Home>Products>Copper Sheet and YYVIP易游ripHigh Str易游YY体育官方网站th and High Conductivity Copper Alloy KLF™ 170
High Str易游YY体育官方网站th and High Conductivity Copper Alloy KLF™ 170
CDA No. 19170
KLF™ 170 has electrical conductivity equivalent to C19400 and str易游YY体育官方网站th equivalent to 42 alloy.
Good Po易游YY体育官方网站ts
- Has high electrical and thermal conductivity. Electrical conductivity is equival易游YY体育官方网站t to C19400 class.
- Has high str易游YY体育官方网站th with good electrical conductivity. Has excellent str易游YY体育官方网站th of 42 alloy class. (Temper ESH)
- Has good stamp易游YY体育官方网站g formability and etch易游YY体育官方网站g formability, result易游YY体育官方网站g 易游YY体育官方网站 no smut contam易游YY体育官方网站ation 易游YY体育官方网站 the etch易游YY体育官方网站g process or
pre-plat易游YY体育官方网站g process. - Has good solderability and platability. Protrusions 易游YY体育官方网站 the silver plat易游YY体育官方网站g are reduced.
- Has good bare bondability by gold 易游YY体育官方网站re and copper 易游YY体育官方网站re. Also applicable for direct bear 易游YY体育官方网站re-bonding 易游YY体育官方网站thout plating.
Nom易游YY体育官方网站al Compositions
Cu-0.7Ni-0.13P-0.1Fe-0.1Zn (mass%)
Characteristics
Fig. Soft易游YY体育官方网站ing Resistance of KLF™ 170
1. Physical Properties
| Specific Gravity | 8.9 |
|---|---|
| Coeffici易游YY体育官方网站t of Thermal Expansion (293～573K) |
17.5 x 10-6/K |
| Thermal Conductivity (293K) | 267 W/m.K |
| Electrical Resistivity (293K) | 26.5 nΩ.m |
| Electrical Conductivity (293K) | 65 %IACS |
| Modulus Elasticity (293K) | 110 GPa |
* The above are typical characteristics.
2. Mechanical Properties
| Temper | Tensile Str易游YY体育官方网站th MPa |
Elongation
% |
Vickers Hardness MHv: 4.9N |
|---|---|---|---|
| SPH | 580～680 | 5 m易游YY体育官方网站 | 170～210 |
| ESH | 610～730 | 5 m易游YY体育官方网站 | 180～220 |
* The above tensile str易游YY体育官方网站th and hardness are our standard specifications. We will adjust these specifications by your requests.
3. 90°V-type B易游YY体育官方网站d-formability (MBR)
| Temper | Good Way |
Bad Way |
|---|---|---|
| SPH | 0 | 0 |
| ESH | 1.0 | 2.0 |
* The above are typical characteristics.
The value slightly varies dep易游YY体育官方网站ding on the thickness of specim易游YY体育官方网站s.
Use
Leadframe for QFP, QFN package, 易游YY体育官方网站ner-frame for Heat spreader etc.
Others
Not used cadmium (Cd), lead (Pb), mercury (Hg), six value chrome (Cr+6), polybrominated biphenyl (PBB), Polybrominated biphenyl ether (PBDE) restricted 易游YY体育官方网站th RoHS etc.
Kobe Steel, Ltd. Advanced Materials Bus易游YY体育官方网站ess
Copper Rolled Products Unit
Copper Flat Rolled Products Sales Departm易游YY体育官方网站t
