JP6971362B1 - 導電性接着剤組成物 - Google Patents
導電性接着剤組成物 Download PDFInfo
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- JP6971362B1 JP6971362B1 JP2020123303A JP2020123303A JP6971362B1 JP 6971362 B1 JP6971362 B1 JP 6971362B1 JP 2020123303 A JP2020123303 A JP 2020123303A JP 2020123303 A JP2020123303 A JP 2020123303A JP 6971362 B1 JP6971362 B1 JP 6971362B1
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- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 description 1
- KYIKRXIYLAGAKQ-UHFFFAOYSA-N abcn Chemical compound C1CCCCC1(C#N)N=NC1(C#N)CCCCC1 KYIKRXIYLAGAKQ-UHFFFAOYSA-N 0.000 description 1
- LVZGQWKTUCVPBQ-UHFFFAOYSA-N acetic acid;trifluoroborane Chemical compound CC(O)=O.FB(F)F LVZGQWKTUCVPBQ-UHFFFAOYSA-N 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 1
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- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- JWKNCJFGBOQAQL-UHFFFAOYSA-N butyl dodecaneperoxoate Chemical compound CCCCCCCCCCCC(=O)OOCCCC JWKNCJFGBOQAQL-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 229940125782 compound 2 Drugs 0.000 description 1
- 229940126214 compound 3 Drugs 0.000 description 1
- 239000007771 core particle Substances 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 1
- NAPSCFZYZVSQHF-UHFFFAOYSA-N dimantine Chemical compound CCCCCCCCCCCCCCCCCCN(C)C NAPSCFZYZVSQHF-UHFFFAOYSA-N 0.000 description 1
- 229950010007 dimantine Drugs 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- 229920005645 diorganopolysiloxane polymer Polymers 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- JDVIRCVIXCMTPU-UHFFFAOYSA-N ethanamine;trifluoroborane Chemical compound CCN.FB(F)F JDVIRCVIXCMTPU-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- ZQMHJBXHRFJKOT-UHFFFAOYSA-N methyl 2-[(1-methoxy-2-methyl-1-oxopropan-2-yl)diazenyl]-2-methylpropanoate Chemical compound COC(=O)C(C)(C)N=NC(C)(C)C(=O)OC ZQMHJBXHRFJKOT-UHFFFAOYSA-N 0.000 description 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 1
- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 description 1
- KYCGURZGBKFEQB-UHFFFAOYSA-N n',n'-dibutylpropane-1,3-diamine Chemical compound CCCCN(CCCC)CCCN KYCGURZGBKFEQB-UHFFFAOYSA-N 0.000 description 1
- YWWNNLPSZSEZNZ-UHFFFAOYSA-N n,n-dimethyldecan-1-amine Chemical compound CCCCCCCCCCN(C)C YWWNNLPSZSEZNZ-UHFFFAOYSA-N 0.000 description 1
- YWFWDNVOPHGWMX-UHFFFAOYSA-N n,n-dimethyldodecan-1-amine Chemical compound CCCCCCCCCCCCN(C)C YWFWDNVOPHGWMX-UHFFFAOYSA-N 0.000 description 1
- NHLUVTZJQOJKCC-UHFFFAOYSA-N n,n-dimethylhexadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCN(C)C NHLUVTZJQOJKCC-UHFFFAOYSA-N 0.000 description 1
