What are the uses of x-ray testing?

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What are the uses of x-ray testing? [Copy link]

What are the uses of x-ray testing?

1. What is X-ray?

X-ray uses a cathode ray tube to generate high-energy electrons that collide with metal targets. During the collision, the electrons suddenly slow down, and the lost kinetic energy is released in the form of X-rays. For locations where the sample cannot be observed from the outside, the change in light intensity after X-rays penetrate materials of different densities can produce a contrast effect that can form an image, which can show the internal structure of the object to be tested, and thus observe problematic areas inside the object to be tested without destroying it.

2. What can X-ray do?

High-precision X-ray is an important method for non-destructive testing and a common method for failure analysis. Its main application areas are:

1. Observe semiconductors, resistors, capacitors and other electronic components in different packages such as DIP, SOP, QFP, QFN, BGA, Flipchip, and small PCB printed circuit boards

2. Observe the chip size, quantity, die stacking, and wire binding inside the device

3. Observe chip cracks, uneven dispensing, broken wires, overlapping wires, internal bubbles and other packaging defects, as well as solder ball cold welding, false welding and other welding defects

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Detection of cracks and foreign matter inside metal materials and parts, plastic materials and parts, electronic components, electronic assemblies, LED components, etc.; analysis of internal displacement of BGA and circuit boards; identification of BGA welding defects such as empty solder joints and cold solder joints; analysis of internal conditions of microelectronic systems and sealed components, cables, fixtures, and plastic parts.

However, this thing still has certain harm to the human body.

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Yes, there is radiation. It cannot be operated for a long time.