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How to prevent device lead frame oxidation

Published:2018-04-10 11:20:39   Come From:jotrin.com Click Count:56

Jotrin Electronics Co., Ltd. launched a quality control program for related electronic components for the needs of customers.

What can we do?

Part Test By Jotrin Include

1.HD Visual Inspection

2.Final Function Testing

3.Open/Short Test

4.Programming Function Testing

5.X-RAY And ROHS Test

6.Chemistry Analysis

Our ability

We have a professional quality inspection team that can provide you with professional quality control services for electronic components and ensure that the goods received by customers can be used normally. Every inspection personnel of Jiechi pays great attention to details and can find problems. Do not miss any defects. Many customers have highly evaluated our testing projects and have shown high satisfaction.

Corporate knowledge classroom from Jotrin Electronic Limited

As we all know. It is very important to prevent the oxidation of electronic products. He can guarantee that the important performance of electronic products is not negatively affected. It involves the packaging of products and a series of other professional knowledge.

Now we will explain to you how to prevent device lead frame oxidation.

You will gain more knowledge of related electronic components.
Before explaining, you need to understand a bit of packaging knowledge.

Please see the picture:

Below as IC Package Structure

 IC Package Structure


From the figure we know that IC Package Structure includes

1)Tin layout

2)Lead Frame

3)Gold Wire

4)Wafer 

5)Mold Compound

How to prevent device lead frame oxidation

1.Oxidation root cause:

a). Lead Frame is made of copper , and tins of thin were electroplated  in the Lead Frame surface. 

b) . If the product is exposed to the air for a long time, the product’s pin will be oxidized by oxygen in the air. Because the product pin will absorb oxygen in the air to produce an oxygen film, when the oxide film is heated by the high temperature, the tin will not be reattached.

2. Oxidation Preventive action:

a). Avoid product is exposed to the air for a long time .

b). Packing the product with professional ESD & vacuum package 

c). Add moisture-proof agent and Wet identification card in the package.

3. Our company corrective action

first step :ESD & Vacuum Package                      

second step: Add moisture-proof agent and Wet identification card

third step:Finally Package and express 

ESD & Vacuum Package Add moisture-proof agent and Wet identification cardFinally Package and express