JP4553553B2 - Adhesive tape for electronic devices - Google Patents

Adhesive tape for electronic devices Download PDF

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Publication number
JP4553553B2
JP4553553B2 JP2003012011A JP2003012011A JP4553553B2 JP 4553553 B2 JP4553553 B2 JP 4553553B2 JP 2003012011 A JP2003012011 A JP 2003012011A JP 2003012011 A JP2003012011 A JP 2003012011A JP 4553553 B2 JP4553553 B2 JP 4553553B2
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Prior art keywords
silicone
sensitive adhesive
adhesive tape
pressure
electronic devices
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JP2003012011A
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Japanese (ja)
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JP2004224857A (en
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崇二 須美
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Lintec Corp
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Lintec Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、電子デバイスの製造工程等で使用される粘着テープに関し、特に高温下の使用においても電子デバイスに悪影響を及ぼす揮発成分(アウトガス)の発生の少ない粘着テープに関するものである。
【0002】
【従来の技術】
粘着テープは電子デバイスの製造工程やその他の段階において広く使用されているが、特に、高温条件下で使用される、QFN(Quad Flat Non−lead)デバイス等のICチップの製造工程における樹脂封止の際の樹脂漏れ防止用テープ、高温高圧の電気絶縁テープ、プリント基板のソルダーコート時のマスキングテープ等の用途には、耐熱性の基材に粘着剤層を設けたものが使用されている。(例えば、特許文献1参照)
この耐熱性を有する粘着テープにおける粘着剤としては、耐熱性の点からはシリコーン系粘着剤が優れているが、シリコーン系粘着剤を使用した場合、シリコーンに由来する、揮発成分(アウトガス)が発生し、電子デバイスに悪影響を及ぼす事態、例えば、QFNデバイス製造工程におけるワイヤーボンド不良やモールド樹脂層間剥離不良が発生する恐れがあった。。
【0003】
【特許文献】
特開平11−354556号公報(第2頁)
【0004】
【発明が解決しようとする課題】
本発明はこのような状況下で、高温下の使用においても電子デバイスに悪影響を及ぼす揮発成分(アウトガス)の発生の少ない電子デバイス用粘着テープを提供することを目的とするものである。
【0005】
【課題を解決するための手段】
本発明者は、上記の課題を解決すべく鋭意検討した結果、耐熱性基材の表面に形成したシリコーン系粘着剤層に電子線照射をすることが極めて有効であることを見出した。本発明は、係る知見に基いて完成されたものである。
【0006】
即ち、本発明は、
(1)耐熱性基材の少なくとも片面に、ビニル基含有のシリコーンガム成分と、シリコーンレジン成分と、ヒドロシリル基を有するシリコーン架橋剤からなる付加反応型シリコーン系粘着剤層が形成され、且つ該シリコーン系粘着剤層に電子線が照射されてなることを特徴とする電子デバイス用粘着テープ、
(2)照射した電子線の線量が、1〜70Mradである上記(1)に記載の電子デバイス用粘着テープ、
(3)シリコーン系粘着剤が、更に白金触媒を含むものである上記(1)又は(2)に記載の電子デバイス用粘着テープ、
(4)耐熱性基材が、ポリイミドフィルムである上記(1)〜(3)の何れか一つに記載の電子デバイス用粘着テープ、及び
(5)電子デバイスの樹脂封止工程において使用される樹脂漏れ防止用テープである上記(1)〜(4)の何れか一つに記載の電子デバイス用粘着テープを提供するものである。
