JP2009135479A - 実装構造体 - Google Patents
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- JP2009135479A JP2009135479A JP2008282666A JP2008282666A JP2009135479A JP 2009135479 A JP2009135479 A JP 2009135479A JP 2008282666 A JP2008282666 A JP 2008282666A JP 2008282666 A JP2008282666 A JP 2008282666A JP 2009135479 A JP2009135479 A JP 2009135479A
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Abstract
【解決手段】基板に、融点が200℃以下の半田または融点が200℃以下の半田を導電性粒子として含んだ導電性接着剤によって、複数の半導体素子が隣接して実装され、隣接して実装された前記半導体素子の間の前記基板に、融点が200℃以下の半田または融点が200℃以下の半田を導電性粒子として含んだ導電性接着剤によって、前記半導体素子を除く電子部品が実装され、複数の前記半導体素子と前記基板の間と、前記電子部品と前記基板との間と、複数の前記半導体素子と前記電子部品との間を、封止樹脂によって一体に封止したことを特徴とする。
【選択図】図1
Description
図4(a)は平面図、図4(b)は図4(a)のA−AA断面図であって、図4(b)では一部が拡大して図示されている。BGA(Ball Grid Array)/LGA(Land Grid Array)などの半導体パッケージ2や半導体パッケージ以外のチップ部品3は、半田5によって基板1に実装されている。
また、前記半田の組成がBi,Inから選ばれる少なくとも1種の金属を含み,残部がSnであることを特徴とする。
また、前記半田の組成は、Cu、Ge及びNiの群から選ばれる少なくとも1種の金属を更に含んでなることを特徴とする。
また、前記基板に隣接して実装された前記半導体素子の中間位置に前記電子部品が実装されていることを特徴とする。
(実施の形態1)
図1(a)(b)は本発明の実施の形態1を示す。
基板1の上には、半導体素子としての半導体パッケージ2a,2bと、半導体素子を除く電子部品としてのチップ部品3が実装されている。チップ部品3は隣接して配置された半導体パッケージ2a,2bの2つの間で、半導体パッケージ2a,2bの幅に入るように実装されている。これら半導体パッケージ2a,2bの2つと、チップ部品3の5つを封止するように、封止樹脂4が設けられている。半導体パッケージ2a,2bとチップ部品3は、半田5で基板1に実装されている。ここでは、チップ部品3が半導体パッケージ2a,2bの中間位置に実装されている。
実装に使用した半田5の組成を下記の表1に示す。残部はBal.として表記した。
また、半導体素子を除く電子部品として、抵抗器のチップ部品3を例に挙げて説明したが、コンデンサやコイルなどでもよい。
図2(a)が半導体素子が1つの場合の平面図、図2(b)がそのA−AAの断面図である。半導体素子としての半導体パッケージ2とチップ部品3が長方形になるように配置されている。その中央に封止樹脂4を塗布する位置を設定する。図1(a)(b)と同様に、均等に封止樹脂4が行きわたる。
本発明の第2の形態においては、図1(a)(b)の実施の形態において、その基板1の厚みの変化をさせて、温度サイクル寿命試験をした。温度サイクル寿命試験は、実施の形態1と同じである。その結果を、下記の表2に示す。この表2では、基板1の厚さが0.25〜0.80mmまで変更した場合の温度サイクル特性を示している。
実施の形態3は、図1(a)(b)における半導体パッケージ2a,2bの間の距離についての実施例である。
上記の各実施の形態では、封止樹脂4で半導体素子としての半導体パッケージ2a,2bの全体と、それ以外の電子部品としてのチップ部品3の全体を覆うことはしなかった。側面を封止するのみで十分強度が保てた。
2a,2b 半導体パッケージ(半導体素子)
3 チップ部品(半導体素子を除く電子部品)
4 封止樹脂
5 半田
Claims (9)
- 基板に、融点が200℃以下の半田または融点が200℃以下の半田を導電性粒子として含んだ導電性ペーストによって、複数の半導体素子が隣接して実装され、
隣接して実装された前記半導体素子の間の前記基板に、融点が200℃以下の半田または融点が200℃以下の半田を導電性粒子として含んだ導電性ペーストによって、前記半導体素子を除く電子部品が実装され、
複数の前記半導体素子と前記基板の間と、前記電子部品と前記基板との間と、複数の前記半導体素子と前記電子部品との間を、封止樹脂によって一体に封止した実装構造体。 - 隣接する半導体素子間が40mm以下である請求項1記載の実装構造体。
- 前記半田の組成がBi,Inから選ばれる少なくとも1種の金属を含み,残部がSnである請求項1記載の実装構造体。
- 前記半田の組成が,50〜70重量%のBi、10〜25重量%のInから選ばれる少なくとも1種の金属及び残部のSnを含んでなる請求項3記載の実装構造体。
