Patent ID: 8623500

Claim:
A conductive paste comprising: a first fine metal particle covered by a first organic thin film formed by reaction of the first fine metal particle with a diacetylene that is HC≡C—C≡C(CH 2 ) 15 SiCl 3 ; HC≡C—C≡C(CH 2 ) 2 Si(CH 3 ) 2 (CH 2 ) 15 SiCl 3 ; HC≡C—C≡C(CH 2 ) 2 Si(CH 3 ) 2 (CH 2 ) 9 SiCl 3 ; CH 3 (CH 2 ) 3 C≡C—C≡C(CH 2 ) 15 SiCl 3 ; CH 3 (CH 2 ) 3 C≡C—C≡C(CH 2 ) 2 Si(CH 3 ) 2 (CH 2 ) 15 SiCl 3 ; or CH 3 (CH 2 ) 3 C≡C—C≡C(CH 2 ) 2 Si(CH 3 ) 2 (CH 2 ) 9 SiCl 3 ; and a second fine metal particle covered by a second organic thin film covalently bound to the surface of the second fine metal particle, the second organic thin film comprising molecules that include a chalcone at a first end and covalently bind to a surface of the second fine metal particle via Si or S at a second end.