公开(公告)号：US20240413828A1

公开(公告)日：2024-12-12

申请号：US18529146

申请日：2023-12-05

Applicant: Microchip Technology Incorporated

Inventor： Robert Lutwak ,  Lichung Ha

IPC: H03L7/26 ,  G01T1/16 ,  G04F5/14

Abstract: A method of manufacturing a vapor cell includes forming a body of the vapor cell having walls defining a cavity thereinbetween, the cavity having an amount of a subject material contained therein. The method also includes forming a pore structure having a substrate material with pores of a substantially uniform dimension formed therein, the pore structure disposed along a portion of one or more of the walls of the vapor cell. The method further includes forming a liner material of a uniform thickness over one or more internal surfaces of the pores, wherein the subject material exhibits a reduced wetting angle on the liner material which is less than a wetting angle of the subject material on the substrate material.

公开(公告)号：US20220039209A1

公开(公告)日：2022-02-03

申请号：US17449854

申请日：2021-10-04

Applicant: Microchip Technology Incorporated

Inventor： Lichung Ha ,  Jay Noble ,  David Guan ,  Armando T. Martins

IPC: H05B3/06 ,  H05B6/36

Abstract: Ovens for atomic clocks may include a body including a cavity within the body. A plurality of heating elements may be distributed around the body, each heating element of the plurality including coils of electrically resistive material. An arrangement of the plurality of heating elements may be such that far fields of magnetic fields having opposite polarities induced by respective coils of the heating elements overlap.

公开(公告)号：US11166342B1

公开(公告)日：2021-11-02

申请号：US16949222

申请日：2020-10-20

Applicant: Microchip Technology Incorporated

Inventor： Lichung Ha ,  Jay Noble ,  David Guan ,  Armando T. Martins

IPC: G04F5/14 ,  H05B6/12 ,  H05B6/36 ,  H05B3/06

Abstract: Ovens for atomic clocks may include a body including a cavity within the body. A plurality of heating elements may be distributed around the body, each heating element of the plurality including coils of electrically resistive material. An arrangement of the plurality of heating elements may be such that far fields of magnetic fields having opposite polarities induced by respective coils of the heating elements overlap.