Electronic device using anisotropic conductive composition and film

Patent metadata

Field	Value
Publication number	US-9390831-B2
Application number	US-201213680893-A
Country	US
Kind code	B2
Filing date	Nov 19, 2012
Priority date	Nov 23, 2011
Publication date	Jul 12, 2016
Grant date	Jul 12, 2016

Abstract

An electronic device includes a connection material formed from an adhesive composition that includes: a polymer resin; a cationic polymerization catalyst represented by Formula 1; and an organic base,

where, in Formula 1, R 1 may be selected from the group of hydrogen, C 1 -C 6 alkyl, C 6 -C 14 aryl, —C(═O)R 4 , —C(═O)OR 5 , and —C(═O)NHR 6 (in which R 4 , R 5 , and R 6 may each independently be selected from C 1 -C 6 alkyl and C 6 -C 14 aryl), R 2 may be C 1 -C 6 alkyl, and R 3 may be selected from the group of a nitrobenzyl group, a dinitrobenzyl group, a trinitrobenzyl group, a benzyl group, a C 1 -C 6 alkyl-substituted benzyl group, and a naphthylmethyl group.

First claim

What is claimed is:

1. An electronic device comprising an anisotropic conductive connection material formed from an anisotropic conductive adhesive composition that includes: a polymer resin; a cationic polymerization catalyst represented by Formula 1; conductive particles, and an organic base, wherein the organic base includes at least one selected from the group of triethylamine, triisobutylamine, trioctylamine, triisodecylamine, triethanolamine, and an ammonium salt

wherein:
R 1 is selected from the group of hydrogen, C 1 -C 6 alkyl, C 6 -C 14 aryl, —C(═O)R 4 , —C(═O)OR 5 , and —C(═O)NHR 6 (in which R 4 , R 5 , and R 6 are each independently selected from C 1 -C 6 alkyl and C 6 -C 14 aryl),
R 2 is C 1 -C 6 alkyl, and
R 3 is selected from the group of a nitrobenzyl group, a dinitrobenzyl group, a trinitrobenzyl group, a benzyl group, a C 1 -C 6 alkyl-substituted benzyl group, and a naphthylmethyl group.

2. The electronic device as claimed in claim 1 , wherein:
R 1 is selected from the group of hydrogen, C 1 -C 4 alkyl, —C(═O)R 4 , and —C(═O)OR 5 (in which R 4 and R 5 are each independently C 1 -C 4 alkyl),
R 2 is C 1 -C 4 alkyl, and
R 3 is selected from the group of a nitrobenzyl group, a dinitrobenzyl group, a trinitrobenzyl group, and a naphthylmethyl group.

3. The electronic device as claimed in claim 1 , wherein R 1 is methyl, R 2 is methyl, and R 3 is a naphthylmethyl group.

4. The electronic device as claimed in claim 1 , wherein the polymer resin includes at least one of an epoxy resin or a phenoxy resin.

5. The electronic device as claimed in claim 1 , wherein:
the cationic polymerization catalyst represented by Formula 1 is present in an amount of about 0.1 to about 20 parts by weight, based on 100 parts by weight of the polymer resin, and
the organic base is present in an amount of about 0.1 to about 30 parts by weight, based on 100 parts by weight of the cationic polymerization catalyst represented by Formula 1.

6. A electronic device comprising an anisotropic adhesive film as and anisotropic conductive connection material, the anisotropic conductive adhesive film being formed from a mixture that includes a polymer resin, a cationic polymerization catalyst represented by Formula 1, conductive particles, and an organic base, the anisotropic conductive adhesive film exhibiting a decrease in adhesive strength of about 30% or less after being left at 25° C. for 300 hours,

wherein:
R 1 is selected from the group of hydrogen, C 1 -C 6 alkyl, C 6 -C 14 aryl, —C(═O)R 4 , —C(═O)OR 5 , and —C(═O)NHR 6 (in which R 4 and R 6 are each independently selected from C 1 -C 6 alkyl and C 6 -C 14 aryl),
R 2 is C 1 -C 6 alkyl, and
R 3 is selected from the group of a nitrobenzyl group, a dinitrobenzyl group, a trinitrobenzyl group, a benzyl group, a C 1 -C 6 alkyl-substituted benzyl group, and a naphthylmethyl group.

7. The electronic device as claimed in claim 6 , wherein:
R 1 is selected from the group of hydrogen, C 1 -C 4 alkyl, —C(═O)R 4 , and —C(═O)OR 5 (in which R 4 and R 5 are each independently C 1 -C 4 alkyl),
R 2 is C 1 -C 4 alkyl, and
R 3 is selected from the group of a nitrobenzyl group, a dinitrobenzyl group, a trinitrobenzyl group, and a naphthylmethyl group.

8. The electronic device as claimed in claim 6 , wherein R 1 is methyl, R 2 is methyl, and R 3 is a naphthylmethyl group.

9. The electronic device as claimed in claim 6 , wherein the polymer resin includes at least one of an epoxy resin or a phenoxy resin.

10. The electronic device as claimed in claim 6 , wherein the organic base includes at least one selected from the group of triethylamine, triisobutylamine, trioctylamine, triisodecylamine, triethanolamine, and an ammonium salt.

Assignees

• Park Kyoung Soo
• Kim Nam Ju
• Park Young Woo
• Seo Joon Mo
• Sul Kyung Il
• Uh Dong Seon
• Yu Arum
• Choi Hyun Min
• Han Jae Sun
• Cheil Ind Inc

Inventors

• Park Kyoung Soo
• Kim Nam Ju
• Park Young Woo
• Seo Joon Mo
• Sul Kyung Il
• Uh Dong Seon
• Yu Arum
• Choi Hyun Min
• Han Jae Sun

Classifications

• C09J9/02

  Electrically-conducting adhesives · CPC title

• H01B1/122

  Ionic conductors · CPC title

• H01B1/22 Primary

  the conductive material comprising metals or alloys · CPC title

• H01B1/12

  organic substances {(organic macromolecular compounds or compositions C08)} · CPC title

• H05K3/323

  by applying an anisotropic conductive adhesive layer over an array of pads · CPC title