JP2021141226A - 電子部品内蔵回路基板及びその製造方法 - Google Patents
電子部品内蔵回路基板及びその製造方法 Download PDFInfo
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- JP2021141226A JP2021141226A JP2020038547A JP2020038547A JP2021141226A JP 2021141226 A JP2021141226 A JP 2021141226A JP 2020038547 A JP2020038547 A JP 2020038547A JP 2020038547 A JP2020038547 A JP 2020038547A JP 2021141226 A JP2021141226 A JP 2021141226A
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- Prior art keywords
- insulating layer
- cavity
- electronic component
- wiring pattern
- circuit board
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- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/1515—Shape
- H01L2924/15153—Shape the die mounting substrate comprising a recess for hosting the device
- H01L2924/15155—Shape the die mounting substrate comprising a recess for hosting the device the shape of the recess being other than a cuboid
- H01L2924/15156—Side view
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/153—Connection portion
- H01L2924/1531—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
- H01L2924/15313—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a land array, e.g. LGA
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
Abstract
Description
1a 電子部品内蔵回路基板の上面
1b 電子部品内蔵回路基板の下面
3〜5,4a,4b 絶縁層
11〜14,21〜23,31〜33,41〜43 配線パターン
50〜59 ビア導体
50a〜59a 開口部
50b〜59b ビア
60,70 電子部品
61,62 端子電極
71,72 ボンディングパッド
73 ダイアタッチフィルム
74 導電性ペースト
80 メッキ膜
BW1,BW2 ボンディングワイヤ
C キャビティ
Ca 開口部
L1〜L4 導体層
L3a 導体層の表面
P メッキ
SR1,SR2 ソルダーレジスト
Claims (11)
- 第1の絶縁層と、
前記第1の絶縁層に埋め込まれた第1の電子部品と、
前記第1の絶縁層の一方の表面に設けられた第1の配線パターンと、
前記第1の絶縁層の他方の表面を覆う第2の絶縁層と、
前記第2の絶縁層の前記第1の絶縁層とは反対側の表面に設けられた第2の配線パターンと、を備え、
前記第1及び第2の絶縁層はキャビティを有し、前記キャビティの底面に前記第1の配線パターンが露出しており、
前記第2の配線パターンは、前記キャビティの開口部の周囲において前記第2の絶縁層が露出しないよう、前記キャビティの前記開口部を取り囲むように設けられていることを特徴とする電子部品内蔵回路基板。 - 前記第1の絶縁層は、前記第2の絶縁層よりも熱膨張係数が大きいことを特徴とする請求項1に記載の電子部品内蔵回路基板。
- 前記第1の配線パターンの外周部は、前記キャビティの底面に露出することなく前記第1の絶縁層で覆われていることを特徴とする請求項1又は2に記載の電子部品内蔵回路基板。
- 前記キャビティの内壁がメッキ膜で覆われていることを特徴とする請求項1乃至3のいずれか一項に記載の電子部品内蔵回路基板。
- 前記第1の絶縁層と前記第2の絶縁層の間に設けられた第3の配線パターンをさらに備え、
前記第3の配線パターンは、前記キャビティの内壁に露出していることを特徴とする請求項1乃至4のいずれか一項に記載の電子部品内蔵回路基板。 - 前記第1の絶縁層の前記一方の表面を覆う第3の絶縁層と、
前記第3の絶縁層の前記第1の絶縁層とは反対側の表面に設けられた第4の配線パターンと、
前記第3の絶縁層を貫通して設けられ、前記第1の配線パターンと前記第4の配線パターンを接続するビア導体と、をさらに備え、
前記ビア導体は、前記キャビティと重なる位置に設けられていることを特徴とする請求項1乃至5のいずれか一項に記載の電子部品内蔵回路基板。 - 前記キャビティに収容され、前記第1の電子部品よりも厚い第2の電子部品をさらに備えることを特徴とする請求項1乃至6のいずれか一項に記載の電子部品内蔵回路基板。
- 前記キャビティに収容され、前記第1の電子部品よりも厚い第2の電子部品と、
前記キャビティの内壁と前記第2の電子部品の間に充填された導電性ペーストと、をさらに備え、
前記導電性ペーストは、前記キャビティの内壁に露出する前記第3の配線パターンと接していることを特徴とする請求項5に記載の電子部品内蔵回路基板。 - 一方の表面に第1の配線パターンが形成された第1の絶縁層に第1の電子部品を埋め込む第1の工程と、
前記第1の絶縁層の他方の表面に第2の絶縁層を形成する第2の工程と、
前記第1及び第2の絶縁層を貫通するキャビティを形成することにより、前記キャビティの底面に前記第1の配線パターンを露出させる第3の工程と、を備え、
前記第2の絶縁層の前記第1の絶縁層とは反対側の表面に設けられた第2の配線パターンは、前記キャビティの開口部の周囲において前記第2の絶縁層が露出しないよう、前記キャビティの前記開口部を取り囲むように設けられていることを特徴とする電子部品内蔵回路基板の製造方法。 - 前記第3の工程は、前記第2の配線パターンをマスクとし、前記第1の配線パターンをストッパーとして、前記第1及び第2の絶縁層の一部を除去することにより前記キャビティを形成することを特徴とする請求項9に記載の電子部品内蔵回路基板の製造方法。
- 前記キャビティに、前記第1の電子部品よりも厚い第2の電子部品を収容する第4の工程をさらに備えることを特徴とする請求項9又は10に記載の電子部品内蔵回路基板の製造方法。
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JP2011216740A (ja) * | 2010-03-31 | 2011-10-27 | Ibiden Co Ltd | 配線板及び配線板の製造方法 |
JP2014116548A (ja) * | 2012-12-12 | 2014-06-26 | Ngk Spark Plug Co Ltd | 多層配線基板およびその製造方法 |
JP2015133387A (ja) * | 2014-01-10 | 2015-07-23 | 新光電気工業株式会社 | 配線基板、配線基板の製造方法 |
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JP2011216740A (ja) * | 2010-03-31 | 2011-10-27 | Ibiden Co Ltd | 配線板及び配線板の製造方法 |
JP2014116548A (ja) * | 2012-12-12 | 2014-06-26 | Ngk Spark Plug Co Ltd | 多層配線基板およびその製造方法 |
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