JP7421357B2 - 部品内蔵基板及び部品内蔵基板の製造方法 - Google Patents
部品内蔵基板及び部品内蔵基板の製造方法 Download PDFInfo
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- JP7421357B2 JP7421357B2 JP2020018317A JP2020018317A JP7421357B2 JP 7421357 B2 JP7421357 B2 JP 7421357B2 JP 2020018317 A JP2020018317 A JP 2020018317A JP 2020018317 A JP2020018317 A JP 2020018317A JP 7421357 B2 JP7421357 B2 JP 7421357B2
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- H01L25/16—Assemblies consisting of a plurality of semiconductor or other solid state devices the devices being of types provided for in two or more different subclasses of H10B, H10D, H10F, H10H, H10K or H10N, e.g. forming hybrid circuits
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- H01L23/5389—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates the chips being integrally enclosed by the interconnect and support structures
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- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups H01L21/18 - H01L21/326 or H10D48/04 - H10D48/07
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- H05K1/00—Printed circuits
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- H05K1/111—Pads for surface mounting, e.g. lay-out
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
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- H05K1/115—Via connections; Lands around holes or via connections
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
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- H05K1/185—Components encapsulated in the insulating substrate of the printed circuit or incorporated in internal layers of a multilayer circuit
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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- H01L2924/191—Disposition
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- Engineering & Computer Science (AREA)
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- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Geometry (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Combinations Of Printed Boards (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Description
[部品内蔵基板の構成]
図1は、実施例に係る部品内蔵基板100の構成を示す図である。図1においては、部品内蔵基板100の断面を模式的に示している。なお、以下の説明においては、部品内蔵基板100を外部の部品や機器などに接続する際に外部の部品や機器側に位置する面を「下面」と呼び、外部の部品や機器とは反対側に位置する面を「上面」と呼ぶとともに、これに準じて上下方向を規定する。ただし、部品内蔵基板100は、例えば上下反転して製造及び使用されてもよく、任意の姿勢で製造及び使用されてよい。
次に、上記のように構成される部品内蔵基板100の製造方法について説明する。以下では、下側配線基板110の製造方法、上側配線基板120の製造方法及び中間配線基板130の製造方法について説明した後に、下側配線基板110、上側配線基板120及び中間配線基板130を有する部品内蔵基板100の製造方法について説明する。
101 封止樹脂
102、104 ICチップ
103、105 電子部品
106 はんだボール
110 下側配線基板
111、121、131 基板
112、114、122、124、132、134 ソルダーレジスト層
