EP 2909861 A1 20150826 - IMAGE SENSOR HAVING IMPROVED QUANTUM EFFICIENCY AT LARGE WAVELENGTHS
Title (en)
IMAGE SENSOR HAVING IMPROVED QUANTUM EFFICIENCY AT LARGE WAVELENGTHS
Title (de)
BILDSENSOR MIT VERBESSERTER QUANTENEFFIZIENZ BEI GROSSEN WELLENLÄNGEN
Title (fr)
CAPTEUR D'IMAGE A EFFICACITE QUANTIQUE AMELIOREE DANS LES GRANDES LONGUEURS D'ONDE
Publication
Application
Priority
- FR 1259947 A 20121018
- EP 2013071636 W 20131016
Abstract (en)
[origin: WO2014060479A1] The invention relates to an image sensor particularly suitable for low-light vision (particularly night vision). The sensor is formed on an integrated circuit (IC) chip from a silicon substrate and includes: an array (MP) of rows and columns of active pixels, each including at least one photodiode and transistors; and circuits (CTRL) for controlling said array, located outside the array, and signal reading circuits (RD) located outside the array. The photodiodes of the sensor are formed in an active monocrystalline silicon layer, the resistivity of which is at least 500 ohms/cm if said active layer is an epitaxial layer on the silicon substrate and at least 2,000 ohms/cm if said active layer consists of the top portion of the silicon substrate. The control circuits (CTRL) and the circuits (RD) for reading the sensor are formed in at least one doped total casing (DPW) of the same type as the active monocrystalline silicon layer and having a resistivity no higher than 30 ohms/cm. Said casing is formed in the active layer and does not include the array.
IPC 8 full level
H01L 27/146 (2006.01); H04N 25/00 (2023.01)
CPC (source: EP US)
H01L 27/14609 (2013.01 - EP US); H01L 27/1461 (2013.01 - US); H01L 27/1464 (2013.01 - EP US); H01L 27/14643 (2013.01 - EP US); H01L 27/14632 (2013.01 - EP US)
Citation (examination)
US 2007120131 A1 20070531 - HASEGAWA AKIHIRO [JP], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014060479 A1 20140424; EP 2909861 A1 20150826; FR 2997225 A1 20140425; FR 2997225 B1 20160101; IL 238175 A0 20150531; JP 2015537375 A 20151224; KR 20150060787 A 20150603; US 2016126265 A1 20160505
DOCDB simple family (application)
EP 2013071636 W 20131016; EP 13776834 A 20131016; FR 1259947 A 20121018; IL 23817515 A 20150412; JP 2015537242 A 20131016; KR 20157009953 A 20131016; US 201314436509 A 20131016