RFsemi Inc. was founded in 1999 with the semiconductor design, process and packaging technologies. We have international competitiveness in small size semiconductor element and devices such as JFET & IC for ECM, EMI filter, ESD Protection diode.

Now we are producing JFETs for ECM which is used in mobile phone, mps player, PDA and digital camera.
As another main product, we have launched ECM ICs for high sensitive capacitor microphone which is expected to be a blue chip of world market.
We are leading the international market with competitive technology of device design, manufacturing, and packaging for small size semiconductor.

We anticipate that Rfsemi becomes the world best company specialized in semiconductor, holding the 60% of the global market in "JFET & ICs for ECM" and annual sales of USD 100million("100 billion Won")in small size semiconductor by 2010.