Case study of switch contact failure analysis

Appearance inspection, electrical verification, and internal observation using X-rays conducted! Introduction of analysis cases.

Since a malfunction was suspected at the switch part of the appliance that would not power on, we will introduce analysis cases along with the work flow. First, we check for any shape changes such as swelling, cracking, or discoloration through visual observation. In the electrical check, we confirm whether the malfunction can be reproduced and whether it is an open or short circuit. Internal observation using X-rays revealed that the contact terminals inside the switch had melted, scattered, and disappeared, resulting in an open failure. Ultimately, we will submit a report that includes an analysis of the cause. We also welcome inquiries regarding analysis consultations after non-destructive testing, so please feel free to reach out. 【Basics of Non-Destructive Observation】 ■1: Visual Confirmation ■2: Electrical Confirmation ■3: Internal Observation with X-rays *For more details, please refer to the PDF document or feel free to contact us.

• Non-destructive testing

We undertake contract processing and manufacturing of cross-sections of various parts and materials.

At Aites, we undertake the processing of cross-sections of various components and materials, including electronic components, mounted circuit boards, semiconductors, compound semiconductors, power devices, films, resin molded products, solar panels, and LCD glass. We also conduct observations and analyses of the produced cross-sections, providing services for defect analysis and quality evaluation. 【List of Services】 ■Mechanical polishing ■CP processing ■Microtome ■FIB processing ■Analysis of semiconductor diffusion layers, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment

X-ray CT observation allows for the assessment of the winding condition of coil wiring! We will introduce examples of observing IC-type coils, which differ from X-ray transmission observation.

Here are some examples of observations of IC-type coils. Through X-ray observation, we can clearly capture the internal structure by using methods suited to the purpose. In transmission observation, we can quickly detect metal foreign objects, and in CT observation, we can obtain three-dimensional images of any cross-section, making it suitable for observations where positional information and shape are important. Unlike transmission observation, we can also assess the winding condition of the coil wiring. *For more details, please refer to the PDF materials or feel free to contact us.

• Analysis and prediction system

X-ray fluoroscopic observation, oblique CT observation, orthogonal CT observation, etc.! Introduction of BGA solder crack analysis cases.

We will introduce a case study of BGA solder crack analysis using X-ray imaging and CT scanning. When observing the BGA connection area of a circuit board that had become electrically open using X-ray imaging, cracks were confirmed to have occurred at the BGA connection. Additionally, we examined the cracks in the solder connection observed through X-ray imaging using oblique CT. Oblique CT provides clear planar information, but spherical shapes like solder balls and voids appear elongated in the vertical direction due to specific factors of oblique CT. While it is difficult to obtain cross-sectional information about the cracks occurring at the solder joint interface, there is the advantage of being able to observe the circuit board non-destructively. [Analysis Cases] ■ X-ray imaging observation ■ Oblique CT observation ■ Orthogonal CT observation ■ Cross-sectional observation *For more details, please refer to the PDF document or feel free to contact us.

• others

Observation of the misalignment of the internal metal plate! This is a case study of a toggle switch observed through X-ray fluoroscopy and orthogonal CT observation.

A defective toggle switch component was found where the operating lever does not switch. As a result of X-ray fluoroscopic observation, it was observed that the internal metal plate was misaligned, revealing the cause of the defect. In this case, the metal plate is supposed to move like a seesaw around the central terminal to switch the circuit, but in the defective product, the metal plate is misaligned, preventing the lever from switching to the opposite side and thus making circuit switching impossible. CT observation provides not only 3D images but also arbitrary slice cross-sectional images in the X, Y, and Z directions. [Observation Case] ■ Subject: Toggle Switch ■ Observation Method: X-ray fluoroscopic observation, orthogonal CT observation ■ Cause of Defect: Misalignment of the internal metal plate *For more details, please refer to the PDF document or feel free to contact us.

