Devices and methods based on disclosed technology include, among others, an electronic device capable of improving a signal transfer characteristic and a method for fabricating the same. Specifically, an electronic device in one implementation includes a plurality of buried gates formed in a substrate, open parts formed in the substrate on both sides of the buried gate, isolation layers each formed between a sidewall of the open part and a sidewall of the buried gate, source/drain regions formed in the substrate under the respective open parts, and contact plugs buried in the respective open parts.