2021 High quality Copper Foil Paper - Copper Strip for Lead Frame – CIVEN
2021 High quality Copper Foil Paper - 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:
Dedicated to strict high-quality management and considerate shopper company, our experienced team associates are normally available to discuss your requirements and ensure full shopper gratification for 2021 High quality Copper Foil Paper - Copper Strip for Lead Frame – CIVEN , The product will supply to all over the world, such as: UAE, Ecuador, Paris, As a way to make use of the resource on the expanding information and facts in international trade, we welcome prospects from everywhere on the web and offline. In spite in the top quality products we offer, effective and satisfying consultation service is supplied by our specialist after-sale service group. Solution lists and detailed parameters and any other info weil be sent to you timely for the inquiries. So please get in touch with us by sending us emails or contact us if you have any concerns about our firm. ou can also get our address info from our web site and come to our enterprise. or a field survey of our solutions. We're confident that we are going to share mutual results and build solid co-operation relations with our companions in this market. We're looking forward to your inquiries.
By Paula from Cairo - 2018.11.04 10:32
The product classification is very detailed that can be very accurate to meet our demand, a professional wholesaler.
By Stephen from San Diego - 2018.09.12 17:18