JP2017002305A - プリプレグ、金属張積層板、プリント配線板 - Google Patents
プリプレグ、金属張積層板、プリント配線板 Download PDFInfo
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Abstract
Description
樹脂組成物及び織布基材で形成されたプリプレグであって、
前記樹脂組成物が、
(A)ナフタレン骨格を有するエポキシ樹脂及びナフタレン骨格を有するフェノール性硬化剤の少なくとも一方と、
(B)式(1)、式(2)及び式(3)のうちの少なくとも式(2)及び式(3)で表される構造を有し、重量平均分子量が20万〜85万である高分子量体と、
(C)無機充填材と
を含有する。
WC:単分子層の形成に必要な前記シランカップリング剤の量(g)
WF:前記無機充填材の添加量(g)
SF:前記無機充填材の比表面積(m2/g)
SC:前記シランカップリング剤の最小被覆面積(m2/g)
前記樹脂組成物4は、硬化促進剤を含有してもよい。前記硬化促進剤としては、例えば、イミダゾール類及びその誘導体、有機リン系化合物、オクタン酸亜鉛等の金属石鹸類、第二級アミン類、第三級アミン類、第四級アンモニウム塩を挙げることができる。
上記のようにして得られる引張り伸び率が5%以上であることによって、パッケージの反りをさらに低減することができる。
(A)成分
(A−1)ナフタレン型エポキシ樹脂(DIC株式会社製「HP−9500」)
(A−2)ナフタレン型フェノール性硬化剤(DIC株式会社製「HPC−9500」)
(B)成分
(B−1)エポキシ変性アクリル樹脂(新中村化学工業株式会社製「KV−8161」)
これは、前記式(1)、前記式(2)及び前記式(3)で表される構造(R1は水素原子又はメチル基、R2はメチル基、エチル基、ブチル基又はグリシジル基、R3は水素原子又はメチル基、R4は−COOCH2Ph)を有し、炭素原子間に不飽和結合を有せず、重量平均分子量が30万、エポキシ価が0.21eq/kgである。
これは、前記式(1)、前記式(2)及び前記式(3)で表される構造(R1は水素原子又はメチル基、R2はメチル基、エチル基、ブチル基又はグリシジル基、R3は水素原子又はメチル基、R4は−COOCH2Ph)を有し、炭素原子間に不飽和結合を有せず、重量平均分子量が50万、エポキシ価が0.21eq/kgである。
これは、前記式(1)及び前記式(2)で表される構造(R1は水素原子又はメチル基、R2はメチル基、エチル基又はブチル基)を有し、炭素原子間に不飽和結合を有せず、重量平均分子量が50万、エポキシ価が0.21eq/kgである。
(C−1)HTMS表面処理シリカ
これは、ヘキシルトリメトキシシラン(「HTMS」と略記)で表面処理された球状シリカ(株式会社アドマテックス製「SC2500−GFL」)である。
これは、3−イソシアネートプロピルトリエトキシシラン(「IPTES」と略記)で表面処理された球状シリカ(株式会社アドマテックス製「SC2500−GNO」)である。
(その他)
硬化促進剤(イミダゾールである四国化成工業株式会社製「2E4MZ」)
織布基材(ガラスクロスである日東紡績株式会社製「WEA116E」、厚み88μm)
(プリプレグ)
(A)成分、(B)成分、(C)成分、硬化促進剤を表1に示す配合量(質量部)で配合し、さらに溶剤(メチルエチルケトン)で希釈することによって樹脂組成物のワニスを調製した。実施例1〜4では(A)成分と(B)成分とは相溶しないで相分離している。
プリプレグを2枚重ね、この両面に金属箔として銅箔(厚み12μm)を積層して、真空条件下、2.94MPa(30kgf/cm2)で加圧しながら、220℃で60分間加熱して成形することによって、金属張積層板として銅張積層板(CCL)を製造した。この金属張積層板の絶縁層の厚みは200μmであった。
以下の物性評価を行い、その結果を表1に示す。
プリプレグを1枚用い、これを硬化状態とし、さらに50mm×5mmの大きさに切断して試料を作製した。この試料の損失正接(tanδ)は、動的粘弾性測定装置(エスアイアイ・ナノテクノロジー株式会社製「DMS6100」)を用いて、5℃/分の条件で昇温することにより測定した。損失正接(tanδ)が最大となるときの温度をガラス転移温度(Tg)とした。
プリプレグを8枚重ねて加熱加圧成形して硬化状態の試料を作製した。この試料の25℃における弾性率を動的粘弾性測定装置(エスアイアイ・ナノテクノロジー株式会社製「DMS6100」)を用いて測定した。
