JP7442533B2 - 半導体パッケージ用非導電性接着フィルム及びこれを用いる半導体パッケージの製造方法 - Google Patents
半導体パッケージ用非導電性接着フィルム及びこれを用いる半導体パッケージの製造方法 Download PDFInfo
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- JP7442533B2 JP7442533B2 JP2021537929A JP2021537929A JP7442533B2 JP 7442533 B2 JP7442533 B2 JP 7442533B2 JP 2021537929 A JP2021537929 A JP 2021537929A JP 2021537929 A JP2021537929 A JP 2021537929A JP 7442533 B2 JP7442533 B2 JP 7442533B2
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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Description
Claims (15)
- 基材;及び
前記基材の一面に配置される接着層;
を含み、
前記接着層は、(a)液状エポキシ樹脂、及び次の式1で示されるエポキシ基含有フェノキシ樹脂を含む互いに異なる2種以上のエポキシ樹脂、(b)硬化剤、(c)次の式2で示される化合物及び次の式3で示される化合物からなる群から選択される1種以上の硬化促進剤、及び(d)ナノシリカを含む接着用樹脂組成物から形成されたものである、半導体パッケージ用非導電性接着フィルム:
(前記式1において、
a及びbは、それぞれ1~4の整数であり、
複数のR1及び複数のR2は、互いに同一又は異なり、それぞれ独立に、水素、ハロゲン、C1~C10のアルキル基、C3~C20のシクロアルキル基、C5~C20のアリール基、及びニトロ基からなる群から選択され、
R3~R8は、互いに同一又は異なり、それぞれ独立に、水素、又はヒドロキシ基であり、但し、R3~R8のうちの少なくとも1つがヒドロキシ基であり、
X1は、単結合であるか、又はC1~C10のアルキレン基であり、
Y1及びY2は、互いに同一又は異なり、それぞれ独立に、水素、ヒドロキシ、又はエポキシ基であり、但し、Y1及びY2のうちの少なくともいずれか1つは、エポキシ基であり、
nは、30~400の整数である。)
(前記式2及び式3において、
n1は、1又は2であり、
n2は、それぞれ0~2であり、
X1~X6は、互いに同一又は異なり、それぞれ独立に、N、又はC(R1)であり、但し、X1~X6のうちの2つが、Nであり、
Y1~Y6は、互いに同一又は異なり、それぞれ独立に、N(R2)、又はC(R3)(R4)であり、但し、Y1~Y6のうちの2つが、N(R2)であり、
このとき、複数のC(R1)は、互いに同一又は異なり、複数のN(R2)は、互いに同一又は異なり、複数のC(R3)(R4)は、互いに同一又は異なり、
R1、R2、R3、及びR4は、それぞれ独立に、水素、重水素(D)、ハロゲン、シアノ基、ニトロ基、C1~C20のアルキル基、C2~C20のアルケニル基、及びC2~C20のアルキニル基からなる群から選択される。)。 - 前記接着層は、熱重量分析(TGA)によって250℃で1%以下の重量減少率を有する、請求項1に記載の半導体パッケージ用非導電性接着フィルム。
- 前記接着層は、160~200℃のオンセット温度(Onset Temperature)を有する、請求項1に記載の半導体パッケージ用接着フィルム。
- 前記接着用樹脂組成物は、当該樹脂組成物の総量に対して、
40~80重量%のエポキシ樹脂;
5~20重量%の硬化剤;
0.01~1重量%の硬化促進剤;及び、
残部のナノシリカ;
