JP6215243B2 - 電子パッケージ、パッケージキャリアおよび両者の製造方法 - Google Patents
電子パッケージ、パッケージキャリアおよび両者の製造方法 Download PDFInfo
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- JP6215243B2 JP6215243B2 JP2015026541A JP2015026541A JP6215243B2 JP 6215243 B2 JP6215243 B2 JP 6215243B2 JP 2015026541 A JP2015026541 A JP 2015026541A JP 2015026541 A JP2015026541 A JP 2015026541A JP 6215243 B2 JP6215243 B2 JP 6215243B2
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- layer
- insulating pattern
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- support plate
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Images
Classifications
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/12—Semiconductors
- C25D7/123—Semiconductors first coated with a seed layer or a conductive layer
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
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Description
本実施例のパッケージキャリアの製造方法では、導体層110および載置板120を設け、導体層110は載置板120上に重なるものであり、かつ銅箔、銀箔、アルミニウム箔または合金箔のような金属箔片であることができる。
また、絶縁パターン131は少なくとも1つの開口を有する。図1を例にとると、絶縁パターン131は開口131aと開口131bを有し、開口131aと131bはいずれも表面110sまで延伸している。絶縁パターン131はたとえばウェットフィルムまたはドライフィルムのソルダーレジストのようなソルダーレジスト層であることができ、かつ絶縁パターン131はインクジェットまたはラミネートにより形成する。また、ソルダーレジスト層は感光性を有し、開口131aと131bは露光(exposure)および現像(development)により形成する。
また、絶縁パターン131を利用する以外にも、他の接着剤を用いて支持板200と絶縁パターン131を接着することもできる。その接着剤には、繰り返し接着可能な感圧接着剤(pressure sensitive adhesives)を用いることができ、たとえばゴム系感圧接着剤やアクリル系感圧接着剤やシリコン樹脂系感圧接着剤があり、その接着剤には、シリコン樹脂、ゴム、ポリジメチルシロキサン(Polydimethylsiloxane,PDMS)、ポリメチルメタクリレート(Polymethylmethacrylate,PMMA、通称アクリル)または樹脂から作られたものを用いることができる。
また、注目すべきは、本実施例の製造方法には配線層111表面の粗度を変えること、および保護層140を形成すること、の2つのステップを含むことができるが、その他の実施例の製造方法は上述の2つのステップを含まなくてもよいので、パッケージキャリア311が保護層140を含まなくてもよいという点である。
続いて図2Dと図2Eを参照されたい。支持板200、絶縁パターン131および配線層111をダイシングし、ワーキングパネル300から複数の基板ストリップ301を切り出す。
接着層420には銀ペーストまたは高分子フィルムを用いることができる。接着層420が銀ペーストである場合、接着層420は実装パッド113の粗度の影響を受けて拡散することがある。しかし、配線層111の表面111sはまず表面処理により粗度を変えることができるため、接着層420の拡散程度を制御し、電子素子410を実装パッド113上にしっかりと接着することができる。同様に、モールド層430と配線層111の間の接合力はこの粗度と関係し、配線層111は上述の表面処理を利用してモールド層430と配線層111の間の接合力を高めることで、モールド層430が外れるのを防ぐことができる。
図3Bと図3Cで示すように、複数の電子素子410はこれらのパッケージキャリアの実装パッド113上にそれぞれ実装することができる。また、これらの配線層111を形成した後、これらのパッケージキャリアに関しては図2Dで示す工程を進める。たとえば、これらの配線層111表面の粗度を変えて配線層111上に保護層140を形成する(図2Dに表示)。