112a、114a、122a、124a、132a、134a 開口部
113、123、133 上面パッド
115、125、135 下面パッド
120 上側配線基板
130 中間配線基板
136 スルーホール配線
136a、136b 金属層
136c めっき層
136d 充填樹脂
140、150 接続部材
141、151 コア
142、152 はんだ
Claims (13)
- 第1配線基板と、
前記第1配線基板上に設けられる電子部品と、
前記第1配線基板上であって、前記電子部品の周囲に設けられ、第1接続部材を介して前記第1配線基板に接続する中間配線基板と、
前記第1配線基板上、前記電子部品上及び前記中間配線基板上に設けられ、第2接続部材を介して前記中間配線基板に接続する第2配線基板と、
前記第1配線基板と前記第2配線基板との間に充填され、前記電子部品及び前記中間配線基板を被覆する封止樹脂と
を有し、
前記中間配線基板は、
前記電子部品の周囲に位置し、前記封止樹脂によって被覆される第1側面と、
前記第1側面の反対側に位置し、前記封止樹脂によって被覆される第2側面と
を有し、
前記中間配線基板は、
前記第1配線基板及び前記第2配線基板の各々と間隔を空けて位置し、
前記封止樹脂の一部は、
前記第1配線基板の上面と前記中間配線基板の下面との間に充填され、前記第1配線基板の上面及び前記中間配線基板の下面を被覆し、
前記封止樹脂の他の一部は、
前記中間配線基板の上面と前記第2配線基板の下面との間に充填され、前記中間配線基板の上面及び前記第2配線基板の下面を被覆することを特徴とする部品内蔵基板。 - 前記第1配線基板は、
第1基板と、
前記第1基板の上面の配線層に形成され、前記第1接続部材を接続する第1パッドと、
前記第1基板の上面を被覆し、前記第1パッドを露出させる開口部を有する第1絶縁層と
を有し、
前記中間配線基板は、
第2基板と、
前記第2基板の下面の配線層に形成され、前記第1接続部材を接続する第2パッドと、
前記第2基板の下面を被覆し、前記第2パッドを露出させる開口部を有する第2絶縁層と
を有し、
前記第2絶縁層の開口部の径は、前記第1絶縁層の開口部の径よりも小さい
ことを特徴とする請求項1に記載の部品内蔵基板。 - 前記中間配線基板は、
第2基板と、
前記第2基板の上面の配線層に形成され、前記第2接続部材を接続する第3パッドと、
前記第2基板の上面を被覆し、前記第3パッドを露出させる開口部を有する第3絶縁層と
を有し、
前記第2配線基板は、
第3基板と、
前記第3基板の下面の配線層に形成され、前記第2接続部材を接続する第4パッドと、
前記第3基板の下面を被覆し、前記第4パッドを露出させる開口部を有する第4絶縁層と
を有し、
前記第4絶縁層の開口部の径は、前記第3絶縁層の開口部の径よりも小さい
ことを特徴とする請求項1に記載の部品内蔵基板。 - 前記中間配線基板は、
第2基板と、
前記第2基板の下面の配線層に形成され、前記第1接続部材を接続する第2パッドと、
前記第2基板の上面の配線層に形成され、前記第2接続部材を接続する第3パッドと、
を有し、
前記第2パッド及び前記第3パッドは、
前記第2基板を貫通する貫通配線によって接続され、前記貫通配線に対応する位置に凹部を有する
ことを特徴とする請求項1に記載の部品内蔵基板。 - 前記第1接続部材及び前記第2接続部材は、
前記中間配線基板を厚さ方向から見た場合に、互いに重なる位置に配置される
ことを特徴とする請求項1に記載の部品内蔵基板。 - 前記中間配線基板は、
前記電子部品と、前記第1配線基板及び前記第2配線基板の外周縁との間に配置される
ことを特徴とする請求項1に記載の部品内蔵基板。 - 前記第1接続部材及び前記第2接続部材の各々は、
略球状のコアと、
前記コアを被覆するはんだと
を有することを特徴とする請求項1に記載の部品内蔵基板。 - 前記第1接続部材及び前記第2接続部材の各々は、
柱状であり、上端面及び下端面にはんだを有する
ことを特徴とする請求項1に記載の部品内蔵基板。 - 前記中間配線基板の前記第1側面及び前記第2側面を含む全ての側面が、
前記封止樹脂によって被覆されている
ことを特徴とする請求項1に記載の部品内蔵基板。 - 第1配線基板上に電子部品を搭載する工程と、
前記第1配線基板上であって、前記電子部品の周囲に中間配線基板を配置し、前記第1配線基板及び前記中間配線基板を第1接続部材によって接合する工程と、
前記電子部品上及び前記中間配線基板上に第2配線基板を配置し、前記中間配線基板及び前記第2配線基板を第2接続部材によって接合する工程と、
前記第1配線基板と前記第2配線基板との間に封止樹脂を充填して、前記電子部品及び前記中間配線基板を被覆する工程と
を有し、
前記被覆する工程は、
前記中間配線基板の前記電子部品の周囲に位置する第1側面を前記封止樹脂によって被覆し、
前記中間配線基板の前記第1側面の反対側に位置する第2側面を前記封止樹脂によって被覆し、
前記中間配線基板は、
前記第1配線基板及び前記第2配線基板の各々と間隔を空けて位置し、
前記封止樹脂の一部は、
前記第1配線基板の上面と前記中間配線基板の下面との間に充填され、前記第1配線基板の上面及び前記中間配線基板の下面を被覆し、
前記封止樹脂の他の一部は、
前記中間配線基板の上面と前記第2配線基板の下面との間に充填され、前記中間配線基板の上面及び前記第2配線基板の下面を被覆する
ことを特徴とする部品内蔵基板の製造方法。 - 前記第1接続部材及び前記第2接続部材の各々は、
略球状のコアと、
前記コアを被覆するはんだと
を有することを特徴とする請求項10に記載の部品内蔵基板の製造方法。 - 前記第1接続部材及び前記第2接続部材の各々は、
柱状であり、上端面及び下端面にはんだを有する
ことを特徴とする請求項10に記載の部品内蔵基板の製造方法。 - 前記中間配線基板の前記第1側面及び前記第2側面を含む全ての側面が、
前記封止樹脂によって被覆されている
ことを特徴とする請求項10に記載の部品内蔵基板の製造方法。
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