
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