Roma (ROHM) Corporation, one of the world’s leading semiconductor manufacturers, is the first Japanese company to enter the U.S. Silicon Valley. According to the Nihon Keizai Shimbun, Rohm has now developed a small transistor that reduces power loss by 20% compared to the previous one.
Compared with conventional transistors, this small transistor uses the original TDACC circuit design technology, reducing power loss by 20%. The semiconductor can efficiently switch the current on and off even if the total length is only 1 mm, and is expected to be used in wearable devices such as wireless headphones and watch terminals, and the company will initially produce 10 million units per month.
The transistor is said to be close to the smallest size, 1 mm in length and 0.6 mm in width, and is mainly used for switching the power required for switching electronic parts and sensor types inside wearable devices and the like.
Compared with the same size as the general product, the new small transistor uses 20% less power loss. Transistors are difficult to reduce both “on-resistance” and “switching losses,” but Rohm has succeeded in doing so using large-scale integrated circuit (LSI) technology. The silicon substrate is not covered with resin but coated with an autonomous insulating film to achieve miniaturization.
Officials say that this transistor can be used for headphones in two to four per product, which also can significantly reduce the space occupied by electronic circuits.