電気めっきを施す過程では、金属層211と配線層111が電気的に導通するため、金属層211は通電し、配線層111に電気めっきを施して、配線層111上にソルダーレジスト層531から露出した保護層540を形成することができる。
続いて、ソルダーレジスト層531上に電子素子410を覆うモールド層430を形成する。ここでは、ソルダーレジスト層531、保護層540、電子素子410およびモールド層430を含む電子パッケージ500はすでに製造完了しているものとする。また、モールド層430の形成後、図3Cで示した工程を実行できる。つまり、支持板200と絶縁パターン131を分離して支持板200を除去し、ダイシングを行い、支持板200を含まない電子パッケージ500を形成する。
バリア層611とシード層612はいずれも金属層であることができ、バリア層611の材料は導体層110とシード層612とは異なる。たとえば、バリア層611はニッケル金属層であり、導体層110とシード層612はいずれも銅金属層であることができる。また、バリア層611とシード層612の形成方法は、たとえば化学的気相析出法、物理的気相析出法、電気めっきまたは化学めっきのような析出法を用いることができる。
次に図6Eと図6Fを参照されたい。導体層110、バリア層611およびシード層612を除去する。これらの膜層の除去方法にはウェットエッチングを用いることができる。バリア層611の材料は導体層110と異なるため、バリア層611の腐食液(etchant)は導体層110を除去するための腐食液と異なる。バリア層611(たとえばニッケル層)は酸性の腐食液を用いて除去でき、導体層110(たとえば銅層)はアルカリ性の腐食液を用いて除去できる。
このように、電気めっきを行う工程では、金属層211と配線層613の間の電気的な導通を利用し、電流を金属層211を経由して配線層613に流すことで、配線層613上に保護層540を形成する。また、配線層613は少なくとも1つの電気めっきクランプ点(electroplating clamp point)を有する。
図8Dを参照されたい。まず、第一配線層912上に複数の金属柱913を形成する。この金属柱913の形成方法は金属柱813の形成方法と同様である。しかし、金属柱913の形成に用いられるパターンマスク(図中未表示)の厚さは前述の第二パターンマスクM72より大きく、金属柱913の長さは金属柱813の長さより長くてもよい。
110、811 導体層
110s、111s 表面
111、613 配線層
112、613c、812c、912c 接続パッド
113、613p、812p、912p 実装パッド
120、520 載置板
121 剥離層
122、124、211、212 金属層
123、821、921 誘電体層
131 絶縁パターン
131a、131b、H1、H2 開口
132 接合材料
140、540 保護層
200、1000 支持板
210 板材
213 接合層
220 プラスチック板材
300 ワーキングパネル
301 基板ストリップ
311、312 パッケージキャリア
400、401、500 電子パッケージ
410、900 電子素子
420 接着層
430 モールド層
531 ソルダーレジスト層
611 バリア層
612 シード層
812、912 第一配線層
813、913 金属柱
814、914 第二配線層
D1 深さ
M71 第一パターンマスク
M72 第二パターンマスク
M81 パターンマスク
P2 凹状パターン
T1、T2、T3、T7 厚さ
Claims (22)
- 載置板と、前記載置板上に位置する導体層を設けること、
前記導体層上に絶縁パターンを形成し、前記絶縁パターンは前記導体層を部分的に露出させること、
凹状パターンを有する支持板を設け、前記凹状パターンは前記絶縁パターンと嵌合し、かつ前記絶縁パターンと前記支持板を合わせ、前記絶縁パターンを前記支持板に接触させ、前記絶縁パターンと前記支持板が合わさると、前記絶縁パターンは前記凹状パターン内に位置すること、
前記絶縁パターンと前記支持板を合わせた後、前記載置板を除去し、かつ前記導体層を残すこと、
前記載置板を除去した後、前記導体層をパターニングして配線層を形成すること、を含む、
パッケージキャリアの製造方法。 - 前記絶縁パターンはソルダーレジスト層である、請求項1に記載のパッケージキャリアの製造方法。
- 前記絶縁パターンから部分的に露出した前記導体層上に接合材料を形成するここと、をさらに含む、請求項1に記載のパッケージキャリアの製造方法。
- 前記接合材料ははんだ、金属層または有機フラックス層である、請求項3に記載のパッケージキャリアの製造方法。
- 前記載置板は主板と剥離層を含み、前記剥離層は前記導体層と前記主板の間に配置する、請求項1に記載のパッケージキャリアの製造方法。
- 前記配線層を形成した後、前記配線層上に前記配線層を露出させるソルダーレジスト層を形成すること、をさらに含む、請求項1に記載のパッケージキャリアの製造方法。
