Method for making an optical proximity sensor
AssigneeStmicroelectronics Pte Ltd
InventorYonggang Jin
Life of this patent
Estimating the term…
Abstract
A method for making an optical proximity sensor includes forming a package top plate having an optical transmit opening and an optical receive opening extending therethrough, attaching an optical transmit element to the package top plate adjacent the optical transmit opening, and attaching an optical receive element to the package top plate adjacent the optical receive opening. A package body is formed onto the package top plate to define an optical transmit cavity receiving the optical transmit element and an optical receive cavity receiving the optical receive element.
Claims25
A method for making an optical proximity sensor comprising:
- forming a package top plate having an optical transmit opening and an optical receive opening both extending through the package top plate;
- attaching an optical transmit element to the package top plate adjacent the optical transmit opening;
- attaching an optical receive element to the package top plate adjacent the optical receive opening;
- and
- forming a package body onto the package top plate to define an optical transmit cavity receiving the optical transmit element and an optical receive cavity receiving the optical receive element.
A method for making an optical proximity sensor comprising:
- forming a package top plate having an optical transmit opening and an optical receive opening both extending through the package top plate;
- depositing glue on the package top plate adjacent the optical transmit opening and adjacent the optical receive opening;
- attaching an optical transmit element to the package top plate adjacent the optical transmit opening;
- attaching an optical receive element to the package top plate adjacent the optical receive opening;
- and
- forming a package body onto the package top plate comprising sidewalls around an outer perimeter of the package top plate and a separation wall extending between the sidewalls to define an optical transmit cavity receiving the optical transmit element and an optical receive cavity receiving the optical receive element.
An optical proximity sensor comprising:
- a package top plate having an optical transmit opening and an optical receive opening both extending through said package top plate;
- an optical transmit element attached to said package top plate adjacent the optical transmit opening;
- an optical receive element attached to said package top plate adjacent the optical receive opening;
- a package body attached onto said package top plate to define an optical transmit cavity receiving said optical transmit element and an optical receive cavity receiving said optical receive element, with a joint line being formed at an interface between said package body and said package top plate;
- and
- a connector plate assembly comprising an optical transmitter and an optical receiver attached to said package body so that said optical transmitter is aligned with the optical transmit cavity and said optical receiver is aligned with the optical receive cavity.
Dependencies are inferred from the claim text.