Popular Design for Thermo Exchange Copper Foil - Copper Strip for Lead Frame – CIVEN
Popular Design for Thermo Exchange Copper Foil - Copper Strip for Lead Frame – CIVEN Detail:
Product Introduction
The material for lead frame is always made from alloy of copper, Iron and phosphorus, or copper, nickel and silicon, which have the common alloy No. of C192(KFC),C194 and C7025.These alloys have high strength and performance.C194 and KFC are most representative for copper, iron and phosphorus alloy, they are the most common alloy materials.
C7025 is the alloy of copper and phosphorus, silicon. It has high thermal conductivity and high flexibility, and do not need heat treatment, also it’s easy for stamping. It has high strength, excellent thermal conductivity properties, and very suitable for lead frames, especially for assembly of high density integrated circuits.
Copper alloys for lead frames are roughly divided into copper iron system, copper nickel silicon system, copper chromium system, copper nickel tin system (jk-2 alloy), etc. ternary and quaternary copper alloys can achieve better performance and lower cost than traditional binary alloys. Copper iron alloys have the most brands and have better mechanical strength, stress relaxation resistance and low creep, It is a kind of good lead frame material. Due to the needs of lead frame fabrication and packaging applications, in addition to high strength and high thermal conductivity, the materials are also required to have good brazing performance, process performance, etching performance, oxide film bonding performance, etc. The materials are developing in the direction of high strength, high conductivity and low cost. A small amount of various elements are added to copper to improve the alloy strength (so that the lead frame is not easy to deform) and comprehensive properties without significantly reducing the conductivity. The materials with tensile strength above 600MPa and conductivity greater than 80% IACS are the research and development hotspot. The copper strip is required to be high surface, accurate plate shape, uniform performance, continuous thinning of strip thickness, gradual thinning from 0.25mm to o.15mm and 0.lmm, and ultra-thin and profiled of 0.07-0.qiao.
Main Technical Parameters
Chemical composition
Name |
Alloy No. |
Chemical Composition(%) |
|||||
Fe |
P |
Ni |
Si |
Mg |
Cu |
||
Copper-Iron-Phosphorus Alloy |
QFe0.1/C192/KFC |
0.05-0.15 |
0.015-0.04 |
— |
— |
— |
Rem |
QFe2.5/C194 |
2.1-2.6 |
0.015-0.15 |
— |
— |
— |
Rem |
|
Copper-Nickel-Silicon Alloy |
C7025 |
—– |
—– |
2.2-4.2 |
0.25-1.2 |
0.05-0.3 |
Rem |
Technical Parameters
Alloy No. |
Temper |
Mechanical properties |
||||
Tensile Strength |
Elongation |
Hardness |
Elctricity Conductivity |
Thermal Conductivity W/(m.K) |
||
C192/KFC/C19210 |
O |
260-340 |
≥30 |
<100 |
85 |
365 |
1/2H |
290-440 |
≥15 |
100-140 |
|||
H |
340-540 |
≥4 |
110-170 |
|||
C194/C19410 |
1/2H |
360-430 |
≥5 |
110-140 |
60 |
260 |
H |
420-490 |
≥2 |
120-150 |
|||
EH |
460-590 |
—- |
140-170 |
|||
SH |
≥550 |
—- |
≥160 |
|||
C7025 |
TM02 |
640-750 |
≥10 |
180-240 |
45 |
180 |
TM03 |
680-780 |
≥5 |
200-250 |
|||
TM04 |
770-840 |
≥1 |
230-275 |
Note: Above figures based on the material thickness 0.1~3.0mm.
Typical Applications
● Lead frame for Integrated Circuits, Electrical connectors, Transistors, LED stents.
Product detail pictures:
Related Product Guide:
Being supported by an advanced and professional IT team, we could offer technical support on pre-sales & after-sales service for Popular Design for Thermo Exchange Copper Foil - Copper Strip for Lead Frame – CIVEN , The product will supply to all over the world, such as: Cape Town, Tunisia, Armenia, We solution have passed through the national skilled certification and been well received in our key industry. Our specialist engineering team will often be ready to serve you for consultation and feedback. We've been able to also provide you with no cost samples to meet your needs. Best efforts are going to be produced to supply you the very best service and solutions. For anyone who is considering our business and solutions, please speak to us by sending us emails or get in touch with us right away. As a way to know our items and enterprise. lot more, you'll be able to come to our factory to find out it. We'll constantly welcome guests from around the globe to our firm. o build enterprise. elations with us. You should really feel absolutely free to make contact with us for small business and we believe we'll share the top trading practical experience with all our merchants.
By Honey from United Arab Emirates - 2018.06.05 13:10
It is not easy to find such a professional and responsible provider in today's time. Hope that we can maintain long-term cooperation.
By Heather from Slovak Republic - 2017.06.22 12:49