| http://www.w3.org/ns/prov#value | - In this case, however, the printing surface 12 c of the conductive paste filler 12 is made flat. [0114] Meanwhile, Ag, Cu, C, Cu coated with Ag and other conductive pastes can be used to form the conductive paste filler 12. [0115] Also, while the conductive paste filler 12 is formed by screen printing as described above, another suitable printing technique is used for this purpose. [0116] Next, th
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