Abstract: A semiconductor memory device includes a substrate including an element separation film and an active region defined by the element separation film, a bit line structure on the substrate, a trench in the element separation film and the active region, the trench on at least one side of the bit line structure and including a first portion in the element separation film and a second portion in the active region, a bottom face of the first portion placed above a bottom face of the second portion, a single crystal storage contact filling the trench, and an information storage element electrically connected to the single crystal storage contact.

Abstract: The present invention relates to a smart infant toilet system and a method thereof, and the system includes a first sensor mounted to an infant product to sense external temperature and humidity, a second sensor mounted to the infant product to sense gas, third sensor mounted to the infant product to sense whether an infant rides on the infant product, a control module configured to set critical temperature and humidity, and an alarming unit configured to provide an alarm to a guardian when it is determined that the comparative temperature and humidity are out of the preset range of the critical temperature and humidity.

Abstract: The present invention relates to a smart infant toilet system and a method thereof, and the system includes a first sensor mounted to an infant product to sense external temperature and humidity, a second sensor mounted to the infant product to sense gas, third sensor mounted to the infant product to sense whether an infant rides on the infant product, a control module configured to set critical temperature and humidity, and an alarming unit configured to provide an alarm to a guardian when it is determined that the comparative temperature and humidity are out of the preset range of the critical temperature and humidity.