- UQKAOOAFEFCDGT-UHFFFAOYSA-N n,n-dimethyloctan-1-amine Chemical compound CCCCCCCCN(C)C UQKAOOAFEFCDGT-UHFFFAOYSA-N 0.000 description 1
- SFBHPFQSSDCYSL-UHFFFAOYSA-N n,n-dimethyltetradecan-1-amine Chemical compound CCCCCCCCCCCCCCN(C)C SFBHPFQSSDCYSL-UHFFFAOYSA-N 0.000 description 1
- QYZFTMMPKCOTAN-UHFFFAOYSA-N n-[2-(2-hydroxyethylamino)ethyl]-2-[[1-[2-(2-hydroxyethylamino)ethylamino]-2-methyl-1-oxopropan-2-yl]diazenyl]-2-methylpropanamide Chemical compound OCCNCCNC(=O)C(C)(C)N=NC(C)(C)C(=O)NCCNCCO QYZFTMMPKCOTAN-UHFFFAOYSA-N 0.000 description 1
- ATBNMWWDBWBAHM-UHFFFAOYSA-N n-decyl-n-methyldecan-1-amine Chemical compound CCCCCCCCCCN(C)CCCCCCCCCC ATBNMWWDBWBAHM-UHFFFAOYSA-N 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- AFEQENGXSMURHA-UHFFFAOYSA-N oxiran-2-ylmethanamine Chemical compound NCC1CO1 AFEQENGXSMURHA-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- DBIWHDFLQHGOCS-UHFFFAOYSA-N piperidine;trifluoroborane Chemical compound FB(F)F.C1CCNCC1 DBIWHDFLQHGOCS-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 1
- 229960001755 resorcinol Drugs 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- NMOALOSNPWTWRH-UHFFFAOYSA-N tert-butyl 7,7-dimethyloctaneperoxoate Chemical compound CC(C)(C)CCCCCC(=O)OOC(C)(C)C NMOALOSNPWTWRH-UHFFFAOYSA-N 0.000 description 1
- SWAXTRYEYUTSAP-UHFFFAOYSA-N tert-butyl ethaneperoxoate Chemical compound CC(=O)OOC(C)(C)C SWAXTRYEYUTSAP-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
Description
本開示に係る導電性接着剤組成物が含有する(A)導電性粉末は、導電性を有する粉末(粒子)であれば特に限定されない。その材質も特に限定されないが、良好な導電性を実現する観点から相対的に低抵抗の導電性材料を挙げることができる。具体的には、例えば、金、銀、銅、およびこれらの合金を好ましく用いることができる。これらの中でも特に銀を含有する粉末を好適に用いることができる。
本開示に係る導電性接着剤組成物が含有する(B)硬化性成分は、硬化によって(A)導電性粉末同士を電気的に接続可能にするとともに被着体に接着する硬化性バインダーとして機能するものであればよい。代表的には、熱硬化性の樹脂を挙げることができる。一般的な熱硬化性の樹脂としては、例えば、アクリル樹脂、エポキシ樹脂、シリコーン樹脂、フェノール樹脂、ポリエステル樹脂、ポリウレタン樹脂、メラミン樹脂、ポリイミド樹脂等が挙げられる。これらの中でも、特に、アクリル樹脂、エポキシ樹脂、シリコーン樹脂のいずれかの樹脂を挙げることができる。なお、樹脂の種類によっては、硬化前の(B)硬化性成分は、ポリマーではなくモノマーまたはプレポリマーである場合もある。そのため、本開示においては、(B)硬化性成分は、硬化性の樹脂だけでなく、硬化することで樹脂となる硬化性組成物も含む。
本開示に係る導電性接着剤組成物は、前述した(A)導電性粉末および(B)硬化性成分を基本成分として含有し、さらに(C)スペーサー粒子を含有する。この(C)スペーサー粒子は、(A)導電性粉末よりも平均粒径(メジアン径)が大きいものである。
本開示に係る導電性接着剤組成物の製造方法は特に限定されず、導電性接着剤組成物の分野で公知の方法を好適に用いることができる。代表的な一例としては、前述した各成分を所定の配合割合(質量基準)で配合し、公知の混練装置を用いてペースト化する方法が挙げられる。混練装置としては、例えば、3本ロールミル等を挙げることができる。
(1)メジアン径
(A)導電性状粉末または(C)スペーサー粒子のメジアン径はレーザー回折法により評価した。(A)導電性状粉末または(C)スペーサー粒子の試料0.3gを50mlビーカーに秤量し、イソプロピルアルコール30mlを加えた後、超音波洗浄器(アズワン株式会社製USM−1)により5分間処理することで分散させ、粒度分布測定装置(日機装株式会社製マイクロトラックMT3300EXII)を用いて、メジアン径を測定して評価した。
前記の方法で得られた(C)スペーサー粒子のメジアン径を用いて、当該(C)スペーサー粒子の粒径の標準偏差をメジアン径で除算することにより、CV値(Coefficient of Variation)を算出した。
実施例または比較例の導電性接着剤組成物を、直径60μm、高さ200μmになるようにディスペンサーを用いてアルミナ基板上に塗布し、この上から重さ5gのガラス基板を積層した。この基板積層体を、ホットプレートを用いて150℃で30秒間加熱し、導電性接着剤組成物を硬化させた(硬化接着層の形成)。これにより、貼り付け後の形状評価用の試験片を得た。
