Technical Information: Publication of one case on band structure evaluation using X-ray absorption and emission spectroscopy.

Detailed information about the valence band, conduction band, and gap states of the material can be obtained.

Understanding the band structure, including valence bands, conduction bands, and gap states, is an extremely important evaluation criterion for controlling various properties of materials. However, there are limited analytical methods available for direct and detailed assessment of these aspects. Simultaneous measurements of X-ray absorption spectroscopy (XAS) and X-ray emission spectroscopy (XES) using synchrotron radiation allow for a comprehensive understanding of the band structure, as well as detailed information regarding the attribution of the elements and orbitals that compose it. This document presents the XAS and XES spectra of GaN substrates as an example of measurement.

• Contract Analysis

Fukuda Co., Ltd., which develops, manufactures, and sells leak testing equipment to inspect airtightness and sealing performance, provides a technical document that clearly explains the methods and theories of airtight testing, titled "Technical Manual." We are offering it as a PDF file. Please take this opportunity to download and view it!

Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing properties. We will propose the appropriate testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

In civil engineering sites, due to the effects of rain and mud, temporary roads, access routes, and heavy machinery work yards can become slippery. To ensure the safety of vehicles and workers, it is important to choose appropriate mats for the site conditions and to improve the footing environment. Hyper CLT mats are civil engineering CLT materials that utilize laminated timber. They possess surface characteristics unique to wood and can provide a non-slip footing environment that differs from metal steel plates. They can be used in a wide range of civil engineering sites, including temporary roads, vehicle entrances and exits, mud prevention, ground protection, heavy machinery scaffolding, and worker pathways. The 5×10 panel weighs approximately 230 kg, and the 5×20 panel weighs about 460 kg, making them lightweight and easy to handle even with small machinery, which contributes to labor-saving in installation and removal. It should be noted that slipperiness can vary depending on weather, slope, mud or oil adhesion, and installation conditions, so on-site verification and appropriate maintenance management are necessary. This wooden mat is registered as a technology with the Ministry of Land, Infrastructure, Transport and Tourism under NETIS as "TH-250021-A" and can be utilized for safety measures and creative ideas.

Fukuda Corporation has been pursuing leak detection for 60 years and is dedicated to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing performance. We will propose suitable testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

This is a collection of links to Fukuda's technical columns. It covers various topics related to leak tests and more... Please check the related links for more information.