Introduction: Seiko Epson Corporation, founded in May 1942, is headquartered in Suwa City, Nagano Prefecture, Japan. Seiko Epson's semiconductor products mainly include: TCXO: high-precision oscillator, VCXO: voltage controlled oscillator, OCXO: constant temperature bath for crystal oscillator, crystal oscillator, real-time clock module, crystal unit, and sensor. The main application areas of its products include wired/wireless networks, measuring instruments, factory automation, security, broadcasting, audio, and automotive; Seiko Epson official website: www5. epsondevice. com.