Abstract:
A microelectronic device includes a hybrid component. The microelectronic device has a substrate including silicon semiconductor material. The hybrid component includes a silicon portion in the silicon, and a wide bandgap (WBG) structure on the silicon. The WBG structure includes a WBG semiconductor material having a bandgap energy greater than a bandgap energy of the silicon. The hybrid component has a first current terminal on the silicon, and a second current terminal on the WBG semiconductor structure. The microelectronic device may be formed by forming the silicon portion of the hybrid component in the silicon, and subsequently forming the WBG structure on the silicon.
Abstract:
An electronic device includes an ESD protection device with implanted regions that extend around a finger shape with a straight portion and elongated turn portions, and contacts that extend only in the straight portion, where the turn portions include elongated lightly doped implanted regions to mitigate turn on of a curvature PNP transistor for uniform device breakdown performance. Adjacent finger structures are spaced apart from one another to mitigate thermal transfer between device fingers.
Abstract:
An electronic device includes a silicon-on-insulator (SOI) structure, and an electrostatic discharge (ESD) protection device, with an isolation layer having a thickness and extending in a trench from a first implanted region. The ESD protection device includes a conductive field plate that extends over a portion of the first implanted region and past the first implanted region and over a portion of the isolation layer by an overlap distance that is 3.5 to 5.0 times the thickness of the isolation layer. In one example, the ESD protection device has a finger or racetrack shape, and the first implanted region and a second implanted region extend around first and second turn portions of the finger shape.
Abstract:
A semiconductor device includes a medium voltage MOSFET having a vertical drain drift region between RESURF trenches containing field plates which are electrically coupled to a source electrode of the MOSFET. A split gate with a central opening is disposed above the drain drift region between the RESURF trenches. A two-level LDD region is disposed below the central opening in the split gate. A contact metal stack makes contact with a source region at lateral sides of the triple contact structure, and with a body contact region and the field plates in the RESURF trenches at a bottom surface of the triple contact structure. A perimeter RESURF trench surrounds the MOSFET. A field plate in the perimeter RESURF trench is electrically coupled to the source electrode of the MOSFET. An integrated snubber may be formed in trenches formed concurrently with the RESURF trenches.
Abstract:
A semiconductor device includes a medium voltage MOSFET having a vertical drain drift region between RESURF trenches containing field plates which are electrically coupled to a source electrode of the MOSFET. A split gate with a central opening is disposed above the drain drift region between the RESURF trenches. A two-level LDD region is disposed below the central opening in the split gate. A contact metal stack makes contact with a source region at lateral sides of the triple contact structure, and with a body contact region and the field plates in the RESURF trenches at a bottom surface of the triple contact structure. A perimeter RESURF trench surrounds the MOSFET. A field plate in the perimeter RESURF trench is electrically coupled to the source electrode of the MOSFET. An integrated snubber may be formed in trenches formed concurrently with the RESURF trenches.
Abstract:
A vertical, high-voltage MOS transistor, which has a source region, a body contact region, and a number of trenches structures with field plates, and a method of forming the MOS transistor increase the on-state resistance of the MOS transistor by reducing the trench pitch. Trench pitch can be reduced with metal contacts that simultaneously touch the source regions, the body contact regions, and the field plates. Trench pitch can also be reduced with a gate that increases the size of the LDD region.
Abstract:
A trench MOSFET device includes a semiconductor layer of a first doping type. MOS transistor cells are in a body region of a second doping type in the semiconductor layer. The transistor cells include a first cell type including a first trench providing a first gate electrode or the first gate electrode is on the semiconductor surface between the first trench and a second trench, and a first source region is formed in the body region. The first gate electrode is electrically isolated from the first source region. A second cell type has a third trench providing a second gate electrode or the second gate electrode is on the semiconductor surface between the third trench and a fourth trench, and a second source region is in the body region. An electrically conductive member directly connects the second gate electrode, first source region and second source region together.
Abstract:
A trench MOSFET device includes a semiconductor layer of a first doping type. MOS transistor cells are in a body region of a second doping type in the semiconductor layer. The transistor cells include a first cell type including a first trench providing a first gate electrode or the first gate electrode is on the semiconductor surface between the first trench and a second trench, and a first source region is formed in the body region. The first gate electrode is electrically isolated from the first source region. A second cell type has a third trench providing a second gate electrode or the second gate electrode is on the semiconductor surface between the third trench and a fourth trench, and a second source region is in the body region. An electrically conductive member directly connects the second gate electrode, first source region and second source region together.
Abstract:
A trench MOSFET device includes a semiconductor layer of a first doping type. MOS transistor cells are in a body region of a second doping type in the semiconductor layer. The transistor cells include a first cell type including a first trench providing a first gate electrode or the first gate electrode is on the semiconductor surface between the first trench and a second trench, and a first source region is formed in the body region. The first gate electrode is electrically isolated from the first source region. A second cell type has a third trench providing a second gate electrode or the second gate electrode is on the semiconductor surface between the third trench and a fourth trench, and a second source region is in the body region. An electrically conductive member directly connects the second gate electrode, first source region and second source region together.
Abstract:
A vertical, high-voltage MOS transistor, which has a source region, a body contact region, and a number of trenches structures with field plates, and a method of forming the MOS transistor increase the on-state resistance of the MOS transistor by reducing the trench pitch. Trench pitch can be reduced with metal contacts that simultaneously touch the source regions, the body contact regions, and the field plates. Trench pitch can also be reduced with a gate that increases the size of the LDD region.