公开(公告)号：US20220406738A1

公开(公告)日：2022-12-22

申请号：US17732822

申请日：2022-04-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Swaminathan SANKARAN ,  Adam FRUEHLING ,  Baher HAROUN ,  Scott Robert SUMMERFELT ,  Benjamin Stassen COOK

IPC: H01L23/66 ,  H01Q1/22 ,  H01Q9/04

Abstract: An integrated circuit (IC) includes a semiconductor substrate having a first surface and a second surface opposite the first surface. A through wafer trench (TWT) extends from the first surface of the semiconductor substrate to the second surface of the semiconductor substrate. Dielectric material is in the TWT. An interconnect region has layers of dielectric on the first surface of the substrate. The interconnect region has a conductive transmit patch. An antenna is formed, at least in part, by the dielectric material in the TWT and the transmit patch in the interconnect region. The antenna is configured to transmit or receive electromagnetic radiation between the transmit patch and the second surface of the semiconductor substrate through the dielectric material within the trench.

公开(公告)号：US20200257250A1

公开(公告)日：2020-08-13

申请号：US16589176

申请日：2019-10-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Bichoy BAHR ,  Argyrios DELLIS ,  Adam FRUEHLING ,  Juan Alejandro HERBSOMMER

IPC: G04F5/00

Abstract: A clock generator includes a hermetically sealed cavity and clock generation circuitry. A dipolar molecule in the hermetically sealed cavity has a quantum rotational state transition at a fixed frequency. The clock generation circuitry generates an output clock signal based on the fixed frequency of the dipolar molecule. The clock generation circuitry includes a detection circuit, a reference oscillator, and control circuitry. The detection circuit generates a first detection signal and a second detection signal representative of amplitude of signal at an output of the hermetically sealed cavity responsive to a first sweep signal and a second sweep signal input to the hermetically sealed cavity. The control circuitry sets a frequency of the reference oscillator based on a difference in time of identification of the fixed frequency of the dipolar molecule in the first detection signal and the second detection signal.