公开(公告)号：US20240157294A1

公开(公告)日：2024-05-16

申请号：US18508934

申请日：2023-11-14

Applicant: QUALCOMM Technologies, Inc.

Inventor： Eric Paul LEE ,  Jim Chih-Min CHENG

IPC: B01D53/86 ,  B01D39/20 ,  B01D46/00 ,  B01D53/85 ,  G01N33/00

CPC classification number: B01D53/86 ,  B01D39/20 ,  B01D46/0036 ,  B01D53/85 ,  G01N33/0013

Abstract: Commercially available gas filters are too large for mobile form-factor gas sensors. These sensors require filters with planar dimensions in the millimeter range and thicknesses of 1 mm or less and combined with long term and harsh conditions survivability. Furthermore, custom filters made small enough to be applied onto mobile form-factor gas sensors are generally not specific enough to support multi-gas detection. This invention describes a novel structured filter: (1) derived from principles of macroscale gas separation columns, (2) made compact enough to be utilized at millimeter scale and microscale levels, and (3) made compatible with mobile requirements and some methodology for usage in micro gas spectroscopy platforms.