Transistor having a superlattice
First Claim
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1. A transistor comprising:
- spaced source and drain regions with a channel region therebetween;
said channel region comprising a gate electrode, and a superlattice spaced apart by a gate insulator, said superlattice having a plurality of undoped interleaved wide and narrow bandgap layers, said layers extending between the source and drain regions.
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Abstract
A transistor has a superlattice in the channel region. The superlattice has alternate interleaved layers of undoped wide and narrow bandgap materials with the layers extending in a direction parallel to the channel region. Preferably a narrow band gap layer is adjacent a gate insulator to provide maximum increase in mobility.
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18 Claims
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1. A transistor comprising:
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spaced source and drain regions with a channel region therebetween; said channel region comprising a gate electrode, and a superlattice spaced apart by a gate insulator, said superlattice having a plurality of undoped interleaved wide and narrow bandgap layers, said layers extending between the source and drain regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification