JP2015508235A - 多層電子機器アセンブリおよび3次元モジュールに電気回路素子を埋設する方法 - Google Patents
多層電子機器アセンブリおよび3次元モジュールに電気回路素子を埋設する方法 Download PDFInfo
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Abstract
Description
以下に記載する説明では、開示したさまざまな実施形態を深く理解していただくべく具体的且つ詳細な内容を記載する。しかし、当業者であれば、記載した具体的且つ詳細な内容のうち1または複数を採用することなく、または、他の方法、構成要素、材料等を利用して、実施形態を実施し得ることを認めるであろう。また、ディスクリート電子素子等のディスクリート電気素子を含む電気回路に対応付けられている公知の構造、および/または、絶縁性の基板および導電性の配線およびビアを含むプリント配線基板は、実施形態の説明を不必要に曖昧にすることを避けるべく詳細な説明または図示を省略している。
図1Aおよび図1Bは、一例に係る、デバイスに組み込まれている多層電子機器アセンブリを示す簡略図である。図1Aは、デバイスの主なサブアセンブリを示す分解図である。サブアセンブリは、多層電子機器アセンブリ10、ベース基板20およびヒートシンク30を含む。
多層モジュール内に3次元方向にディスクリート電気回路素子を埋設するための処理を図3Aから図3F、図4および図5を参照しつつ説明する。
Claims (32)
- 積層された複数の基板層であって、前記複数の基板層のそれぞれが前記複数の基板層のうち少なくとも隣接する基板層に融着されている複数の基板層と、
前記複数の基板層のうち第1の基板層に接合されている第1のディスクリート電気回路素子と、
前記第1のディスクリート電気回路素子と前記第1の基板層との間に介在させている接合材料であって、前記接合材料が流動可能となるリフロー温度が前記複数の基板層の融着温度よりも高い接合材料と
を備える多層電子機器アセンブリ。 - 前記複数の基板層のうち第2の基板層に接合されている第2のディスクリート電気回路素子をさらに備える請求項1に記載の多層電子機器アセンブリ。
- 前記複数の基板層は、第1の方向に積層されており、前記第1のディスクリート電気回路素子は、前記第1の方向において前記第2のディスクリート電気回路素子と重なっている請求項2に記載の多層電子機器アセンブリ。
- 前記複数の基板層は、第1の方向に積層されており、前記第1のディスクリート電気回路素子は、積層された前記複数の基板層のうち複数の隣接する層の間に配置されている請求項1から3の何れか1項に記載の多層電子機器アセンブリ。
- 前記複数の基板層は、フッ素重合体複合材を含む
請求項1から4の何れか1項に記載の多層電子機器アセンブリ。 - 前記接合材料は、前記第1のディスクリート電気回路素子と前記第1の基板層とを接合するべく前記接合材料が流動可能となる初期フロー温度を持つ少なくとも一の材料で形成され、前記初期フロー温度は前記リフロー温度よりも低い請求項1から5の何れか1項に記載の多層電子機器アセンブリ。
- 前記接合材料は、前記リフロー温度に到達する直前は固体である請求項1から6の何れか1項に記載の多層電子機器アセンブリ。
- 前記接合材料は、ナノシルバー焼結ハンダである請求項1から7の何れか1項に記載の多層電子機器アセンブリ。
- 前記接合材料は、過渡液相接合合金である請求項1から7の何れか1項記載の多層電子機器アセンブリ。
- 前記第1のディスクリート電気回路素子は、受動型ディスクリート抵抗器、キャパシタ、磁気デバイスおよび能動型半導体デバイスのうち1つである請求項1から9の何れか1項に記載の多層電子機器アセンブリ。
- 融点が第1の温度である第1の材料で形成される3次元単一ブロックと、
前記3次元単一ブロックに埋設されている複数のディスクリート電気回路素子と
を備え、
前記複数のディスクリート電気回路素子のそれぞれは、第2の材料によって前記3次元単一ブロックに接合されており、前記第2の材料は、前記第2の材料が流動可能となるリフロー温度が、前記第1の温度より高い第2の温度である多層電子機器モジュール。 - 前記3次元単一ブロックは、上面、底面および複数の側面によって画定されている外部表面を含み、
前記第1の材料は、前記複数のディスクリート電気回路素子のうち少なくとも第1のディスクリート電気回路素子を完全に取り囲み、前記第1の材料が、前記複数のディスクリート電気回路素子のうち前記第1のディスクリート電気回路素子の全ての側面と、前記3次元単一ブロックの前記外部表面上の任意の点との間に配置される請求項11に記載の多層電子機器モジュール。 - 前記第1の材料は、前記複数のディスクリート電気回路素子のうち前記第1のディスクリート電気回路素子と直接接触していない請求項12に記載の多層電子機器モジュール。
- 前記複数のディスクリート電気回路素子は、第1のディスクリート電気回路素子、第2のディスクリート電気回路素子、および、第3のディスクリート電気回路素子を含み、前記第1のディスクリート電気回路素子は、第1の方向において前記第2のディスクリート電気回路素子と重なっており、前記第1のディスクリート電気回路素子は、前記第1の方向と垂直な第2の方向において、前記第3のディスクリート電気回路素子と重なっている請求項11から13の何れか1項に記載の多層電子機器モジュール。
- 前記第1の材料は、フッ素重合体複合材である請求項11から14の何れか1項に記載の多層電子機器モジュール。
- 前記第2の材料は、前記複数のディスクリート電気回路素子と第1の層とを接合するべく、前記第2の材料が流動可能となる初期フロー温度を持つ少なくとも1つの材料で形成されており、前記初期フロー温度は、前記第2の温度よりも低い請求項11から15の何れか1項に記載の多層電子機器モジュール。
- 前記第2の材料は、前記第2の温度に到達する直前は固体である請求項11から16の何れか1項に記載の多層電子機器モジュール。
- 前記第2の材料はナノシルバー焼結ハンダである請求項11から17の何れか1項に記載の多層電子機器モジュール。
- 前記第1の材料は、過渡液相接合合金である請求項11から17の何れか1項に記載の多層電子機器モジュール。
- 前記複数のディスクリート電気回路素子は、受動型ディスクリート抵抗器、キャパシタ、磁気デバイスおよび能動型半導体デバイスから成る群から選択される
請求項11から19の何れか1項に記載の多層電子機器モジュール。 - パワー半導体ダイが接合されている一次基板と、
前記一次基板上に積層されており、互いに融着されている複数の二次基板と、
前記複数の二次基板のうち、前記一次基板から最も離れた位置にある二次基板の外部表面に取着されている能動型電子素子と
を備え、
第1のディスクリート電気回路素子は、前記複数の二次基板の融着温度よりも高い第1の融点を持つ第1の材料で、前記複数の二次基板のうち第1の基板に接合されており、
第2のディスクリート電気回路素子は、前記複数の二次基板の前記融着温度よりも高い第2の融点を持つ第2の材料で前記複数の二次基板のうち第2の基板に接合されている多機能モジュール。 - 前記第1の材料は、前記第2の材料と同じである請求項21に記載の多機能モジュール。
- 多層モジュール内に複数のディスクリート電気回路素子を埋設する方法であって、
最初は第1の温度において流動可能である第1の接合材料を用いて第1のディスクリート電気回路素子を第1の基板に取着する段階であって、前記第1の接合材料において状態遷移を発生させ、前記第1の接合材料が硬化すると、前記第1の接合材料は、前記第1の温度よりも高い第2の温度に到達するまでは流動可能状態には戻らない段階と、
前記第1の接合材料を用いて第2のディスクリート電気回路素子を第2の基板に取着する段階と、
前記第1の基板を前記第2の基板に融着する段階と
を備え、
前記第1の温度は、前記第1の基板の融着温度よりも低く、前記第2の温度は、前記第1の基板の前記融着温度よりも高い
多層モジュール内に複数のディスクリート電気回路素子を埋設する方法。 - 前記第1のディスクリート電気回路素子を前記第1の基板に取着する段階は、前記第1のディスクリート電気回路素子を前記第1の基板にナノシルバー焼結する段階を有する請求項22に記載の多層モジュール内に複数のディスクリート電気回路素子を埋設する方法。
- 前記第1のディスクリート電気回路素子を前記第1の基板に取着する段階は、前記第1のディスクリート電気回路素子を前記第1の基板に過渡液相接合する段階を有する請求項22に記載の多層モジュール内に複数のディスクリート電気回路素子を埋設する方法。
- 第1の方向に積層されている複数の基板層であって、前記複数の基板層のそれぞれは、前記複数の基板層のうち少なくとも隣接する基板層に接合されている複数の基板層と、
接合材料であって、前記接合材料が最初に流動可能となる初期転移温度と、前記接合材料が、最初に流動可能となった後に硬化した後に流動可能となる後続転移温度を持つ接合材料と、
前記接合材料を用いて前記複数の基板層のうち第1の基板層に接合されている第1のディスクリート電気回路素子と、
前記接合材料を用いて前記複数の基板層のうち第2の基板層に接合されている第2のディスクリート電気回路素子と
を備え、
前記初期転移温度は前記後続転移温度よりも低く、
前記第2のディスクリート電気回路素子は、前記第1の方向において前記第1のディスクリート電気回路素子と重なっている
多層電子機器アセンブリ。 - 前記接合材料は、前記後続転移温度に到達する直前は固体である請求項26に記載の多層電子機器アセンブリ。
- 前記複数の基板層は、エポキシファイバーグラスおよびポリアミドのうち少なくとも一方を含む請求項26または27に記載の多層電子機器アセンブリ。
- 前記接合材料は、ナノシルバー焼結ハンダである請求項26から28の何れか1項に記載の多層電子機器アセンブリ。
- 前記接合材料は、過渡液相接合合金である請求項26から28の何れか1項に記載の多層電子機器アセンブリ。
- 前記第1のディスクリート電気回路素子は、受動型ディスクリート抵抗器、キャパシタ、磁気デバイスおよび能動型半導体デバイスのうちの1つである請求項26から30の何れか1項に記載の多層電子機器アセンブリ。
- 多層モジュール内に複数のディスクリート電気回路素子を埋設する方法であって、
最初は第1の温度において流動可能である接合材料を用いて第1のディスクリート電気回路素子を第1の基板に取着する段階であって、前記接合材料において状態遷移を発生させることで、前記接合材料が硬化した後、前記接合材料は、前記第1の温度よりも高い第2の温度に到達するまでは流動可能状態には戻らないようにする段階と、
第2の基板を前記第1の基板に取着する段階と、
前記第1の温度において前記接合材料を用いて第2のディスクリート電気回路素子を前記第2の基板に取着する段階と
を備える多層モジュール内に複数のディスクリート電気回路素子を埋設する方法。
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US20180146547A1 (en) | 2018-05-24 |
IN2014DN07180A (ja) | 2015-04-24 |
HK1203739A1 (en) | 2015-10-30 |
US20130201631A1 (en) | 2013-08-08 |
US9888568B2 (en) | 2018-02-06 |
KR102103196B1 (ko) | 2020-04-22 |
US11172572B2 (en) | 2021-11-09 |
HK1204204A1 (en) | 2015-11-06 |
KR20140125417A (ko) | 2014-10-28 |
JP6257047B2 (ja) | 2018-01-10 |
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