プリプレグを1枚用い、これを硬化状態として試料を作製した。この試料の樹脂組成物の硬化物のガラス転移温度(Tg)未満の温度において、試料の織布基材の横糸と平行な方向の熱膨張率(CTE)をJIS C 6481に従ってTMA法(Thermal mechanical analysis method)により測定した。測定には、熱機械分析装置(エスアイアイ・ナノテクノロジー株式会社製「TMA6100」)を用いた。
プリプレグを1枚用い、これを硬化状態としたものを試料とした。引張り伸び率の測定は、次のような引張り試験により行った。まず、引張り試験前に縦糸又は横糸に対して斜め45°方向における試料の長さ(L0)を測定した。このとき試料の幅は5mmに調整しておいた。次に引張り試験機(株式会社島津製作所製「オートグラフAGS−X」)を用いて、速度5mm/分で縦糸又は横糸に対して斜め45°方向に試料を引張り、この試料が破断する直前の長さ(L)を測定した。そして、次の式によって引張り伸び率を算出した。
(引張り強度)
プリプレグを1枚用い、これを硬化状態としたものを試料とした。引張り強度の測定は、次のような引張り試験により行った。試料の幅を5mmとし、つかみ間距離60mmをとして引張り試験機(株式会社島津製作所製「オートグラフAGS−X」)にセットした。その後、速度5mm/分で縦糸又は横糸に対して斜め45°方向に試料を引張り、この試料が破断したときの強度を引張り強度として測定した。
金属張積層板の表面の金属箔をエッチングにより除去し、正方形状に切断して試験片(大きさ5cm×5cm)を得た。前処理としてこの試験片を100℃のオーブンに1時間入れて乾燥させた。その後、121℃、湿度100%、2気圧(202.7kPa)の条件で1時間、2時間、4時間吸湿させた。このように吸湿時間の異なる3種の試験片を260℃のはんだ槽に20秒間浸漬させた。そして、はんだ槽から取り出した試験片に膨れが発生しているか目視により確認した。表1中では、試験片に膨れが発生しなかったものを「◎」、試験片に1mm以下の膨れが発生したものを「○」、試験片に5mm以下の膨れが発生したものを「△」、試験片に5mmを超える膨れが発生したものを「×」として示す。
金属張積層板の表面の金属箔のピール強度(引きはがし強さ又は銅箔密着強度)をJIS C 6481に準拠して測定した。このとき、幅20mm、長さ100mmの大きさの金属張積層板を試験片として用い、この試験片上に幅10mm、長さ100mmの大きさのパターンをエッチングにより形成した。このパターンを引張り試験機(株式会社島津製作所製「オートグラフAGS−X」)を用いて、速度50mm/分で引きはがし、そのときの引きはがし強さ(kgf/cm)をピール強度として測定した。
まずフリップチップ(FC)を基板に補強材(パナソニック株式会社製「HCV5313HS」)で接着して実装することによって、パッケージ反り量を測定するための簡易的なFC実装パッケージ(大きさ16mm×16mm)を製造した。ここで、前記FCとしては、15.06mm×15.06mm×0.1mmの大きさのSiチップに4356個のはんだボール(高さ80μm)を搭載したものを用いた。前記基板としては、前記金属張積層板の金属箔を除去したものを用いた。
2 金属張積層板
3 プリント配線板
4 樹脂組成物
5 織布基材
6 金属箔
7 導体パターン
51 縦糸
52 横糸
Claims (5)
- 硬化状態において、損失弾性率と貯蔵弾性率の比が60℃以下の温度域と200℃以上の温度域において0.05以上である
請求項1に記載のプリプレグ。 - 硬化状態において、前記織布基材の縦糸又は横糸に対して斜め45°方向における引張り伸び率が5%以上である
請求項1又は2に記載のプリプレグ。 - 請求項1乃至3のいずれか一項に記載のプリプレグに金属箔を積層して形成されている
金属張積層板。 - 請求項4に記載の金属張積層板の前記金属箔の一部を除去して導体パターンを設けて形成されている
プリント配線板。
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KR20200059296A (ko) * | 2017-12-29 | 2020-05-28 | 셍기 테크놀로지 코. 엘티디. | 수지 조성물, 프리프레그, 적층판 및 금속박적층판 |
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