About MAEDA MASAKATSU
About 日本大 生産工
About ultrasonic welding
About welded joint
About wafer
About substrate(plate)
About aluminum base alloy
About silicon containing alloy
About metal wire
About aluminum
About high purity metal
About interface(surface)
About weld zone
About electrode
About oxide film
About oxide
About weld defect
About output
About load(weight)
About ultrasonic vibration
About metal structure(microstructure)
About Welding techniques
About 教室
About 超音波接合
About 基礎
About 超音波
About 接合継手
About 組織
About 欠陥