【0007】
本発明の粘着テープで使用する耐熱性基材は、耐熱性の樹脂からなり、該樹脂の融点は好ましくは180℃以上、さらに好ましくは260℃以上である。または該温度領域で融解せず、熱分解するものが好ましい。
このような耐熱性基材としては、具体的には、ポリエチレンテレフタレートフィルム、ポリエチレンナフタレートフィルム、ポリイミドフィルム、ポリエーテルイミドフィルム、ポリアラミドフィルム、ポリエーテルケトンフィルム、ポリエーテル・エーテルケトンフィルム、ポリフェニレンサルファイドフィルム、ポリ(4-メチルペンテン-1)フィルム等が用いられる。また、これらフィルムの積層体であってもよい。さらに、上記フィルムと、他のフィルムとの積層体であってもよい。
これらの中では、ポリイミドフィルムが、耐熱性及び寸法安定性が優れるため、特に好ましい。
耐熱性基材の膜厚は、その材質にもよるが、通常は5〜300μm程度であり、好ましくは10〜100μm程度である。
【0008】
本発明の粘着テープで使用するシリコーン系粘着剤は、電子線に対する受容性に優れるため付加反応型シリコーン粘着剤が好ましい。付加反応型シリコーン粘着剤は、通常、シリコーンレジン成分とビニル基含有のシリコーンガム成分との混合物からなる粘着主剤を、ヒドロシリル基(SiH基)を有するシリコーン架橋剤で架橋したものよりなる。
【0009】
シリコーンレジン成分は、オルガノクロルシランの加水分解反応後に脱水縮合反応を行なうことによって得られる網状構造のオルガノポリシロキサンである。
また、シリコーンガム成分は、直鎖構造を有するジオルガノポリシロキサンからなる。オルガノ基としては、レジン成分及びガム成分ともに、メチル基又はフェニル基からなり、エチル基、プロピル基、ブチル基等に置換されていても良い。
【0010】
付加反応型シリコーン粘着剤の場合、ビニル基とヒドロシリル基の付加反応が粘着剤の架橋に使用されている。通常、ビニル基はシリコーンガム成分のオルガノ基に一部置換されて導入されている。また、ヒドロシリル基は、シリコーンレジン成分とシリコーンガム成分からなる粘着主剤側には導入されず、ヒドロシリル基を有するシリコーン架橋剤として使用される。また、必要に応じ付加反応型シリコーン粘着剤には、反応促進のため白金触媒等の触媒が配合される。
なお、架橋剤及び/又は触媒は、塗工時に粘着主剤に配合するタイプでも良いし、触媒を使用する場合は、架橋剤が既に粘着主剤に配合されているタイプでも良い。
【0011】
シリコーン系粘着剤層は、シリコーン系粘着剤を耐熱性基材の表面に、例えばロールコート、グラビアコート、エアナイフコート、ホットメルトコート、カーテンフローコート等の方法で塗工することにより形成される。シリコーン系粘着剤層の厚さ(乾燥後)は、1〜50μm程度であり、好ましくは5〜20μm程度である。厚さが1μm未満の場合には、得られる粘着テープの接着力が十分ではない恐れがあり、一方50μmを超えても、粘着性能の向上が無く不経済であるばかりでなく、粘着テープの貼合時のはみ出し、剥離時の凝集破壊の原因ともなる。
シリコーン系粘着剤層は、用途に応じて、耐熱性基材の片面又は両面に形成する。
【0012】
耐熱性基材の片面又は両面に形成したシリコーン系粘着剤層には、電子線を照射する。
シリコーン系粘着剤が架橋剤及び触媒を含まないものである場合は、電子線は、耐熱性基材の少なくとも片面にシリコーン系粘着剤を塗布・乾燥することにより形成されたシリコーン系粘着剤層に照射する。シリコーン系粘着剤は、この電子線照射により、硬化する。
一方、シリコーン系粘着剤が架橋剤、又は架橋剤とともに触媒を含むものである場合は、電子線は、耐熱性基材の少なくとも片面にシリコーン系粘着剤を塗布・加熱して硬化させることにより形成されたシリコーン系粘着剤層に照射する。
【0013】
電子線の照射には、一般的には、130〜300kV、好ましくは150〜250kV程度のエネルギーを持つ電子線加速器が利用される。照射される電子線の線量は、1〜70Mradが好ましく、特に2〜20Mradが好ましい。
照射される電子線の線量が少なすぎると、本発明の効果が十分に得られない恐れがあり、逆に照射される電子線の線量が多すぎると、粘着テープが収縮したり、粘着剤層の凝集力を低下させる恐れがある。
また、電子線の照射は、酸素による反応阻害を防止するため窒素雰囲気下で行なうのが好ましい。
【0014】
シリコーン系粘着剤層に電子線を照射することにより、高温下においても電子デバイスに悪影響を及ぼす揮発成分の発生が減少する。この理由については明らかではないが、たとえば電子線の照射により揮発性の低分子量シロキサンが化学反応して減少したか、ガム成分やレジン成分のポリマーがさらに架橋して低分子量成分の運動を抑制したものと思われる。
【0015】
本発明の粘着テープは、電子デバイスの製造工程やその他の段階における、特に、高温条件下で使用される、QFN(Quad Flat Non-lead)デバイス製造工程における樹脂封止の際の樹脂漏れ防止用テープ、高温高圧の電気絶縁テープ、プリント基板のソルダーコート時のマスキングテープ等の用途に適している。
例えば、QFNデバイス製造工程においては、リードフレームに樹脂漏れ防止用の粘着テープを貼付し、この粘着テープ付きリードフレームに半導体チップをボンディングし、更にワイヤーボンディングを行なった後、半導体チップを金型により樹脂封止し、しかる後に、粘着テープを剥離する。樹脂封止体には、必要に応じてはんだメッキ等を施した後、チップ体毎に切断分離することにより複数のQFNを得ることができる。
【0016】
次に、本発明を実施例により、さらに詳しく説明するが、本発明は、これらの例によってなんら制限されるものではない。
なお、P&T/GC/MS分析法(パージアンドトラップ ガスクロマトグラフ・マススペクトル分析法)によるシロキサン系の発生ガス量の定量は、次の装置・条件により行なった。
P&T
装置:日本分析工業社製、商品名:JHS−100A
試料面積:1.0cm2
パージ:250℃で10分間 ヘリウム50ml/分
トラップ:−80℃ 吸着剤:テナックス
GC/MS
装置:パーキンエルマー社製、商品名:ターボマス
カラム:HP−5 30m×0.25mm×0.25mm ヘリウム70ml/分
オーブン:50℃で5分間加熱したのち、10℃/分の速度で300℃まで昇温し、300℃に10分間保持した。
MS範囲:29〜500m/z
定量標準:ドデカメチルシクロヘキサシロキサン(D6と記す。)
【0017】
実施例1
耐熱性基材である厚さ25μmのポリイミドフィルム(東レデュポン社製、商品名:カプトン100H)の片面に、付加型シリコン粘着剤(東レダウコーニング社製、商品名:SD−4587L、シリコ−ンガム、シリコーンレジン及びSiHシリコン架橋剤を含む)100重量部に白金触媒(東レダウコーニング社製、商品名:SRX212)0.6重量部を配合したものを、乾燥後の厚さが5μmとなる量塗工し、150℃で1分間加熱して、硬化した粘着剤層が形成されたテープを得た。
このテープに、加速電圧200KV、ビーム電流20mA、線量5Mrad、窒素気流下の条件で、電子線を照射した。この粘着テープの粘着力は、0.75N/25mmであった。
電子線照射後の粘着テープについて、P&T/GC/MS法にてシロキサン系の発生ガス量を定量した結果、総揮発成分量(D6換算値、検出の範囲はD15をピークにD10〜D18相当の範囲である、以下同じ)は5.6μg/m2 であった。
【0018】
実施例2
付加型シリコン粘着剤に白金触媒を配合せず、従って、粘着剤を塗工した後は、通常の乾燥のみを行なった粘着剤層に電子線を照射し、硬化させた以外は、実施例1と同様にして電子線照射済の粘着テープを得た。この粘着テープの粘着力は、0.70N/25mmであった。
この粘着テープについて、P&T/GC/MS法にてシロキサン系の発生ガス量を定量した結果、総揮発成分量は7.3μg/m2 であった。
【0019】
実施例3
粘着剤を付加型シリコン粘着剤(東レダウコーニング社製、商品名:SD−4587Fc、シリコ−ンガム及びシリコーンレジンを含む)に代え、且つ白金触媒を配合しなかった以外は、実施例1と同様にして電子線照射済の粘着テープを得た。この粘着テープの粘着力は、0.65N/25mmであった。
この粘着テープについて、P&T/GC/MS法にてシロキサン系の発生ガス量を定量した結果、総揮発成分量は6.5μg/m2 であった。
【0020】
比較例1
実施例1における、電子線を照射する前の粘着テープについて、P&T/GC/MS法にてシロキサン系の発生ガス量を定量した結果、総揮発成分量は10.0μg/m2 であった。なお、この粘着テープの粘着力は、0.80N/25mmであった。
【0021】
【発明の効果】
本発明の粘着テープは、シリコーン系粘着剤テープが本来有する粘着力を何ら損なうことなく有すると共に、シリコーンに由来する、揮発成分(アウトガス)の発生が非常に少ないものであり、電子デバイスに関連する、特に高温環境での各種の用途に極めて適したものである。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an adhesive tape used in an electronic device manufacturing process and the like, and more particularly to an adhesive tape that generates less volatile components (outgas) that adversely affect an electronic device even when used at high temperatures.