• others

**Improvement of Spoofing Prevention Accuracy and Performance** With FaceMe SDK 7.8, we enhance measures against increasingly sophisticated spoofing attacks by improving authentication accuracy and processing speed, thereby increasing the safety and reliability of facial recognition. - IR + RGB Spoofing Prevention: Detection accuracy improved by up to 35%, processing speed improved by up to 15% - 3D Spoofing Prevention: Detection accuracy improved by up to 56.8% for Intel RealSense D415 **Reducing Development Burden with the New Integrated API "FaceMe Authenticator"** We have integrated multiple processes that previously required individual implementation into a single API. Integrated Functions: - Face Detection + Feature Point Extraction + Spoofing Prevention + Authentication Processing Features: - Compatible with Windows / Ubuntu x64 / Android - 2D cameras, 3D depth cameras, and IR + RGB cameras can be used through a single interface - Significantly reduces development burden while maintaining high-accuracy authentication

Crittec Industries Co., Ltd. published a newspaper advertisement (black and white, full-page 15 columns) for the bridge expansion device "Hybrid Joint" in the February 26, 2026 issue of the Sankei Shimbun Tohoku 6 Prefectures edition. In Japan, the number of bridges over 50 years old is rapidly increasing, making the longevity of bridges a critical issue. The expansion devices, which are considered a cause of bridge damage, require high water-tightness and long-term durability. Our expansion device "Hybrid Joint" offers multiple types tailored to different bridge types and conditions. Among them, the "Hybrid Joint 3LII type" has demonstrated a durability of 100 years in fatigue loading tests conducted by a third-party organization. It has successfully passed 12 million cycles of repeated loading at a maximum load of 260 kN, confirming performance equivalent to a 100-year design service life for bridges. We have numerous delivery records in the six Tohoku prefectures and can accommodate a wide range of bridge types, including steel and PC bridges. The special website linked to the advertisement allows for the review of detailed materials and inquiries or requests for documents. Please make use of it for comparing and considering bridge renewal and repair plans. Crittec Industries will continue to contribute to the longevity of bridges nationwide, starting with the Tohoku region.

Born from the voices on the ground, high brightness × wide coverage × high cost performance linear lighting. To respond to the production site’s demands for "brighter," "wider," and "easier to use," we have launched the new high brightness linear lighting LLWK-N series, which balances high brightness and high cost performance. While achieving approximately three times the illuminance compared to the conventional LLWG series, we maintain an easy-to-implement price range. With a natural heat dissipation structure suitable for clean rooms and a compatible design that makes it easy to replace existing lines, we are thoroughly pursuing the "ease of use" required on-site. For detailed product specifications and inquiries about implementation, please feel free to contact us.

Our company not only sells building materials but also carries out flooring and wood deck construction within Okinawa Prefecture. For more details, please contact us. - Raised floor - Steel floor - Direct installation - Conventional floor - Recycled wood / wood deck

Adopted by major semiconductor manufacturers. Over 10,000 copies produced annually. This high-quality cleanroom notebook (dust-free paper notebook) has been loved for many years in "Silicon Island Kyushu," where some of the world's leading semiconductor manufacturing companies are located. It uses Sakurai Co., Ltd.'s "Staclean RV (recyclable dust-free paper)" and is designed for professional use, minimizing dust generation to the utmost. It supports "writing" in semiconductor factories, precision equipment manufacturing sites, and medical environments. [Main adopting companies: SCK, JASM, RSMC, and many others] ■ Three reasons why Yoneura Printing's "Cleanroom Notebook" is chosen: - Proven track record: Adopted by multiple major semiconductor companies in Kyushu, with an annual production and sales record of over 10,000 copies. - Use of the highest quality dust-free paper: The main paper uses "Staclean RV Violet 72g," and the cover uses "Clean Paper RC 175g," achieving low dust generation. - Size options tailored to the workplace: A lineup ranging from standard A4 and B5 sizes to convenient mini sizes that fit into cleanroom pockets. ■ Product lineup: - Clean Notebook A4 @400～ - Clean Notebook B5 @380～ - Clean Pocket (mini size) @225～