公开(公告)号：US20210011569A1

公开(公告)日：2021-01-14

申请号：US17038546

申请日：2020-09-30

Applicant: STMicroelectronics S.r.l.

Inventor： Calogero Marco Ippolito ,  Angelo Recchia ,  Antonio Cicero ,  Pierpaolo Lombardo ,  Michele Vaiana

IPC: G06F3/045 ,  G06F3/041 ,  G01R31/28 ,  G09G3/00

Abstract: A touchscreen resistive sensor includes a network of resistive sensor branches coupled to a number of sensor nodes arranged at touch locations of the touchscreen. A test sequence is performed by sequentially applying to each sensor node a reference voltage level, jointly coupling to a common line the other nodes, sensing a voltage value at the common line, and declaring a short circuit condition as a result of the voltage value sensed at the common line reaching a short circuit threshold. A current value level flowing at the sensor node to which the reference voltage level is applied is sensed and a malfunction of the resistive sensor branch coupled with the sensor node to which a reference voltage level is applied is generated as a result of the current value sensed at the sensor node reaching an upper threshold or lower threshold.

公开(公告)号：US20180074000A1

公开(公告)日：2018-03-15

申请号：US15808408

申请日：2017-11-09

Applicant: STMicroelectronics S.r.l.

Inventor： Pasquale Biancolillo ,  Angelo Recchia ,  Pasquale Franco ,  Antonio Cicero ,  Giuseppe Bruno

IPC: G01N27/18 ,  B81B7/02 ,  B81B7/04 ,  B81C1/00 ,  B81B7/00 ,  G01N33/00 ,  G01N30/66

CPC classification number: G01N27/18 ,  B81B7/02 ,  B81B7/04 ,  B81B2201/02 ,  B81B2201/0278 ,  G01N30/66 ,  G01N33/0027

Abstract: A semiconductor gas sensor device includes a first cavity that is enclosed by opposing first and second semiconductor substrate slices. At least one conducting filament is provided to extend over the first cavity, and a passageway is provided to permit gas to enter the first cavity. The sensor device may further including a second cavity that is hermetically enclosed by the opposing first and second semiconductor substrate slices. At least one another conducting filament is provided to extend over the second cavity.

公开(公告)号：US20150377813A1

公开(公告)日：2015-12-31

申请号：US14725842

申请日：2015-05-29

Applicant: STMicroelectronics S.r.l.

Inventor： Pasquale Biancolillo ,  Angelo Recchia ,  Pasquale Franco ,  Antonio Cicero ,  Giuseppe Bruno

IPC: G01N27/18 ,  B81C1/00 ,  G01N33/00 ,  B81B7/00

CPC classification number: G01N27/18 ,  B81B7/02 ,  B81B7/04 ,  B81B2201/02 ,  B81B2201/0278 ,  G01N30/66 ,  G01N33/0027

Abstract: A semiconductor gas sensor device includes a first cavity that is enclosed by opposing first and second semiconductor substrate slices. At least one conducting filament is provided to extend over the first cavity, and a passageway is provided to permit gas to enter the first cavity. The sensor device may further including a second cavity that is hermetically enclosed by the opposing first and second semiconductor substrate slices. At least one another conducting filament is provided to extend over the second cavity.

Abstract translation: 半导体气体传感器装置包括由相对的第一和第二半导体衬底切片包围的第一腔体。 提供至少一个导电细丝以在第一腔上延伸，并且设置通道以允许气体进入第一腔。 传感器装置还可以包括被相对的第一和第二半导体衬底切片气密地包围的第二腔体。 提供至少另一个导电细丝以在第二腔上延伸。