[0002]
[Prior art]
Adhesive tapes are widely used in the manufacturing process of electronic devices and other stages, but especially resin sealing in the manufacturing process of IC chips such as QFN (Quad Flat Non-lead) devices used under high temperature conditions In applications such as a resin leakage prevention tape, a high-temperature and high-pressure electrical insulating tape, and a masking tape for solder coating of printed circuit boards, a heat-resistant base material provided with an adhesive layer is used. (For example, see Patent Document 1)
As an adhesive in this heat-resistant adhesive tape, a silicone-based adhesive is superior from the viewpoint of heat resistance, but when a silicone-based adhesive is used, a volatile component (outgas) derived from silicone is generated. However, there is a possibility that a situation that adversely affects the electronic device, for example, a wire bond defect or a mold resin delamination defect in the QFN device manufacturing process may occur. .
[0003]
[Patent Literature]
JP 11-354556 A (2nd page)
[0004]
[Problems to be solved by the invention]
Under such circumstances, an object of the present invention is to provide an adhesive tape for an electronic device that generates less volatile components (outgas) that adversely affect the electronic device even when used at high temperatures.
[0005]
[Means for Solving the Problems]
As a result of intensive studies to solve the above problems, the present inventor has found that it is extremely effective to irradiate the silicone pressure-sensitive adhesive layer formed on the surface of the heat-resistant substrate with an electron beam. The present invention has been completed based on such knowledge.
[0006]
That is, the present invention
(1) An addition-reaction type silicone pressure-sensitive adhesive layer comprising a silicone gum component containing a vinyl group, a silicone resin component, and a silicone crosslinking agent having a hydrosilyl group is formed on at least one surface of a heat-resistant substrate, and the silicone An adhesive tape for electronic devices, characterized in that an electron beam is irradiated to the adhesive layer
(2) The pressure-sensitive adhesive tape for electronic devices according to (1), wherein the dose of the irradiated electron beam is 1 to 70 Mrad,
(3) The adhesive tape for electronic devices according to the above (1) or (2), wherein the silicone-based adhesive further contains a platinum catalyst,
(4) The heat-resistant substrate is a polyimide film, and is used in the electronic device pressure-sensitive adhesive tape according to any one of (1) to (3), and (5) an electronic device resin sealing step. The pressure-sensitive adhesive tape for electronic devices according to any one of the above (1) to (4), which is a resin leakage prevention tape.
[0007]
The heat-resistant substrate used in the pressure-sensitive adhesive tape of the present invention is made of a heat-resistant resin, and the melting point of the resin is preferably 180 ° C. or higher, more preferably 260 ° C. or higher. Or what does not melt | dissolve in this temperature range but thermally decomposes is preferable.
Specific examples of such heat resistant substrates include polyethylene terephthalate film, polyethylene naphthalate film, polyimide film, polyetherimide film, polyaramid film, polyetherketone film, polyetheretherketone film, polyphenylene sulfide. A film, a poly (4-methylpentene-1) film, or the like is used. Moreover, the laminated body of these films may be sufficient. Furthermore, the laminated body of the said film and another film may be sufficient.