を含む、請求項1に記載の半導体パッケージ用非導電性接着フィルム。 - 前記硬化剤は、脂環族酸無水物、芳香族アミン系硬化剤、脂肪族アミン系硬化剤、フェノール系硬化剤、及び潜在性硬化剤からなる群から選択される1種以上を含む、請求項1に記載の半導体パッケージ用非導電性接着フィルム。
- 前記ナノシリカの平均粒径は、10~100nmの範囲である、請求項1に記載の半導体パッケージ用非導電性接着フィルム。
- (S100)基板上に、請求項1~6のうちのいずれか1項に記載の非導電性接着フィルムの接着層と、少なくとも一面に接続端子が配置されたTSV構造の半導体素子とを順次交互に積層して、複数層の積層体を形成するステップ;
(S200)前記積層体を熱圧着し、前記積層体中の各半導体素子の接続端子を互いに接合するステップ;及び、
(S300)前記熱圧着された積層体中の接着層を硬化させるステップ;
を含む、半導体パッケージの製造方法。 - 前記ステップ(S100)において、前記半導体素子を20~100Nの圧力で前記接着層上に加圧積層させる、請求項7に記載の半導体パッケージの製造方法。
- 前記半導体素子は、50~100℃の温度で加圧積層される、請求項8に記載の半導体パッケージの製造方法。
- 前記ステップ(S200)は、200~300℃の温度、及び50~200Nの圧力下で行われる、請求項7に記載の半導体パッケージの製造方法。
- 前記ステップ(S300)において、前記接着層を160~200℃の温度で硬化させる、請求項7に記載の半導体パッケージの製造方法。
- (a)液状エポキシ樹脂、及び次の式1で示されるエポキシ基含有フェノキシ樹脂を含む互いに異なる2種以上のエポキシ樹脂、
(b)硬化剤、
(c)次の式2で示される化合物及び次の式3で示される化合物からなる群から選択される1種以上の硬化促進剤、及び
(d)ナノシリカ
を含む、接着用樹脂組成物:
(前記式1において、
a及びbは、それぞれ1~4の整数であり、
複数のR1及び複数のR2は、互いに同一又は異なり、それぞれ独立に、水素、ハロゲン、C1~C10のアルキル基、C3~C20のシクロアルキル基、C5~C20のアリール基、及びニトロ基からなる群から選択され、
R3~R8は、互いに同一又は異なり、それぞれ独立に、水素、又はヒドロキシ基であり、但し、R3~R8のうちの少なくとも1つがヒドロキシ基であり、
X1は、単結合であるか、又はC1~C10のアルキレン基であり、
Y1及びY2は、互いに同一又は異なり、それぞれ独立に、水素、ヒドロキシ、又はエポキシ基であり、但し、Y1及びY2のうちの少なくともいずれか1つは、エポキシ基であり、
nは、30~400の整数である。)
(前記式2及び式3において、
n1は、1又は2であり、
n2は、それぞれ0~2であり、
X1~X6は、互いに同一又は異なり、それぞれ独立に、N、又はC(R1)であり、但し、X1~X6のうちの2つが、Nであり、
Y1~Y6は、互いに同一又は異なり、それぞれ独立に、N(R2)、又はC(R3)(R4)であり、但し、Y1~Y6のうちの2つが、N(R2)であり、
このとき、複数のC(R1)は、互いに同一又は異なり、複数のN(R2)は、互いに同一又は異なり、複数のC(R3)(R4)は、互いに同一又は異なり、
R1、R2、R3、及びR4は、それぞれ独立に、水素、重水素(D)、ハロゲン、シアノ基、ニトロ基、C1~C20のアルキル基、C2~C20のアルケニル基、及びC2~C20のアルキニル基からなる群から選択される。)。 - 前記接着用樹脂組成物は、当該樹脂組成物の総量に対して、
40~80重量%のエポキシ樹脂;
5~20重量%の硬化剤;
0.01~1重量%の硬化促進剤;及び、
残部のナノシリカ;
を含む、請求項12に記載の接着用樹脂組成物。 - 前記硬化剤は、脂環族酸無水物、芳香族アミン系硬化剤、脂肪族アミン系硬化剤、フェノール系硬化剤、及び潜在性硬化剤からなる群から選択される1種以上を含む、請求項12に記載の接着用樹脂組成物。
- 前記ナノシリカの平均粒径は、10~100nmの範囲である、請求項12に記載の接着用樹脂組成物。
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