JP2015015442A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP2015015442A JP2015015442A JP2013142861A JP2013142861A JP2015015442A JP 2015015442 A JP2015015442 A JP 2015015442A JP 2013142861 A JP2013142861 A JP 2013142861A JP 2013142861 A JP2013142861 A JP 2013142861A JP 2015015442 A JP2015015442 A JP 2015015442A
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- Prior art keywords
- pad
- semiconductor device
- conductive tape
- conductive adhesive
- conductive
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 41
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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- 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
- H01L2924/181—Encapsulation
-
- 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
- H01L2924/19—Details of hybrid assemblies other than the semiconductor or other solid state devices to be connected
- H01L2924/191—Disposition
- H01L2924/19101—Disposition of discrete passive components
- H01L2924/19105—Disposition of discrete passive components in a side-by-side arrangement on a common die mounting substrate
Abstract
【課題】製品の品質及び生産性を向上することができる半導体装置を得る。【解決手段】基板1上にパッド2,3が隣接して設けられている。導電性テープ6がパッド2,3に貼り付けられている。導電性テープ6はパッド2の内側に貫通穴7を有する。導電性接着剤8が貫通穴7内に塗布されている。導電性接着剤8は導電性テープ6よりも高い熱伝導率を持つ。半導体チップ9が導電性接着剤8によりパッド2上に実装されている。電子部品10が導電性テープ6によりパッド3上に実装されている。【選択図】図3
Description
本発明は、製品の品質及び生産性を向上することができる半導体装置に関する。
光モジュールや携帯電話用パワーアンプにおいて、電気特性の向上と小型化のために、半導体チップやコンデンサ部品を狭い間隔で高密度に実装する狭隣接実装が必要となってきている。現在の実装方法では、Agペースト樹脂をダイパット上に転写やディスペンスにより塗布し、そのAgペースト樹脂上に部品を自動ダイボンド装置により載せる。また、部品を導電性テープにより実装する方法も提案されている(例えば、特許文献1の段落0013−0014及び図3参照)。
Agペースト樹脂による実装の場合、チップ端と部品端からAgペースト樹脂がはみ出す。特に狭隣接実装では両者からはみ出したAgペースト樹脂が狭い隙間で重なり合って樹脂量が多くなる。このため、Agペースト樹脂が半導体と電子部品の上面に這い上がり、上面電極と下面側の配線がショートする。また、大電流を流し発熱量が大きいアクティブ部品を導電性テープ上に実装した場合、放熱性と電流容量が不足し部品が故障する可能性がある。このため、製品の品質及び生産性が低下するという問題があった。
本発明は、上述のような課題を解決するためになされたもので、その目的は製品の品質及び生産性を向上することができる半導体装置を得るものである。
本発明に係る半導体装置は、基板と、基板上に隣接して設けられた第1及び第2のパッドと、前記第1及び第2のパッドに貼り付けられ、前記第1のパッドの内側に貫通穴を有する導電性テープと、前記貫通穴内に塗布され、前記導電性テープよりも高い熱伝導率を持つ導電性接着剤と、前記導電性接着剤により前記第1のパッド上に実装された半導体チップと、前記導電性テープにより前記第2のパッド上に実装された電子部品とを備えることを特徴とする。
本発明により、製品の品質及び生産性を向上することができる。
図1は、本発明の実施の形態に係る半導体装置を示す斜視図である。ただし、図1では一部を切り欠いて装置内部を示している。図2は、本発明の実施の形態に係る半導体装置の内部を示す上面図である。図3は、本発明の実施の形態に係る半導体装置の主要部を示す断面図である。
基板1はセラミック材又は有機材である。基板1の上面にパッド2,3,4及び配線5を有する電気回路が設けられている。パッド2,3は隣接して配置され、配線5を介して接続されている。はんだ付け性とワイヤボンド性を向上させるため、パッド2,3,4の最表層には表面処理としてAuめっきが施されている。
導電性テープ6がパッド2,3に貼り付けられている。導電性テープ6は、熱を加えることで硬化して接合強度を保つダイボンドフィルムなどである。導電性テープ6はパッド2の内側に貫通穴7を有する。導電性接着剤8が貫通穴7内に塗布されている。導電性接着剤8はAgペースト樹脂(Agエポシキ樹脂、Agホリィミド樹脂)又ははんだなどであり、導電性テープ6よりも高い熱伝導率を持つ。
半導体チップ9が導電性テープ6と導電性接着剤8によりパッド2上に実装されている。電子部品10が導電性テープ6によりパッド3上に実装されている。半導体チップ9は大電流を流し発熱量が大きいアクティブ部品である。電子部品10はコンデンサ、インダクタ、スイッチ等である。
半導体チップ9の下面に下面電極11が設けられ、半導体チップ9の上面に上面電極12,13が設けられている。下面電極11は導電性接着剤8を介してパッド2に接続されている。貫通穴7のサイズは半導体チップ9の外形サイズより若干小さい。導電性テープ6には厚みが存在するため、導電性接着剤8は導電性テープ6の貫通穴7内において下面電極11とパッド2の間に留まる。
