In accordance with the present techniques, there is provided a JFET device structures and methods for fabricating the same. Specifically, there is provided a transistor including a semiconductor substrate having a source and a drain. The transistor also includes a doped channel formed in the semiconductor substrate between the source and the drain, the channel configured to pass current between the source and the drain. Additionally, the transistor has a gate comprising a semiconductor material formed over the channel and dielectric spacers on each side of the gate. The source and the drain are spatially separated from the gate so that the gate is not over the drain and source.