Resources Contact Us Home
Semiconductor layer structure with superlattice

Image Number 5 for United States Patent #7893424.

The semiconductor layer structure includes a superlattice composed of stacked layers of III-V compound semiconductors of a first and at least one second type. Adjacent layers of different types in the superlattice differ in composition with respect to at least one element, at least two layers of the same type have a different content of the at least one element, the content of the at least one element is graded within a layer of the superlattice, and the layers of the superlattice contain dopants in predefined concentrations, with the superlattice comprising layers that are doped with different dopants. In this way, the electrical, optical and epitaxial properties of the superlattice can be adapted in the best possible manner to given requirements, particularly epitaxial constraints.

  Recently Added Patents
Method for preparing an organic film at the surface of solid support under non-electrochemical conditions, solid support thus obtained and preparation kit
Image processing system, image processing method and program for image processing
Probe for ultrasound diagnostic apparatus
Circuit breakers
Serving base station selection based on backhaul capability
Methods for fabricating semiconductor devices
Computer implemented apparatus for generating and filtering creative proposal
  Randomly Featured Patents
Implantable medical device incorporating distributed core, step-up transformer
Fitness apparatus
Thermal electron emission backlight device
Power semiconductor device comprising a semiconductor chip stack and method for producing the same
Devices and methods for measuring temperature of a patient
Line-transfer device
Environmental test apparatus with partition-isolated thermal chamber
Protein tyrosine phosphatase inhibitor
Vehicle instrument panel with top-mount airbag deployment door having contact bend initiator
Method for correcting astigmatism in electron emission spectromicroscopy imaging