公开(公告)号：US20210117501A1

公开(公告)日：2021-04-22

申请号：US17071577

申请日：2020-10-15

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro Paolo BRAMANTI

IPC: G06F17/16 ,  G01P15/18 ,  G01R33/00 ,  G01V7/06

Abstract: A method and system for rotating a vector, including at least one lookup table (LUT) including data corresponding to the vector being rotated around a first angle and a second angle, processing circuitry configured for accessing the at least one LUT for incrementally rotating the vector around the first and second angles, where accessing includes identifying an LUT input entry and selecting a corresponding LUT output entry, the corresponding output entry including an incremental angular rotation (IAR) of the vector around the first angle or the second angle, and a comparator configured to generate a comparator signal based upon comparing a counter incremented by the IAR with the first angle or the second angle, the processing circuitry further configured to iteratively access the at least one LUT, based on the comparator signal, for completing the incremental rotation of the vector around the first angle and the second angle.

公开(公告)号：US20200321457A1

公开(公告)日：2020-10-08

申请号：US16376482

申请日：2019-04-05

Applicant: STMicroelectronics S.r.l.

Inventor： Alessandro Paolo BRAMANTI ,  Alberto PAGANI

IPC: H01L29/778 ,  H01L29/417 ,  G01R31/26

Abstract: Embodiments are directed to electrically confined ballistic devices, circuits, and networks. One such device includes a heterostructure that has a first semiconductor layer, a second semiconductor layer, and a two-dimensional electrode gas (2DEG) layer between the first and second semiconductor layers. The device further includes an input electrode electrically coupled to the 2DEG layer and an output electrode electrically coupled to the 2DEG layer. A first confinement electrode is positioned on the heterostructure. The first confinement electrode, in use, generates first space charge regions which at least partially define a boundary of the ballistic device within the 2DEG layer between the input electrode and the output electrode in response to a first voltage.

公开(公告)号：US20190312136A1

公开(公告)日：2019-10-10

申请号：US16377080

申请日：2019-04-05

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Alessandro Paolo BRAMANTI ,  Alberto PAGANI

IPC: H01L29/76 ,  H01L29/10 ,  H01L29/423

Abstract: A device includes a particle propagation channel, a particle deflector, a particle source, and a particle sink. The particle deflector facilitates ballistic transport of particles from a particle inflow portion through a particle flow deflection portion to a particle outflow portion. The particle deflector is arranged at the particle flow deflection portion and is activatable to deflect particles in the flow deflection portion and is configured to selectively prevent the particles from reaching the particle outflow portion. The particle source and particle sink are configured to cause a current path of the particles through the device.