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US 2011/0297832 A1Published application
Proximity Sensor
AssigneeAvago Technologies ECBU IP (Singapore) Pte. Ltd.
InventorsYufeng Yao, Sze Ping Ong, Wee Sin Tan
Life of this patent
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Abstract
A proximity sensor includes a printed circuit board (PCB); a first cup and a second cup embedded in the PCB; an electromagnetic radiation transmitter operably mounted in the first cup; and an electromagnetic radiation receiver operably mounted in the second cup.
Claims20
A proximity sensor comprising:
- a printed circuit board (PCB);
- a first cup and a second cup embedded in said PCB;
- an electromagnetic radiation transmitter operably mounted in said first cup;
- and
- an electromagnetic radiation receiver operably mounted in said second cup.
2 more elements
A proximity sensor comprising:
- a printed circuit board (PCB) having a top surface and a bottom surface and having a first cavity and a second cavity, said cavities having first and second openings, respectively, in said top surface;
- first and second cups provided in said first and second cavities, respectively;
- an infrared (IR) transmitter operably mounted in said first cup;
- an IR receiver operably mounted in said second cup;
- encapsulant substantially transparent to IR radiation filling each of said cups and forming a lens above each of said cups;
- a layer of material substantially opaque to IR radiation overlying said top surface of said PCB, said layer having a first aperture aligned with said lens above said first cup and a second aperture aligned with said lens above said second cup.
3 more elements
A method for making a proximity sensor comprising:
- providing a printed circuit board (PCB) with first and second cups embedded therein and having cup openings proximate a top surface of the printed circuit board;
- operably mounting an infrared (IR) transmitter in the first cup;
- and
- operably mounting an IR receiver in the second cup.
1 more element
Dependencies are inferred from the claim text.