In these, since a polyimide film is excellent in heat resistance and dimensional stability, it is especially preferable.
Although the film thickness of a heat resistant base material is based also on the material, it is about 5-300 micrometers normally, Preferably it is about 10-100 micrometers.
[0008]
The silicone-based pressure-sensitive adhesive used in the pressure-sensitive adhesive tape of the present invention is preferably an addition reaction type silicone pressure-sensitive adhesive because of its excellent acceptability to electron beams. The addition-reaction type silicone pressure-sensitive adhesive is usually formed by crosslinking a pressure-sensitive adhesive main agent comprising a mixture of a silicone resin component and a vinyl group-containing silicone gum component with a silicone crosslinking agent having a hydrosilyl group (SiH group).
[0009]
The silicone resin component is a network-structured organopolysiloxane obtained by performing a dehydration condensation reaction after the hydrolysis reaction of organochlorosilane.
Moreover, a silicone gum component consists of diorganopolysiloxane which has a linear structure. As the organo group, both the resin component and the gum component are composed of a methyl group or a phenyl group, and may be substituted with an ethyl group, a propyl group, a butyl group, or the like.
[0010]
In the case of an addition reaction type silicone pressure sensitive adhesive, an addition reaction between a vinyl group and a hydrosilyl group is used for crosslinking of the pressure sensitive adhesive. Usually, the vinyl group is introduced by partially replacing the organo group of the silicone gum component. Further, the hydrosilyl group is not introduced into the adhesive main agent side composed of a silicone resin component and a silicone gum component, and is used as a silicone crosslinking agent having a hydrosilyl group. Moreover, a catalyst such as a platinum catalyst is blended with the addition reaction type silicone pressure-sensitive adhesive as necessary to promote the reaction.
The crosslinking agent and / or catalyst may be of a type that is blended with the adhesive main agent at the time of coating, or when a catalyst is used, a type in which the crosslinking agent is already blended with the adhesive main agent may be used.
[0011]
The silicone-based pressure-sensitive adhesive layer is formed by applying the silicone-based pressure-sensitive adhesive to the surface of the heat-resistant substrate by a method such as roll coating, gravure coating, air knife coating, hot melt coating, or curtain flow coating. The thickness of the silicone-based pressure-sensitive adhesive layer (after drying) is about 1 to 50 μm, preferably about 5 to 20 μm. If the thickness is less than 1 μm, the adhesive strength of the resulting adhesive tape may not be sufficient. On the other hand, if it exceeds 50 μm, the adhesive performance will not be improved and it will be uneconomical. It may cause protrusion at the time of cohesion and cohesive failure during peeling.
A silicone type adhesive layer is formed in the single side | surface or both surfaces of a heat resistant base material according to a use.
[0012]
The silicone pressure-sensitive adhesive layer formed on one side or both sides of the heat resistant substrate is irradiated with an electron beam.
When the silicone adhesive does not contain a crosslinking agent and a catalyst, the electron beam is applied to the silicone adhesive layer formed by applying and drying the silicone adhesive on at least one side of the heat-resistant substrate. Irradiate. The silicone-based adhesive is cured by this electron beam irradiation.
On the other hand, when the silicone-based pressure-sensitive adhesive contains a crosslinking agent or a catalyst together with the crosslinking agent, the electron beam was formed by applying and heating the silicone-based pressure-sensitive adhesive on at least one surface of the heat-resistant substrate and curing it. Irradiate the silicone adhesive layer.
[0013]
In general, an electron beam accelerator having an energy of about 130 to 300 kV, preferably about 150 to 250 kV is used for electron beam irradiation. The dose of the irradiated electron beam is preferably 1 to 70 Mrad, and particularly preferably 2 to 20 Mrad.
If the dose of the irradiated electron beam is too small, the effects of the present invention may not be sufficiently obtained. Conversely, if the dose of the irradiated electron beam is too large, the adhesive tape may shrink or the pressure-sensitive adhesive layer. There is a risk of reducing the cohesive strength of.
