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http://dx.doi.org/10.4191/KCERS.2004.41.4.313

Photolithographic Properties of Photosensitive Ag Paste for Low Temperature Cofiring  

Park, Seong-Dae (High Frequency Materials Research Center, Korea Electronics Technology Institute)
Kang, Na-Min (Rapidus Inc.)
Lim, Jin-Kyu (Department of Chemistry and Material Science, Hanyang University)
Kim, Dong-Kook (Department of Chemistry and Material Science, Hanyang University)
Kang, Nam-Kee (High Frequency Materials Research Center, Korea Electronics Technology Institut)
Park, Jong-Chul (High Frequency Materials Research Center, Korea Electronics Technology Institute)
Publication Information
Abstract
Thick film photolithography is a new technology in that the lithography process such as exposure and development is applied to the conventional thick film process including screen-printing. In this research, low-temperature cofireable silver paste, which enabled the formation of thick film fine-line using photolithographic technology, was developed. The optimum composition for fine-line forming was studied by adjusting the amounts of silver powder, polymer and monomer, and the additional amount of photoinitiator, and then the effect of processing parameter such as exposing dose on the formation of fine-line was also tested. As the result, it was found that the ratio of polymer to monomer, silver powder loading, and the amount of photoinitiator were the main factors affecting the resolution of fine-line. The developed photosensitive silver paste was printed on low-temperature cofireable green sheet, then dried, exposed, developed in aqueous process, laminated, and fired. Results showed that the thick film fine-line under 20$\mu\textrm{m}$ width could be obtained after cofiring.
Keywords
Photosensitive; Silver paste; Photolithography; Fine-Line; Low-Temperature cofiring;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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