ABSTRACT Inkjetrinted Radio Frequency Passive Components Inkjet printing is a mature technique for graphic arts. It excels at customized, largearea, highresolution, and smallvolume production. With the developments in conductive, dielectric, and even semiconductinginks theres potential for large area inkjet electronics fabrication. Passive radio frequency devices can benefit greatly from a printing process the size of the devices defined by the frequency of operation. The large size of radio frequency passives mean that they either take up expensive space on chip” or they are fabricated on a separate lower cost substrate and bonded to the chips. This has hindered costsensitive high volume pplications such as radio frequency identification tags. work on inkjetprinted conductors for passive antennas on microwave substrates and even paperlittle work on printing of the dielctric materials aimed at radio frequency passives Both the conductor and dielectric need to be integrated to create a multilayer inkjet printing process capable of making quality passives capacitors and inductors. Three inkjetprinted dielectrics are investigate in this thesisa ceramic (alumina), a thermalcured polymer (poly 4 vinyl phenol), and a UVcure polymer (acrylic based). oth a silver nanoparticle ink a custom in-house formulated particlefree silver ink explored. The focus is mainly capacitors and inductors. ompar to low frequency electronics, radio frequency components have additional sensitivity regarding skin depth of the conductor surface roughness, as well as dielectric constant and loss tangent the dielectric. concerns are investigated with the aim making the highest quality components possible and understand the current limitations of inkjetfabricated radio frequency devices. An inkjetprinted alumina dielectric provides a low loss tangent ~0.001 and high density
ABSTRACT Inkjetrinted Radio Frequency Passive Components Inkjet printing is a mature technique for graphic arts. It excels at customized, largearea, highresolution, and smallvolume production. With the developments in conductive, dielectric, and even semiconductinginks theres potential for large area inkjet electronics fabrication. Passive radio frequency devices can benefit greatly from a printing process the size of the devices defined by the frequency of operation. The large size of radio frequency passives mean that they either take up expensive space on chip” or they are fabricated on a separate lower cost substrate and bonded to the chips. This has hindered costsensitive high volume pplications such as radio frequency identification tags. work on inkjetprinted conductors for passive antennas on microwave substrates and even paperlittle work on printing of the dielctric materials aimed at radio frequency passives Both the conductor and dielectric need to be integrated to create a multilayer inkjet printing process capable of making quality passives capacitors and inductors. Three inkjetprinted dielectrics are investigate in this thesisa ceramic (alumina), a thermalcured polymer (poly 4 vinyl phenol), and a UVcure polymer (acrylic based). oth a silver nanoparticle ink a custom in-house formulated particlefree silver ink explored. The focus is mainly capacitors and inductors. ompar to low frequency electronics, radio frequency components have additional sensitivity regarding skin depth of the conductor surface roughness, as well as dielectric constant and loss tangent the dielectric. concerns are investigated with the aim making the highest quality components possible and understand the current limitations of inkjetfabricated radio frequency devices. An inkjetprinted alumina dielectric provides a low loss tangent ~0.001 and high density
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