The electron beam irradiation is preferably performed in a nitrogen atmosphere in order to prevent reaction inhibition by oxygen.
[0014]
By irradiating the silicone pressure-sensitive adhesive layer with an electron beam, the generation of volatile components that adversely affect the electronic device is reduced even at high temperatures. The reason for this is not clear, but for example, the volatile low molecular weight siloxane decreased due to chemical reaction due to electron beam irradiation, or the polymer of the gum component and resin component further cross-linked to suppress the movement of the low molecular weight component. It seems to be.
[0015]
The pressure-sensitive adhesive tape of the present invention is used for prevention of resin leakage at the time of resin sealing in a QFN (Quad Flat Non-lead) device manufacturing process, which is used in the manufacturing process of electronic devices and other stages, particularly under high temperature conditions. Suitable for applications such as tape, high-temperature high-pressure electrical insulating tape, masking tape for solder coating of printed circuit boards.
For example, in the QFN device manufacturing process, an adhesive tape for preventing resin leakage is affixed to a lead frame, a semiconductor chip is bonded to the lead frame with the adhesive tape, wire bonding is performed, and then the semiconductor chip is removed by a mold. After resin sealing, the adhesive tape is peeled off. A plurality of QFNs can be obtained by subjecting the resin sealing body to solder plating or the like as necessary, and then cutting and separating each chip body.
[0016]
EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not restrict | limited at all by these examples.
The amount of siloxane-based gas generated by the P & T / GC / MS analysis method (purge and trap gas chromatograph / mass spectrum analysis method) was determined according to the following apparatus and conditions.
P & T
Device: Nippon Analytical Industrial Co., Ltd., trade name: JHS-100A
Sample area: 1.0 cm 2
Purge: 10 min at 250 ° C. Helium 50 ml / min Trap: −80 ° C. Adsorbent: Tenax GC / MS
Apparatus: manufactured by PerkinElmer, Inc., trade name: turbo mass column: HP-5 30 m × 0.25 mm × 0.25 mm Helium 70 ml / min Oven: heated at 50 ° C. for 5 minutes, then 300 ° C. at a rate of 10 ° C./minute The temperature was raised to 300 ° C. and held at 300 ° C. for 10 minutes.
MS range: 29-500 m / z
Quantitative standard: dodecamethylcyclohexasiloxane (denoted as D6)
[0017]
Example 1
On one side of a 25 μm-thick polyimide film (trade name: Kapton 100H, which is a heat-resistant substrate), an addition-type silicone adhesive (trade name: SD-4589L, manufactured by Toray Dow Corning Co., Ltd., silicone gum) , Including silicone resin and SiH silicone cross-linking agent) in an amount of 0.6 parts by weight of platinum catalyst (trade name: SRX212, manufactured by Toray Dow Corning Co., Ltd.) It was coated and heated at 150 ° C. for 1 minute to obtain a tape on which a cured pressure-sensitive adhesive layer was formed.
This tape was irradiated with an electron beam under the conditions of an acceleration voltage of 200 KV, a beam current of 20 mA, a dose of 5 Mrad, and a nitrogen stream. The adhesive strength of this adhesive tape was 0.75 N / 25 mm.
As a result of quantifying the amount of siloxane-based gas generated by the P & T / GC / MS method for the pressure-sensitive adhesive tape after electron beam irradiation, the total amount of volatile components (D6 equivalent value, detection range corresponding to D10 to D18 with D15 as the peak) The range, the same applies hereinafter) was 5.6 μg / m 2 .
[0018]
Example 2
Example 1 except that the platinum catalyst was not blended with the addition-type silicone pressure-sensitive adhesive, and therefore, after the pressure-sensitive adhesive was applied, the pressure-sensitive adhesive layer that had only been subjected to normal drying was irradiated with an electron beam and cured. In the same manner as above, an electron-beam irradiated adhesive tape was obtained. The adhesive strength of this adhesive tape was 0.70 N / 25 mm.
With respect to this adhesive tape, the amount of generated siloxane-based gas was determined by the P & T / GC / MS method. As a result, the total amount of volatile components was 7.3 μg / m 2 .
