IC chip inspection project service: visual inspection of appearance defects

Date：2021-09-03 13:30:44 Views：2324

With the advent of the electronic information age, there are a wide range of electronic products on the market, as well as various electronic components such as IC chips and diodes. If you don't pay attention to the distinction, it is sometimes difficult to see the difference between various materials and chip quality. We should fully understand the working principle of the chip before starting the chip test process. Be familiar with its internal circuit, main parameters, functions of each outgoing line and its normal voltage. The chip is very sensitive, so pay attention not to cause a short circuit between the pins during the test. The short circuit at any moment can be captured, causing the chip to burn out. The following mainly introduces the visual inspection of appearance defects. Let's have a look!

First of all, let's understand that appearance defects refer to the asymmetric places on some physical surfaces or functions of products, such as scratches, black spots, holes on the surface of metal materials, color difference and embossing on the surface of paper, impurities, damage and stains on the surface of laminated glass and other non-metallic materials. Appearance defects not only endanger the beauty and comfort of products, but also usually have a negative impact on the performance indicators of goods. Therefore, manufacturers attach great importance to the detection of commodity appearance defects. This inspection method is easy to deal with in time. According to the inspection results, some problems in the production process can be analyzed to avoid or reduce defects, avoid potential trade disputes and maintain the reputation of the enterprise.

The process of chip testing is to put the encapsulated chip in various environments to test its electrical characteristics, such as power consumption, running speed, withstand voltage, etc. The tested chips are divided into different levels according to their electrical characteristics. The special test is to take out some chips from similar parameters, specifications and varieties according to the technical parameters of customers' special needs, and do targeted special tests to see whether they can meet customers' special needs, so as to decide whether to design special chips for customers. The products that pass the general test can leave the factory after they are labeled with the identification of specification, model and ex factory date and packaged. The chips that fail to pass the test are determined as degraded products or scrap according to the parameters they reach.

What is appearance defect detection? In machine vision technology, surface appearance defect detection is an automatic identification technology without touch and damage. It is a reasonable way to maintain automation technology, intelligent system and high-precision operation. It has the advantages of reliability, wide response range of spectrometer, long-term work in complex environment and high productivity. The appearance defect detection system can obtain the surface image of the product according to the lens light source, carry out a series of operations such as accurate positioning, resolution and defect classification for the product image, and deal with and solve the existing problems in time.

With the rapid development of machine vision, manufacturing enterprises began to introduce artificial intelligence detection technology to detect product appearance defects, which not only reduced the labor cost, but also greatly improved the detection accuracy and efficiency, and brought better reputation and greater benefits to enterprises. Chuangxin testing always adheres to the purpose of "professional, authoritative, efficient and innovative". It has invested heavily in purchasing international advanced testing equipment. The testing is in strict accordance with international testing standards and methods. It has obtained CNAs certification and international mutual recognition qualification. Its customer base covers many countries and regions at home and abroad. It is a professional IC testing institution with excellent quality and high popularity in China.