InSealing produces metalized ceramic, and ceramic feedthrough used in military, aerospace, medical, and high-reliability industrial applications. Ceramics are extremely reliable in high vacuum applications and compatible with metals such as Titanium, AlSi, Kovar, Ally42, CuMo, and CuW.
Metallized ceramics, Ceramic feed-throughs can support high-frequency applications up to 30GHz and offer a coplanar surface for wire bonding.
Ceramic Material is 96% Alumina
| No | Item | Unit | Value |
| 1 | Purity | % | ≥95 |
| 2 | Volume density | g/cm3 | ≥3.6 |
| 3 | Water absorption | % | 0 |
| 4 | Thermal conductivity | W/m·K( 25℃) | 22.4 |
| 5 | Coefficient of thermal expansion | X(10-6)/℃ (20-1000℃) | 8.2 |
| 6 | Flexural strength | Mpa | 340 |
| 7 | Compressive strength | Mpa | 2103 |
| 8 | Tensile strength | Mpa | 193 |
| 9 | Hardness | ROCKWELL 45N | 78 |
| 10 | Withstand voltage | K Vac/mm | 8.3 |
| 11 | Dielectric constant | @1MHz | 9.1 |
| 12 | Dielectric loss angle | @1MHz | 0.0004 |
| 13 | Volume resistivity | @25℃ | 1×10-14 |
| @500℃ | 4×10-9 | ||
| @1000℃ | 5×105 |
Ceramic Metallization Layer:
- Ceramic + Mo/Mn Metallized + plating Ni
- Ceramic + Mo/Mn Metallized + plating Ag
- Ceramic + Mo/Mn Metallized + plating Au
- Ceramic + printing Ag
- Other Custom Metallization Layer as requested.
Type of Plating:
- Electroless Gold
- Electrolytic Gold
- Electrolytic Nickel
Brazed Component Materials:
- Alloy 194
- Alloy 42
- Copper Alloy
- Kovar
- Molybdenum
Applications:
- Optoelectronic Packages
- Hermetic / High-Frequency Feedthroughs
- Ceramic/Metal Packages
- Microwave Packages
- Multichip Modules
- Power Dissipation Packages
- Optical Packages
- High Lead Count Packages