- 前記半田の組成は、Cu、Ge及びNiの群から選ばれる少なくとも1種の金属を更に含んでなる請求項4記載の実装構造体。
- 前記半田の組成は、0.1〜1.0重量%のCu、0.001〜0.1重量%Ge及び0.001〜0.1重量%Niの群から選ばれる少なくとも1種の金属を更に含んでなる請求項4記載の実装構造体。
- 前記基板の厚さが,0.5mm以下である請求項1記載の実装構造体。
- 前記基板に隣接して実装された前記半導体素子の中間位置に前記電子部品が実装されている請求項1記載の実装構造体。
- 基板に、導電性接着剤によって、複数の半導体素子が隣接して実装され、
隣接して実装された前記半導体素子の間の前記基板に、導電性接着剤によって、前記半導体素子を除く電子部品が実装され、
複数の前記半導体素子と前記基板の間と、前記電子部品と前記基板との間と、複数の前記半導体素子と前記電子部品との間を、封止樹脂によって一体に封止した実装構造体。
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JP2008282666A JP5202233B2 (ja) | 2007-11-01 | 2008-11-04 | 実装構造体 |
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JP2007284976 | 2007-11-01 | ||
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JP2008282666A JP5202233B2 (ja) | 2007-11-01 | 2008-11-04 | 実装構造体 |
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JP2009135479A true JP2009135479A (ja) | 2009-06-18 |
JP2009135479A5 JP2009135479A5 (ja) | 2011-09-15 |
JP5202233B2 JP5202233B2 (ja) | 2013-06-05 |
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US (1) | US8410377B2 (ja) |
JP (1) | JP5202233B2 (ja) |
KR (1) | KR101011199B1 (ja) |
CN (1) | CN101425511B (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011114759A1 (ja) * | 2010-03-19 | 2011-09-22 | 株式会社安川電機 | 電子部品の実装方法および電子機器 |
JP2012222210A (ja) * | 2011-04-11 | 2012-11-12 | Ngk Spark Plug Co Ltd | 部品実装基板 |
JP2022502265A (ja) * | 2018-10-24 | 2022-01-11 | アルファ・アセンブリー・ソリューションズ・インコーポレイテッドAlpha Assembly Solutions Inc. | ポリマー基板、プリント回路板及び他の接合用途のための低温はんだ付け溶液 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011100718A (ja) * | 2009-10-05 | 2011-05-19 | Yazaki Corp | コネクタ |
US10032692B2 (en) * | 2013-03-12 | 2018-07-24 | Nvidia Corporation | Semiconductor package structure |
EP3499554A1 (de) * | 2017-12-13 | 2019-06-19 | Heraeus Deutschland GmbH & Co. KG | Verfahren zur herstellung einer sandwichanordnung aus zwei bauelementen mit dazwischen befindlichem lot mittels heisspressens unterhalb der schmelztemperatur des lotmaterials einer lotvorform |
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KR20090045016A (ko) | 2009-05-07 |
CN101425511B (zh) | 2014-10-29 |
US20090116205A1 (en) | 2009-05-07 |
JP5202233B2 (ja) | 2013-06-05 |
CN101425511A (zh) | 2009-05-06 |
KR101011199B1 (ko) | 2011-01-26 |
US8410377B2 (en) | 2013-04-02 |
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