摘要:
Relative positioning of a control electrode (130) and a field plate (150) is determined by a single processing step such that the field plate is self-aligned to the control electrode in order to reduce variations in transistor performance associated with manufacturing process variations.
摘要:
A semiconductor device, such as a laterally diffused metal-oxide-semiconductor (LDMOS) transistor, includes a semiconductor substrate in which a source region and a drain region are disposed. The drain region has a drain finger terminating at a drain end. A gate structure is supported by the semiconductor substrate between the source region and the drain region, the gate structure extending laterally beyond the drain end. A drift region in the semiconductor substrate extends laterally from the drain region to at least the gate structure. The drift region is characterized by a first distance between a first sidewall of the drain finger and a second sidewall of the gate structure, and the gate structure is laterally tilted away from the drain region at the drain end of the drain finger to a second distance that is greater than the first distance.
摘要:
A monolithic semiconductor structure includes a stack of layers. The stack includes a substrate; a first layer made from a first semiconductor material; and a second layer made from a second semiconductor material. The first layer is situated between the substrate and the second layer and at least one of the first semiconductor material and the second semiconductor material contains a III-nitride material. The structure includes a power transistor, including a body formed in the stack of layers; a first power terminal at a side of the first layer facing the second layer; a second power terminal at least partly formed in the substrate; and a gate structure for controlling the propagation through the body of electric signals between the first power terminal and the second power terminal. The structure further includes a vertical Schottky diode, including: an anode; a cathode including the substrate, and a Schottky barrier between the cathode and the anode, the Schottky barrier being situated between the substrate and a anode layer in the stack of layers.