公开(公告)号：SG115440A1

公开(公告)日：2005-10-28

申请号：SG200200080

申请日：1999-09-30

Applicant: TOPPAN FORMS CO LTD

Inventor： YASUHIRO ENDO ,  YASUO KAGAMI ,  TORU MARUYAMA ,  KAZUNARI KODAMA

IPC: H01B1/20 ,  G06K19/077 ,  H05K1/09 ,  H05K3/46 ,  H01B1/00 ,  H01L21/50 ,  H01Q1/38

Abstract: There is provided a photosetting conductive paste that has a surface resistance of no greater than 200 m OMEGA /sq. upon curing by light irradiation. The photosetting conductive paste comprises conductive powder and a photosetting resin composition in specific amounts. The conductive powder contains dendritic conductive powder and scaly conductive powder at 80% or greater of che total conductive powder, the dendritic conductive powder having a mean particle size of 0.05-1.0 mu m, a specific surface area of 0.5-5.0 m /g, and the scaly conductive powder having a mean particle size of 1.0-10.0 mu m and a specific surface area of 0.5-5.0 m /g, wherein the weight ratio of the dendritic conductive powder and scaly conductive powder is 6/40 - 95/5. There is also provided a method of forming an antenna for a radio frequency identification medium that comprises printing the conductive paste on a substrate in an antenna-shaped pattern and curing it.

公开(公告)号：SG105526A1

公开(公告)日：2004-08-27

申请号：SG200200081

申请日：1999-09-30

Applicant: TOPPAN FORMS CO LTD

Inventor： YASUHIRO ENDO ,  YASUO KAGAMI ,  TORU MARUYAMA ,  KAZUNARI KODAMA

IPC: H01B1/20 ,  G06K19/077 ,  H05K1/09 ,  H05K3/46 ,  H01Q13/26

Abstract: There is provided a photosetting conductive paste that has a surface resistance of no greater than 200 m OMEGA /sq. upon curing by light irradiation. The photosetting conductive paste comprises conductive powder and a photosetting resin composition in specific amounts. The conductive powder contains dendritic conductive powder and scaly conductive powder at 80% or greater of che total conductive powder, the dendritic conductive powder having a mean particle size of 0.05-1.0 mu m, a specific surface area of 0.5-5.0 m /g, and the scaly conductive powder having a mean particle size of 1.0-10.0 mu m and a specific surface area of 0.5-5.0 m /g, wherein the weight ratio of the dendritic conductive powder and scaly conductive powder is 6/40 - 95/5. There is also provided a method of forming an antenna for a radio frequency identification medium that comprises printing the conductive paste on a substrate in an antenna-shaped pattern and curing it.