Total support service for cross-sectional grinding, processing, observation, and analysis.

Regarding the chip mounted on the main circuit board of the VR goggles manufactured by Company A, upon visual observation, it was inferred that it has a chiplet structure with multiple chips integrated. To examine the structure in more detail, we created a cross-section using X-ray CT observation and mechanical polishing, and we will introduce the structural confirmation results. *For more details, please download the PDF or feel free to contact us.*

We will introduce a case where cross-sections were created and observed by method regarding the adhesive parts of the tires of pull-back cars. When conducting SEM observations of the created cross-sections, fillers present inside the rubber were confirmed. It was found that the dispersion state of the fillers and the condition of the adhesive interface were not clear with fracture by liquid nitrogen or mechanical polishing. In contrast, the cross-sections created by cryo ion milling allow for clear observation of the dispersion state of the fillers contained within the rubber and the condition of the adhesive interface with the plastic substrate.

We conducted measurements to reconfirm the temperature of heat generation during curing, following the change to a non-toxic epoxy resin. When using a large amount of resin, we apply heat generation prevention treatment for resin embedding. Without this treatment, the temperature can rise up to 138°C during curing. However, by applying the heat generation prevention treatment even with a large amount of resin, we were able to keep the heat generation during curing within 30°C.

I would like to introduce "Cross-sectional observation of tracking camera using mechanical polishing." Regarding the structure of the tracking camera components, when viewed from above, the lens can be identified. Although it cannot be clearly seen in the X-ray image, the lens is incorporated into the convex part. Additionally, the cross-sectional structure is similar to that of an RGB sensor, featuring a back-illuminated CMOS structure. However, since color information is not necessary for the tracking camera, there is no color filter layer. A jagged uneven shape was observed on the surface of the photodiode.