High Conductivity and Heat Resistant Copper Alloy KFC™
Copper alloy with heat resistance superior to C14415 (Cu-0.15%.Sn)
CDA No. 19210
KFC™ is a precipitation-hardened copper alloy with fine Fe2P compounds in the matrix, formed by adding small amounts of iron and phosphorus to copper.
Features
- Excellent electrical and thermal conductivity
- Higher strength than pure copper and C14415
- Excellent bare bondability
- Excellent solderability and platability
- Heat resistant temperature above 400 degree, and higher than C14415
Applications
- Heat spreader for BGA
- Leadframe for transistors
Nominal Compositions
Cu-0.1Fe-0.03P (mass %)
Characteristics
Physical Properties
| Specific Gravity | 8.9 |
|---|---|
| Coefficient of Thermal Expansion (293-573K) | 17.5 x 10-6/K |
| Thermal Conductivity (293K) | 364 W/m.K |
| Electrical Resistivity (293K) | 18.2 nΩ .m |
| Electrical Conductivity (293K) | 90 %IACS |
| Modulus Elasticity (293K) | 125 GPa |
- *Note: The above are typical characteristics.
Mechanical Properties
| Temper | Tensile Strength MPa |
Elongation % |
Vickers Hardness MHv: 4.9N |
|---|---|---|---|
| O | 275–345 | 30 min | - |
| 1/4H | 295–370 | 15 min | 85–110 |
| 1/2H | 350–430 | 4 min | 100–130 |
| H | 390–470 | 2 min | 120–145 |
- *Note: The above tensile strength and hardness are standard specifications. Technical specifications will be determined according to consumer requests.
90°V-Type Bend-Formability (MBR)
| Temper | Good Way | Bad Way |
|---|---|---|
| 1/2H | 0 | 0 |
| H | 0 | 0 |
- *Note: The above are typical characteristics. The value slightly varies depending on the thickness of specimens.
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