Hybrid Printed Electronic Systems

Details

San Francisco, CA USA. Date of Talk: 4/21/2013

Speakers

Gregory L Whiting
Tse Nga Ng
Krivacic, Robert
Alexander V Tuganov
Janos Veres
Event

Hybrid Printed Electronic Systems

Printed, flexible sensor systems are promising for smart labels and wearable electronics. In certain high performance applications complex computational functionalities are desirable, such as signal processing and high speed wireless communication, which are readily available in conventional silicon devices. In order to combine the benefits of flexible, distributed sensors and the high performance of silicon electronics we have developed a hybrid fabrication platform that allows for organic/printed electronics alongside pre-formed microelectronic devices using digital fabrication. This approach allows for high performance sense-and-transmit systems to be developed incorporating organic devices with little change in mechanical flexibility due to the use of small, low profile integrated circuits. This report describes a hybrid sensing platform which reads in data from multiple printed sensors based either on organic or nanoparticle semiconductors (resistive light and heat sensors in this case), processes that information at high resolution and transmits it wirelessly to a separate reading device. Starting with a flexible PEN substrate, printed components are used for sensing, multiplexing, interconnection, the antenna and ancillary passive elements, with low-profile microelectronic devices used for analogue-to-digital conversion, processing and wireless transmission. As the microelectronic components are driven at a potential less than 5 V it is desirable for all other elements to operate at the same voltage. For example, for multiplexing of multiple sensor signals, we have developed complementary printed field-effect transistors based on organic semiconductors using a high-k composite dielectric. These devices can be operated at low-voltage (complementary inverters show gain > 1 at a 2 V input). Other relevant issues that will be discussed include impedance matching between the sensors and circuits, robust printed interconnection of the chips, interface electronics between printed and discrete components, and power constraints.

Additional information

Focus Areas

Our work is centered around a series of Focus Areas that we believe are the future of science and technology.

FIND OUT MORE
Licensing & Commercialization Opportunities

We’re continually developing new technologies, many of which are available for¬†Commercialization.

FIND OUT MORE
News

PARC scientists and staffers are active members and contributors to the science and technology communities.

FIND OUT MORE