X-ray testing | a super practical nondestructive testing method for IC chip defects

Date：2021-08-16 17:21:00Views：2164

IC chip, which can also be understood as integrated circuit in Chinese, is an integrated circuit composed of a large number of microelectronic components (transistors, resistors, capacitors, crystal diodes, etc.) placed on a substrate to make a chip. IC chips are common digital electronic products, such as those in TV, computer and mobile phone.

Integrated circuit is a kind of more precise electronic components. It encapsulates the electronic devices (transistors, diodes, resistors, capacitors, inductors and other components) that need to be used in a shell and becomes the functional micro structure required by the circuit. The more precise the structure is, the more difficult it is to be detected. X-ray inspection for IC chip is a nondestructive inspection project for perspective inspection of internal defects of IC chip. It is one of the best methods for defect detection of IC chip.In order to ensure the quality of IC chips, general enterprises will test IC chips, and X-ray testing equipment is mostly used in the market for quality identification.

About X-ray test items

X-ray can penetrate the material that ordinary visible light cannot penetrate, and its penetration is related to the X-ray wavelength and the density and thickness of the penetrating material. In short, the shorter the wavelength of X-ray, the higher the penetration rate; The lower the density and the thinner the thickness, the easier the X-ray penetration. As one of the five commonly used nondestructive testing methods, X-ray testing technology has been widely used in industry. Radiographic testing is divided into four categories according to the definition of STM: Photographic inspection, real-time imaging inspection and tomography inspection. In fact, there is no difference between X-ray and natural light in essence. They both belong to electromagnetic waves, but the energy of X-ray quantum is much greater than that of visible light. It can penetrate objects that can not be penetrated by visible light and produce complex physical and chemical effects on substances.

Application type of X-ray detection

Quality inspection: X-ray equipment can be used to detect casting and welding defects (both industrial and electronic industries).

Thickness measurement: X-ray equipment can be used for online, real-time and non-contact thickness measurement.

Security inspection: X-ray equipment can be used for security inspection in the field of public security.

Dynamic research: X-ray equipment can be used to study dynamic processes, such as trajectory, explosion, casting process, etc.

In short, Xray can achieve a unique detection effect that cannot be achieved by other detection methods. In addition, X-ray has no damage to the chip detection, so it is also called nondestructive testing. In addition to the detection of chips, the defect detection of lithium batteries, led beads, semiconductors and other products can be carried out perfectly through it.