- 前記支持板は前記配線層と電気的に導通する金属層を有し、前記ソルダーレジスト層を形成した後の方法として、
前記金属層に通電して前記配線層に電気めっきを施すことにより保護層を形成し、前記ソルダーレジスト層は前記保護層を露出させること、
をさらに含む、請求項6に記載のパッケージキャリアの製造方法。 - 前記配線層を形成した後、前記配線層の表面粗度を変えること、をさらに含む、請求項1に記載のパッケージキャリアの製造方法。
- 少なくとも2層の前記導体層を設け、かつ前記載置板は前記導体層の間に位置すること、
前記導体層上には前記絶縁パターンをそれぞれ形成すること、
2つの前記支持板を設けること、
前記絶縁パターンと前記支持板をそれぞれ合わせ、前記絶縁パターンを前記支持板に接触させること、
前記絶縁パターンと前記支持板を合わせた後、前記載置板を除去し、かつ前記導体層を残すこと、
前記載置板を除去した後、前記導体層をパターニングして前記配線層をそれぞれ形成すること、
を含む、前記請求項1に記載のパッケージキャリアの製造方法。 - 載置板上に配線構造と絶縁パターンを形成し、前記絶縁パターンは前記配線構造と接続し、かつ前記配線構造は前記絶縁パターンと前記載置板の間に位置すること、
凹状パターンを有する支持板を設け、前記凹状パターンは前記絶縁パターンと嵌合し、かつ前記絶縁パターンと前記支持板を合わせ、前記絶縁パターンを前記支持板に接触させ、前記絶縁パターンと前記支持板が合わさると、前記絶縁パターンは前記凹状パターン内に位置すること、
前記絶縁パターンと前記支持板を合わせた後、前記載置板を除去し、かつ前記配線構造を残すこと、
を含む、パッケージキャリアの製造方法。 - 前記配線構造を形成する方法は、
前記載置板上に位置する導体層を設けること、
前記導体層上にバリア層を形成すること、
前記バリア層上に少なくとも1つの配線層を形成し、前記絶縁パターンを前記少なくとも1つの配線層上に形成すること
を含む、請求項10に記載のパッケージキャリアの製造方法。 - 前記載置板を除去した後、前記バリア層と前記導体層を除去する、請求項11に記載のパッケージキャリアの製造方法。
- 前記少なくとも1つの配線層を形成する方法は、前記バリア層上にシード層を形成することを含み、前記バリア層は前記導体層と前記シード層の間に位置し、前記載置板を除去した後、前記シード層をさらに除去する、請求項11に記載のパッケージキャリアの製造方法。
- 前記配線構造を形成する方法は、
前記載置板上に第一配線層を形成すること、
前記第一配線層上に複数の金属柱を形成すること、
前記金属柱を形成した後、前記第一配線層と前記金属柱を覆う誘電体層を形成すること、
前記金属柱に接続する第二配線層を前記誘電体層上に形成すること、
を含む、請求項10に記載のパッケージキャリアの製造方法。 - 少なくとも1つの接続パッドと実装パッドを備え、前記実装パッドは電子素子を実装するのに用いられ、前記接続パッドは前記電子素子を電気的に接続するのに用いられる配線構造と、
前記配線構造に接続する絶縁パターンと、
前記絶縁パターンと嵌合する凹状パターンを有する支持板であって、前記絶縁パターンと前記支持板が合わさり、前記絶縁パターンが前記凹状パターン内に位置する支持板と、
を含む、パッケージキャリア。 - 前記配線構造は、
少なくとも2層の配線層であり、その中の1層が前記少なくとも1つの接続パッドと前記実装パッドを備える配線層と、
前記少なくとも2層の配線層の間に位置する少なくとも1つの誘電体層と、
前記少なくとも2層の配線層に電気的に接続し、かつ前記少なくとも1つの誘電体層中に位置する複数の金属柱と、
をさらに含む、請求項15に記載のパッケージキャリア。 - 前記配線構造は配線層であり、前記絶縁パターンは、前記配線層に接触し、かつ前記少なくとも1つの接続パッドを露出させる開口を有する、請求項15に記載のパッケージキャリア。
- 前記支持板は、
プラスチック板材と、
前記プラスチック板材に接続し、かつ前記凹状パターンを有し、前記絶縁パターンと前記プラスチック板材の間に配置される金属層と、
を含む、請求項15に記載のパッケージキャリア。 - 請求項15に記載のパッケージキャリアの前記実装パッド上に前記電子素子を実装すること、
前記配線構造上に前記電子素子を覆うモールド層を形成すること、
前記モールド層を形成した後、前記支持板を除去すること、
を含む、電子パッケージの製造方法。 - 前記電子素子を前記配線構造上に実装する前に、前記支持板、前記絶縁パターンおよび前記配線構造をダイシングして複数の基板ストリップを形成し、前記電子素子をその中の1つの基板ストリップ上に実装すること、
をさらに含む、請求項19に記載の電子パッケージの製造方法。 - 前記支持板を除去した後、前記基板ストリップをダイシングすること、
をさらに含む、請求項20に記載の電子パッケージの製造方法。 - 少なくとも1つの接続パッドと実装パッドを備え、前記実装パッドは電子素子を実装するのに用いられ、前記接続パッドは前記電子素子を電気的に接続するのに用いられる配線層と、