半導体チップ9の上面電極12が金属ワイヤ14を介してパッド4に接続され、上面電極13が金属ワイヤ15を介して電子部品10に接続されている。半導体チップ9、電子部品10、及び金属ワイヤ14,15は樹脂16により封止されている。
続いて、本実施の形態の効果を比較例と比較して説明する。図4及び図5は比較例に係る半導体装置を示す断面図である。比較例では半導体チップ9と電子部品10の実装に導電性接着剤8のみを用いる。このため、図4に示すように半導体チップ9と電子部品10の間隔を近づけると、部品からはみ出した導電性接着剤8が半導体チップ9と電子部品10の上面に這い上がり、上面電極13と下面側のパッド2等がショートする。従って、図5に示すように半導体チップ9と電子部品10の間隔を広げなければならない。
一方、本実施の形態では、導電性テープ6の貫通穴7に塗布した導電性接着剤8を用いて半導体チップ9を実装する。半導体チップ9が蓋として機能するため、導電性接着剤8が貫通穴7から漏れ広がるのを防ぐことができる。従って、半導体チップ9と電子部品10の間隔を近づけることができる。この結果、製品を小型化することができ、部品間を接続する金属ワイヤ15の長さが短くなることで電気特性が向上する。また、半導体チップ9の実装に高い熱伝導率を持つ導電性接着剤8を用いる。これにより、放熱性と電流容量を確保できる。この結果、製品の品質及び生産性を向上させることができる。なお、アクティブ部品ではない電子部品10は導電性テープ6により実装しても問題は生じない。
1 基板、2 パッド(第1のパッド)、3 パッド(第2のパッド)、6 導電性テープ、7 貫通穴、8 導電性接着剤、9 半導体チップ、10 電子部品、11 下面電極、13 上面電極、15 金属ワイヤ
Claims (2)
- 基板と、
基板上に隣接して設けられた第1及び第2のパッドと、
前記第1及び第2のパッドに貼り付けられ、前記第1のパッドの内側に貫通穴を有する導電性テープと、
前記貫通穴内に塗布され、前記導電性テープよりも高い熱伝導率を持つ導電性接着剤と、
前記導電性接着剤により前記第1のパッド上に実装された半導体チップと、
前記導電性テープにより前記第2のパッド上に実装された電子部品とを備えることを特徴とする半導体装置。 - 前記半導体チップは、チップ下面に設けられた下面電極と、チップ上面に設けられた上面電極とを有し、
前記下面電極は前記導電性接着剤を介して前記第1のパッドに接続され、
前記上面電極はワイヤを介して前記電子部品に接続されていることを特徴とする請求項1に記載の半導体装置。
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JP2013142861A JP2015015442A (ja) | 2013-07-08 | 2013-07-08 | 半導体装置 |
US14/222,723 US9018775B2 (en) | 2013-07-08 | 2014-03-24 | Semiconductor device |
KR1020140082372A KR101574145B1 (ko) | 2013-07-08 | 2014-07-02 | 반도체장치 |
CN201410323364.3A CN104282651A (zh) | 2013-07-08 | 2014-07-08 | 半导体装置 |
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JP2004140170A (ja) * | 2002-10-17 | 2004-05-13 | Hitachi Chem Co Ltd | 接着用熱伝導性フィルム及びそれを用いた半導体装置 |
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JP2825084B2 (ja) * | 1996-08-29 | 1998-11-18 | 日本電気株式会社 | 半導体装置およびその製造方法 |
JP3013786B2 (ja) | 1996-09-11 | 2000-02-28 | 日本電気株式会社 | 半導体装置の製造方法 |
JPH10335567A (ja) * | 1997-05-30 | 1998-12-18 | Mitsubishi Electric Corp | 半導体集積回路装置 |
JP3661444B2 (ja) * | 1998-10-28 | 2005-06-15 | 株式会社ルネサステクノロジ | 半導体装置、半導体ウエハ、半導体モジュールおよび半導体装置の製造方法 |
US6441476B1 (en) * | 2000-10-18 | 2002-08-27 | Seiko Epson Corporation | Flexible tape carrier with external terminals formed on interposers |
JP2001298147A (ja) | 2000-04-18 | 2001-10-26 | Kawasaki Steel Corp | 半導体装置及びその製造方法 |
JP2002076589A (ja) | 2000-08-31 | 2002-03-15 | Hitachi Ltd | 電子装置及びその製造方法 |
JP2004103919A (ja) | 2002-09-11 | 2004-04-02 | Renesas Technology Corp | 半導体ウェーハ及びその製造方法並びに半導体装置 |
JP2004335970A (ja) | 2003-05-12 | 2004-11-25 | Sony Corp | 複合電子部品 |
JP5149881B2 (ja) | 2009-09-30 | 2013-02-20 | ルネサス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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JPH0621244U (ja) * | 1992-08-18 | 1994-03-18 | シャープ株式会社 | 電力半導体装置 |
JP2004140170A (ja) * | 2002-10-17 | 2004-05-13 | Hitachi Chem Co Ltd | 接着用熱伝導性フィルム及びそれを用いた半導体装置 |
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US9018775B2 (en) | 2015-04-28 |
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