Patent application number | Description | Published |
20110233520 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - There is provided a semiconductor device including a base substrate; a semiconductor layer formed on the base substrate and having a mesa protrusion including a receiving groove; a source electrode and a drain electrode disposed to be spaced apart from each other on the semiconductor layer, the source electrode having a source leg and the drain electrode having a drain leg; and a gate electrode insulated from the source electrode and the drain electrode and having a recess part received into the receiving groove. The mesa protrusion has a superlattice structure including at least one trench at an interface between the mesa protrusion and the source electrode and between the mesa protrusion and the drain electrode, respectively, and the source leg and the drain leg are received in the trench. | 09-29-2011 |
20110233612 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - There is provided a semiconductor device having a High Electron Mobility Transistor (HEMT) structure allowing for enhanced performance and a method of manufacturing the same. The semiconductor device includes a base substrate; a semiconductor layer provided on the base substrate; a source electrode, a gate electrode and a drain electrode provided on the semiconductor layer to be spaced apart from one another; and an ohmic-contact layer partially provided at an interface between the drain electrode and the semiconductor layer. | 09-29-2011 |
20110233613 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - There are provided a semiconductor device and a method for manufacturing the same. The semiconductor device according to the present invention includes a base substrate; a semiconductor layer that includes a receiving groove and a protrusion part formed on the base substrate, a first carrier injection layer and at least two insulating layers formed to traverse the first carrier injection layer formed in the semiconductor layer, and a second carrier injection layer spaced apart from the first carrier injection layer formed on the protrusion part; a source electrode and a drain electrode that are disposed to be spaced apart from each other on the semiconductor layer; and a gate electrode that is insulated from the source electrode and the drain electrode and has a recess part recessed into the receiving groove, wherein the lowest end portion of the receiving groove contacts the uppermost layer of the first carrier injection layer and the insulating pattern disposed at the innermost side of the semiconductor layer among the insulating patterns traverses the entire layer forming the first carrier injection layer and is disposed at the outer side of both side end portions in the thickness direction of the receiving groove. | 09-29-2011 |
20110233623 | SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME - There is provided a semiconductor device and a method of manufacturing the same. The semiconductor device includes a base substrate; a semiconductor layer having a receiving groove, a protrusion part, a first carrier injection layer, at least two insulating patterns, and a second carrier injection layer provided on the base substrate, the insulating patterns being disposed to traverse the first carrier injection layer and the second carrier injection layer being spaced apart from the first carrier injection layer and disposed on a lower portion of the protrusion part; a source electrode and a drain electrode disposed to be spaced apart from each other on the semiconductor layer; and a gate electrode insulated from the source electrode and the drain electrode and having a recess part recessed into the receiving groove, wherein a lowest portion of the receiving groove contacts an uppermost layer of the first carrier injection layer or is disposed above the uppermost layer thereof, and an insulating pattern, disposed at an innermost portion of the semiconductor layer among the insulating patterns, traverses the first carrier injection layer and is disposed at the outside of both sides of the receiving groove in a thickness direction thereof. | 09-29-2011 |
20120007049 | NITRIDE-BASED SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a nitride-based semiconductor device. The nitride-based semiconductor device includes: a base substrate having a diode structure; an epi-growth film disposed on the base substrate; and an electrode part disposed on the epi-growth film, wherein the diode structure includes: first-type semiconductor layers; and a second-type semiconductor layer which is disposed within the first-type semiconductor layers and has both sides covered by the first-type semiconductor layers. | 01-12-2012 |
20120007053 | NITRIDE-BASED SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - Disclosed herein is a nitride-based semiconductor device. The nitride-based semiconductor device includes a base substrate having a PN junction structure, an epi-growth layer disposed on the base substrate, and an electrode unit disposed on the epi-growth layer. | 01-12-2012 |
20120088341 | Methods Of Manufacturing High Electron Mobility Transistors - The methods may include forming a first material layer on a substrate, increasing electric resistance of the first material layer, and forming a source pattern and a drain pattern, which are spaced apart from each other, on the first material layer, a band gap of the source and drain patterns greater than a band gap of a first material layer. | 04-12-2012 |
20130034939 | METHOD OF MANUFACTURING POWER DEVICE - A method of manufacturing a power device includes forming a first drift region on a substrate. A trench is formed by patterning the first drift region. A second drift region is formed by growing n-gallium nitride (GaN) in the trench, and alternately disposing the first drift region and the second drift region. A source electrode contact layer is formed on the second drift region. A source electrode and a gate electrode are formed on the source electrode contact layer. A drain electrode is formed on one side of the substrate which is an opposite side of the first drift region. | 02-07-2013 |
20140103352 | NITRIDE SEMICONDUCTOR AND FABRICATING METHOD THEREOF - The present disclosure relates to nitride semiconductor and a fabricating method thereof, and a nitride semiconductor according to an exemplary embodiment of the present disclosure includes a nitride based first and second electrode placed with a distance on a substrate, a nitride based channel layer which connects the first and second electrode, an insulating layer which covers the channel layer, and a third electrode which is formed to cover the insulating layer on the insulating layer. | 04-17-2014 |