What is the scratch test used to measure? How to determine?

Date：2023-05-05 15:46:15Views：272

With the popularization of electronic products and the rise of online shopping, the problem of counterfeit and inferior products is becoming increasingly prominent. In order to protect the legitimate rights and interests of consumers and maintain the normal order of the industry, IC (integrated circuit) authenticity detection has become one of the indispensable links in the modern electronic industry. Among them, scratch testing is a commonly used IC authenticity detection method, which is mainly used to measure the layer thickness or surface morphology of specific elements or features on the surface of IC chips, in order to determine the authenticity of ICs.

Scratch testing is a method of detecting the authenticity of an IC by scraping the surface of the IC chip. The principle of this testing method is to distinguish authenticity by utilizing the layer thickness or surface morphology of certain important elements or features in IC chips. The specific judgment method for scratch testing may vary depending on different IC chips and specific elements or features.

For example, on the surface of a regular CMOS chip, scratch testing can determine the authenticity of the chip by observing the position and shape of elements such as electrodes and metal markers. During testing, use specialized tools or instruments to scratch the surface of the chip and observe the location and shape of the scratches to determine the authenticity of the chip. If the corresponding mark is to be removed, then the chip is determined to be counterfeit, otherwise it is considered genuine.

However, it should be noted that the scratch test can only detect the surface condition of the IC, and cannot detect whether there are problems inside the IC. Therefore, when using scratch testing, other testing methods such as voltage measurement and functional testing need to be combined to comprehensively evaluate the performance and reliability of ICs. Because different chip types and manufacturers use different markings, some markings may be very small or difficult to replicate, which may lead to scratch testing being unable to effectively determine the authenticity and quality of the chip.

In addition, there are also some defects in scratch testing, such as the possibility of causing some degree of damage to the chip, especially for some high-end chips, which may affect the performance and lifespan of the chip. Therefore, scratch testing usually needs to be combined with other different detection methods to make judgments, in order to more accurately determine the authenticity and quality of the chip. At the same time, chip manufacturers also need to take a series of measures to ensure the authenticity and quality of chips, such as using safety production processes, sealing technology, and digital identification.

Only by ensuring the authenticity and quality of chip products can we effectively ensure the healthy development of the industry. Scratch testing is a very effective method for detecting the authenticity of IC, which is of great significance for both manufacturers and consumers. Manufacturers can protect their brands and intellectual property rights in this way, while consumers can avoid purchasing counterfeit and inferior products and gain a better consumer experience. So that's all for today's content sharing. If you find it helpful, please follow Chuangxin Testing. We will provide you with more industry information!