Lithographic Film Circuits - A Review
نویسندگان
چکیده
P. S. A. Evans, P. M. Harrey, B. J. Ramsey & D. J. Harrison Abstra t Condu tive Lithographi Films are an emerging fabri ation pro ess for ele troni inter onne t and a range of passive omponent stru tures. This paper reviews the manufa ture, properties and appli ations of CLF ondu tors, and dis usses other lithographi ally deposited ele troni materials in luding resistive, diele tri and ferrite lms. Re ent developments in CLF te hnology in luding multilayer stru tures and on urrent printing of inter onne t with printed passive omponents are presented. Indexing Terms:Cir uit Boards, Condu tive Inks, Printed Films, O set Lithography, Printed Inter onne t, Redu ed Environmental Impa t. 1 Introdu tion:\Condu tive Lithographi Films" (CLF) [1℄, are an emerging fabri ation te hnologies for ele troni iruits and systems. The pro ess employs standard o set lithographi printing te hnology to deposit ele trially ondu tive lm ele troni ondu tors onto a wide range of exible media. More re ent work has on erned the development of additional lithographi ink formulations arrying other ele troni materials. We have established that omposite stru tures ontaining ondu tive, resistive, diele tri and ferromagneti layers an be manufa tured entirely by o set lithography, and this has resulted in printing te hniques for omposite apa itors and mi rowave stru tures. Ea h substrate layer an be printed rapidly, via a single printing operation, and CLF ir uits are onsequently heap to produ e. The lms are robust, withstanding a range of standard ir uit board test regimes, and present few disposal hazards. 2 The Lithographi Printing Pro ess:O set Lithography ( gure 1) is the te hnology used to mass produ e books and magazines. It is quite dissimilar to soalled \photo-lithography" pro esses employed in integrated ir uit and onventional et hed opper laminate wiring board produ tion. O set Lithography relies on the a tion of two dissimilar wetting fun tions on the surfa e of a smooth and unembossed printing plate. Ink Roller Water Roller Printing Plate Cylinder Impression Cylinder Blanket Cylinder Substrate
منابع مشابه
Time – strain monitoring system fabricated via offset lithographic printing Time – strain monitoring system fabricated via offset lithographic printing
This paper reports progress in the development of strain sensors fabricated using the Conductive Lithographic Film (CLF) printing process. Strain sensitive structures printed via an unmodified offset lithographic printing press using a silver loaded conductive ink have been deposited concurrently with circuit interconnect, to form an electronic smart packaging system. A system populated with SM...
متن کاملOmnidirectional, broadband light absorption using large-area, ultrathin lossy metallic film coatings
Resonant absorbers based on nanostructured materials are promising for variety of applications including optical filters, thermophotovoltaics, thermal emitters, and hot-electron collection. One of the significant challenges for such micro/nanoscale featured medium or surface, however, is costly lithographic processes for structural patterning which restricted from industrial production of compl...
متن کاملMIT-OSU-HP Focus center on non-lithographic Technologies for MEMS and nEMS
This newly formed center is part of an overall set of centers on MEMS/NEMS fundamentals supported by DARPA. The MITOSU-HP Focus Center aims to develop new methods for fabrication of MEMS and NEMS that do not use conventional lithographic methods. The Center leverages the leading expertise of MIT and OSU in MEMS and printed devices, with the printing expertise of HP. The focus center is organize...
متن کاملA technique to transfer metallic nanoscale patterns to small and non-planar surfaces.
Conventional lithographic methods (e.g., electron-beam lithography, photolithography) are capable of producing high-resolution structures over large areas but are generally limited to large (>1 cm(2)) planar substrates. Incorporation of these features on unconventional substrates (i.e., small (<1 mm(2)) and/or non-planar substrates) would open possibilities for many applications, including remo...
متن کاملCommunication and Sensing Circuits on Cellulose
This paper proposes a review of several circuits for communication and wireless sensing applications implemented on cellulose-based materials. These circuits have been developed during the last years exploiting the adhesive copper laminate method. Such a technique relies on a copper adhesive tape that is shaped by a photo-lithographic process and then transferred to the hosting substrate (i.e.,...
متن کاملDirect rapid prototyping of PDMS from a photomask film for micropatterning of biomolecules and cells.
The soft lithographic technique is a collection of simple and cost-effective patterning techniques which applies an elastomeric stamp to transfer a nano/micro-scale pattern. Patterning biological materials using soft lithography provides procedurally simple control of the surface chemistry and the cell environments. However, conventional methods for generating microstructures on a substrate req...
متن کامل