Classification of IC surface scratch test levels

Date：2023-05-08 16:41:07Views：334

As an indispensable basic component in modern electronic products, the quality stability of IC chips has a very important impact on the service life and stability of electronic products. In IC production and manufacturing, IC surface scraping detects the degree of wear on the chip surface to determine whether the chip meets quality standards or whether further treatment or replacement is necessary.

IC surface scratch test level refers to the division of test results during scratch testing of IC surfaces, in order to facilitate the judgment and evaluation of the quality of IC products. The classification of IC surface scratch test levels is based on the usage environment of the IC. This testing method usually uses sandpaper or other scraping materials to gently scratch the surface of the chip, and then observe the color changes on the chip surface to determine the degree of wear on the chip surface.

Generally speaking, the usage environment of ICs mainly includes the following aspects:

Temperature: IC chips are prone to problems when used in high and low temperature environments. Therefore, for IC chips with different temperature ranges, different levels should be classified based on their temperature environment.

Humidity: The humidity environment can also have an impact on the stability of IC use, so it is also necessary to consider the humidity environment in the grading of IC surface scratch testing.

Air pressure: The high or low air pressure will affect the operation of the circuit inside the IC, so it is also necessary to consider the air pressure environment in the grading of IC surface scratch testing.

Vibration: IC chips are prone to problems in vibration environments, so it is also necessary to consider the vibration environment in the grading of IC surface scratch testing.

According to the regulations of the International Semiconductor Equipment and Materials Association (ISPM), the classification of IC surface scratch test levels is as follows:

Level 1: The chip surface has no wear and the color remains unchanged.

Level 2: The wear on the chip surface is limited to the surface layer, the color darkens, but no new surface is exposed.

Level 3: The wear on the chip surface has exposed a new surface and the color has become lighter.

Level 4: The wear on the chip surface is already severe, the color has darkened, and there may be peeling or cracking.

Level 5: The chip has expired or needs to be replaced.

In summary, the classification of IC surface scratch test levels is a very important part of electronic product manufacturing. By understanding different levels, manufacturers can better determine the quality standards of chips and take corresponding measures for quality control and replacement. In addition, the classification of IC surface scratch test levels can also provide important reference basis for quality control of electronic products. I hope this article can be helpful to everyone, and we will bring more exciting content in the future. The company's testing services cover various testing projects, including electronic component testing and verification, IC authenticity identification, product design and material selection, failure analysis, functional testing, factory incoming material inspection, and tape weaving. Welcome to call Chuangxin Testing, we will be happy to serve you.