Next-Generation High-Conductivity, High-Strength Alloy CAC™18
Achieving both 80%IACS electrical conductivity and high strength in the 500-600MPa range
CDA No.18070
C18070 alloy for power devices such as SiC, offering 80%IACS conductivity and 500-600MPa range tensile strength, contributing to improved heat dissipation and suppression of deformation caused by thermal stress.
Features
- CAC18 offers 80%IACS conductivity and 500-600MPa range tensile strength. Contributing to enhanced heat dissipation and reduced thermal stress deformation in power devices.
- CAC18 offers excellent heat resistance, suppressing degradation of strength during thermal processes in semiconductor package manufacturing.
- CAC18 has non-magnetic properties and is well suited for applications such as sensor devices.
- This alloy is based on the C18070 composition, offering multi sourcing availability of equivalent materials.
ApplicartionsNote: Including intended use
- Internal heat-dissipation frame for next-generation power devices
- IC packages for sensor devices
Chemical Compositions
Cu-0.25Cr-0.05Ti-0.02Si (wt%)
Characteristics
Physical Properties
| Specific Gravity | 8.9 |
|---|---|
| Coefficient of Thermal Expansion (293～573K) | 17.7×10-6/K |
| Thermal Conductivity (293K) | 334 W/m・K |
| Electrical Resistivity (293K) | 21.6 nΩ・m |
| Electrical Conductivity (293K) | 80 ％IACS |
| Modulus Elasticity (293K) | 138 GPa |
- Note: Typical values
Mechanical Properties
| Temper | Tensile Strength (MPa) |
Elongation (％) |
Vickers Hardness (HV) |
|---|---|---|---|
| H | 520～640 | 5 min. | 140～200 |
- Note: Tensile strength and hardness are standard specifications. Technical specifications will be determined according to consumer requests.
90°W-Type Bend-Formability (MBR)
| Temper | Good Way | Bad Way |
|---|---|---|
| H | 0.5 | 1.0 |
- Note: The above are typical characteristics. The value slightly varies depending on the thickness of specimens.
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