Flexible Electronics

Printed Flexible Electronics and Sensors Ana Claudia Arias, Ph.D. Printed Electronic Devices Electronic Materials and Devices Laboratory  s =  sl +  l . cos   s =  sl +  l . cos 

Motivation for printed flexible electronics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Amazon Kindle A lot of activity on displays: products on the market ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Flexible display demonstrators PARC Lucent

Printed electronics applications ,[object Object],Duracell: Battery tester Cypak: Intelligent Pharmaceutical Packaging PolyIC: RFID CSG: via etching Plastic Logic: e-paper CDT: OLED displays Konarka: Solar cell Pelikon: EL displays Power Paper: battery

Approaches: From inorganic rigid materials to flexible systems Courtesy of Prof. John Rogers ,[object Object],[object Object],[object Object],[object Object],[object Object]

Approaches: Organic and inorganic materials ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],PARC’s approach: Solution-based electronics Electronic components printed like documents are printed

From photolithography to additive processing Many processing steps and a lot of materials waste One step for patterning and deposition Additive printing Photo - lithography resist Deposit film resist Deposit film

Thin-film transistors are the building blocks for electronics ,[object Object],[object Object],[object Object],semiconductor Display pixel via layer drain pad gate line media dielectric data line Top view gate line data line pixel pad ~ 300 mm TFT

All additive printed arrays ,[object Object],[object Object],[object Object],[object Object],[object Object],Gate line Data line Semiconductor Pixel pad 340 um 680 um PARC has demonstrated all-printed TFT backplanes for displays

Technology platform creation: Working with clients to accelerate their entry to market

Sensor tape project ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Circuit integration with printed sensors MEMS sensors Printed organic amplifiers After write V sd = -5,-20V Pressure signal after amplifier Pressure signal without amplifier Use printed amplifier to boost write voltage into memory cell V DD V out V in bias Switch TFTs memory TFT

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Flexible Electronics

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Flexible Electronics