前記配線層の両側にそれぞれ取り付けられる2層のソルダーレジスト層であって、前記ソルダーレジスト層の少なくとも1層が前記配線層を貫通し、前記ソルダーレジスト層が互いに接触する2層のソルダーレジスト層と、
前記ソルダーレジスト層の1つと嵌合する凹状パターンを有する支持板であって、前記ソルダーレジスト層の1つは該支持板と合わさり、前記凹状パターン内に位置する、支持板と、
を含むパッケージキャリアと、
前記実装パッド上に実装され、かつ前記少なくとも1つの接続パッドに電気的に接続する前記電子素子であって、前記電子素子と前記ソルダーレジスト層の1つとの間に前記少なくとも1つの接続パッドと前記実装パッドがいずれも位置する、前記電子素子と、
前記電子素子を覆うモールド層と、
を備える電子パッケージ。
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CN114914222A (zh) * | 2022-03-01 | 2022-08-16 | 珠海越亚半导体股份有限公司 | 用于制备封装基板的承载板、封装基板结构及其制作方法 |
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JP2002093943A (ja) * | 2000-09-11 | 2002-03-29 | Mitsui Mining & Smelting Co Ltd | 電子部品実装用フィルムキャリアテープの製造方法および電子部品実装用フィルムキャリアテープの製造装置 |
JP2002231769A (ja) * | 2001-01-31 | 2002-08-16 | Hitachi Cable Ltd | テープキャリア及びその製造方法 |
JP3773896B2 (ja) * | 2002-02-15 | 2006-05-10 | Necエレクトロニクス株式会社 | 半導体装置の製造方法 |
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CN1791311B (zh) * | 2004-12-01 | 2012-02-22 | 新光电气工业株式会社 | 制造电路基板的方法和制造电子部件封装结构的方法 |
WO2008001915A1 (fr) * | 2006-06-30 | 2008-01-03 | Nec Corporation | Carte de câblage, dispositif à semi-conducteurs l'utilisant et leurs procédés de fabrication |
JP5203045B2 (ja) * | 2008-05-28 | 2013-06-05 | 日本特殊陶業株式会社 | 多層配線基板の中間製品、多層配線基板の製造方法 |
TWI442530B (zh) * | 2009-10-14 | 2014-06-21 | Advanced Semiconductor Eng | 封裝載板、封裝結構以及封裝載板製程 |
JPWO2013046500A1 (ja) * | 2011-09-27 | 2015-03-26 | パナソニックIpマネジメント株式会社 | 電子部品モジュールの製造方法 |
JP5372112B2 (ja) * | 2011-11-04 | 2013-12-18 | 新光電気工業株式会社 | 配線基板の製造方法及び半導体パッケージの製造方法 |
TWI557855B (zh) * | 2011-12-30 | 2016-11-11 | 旭德科技股份有限公司 | 封裝載板及其製作方法 |
TWI538125B (zh) * | 2012-03-27 | 2016-06-11 | 南茂科技股份有限公司 | 半導體封裝結構的製作方法 |
JP2013243227A (ja) * | 2012-05-18 | 2013-12-05 | Ibiden Co Ltd | 配線板及びその製造方法 |
JP6029873B2 (ja) * | 2012-06-29 | 2016-11-24 | 新光電気工業株式会社 | 配線基板、配線基板の製造方法及び半導体装置の製造方法 |
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- 2015-02-13 CN CN201510080332.XA patent/CN105185716A/zh active Pending
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JP2015164189A (ja) | 2015-09-10 |
CN105185716A (zh) | 2015-12-23 |
CN205028884U (zh) | 2016-02-10 |
TW201546912A (zh) | 2015-12-16 |
US20150262927A1 (en) | 2015-09-17 |
TWI588912B (zh) | 2017-06-21 |
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