Cross-sectional observation of large samples (expansion valve)
Introducing a case study on the cross-section preparation of a large sample (65mm × 28mm) and the observation of its internal structure!
We present an observation case of a large sample (expansion valve) measuring 65mm × 28mm. This sample uses magnetic materials, and due to distortion in the images during SEM observation, we primarily conducted observations using an optical microscope. From the appearance and X-ray radiographic observation, it was found that there are some areas that are not visible in the X-ray. [Overview] ■ Appearance and X-ray radiographic observation ■ Cross-sectional observation using an optical microscope *For more details, please refer to the PDF document or feel free to contact us.
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Observation of metallic tissue through chemical treatment.
We will introduce the observation of metallic structures through chemical treatment. By performing chemical treatment on metallic samples, it is possible to clearly observe the metallic structure. Observing the structure can reveal the condition of the sample and the history of applied heat and stress, providing clues about the quality of the product and any defects based on the structure's shape. In the catalog, you can find details on the observation of metallic structures, such as the macrostructure of aluminum plates and the soldered parts of copper terminals. Additionally, we offer other services such as cross-sectional observation and various analysis services. Please feel free to contact us if you have any requests.
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Cross-sectional observation of substrate-mounted components (1) to (6)
We would like to introduce an example of cross-sectional observation of mounted components conducted by our company. Using commercially available computer circuit boards, we observed the solder joints of mounted components and the internal structure of the components with a metal microscope. The observation modes of the metal microscope include bright field observation, dark field observation, and polarized light observation, among others. Additionally, there are observations using transmitted light, and the observation mode is selected according to the sample. By conducting cross-sectional observations before and after reliability testing, we can evaluate the reliability of the product. When observing, it is important to select an appropriate "observation mode" to clearly capture the condition of the solder joint interface and defects such as cracks.
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Cross-sectional observation of substrate-mounted components.
We will introduce examples of cross-sectional observations of various components mounted on a board called an organic substrate. Inside various electronic devices around us, there are substrates equipped with electronic components. When observing the mounted substrate, you can see that numerous components are tightly soldered together. It is necessary to verify that these components are properly joined, as they will not function correctly otherwise. Please contact us if you are considering observations before and after reliability testing or cross-sectional observations.
