	US 11,808,723 B2
	Adaptive test method and designs for low power mox sensor
Malek Brahem, Singapore (SG); Hatem Majeri, Aix en Provence (FR); Olivier Le Neel, Singapore (SG); and Ravi Shankar, Singapore (SG)
Assigned to STMICROELECTRONICS PTE LTD, Singapore (SG)
Filed by STMICROELECTRONICS PTE LTD, Singapore (SG)
Filed on Apr. 21, 2021, as Appl. No. 17/236,750.
Application 17/236,750 is a division of application No. 16/217,631, filed on Dec. 12, 2018, granted, now 11,009,474.
Claims priority of provisional application 62/610,459, filed on Dec. 26, 2017.
Prior Publication US 2021/0247344 A1, Aug. 12, 2021
Int. Cl. G01N 27/12 (2006.01); G01N 33/00 (2006.01)

CPC G01N 27/123 (2013.01) [G01N 27/125 (2013.01); G01N 33/0031 (2013.01); G01N 33/0047 (2013.01); G01N 33/0065 (2013.01); G01N 33/0075 (2013.01)]

21 Claims

1. A method, comprising:

activating a first gas sensor, the first gas sensor including a first semiconductor metal oxide (SMO) film configured to detect a first gas concentration range;

measuring, by the first gas sensor, a concentration of a gas in a surrounding environment;

determining that the concentration of the gas is outside of the first gas concentration range;

deactivating, in response to determining that the concentration of the gas is outside of the first gas concentration range, the first gas sensor; and

activating, in response to determining that the concentration of the gas is outside of the first gas concentration range, a second gas sensor, the second gas sensor including a second SMO film configured to detect a second gas concentration range.