Global Patent Index - EP 1974815 A1

EP 1974815 A1 20081001 - Integrated micofluidic device with sensing and control circuits

Title (en)

Integrated micofluidic device with sensing and control circuits

Title (de)

Integrierte Mikrofluidikvorrichtung mit Abtast- und Steuerschaltungen

Title (fr)

Dispositif à microfluide intégré avec capteur et circuits de contrôle

Publication

EP 1974815 A1 20081001 (EN)

Application

EP 07104821 A 20070323

Priority

EP 07104821 A 20070323

Abstract (en)

An integrated microfluidic device has chambers (11-MN) for handling fluids, temperature sensing elements (T8, Tc) arranged to output analog signals, signal converters (Cs, ADC) for converting the analog signals to digital read signals, electrical heating elements (R) controlled by switching circuitry (T2), the signal converters and the switching circuitry comprising thin film transistors. The use of thin film transistors can enable lower cost and easier manufacture. The temperature sensing elements can avoid using analog matched transistor circuits, to avoid difficulties with non uniform characteristics of thin film transistors. The device can have multiplexing circuitry for multiplexing the read signals from more than one of the sensing elements to reduce the number of interconnects.

IPC 8 full level

B01L 3/00 (2006.01); B01L 7/00 (2006.01)

CPC (source: EP)

B01L 3/5027 (2013.01); B01L 3/502707 (2013.01); B01L 7/52 (2013.01); B01L 2200/147 (2013.01); B01L 2300/0819 (2013.01); B01L 2300/0861 (2013.01); B01L 2300/1822 (2013.01); B01L 2300/1827 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1974815 A1 20081001; WO 2008117194 A1 20081002

DOCDB simple family (application)

EP 07104821 A 20070323; IB 2008050986 W 20080317