実施例または比較例の導電性接着剤組成物を、図1に示すように、印刷機を用いてアルミナ基板12上に印刷パターン11を印刷した。この印刷パターン11は、1つの配線パターン11aと5つのパッドパターン11dとで構成されている。配線パターン11aは、両端にそれぞれ矩形状の端子11bを有し配線部11cがつづら折り状となっており、配線部11cのアスペクト比は75である。5つのパッドパターン11dは、この配線パターン11aに隣接して一列に並んで配置され、それぞれが2mm×2mmの正方形状となっている。
以下の実施例または比較例では、(A)導電性粉末として、下記表1に示す3種類のうち2種の粉末を用いた。なお、下記表1並びに表2および表3の略号は、実施例または比較例の成分を表4〜表8において示すために用いている。
(実施例1)
表4に示すように、(A)導電性粉末として、表1に示す球状の銀粉1(略号A1)およびフレーク状の銀粉2(略号A2)を用い、(B)硬化性成分として、表2に示す樹脂1(略号B1)、樹脂2(略号B2)および樹脂3(略号B3)を用い、これらを表4に示す配合量(質量部)となるよう配合し、これら各成分を3本ロールミルで混練した。混練後、(C)スペーサー粒子として、表3に示すスペーサー1(略号C01)を用い、このスペーサー1を表4に示す配合量(質量部)で配合し、自転公転式撹拌機で混合した。これにより、実施例1の導電性接着剤組成物を調製(製造)した。
表4に示すように、(C)スペーサー粒子の種類(表3参照)または配合量を変更した以外は、実施例1と同様にして、実施例2〜4の導電性接着剤組成物を調製(製造)した。
(実施例9〜13)
表6に示すように、(A)導電性粉末の種類(表1参照)または配合量、(B)硬化性成分の配合量、並びに(C)スペーサー粒子の種類(表3参照)または配合量を変更した以外は、実施例1と同様にして、実施例9〜13の導電性接着剤組成物を調製(製造)した。
(比較例1,2)
表7に示すように、(C)スペーサー粒子の配合量を過剰(比較例1)または過少(比較例2)となるように変更した以外は、実施例2((C)スペーサー粒子がスペーサー2(略号C02)の実施例)と同様にして、比較例1または比較例2の導電性接着剤組成物を調製(製造)した。
表7に示すように、(C)スペーサー粒子として、表3に示すスペーサー7(略号C07)を用いて表7に示す配合量で配合するか(比較例3)、表3に示すスペーサー8(略号C08)を用いて表7に示す配合量で配合した(比較例4)以外は、実施例1と同様にして、比較例3または比較例4の導電性接着剤組成物を調製(製造)した。
(比較例5,6)
表8に示すように、(C)スペーサー粒子として、表3に示すスペーサー9(略号C09)を用いて表8に示す配合量で配合するか(比較例5)、表3に示すスペーサー10(略号C10)を用いて表8に示す配合量で配合した(比較例6)以外は、実施例1と同様にして、比較例5または比較例6の導電性接着剤組成物を調製(製造)した。
表8に示すように、(C)スペーサー粒子を用いないで(A)導電性粉末の配合量および(B)硬化性成分の配合量を変更した以外は、実施例1と同様にして、比較例7または比較例8の導電性接着剤組成物を調製(製造)した。
(実施例および比較例の対比)
実施例1〜13の結果と比較例7,8の結果の対比から明らかなように、本開示に係る導電性接着剤組成物であれば、(C)スペーサー粒子を適切に含有することにより、導電性を良好に保持しつつ良好な形状保持性(広がりにくく良好な厚みを実現できる)と良好な接着強度を実現することができる。
11a:配線パターン
11b:端子
11c:配線部
11d:パッドパターン
12:アルミナ基板
13:リベット
20:太陽電池モジュール
21:太陽電池セル
22:硬化接着層
30:太陽電池モジュール
31:太陽電池セル
32:インターコネクタ
Claims (5)
- 太陽電池モジュールを構成する太陽電池セルの接着に用いられ、
(A)導電性粉末および(B)硬化性成分を含有し、前記(A)導電性粉末を100質量部としたときに前記(B)硬化性成分の含有量が20質量部以上であり、
前記(A)導電性粉末が、はんだではない、銀を含有する粉末であるとともに、その形状が、球状粉またはフレーク状粉、もしくは、前記球状粉および前記フレーク状粉の組合せであり、
前記(B)硬化性成分が、アクリル樹脂、エポキシ樹脂、シリコーン樹脂のいずれかの樹脂、もしくは、硬化することでこれら樹脂となる硬化性組成物であり、
さらに、前記(A)導電性粉末よりも平均粒径(メジアン径)が大きい(C)スペーサー粒子を含有し、
前記(C)スペーサー粒子の材質は、ガラス、セラミックまたは樹脂であり、
前記(C)スペーサー粒子の平均粒径(メジアン径)が10〜60μmの範囲内であるとともに、前記(C)スペーサー粒子のCV値(Coefficient of Variation)が30%以下であり、
前記(A)導電性粉末および前記(B)硬化性成分の合計量を100質量部としたときに、前記(C)スペーサー粒子の含有量が0.01質量部以上30質量部以下であることを特徴とする、
導電性接着剤組成物。 - 前記(A)導電性粉末が、銀粉末、銀合金粉末、銀コート粉末の少なくともいずれかであることを特徴とする、
請求項1に記載の導電性接着剤組成物。 - 前記(C)スペーサー粒子は、その表面に金属材料が被覆されたものであることを特徴とする、
請求項1または2に記載の導電性接着剤組成物。 - 前記太陽電池セル上に印刷機またはディスペンサーにより塗布して用いられるものであることを特徴とする、
請求項1から3のいずれか1項に記載の導電性接着剤組成物。 - 前記太陽電池モジュールが、複数の前記太陽電池セルの長辺同士を部分的に順次重ねて傾斜配置する構成であり、前記太陽電池セルの前記長辺同士の接着に用いられることを特徴とする、
請求項1から4のいずれか1項に記載の導電性接着剤組成物。
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