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Factory directly supply Thin Brass Strips - Copper Strip for Lead Frame – CIVEN

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  • Factory directly supply Thin Brass Strips - Copper Strip for Lead Frame – CIVEN

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Factory directly supply Thin Brass Strips - 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
MPa

Elongation
δ≥(%)

Hardness
HV

Elctricity Conductivity
％IACS

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.

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Factory directly supply Thin Brass Strips - Copper Strip for Lead Frame – CIVEN detail pictures

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Reliable good quality and very good credit standing are our principles, which will help us at a top-ranking position. Adhering to your tenet of "quality 1st, purchaser supreme" for Factory directly supply Thin Brass Strips - Copper Strip for Lead Frame – CIVEN , The product will supply to all over the world, such as: Macedonia, Cairo, Czech, They are sturdy modeling and promoting effectively all over the world. Never ever disappearing major functions within a quick time, it's a have to for you of fantastic good quality. Guided by the principle of "Prudence, Efficiency, Union and Innovation. the corporation. ake an excellent efforts to expand its international trade, raise its organization. rofit and raise its export scale. We are confident that we are going to have a bright prospect and to be distributed all over the world in the years to come.
    • The company's products very well, we have purchased and cooperated many times, fair price and assured quality, in short, this is a trustworthy company!
    5 Stars By Evelyn from America - 2018.06.21 17:11
    Staff is skilled, well-equipped, process is specification, products meet the requirements and delivery is guaranteed, a best partner!
    5 Stars By Lisa from Slovakia - 2017.06.22 12:49
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