[0019]
Example 3
Example 1 except that the adhesive was replaced with an addition-type silicone adhesive (manufactured by Toray Dow Corning Co., Ltd., trade name: SD-4587Fc, silicone gum and silicone resin included) and no platinum catalyst was added. Thus, an adhesive tape irradiated with an electron beam was obtained. The adhesive strength of this adhesive tape was 0.65 N / 25 mm.
As a result of quantifying the amount of siloxane-based gas generated by this P & T / GC / MS method for this adhesive tape, the total amount of volatile components was 6.5 μg / m 2 .
[0020]
Comparative Example 1
About the adhesive tape before irradiating an electron beam in Example 1, as a result of quantifying the amount of generated siloxane-based gases by the P & T / GC / MS method, the total amount of volatile components was 10.0 μg / m 2 . The adhesive strength of this adhesive tape was 0.80 N / 25 mm.
[0021]
【The invention's effect】
The pressure-sensitive adhesive tape of the present invention has the adhesive strength inherent to the silicone-based pressure-sensitive adhesive tape without any loss, and generates very little volatile components (outgas) derived from silicone, and is related to electronic devices. In particular, it is extremely suitable for various applications in a high temperature environment.

Claims (5)

耐熱性基材の少なくとも片面に、ビニル基含有のシリコーンガム成分と、シリコーンレジン成分と、ヒドロシリル基を有するシリコーン架橋剤からなる付加反応型シリコーン系粘着剤層が形成され、且つ該シリコーン系粘着剤層に電子線が照射されてなることを特徴とする電子デバイス用粘着テープ。  An addition reaction type silicone pressure sensitive adhesive layer comprising a vinyl group-containing silicone gum component, a silicone resin component, and a silicone crosslinking agent having a hydrosilyl group is formed on at least one surface of the heat resistant substrate, and the silicone pressure sensitive adhesive An adhesive tape for electronic devices, wherein the layer is irradiated with an electron beam. 照射した電子線の線量が、1〜70Mradである請求項1に記載の電子デバイス用粘着テープ。  The adhesive tape for electronic devices according to claim 1, wherein the dose of the irradiated electron beam is 1 to 70 Mrad. シリコーン系粘着剤が、更に白金触媒を含むものである請求項1または2に記載の電子デバイス用粘着テープ。  The pressure-sensitive adhesive tape for electronic devices according to claim 1 or 2, wherein the silicone pressure-sensitive adhesive further contains a platinum catalyst. 耐熱性基材が、ポリイミドフィルムである請求項1〜3の何れか一項に記載の電子デバイス用粘着テープ。The pressure-sensitive adhesive tape for electronic devices according to any one of claims 1 to 3, wherein the heat-resistant substrate is a polyimide film. 電子デバイスの樹脂封止工程において使用される樹脂漏れ防止用テープである請求項1〜4の何れか一項に記載の電子デバイス用粘着テープ。The pressure-sensitive adhesive tape for electronic devices according to any one of claims 1 to 4, which is a resin leakage preventing tape used in a resin sealing step of an electronic device.
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JP4679896B2 (en) * 2004-12-20 2011-05-11 リンテック株式会社 Heat-resistant adhesive tape for semiconductors
JP4608422B2 (en) * 2005-12-05 2011-01-12 共同技研化学株式会社 Adhesive film
JP2010095595A (en) * 2008-10-15 2010-04-30 Seiko Epson Corp Bonding method and bonded body
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JP5662329B2 (en) * 2008-10-29 2015-01-28 スリーエム イノベイティブ プロパティズ カンパニー Electron beam curable silicone material
JP2017069298A (en) * 2015-09-29 2017-04-06 信越ポリマー株式会社 Manufacturing method of tray for precision component
JP6517451B2 (en) 2016-11-24 2019-05-22 リンテック株式会社 Method for producing double-sided silicone adhesive sheet
JP7326015B2 (en) 2019-05-08 2023-08-15 マクセル株式会社 Adhesive tape for vacuum process
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