X-ray film thickness gauge

　　1、 Working principle

The X-ray film thickness gauge uses the penetration characteristics of X-rays and their interaction with materials to measure the thickness of materials. When X-rays are irradiated onto the surface of the sample to be tested, a portion of the radiation will pass through the sample, while another portion will be absorbed or scattered by the sample. The film thickness gauge calculates the thickness of the sample by detecting the X-ray intensity transmitted through the sample. The specific process is as follows:

1. X-ray source emits X-rays: The X-ray source produces X-rays of a certain wavelength, which are directed at a certain angle onto the material under test.

2. Sample interaction: X-rays interact with atoms in the sample, causing absorption and scattering in the sample, and forming transmitted X-rays.

3. Detector receiving signal: The X-ray signal transmitted through the sample is received by the detector and converted into an electrical signal.

4. Data processing: The data processing unit analyzes the received signal and calculates the film thickness using information such as the absorption coefficient of known materials.

　　2、 Main features

　　1.high precisionThe X-ray film thickness gauge can achieve sub micron level film thickness measurement, and its high resolution has made it widely used in precision manufacturing.

　　2.non-destructiveThis instrument has the characteristic of non-contact measurement, which can measure film thickness without damaging the sample, and is particularly suitable for the detection of expensive or fragile materials.

　　3.AdaptableCan be used for measuring various materials, including metals, ceramics, polymers, etc. According to different material combinations, X-rays of different wavelengths can be selected.

　　4.quick measurementIt has fast measurement speed and can obtain accurate measurement results in a short period of time, making it suitable for online detection on industrial production lines.

　　5.High degree of automationMany are equipped with automated control systems, which can achieve fully automatic operation and greatly improve work efficiency.

　　3、 Application Fields

1. Semiconductor industry: Film thickness control is crucial in the semiconductor manufacturing process. The X-ray film thickness gauge is widely used for measuring silicon wafers, thin film materials, and other critical layers to ensure consistency and reliability of device performance.

2. Metal coating: In aerospace, automotive manufacturing, and electronic components, the uniformity and thickness of metal coatings directly affect the performance and lifespan of products. The film thickness gauge can accurately measure the coating thickness to ensure product quality.

3. Display industry: In the production of LCD and OLED displays, the thickness requirements for thin films are very strict. The X-ray film thickness tester can effectively control the optical and electrical performance of the display screen.

4. Materials science research: In the development process of new materials, film thickness is one of the key parameters. By using a film thickness gauge, researchers can obtain accurate film thickness data, thereby promoting the development and application of new materials.

5. Other applications: In addition, it can also be used for film thickness measurement in fields such as optical films, coatings, packaging materials, and medical devices.