Title :
CMOS image sensors for subretinal implant system
Author :
Mazza, M. ; Bertrand, D. ; Renaud, P. ; Ionescu, A.M.
Author_Institution :
Swiss Fed. Inst. of Technol., Lausanne, Switzerland
fDate :
28 Sept.-2 Oct. 2003
Abstract :
Visual capabilities recovery for some kind of illness is possible through subretinal implantable device stimulation. Two possible approaches for retinal pixel are proposed, fabricated in 0.35μm CMOS, tested and compared including electronic response on a human tissue like interface. In these solutions, power consumption has been proved to he dominated by electrode stimulation and, in normal condition, typical consumption is below 1 mW. The proposed pixel architectures, with 120 μm (LICOS) and 100 μm (WATCH) inter-pixel step, provide the smallest, standalone, highly integrated, subretinal implantable chip ever reported.
Keywords :
CMOS image sensors; eye; prosthetics; 0.35 micron; 1 mW; 100 micron; 120 micron; CMOS; CMOS image sensors; LICOS; WATCH; electrode stimulation; electronic response; highly integrated; human tissue like interface; inter-pixel step; pixel architectures; power consumption; retinal pixel; standalone; subretinal implant system; visual capabilities; CMOS image sensors; CMOS technology; Circuits; Energy consumption; Frequency; Humans; Implants; Photoreceptors; Retina; Signal generators;
Conference_Titel :
Semiconductor Conference, 2003. CAS 2003. International
Print_ISBN :
0-7803-7821-0
DOI :
10.1109/SMICND.2003.1252432
