摘要:
A device is provided that comprises a first pillar disposed in a first region and overlying a base structure, and a second pillar disposed in a second region and overlying the base structure and being spaced apart from the first pillar by a device region. A bridge is disposed in the device region with a first end connected to the first pillar and a second end connected to the second pillar. The bridge includes a top, sides, and a bottom. The bridge is formed from one or more heterostructures with an undercut opening extending from the bottom to an underlying structure. A four-sided conductive contact wraps around and substantially surrounds the bridge around its top, its sides, and its bottom along at least a portion of its length between the first and second end.
摘要:
A method of forming an integrated circuit can include forming a heterostructure over a substrate structure, wherein the given substrate structure comprises a given semiconductor material. The method can include etching a castellated channel region in an e-mode device area of the heterostructure that defines a plurality of ridge channels interleaved between a plurality of trenches, the ridge channels comprising another semiconductor material. The method can also include forming an isolation region on the heterostructure to electrically isolate the e-mode device area from a d-mode device area of the heterostructure. The method can further include forming a mask with an opening that defines a castellated gate opening overlying the castellated channel region and the mask defines an opening overlaying a single planar gate overlying the d-mode device area of the heterostructure. The method can also include performing a contact fill with conductive material to form a castellated gate contact.
摘要:
A circuit is provided that includes a castellated channel device that comprises a heterostructure overlying a substrate structure, a castellated channel device area formed in the heterostructure that defines a plurality of ridge channels interleaved between a plurality of trenches, and a three-sided castellated conductive gate contact that extends across the castellated channel device area. The three-sided gate contact substantially surrounds each ridge channel around their tops and their sides to overlap a channel interface of heterostructure of each of the plurality of ridge channels. The three-sided castellated conductive gate contact extends along at least a portion of a length of each ridge channel.
摘要:
A device is provided that comprises a first pillar disposed in a first region and overlying a base structure, and a second pillar disposed in a second region and overlying the base structure and being spaced apart from the first pillar by a device region. A bridge is disposed in the device region with a first end connected to the first pillar and a second end connected to the second pillar. The bridge includes a top, sides, and a bottom. The bridge is formed from one or more heterostructures with an undercut opening extending from the bottom to an underlying structure. A four-sided conductive contact wraps around and substantially surrounds the bridge around its top, its sides, and its bottom along at least a portion of its length between the first and second end.
摘要:
A transistor device is provided that comprises a base structure, and a superlattice structure overlying the base structure and comprising a multichannel ridge having sloping sidewalls. The multichannel ridge comprises a plurality of heterostructures that each form a channel of the multichannel ridge, wherein a parameter of at least one of the heterostructures is varied relative to other heterostructures of the plurality of heterostructures. The transistor device further comprises a three-sided gate contact that wraps around and substantially surrounds the top and sides of the multichannel ridge along at least a portion of its depth.
摘要:
A transistor device is provided that comprises a base structure, and a superlattice structure overlying the base structure and comprising a multichannel ridge having sloping sidewalls. The multichannel ridge comprises a plurality of heterostructures that each form a channel of the multichannel ridge, wherein a parameter of at least one of the heterostructures is varied relative to other heterostructures of the plurality of heterostructures. The transistor device further comprises a three-sided gate contact that wraps around and substantially surrounds the top and sides of the multichannel ridge along at least a portion of its depth.
摘要:
An integrated circuit is disclosed that includes a single channel device having a first portion of a single shared heterostructure overlying a substrate structure in a single channel device area, and a gate contact that is in contact with the first portion of the single shared heterostructure. The integrated circuit also includes a multichannel device comprising a second portion of the single shared heterostructure overlying the substrate structure in a multichannel device area, a barrier layer overlying the second portion of the single shared heterorstructure, and a superlattice structure overlying the barrier layer, the superlattice structure comprising a plurality of heterostructures. An isolation region in the single shared heterostructure electrical isolates the single channel device from the multichannel device.
摘要:
An integrated circuit is disclosed that includes a single channel device having a first portion of a single shared heterostructure overlying a substrate structure in a single channel device area, and a gate contact that is in contact with the first portion of the single shared heterostructure. The integrated circuit also includes a multichannel device comprising a second portion of the single shared heterostructure overlying the substrate structure in a multichannel device area, a barrier layer overlying the second portion of the single shared heterostructure, and a superlattice structure overlying the barrier layer, the superlattice structure comprising a plurality of heterostructures. An isolation region in the single shared heterostructure electrical isolates the single channel device from the multichannel device.
摘要:
A transistor device is provided that comprises a base structure, and a superlattice structure overlying the base structure and comprising a multichannel ridge having sloping sidewalls. The multichannel ridge comprises a plurality of heterostructures that each form a channel of the multichannel ridge, wherein a parameter of at least one of the heterostructures is varied relative to other heterostructures of the plurality of heterostructures. The transistor device further comprises a three-sided gate contact that wraps around and substantially surrounds the top and sides of the multichannel ridge along at least a portion of its depth.
摘要:
A transistor is provided that comprises a source region overlying a base structure, a drain region overlying the base structure, and a block of semiconducting material overlying the base structure and being disposed between the source region and the drain region. The block of semiconducting material comprises a gate controlled region adjacent the source region, and a drain access region disposed between the gate controlled region and the drain region. The drain access region is formed of a plurality of semiconducting material ridges spaced apart from one another by non-channel trench openings, wherein at least a portion of the non-channel trench openings being filled with a doped material to provide a depletion region to improve breakdown voltage of the transistor.