JP2016092067A - 半導体パッケージ - Google Patents
半導体パッケージ Download PDFInfo
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- JP2016092067A JP2016092067A JP2014221446A JP2014221446A JP2016092067A JP 2016092067 A JP2016092067 A JP 2016092067A JP 2014221446 A JP2014221446 A JP 2014221446A JP 2014221446 A JP2014221446 A JP 2014221446A JP 2016092067 A JP2016092067 A JP 2016092067A
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- silicon chip
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- electrical connection
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 128
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 154
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 149
- 239000010703 silicon Substances 0.000 claims abstract description 149
- 239000000758 substrate Substances 0.000 claims abstract description 118
- 229910000679 solder Inorganic materials 0.000 claims abstract description 60
- 230000015654 memory Effects 0.000 claims description 17
- 230000006870 function Effects 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000004048 modification Effects 0.000 description 14
- 238000012986 modification Methods 0.000 description 14
- 230000007774 longterm Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000014509 gene expression Effects 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
Description
本明細書では、いくつかの要素に複数の表現の例を付す。なおこれら表現の例はあくまで例示であり、上記要素が他の表現で表現されることを否定するものではない。また、複数の表現が付されていない要素についても、別の表現で表現されてもよい。
図1及び図2は、第1実施形態に係る半導体パッケージ1が実装される半導体装置2の一例を示す。半導体装置2は、「半導体モジュール」及び「半導体記憶装置」の其々一例である。半導体装置2は、例えばSSD(Solid State Drive)であるが、これに限られるものではない。
なおここでは、説明の便宜上、1つのパッケージ内に1つのシリコンチップが封止されるものを取り上げる。なお以下に説明する構成は、1つのパッケージ内に複数のシリコンチップが封止されるものについても適用することができる。
図6は、半導体パッケージ1の発熱時の挙動の一例を示す。半導体パッケージ1は、動作時に発熱する。このため、半導体パッケージ1の基板41は、熱膨張によって基板41の厚さ方向に反ることがある。
図7は、第1実施形態の第1変形例に係る半導体パッケージ1を示す。この変形例では、基板41の厚さ方向で支持部43に重なる領域にもはんだ接合部61が設けられる。このはんだ接合部61は、例えば、グランド強化のための追加的なはんだ接合部、または接合強化を目的としたダミー用のはんだ接合部である。このような構成によれば、支持部43の下方を利用してグランド強化や接合強化を図ることができる。なお、はんだ接合部61は、信号用または電源用のはんだ接合部でもよい。
図8は、第1実施形態の第2変形例に係る半導体パッケージ1を示す。この変形例では、支持部43は、シリコンチップ42と一体に形成される。換言すれば、支持部43は、シリコンチップ42の第1面42aに設けられた突出部である。このような構成によっても、上記第1実施形態と略同じ機能を実現することができる。
図9は、第1実施形態の第3変形例に係る半導体パッケージ1を示す。この変形例では、支持部43は、回路基板11と一体に設けられる。換言すれば、支持部43は、基板41の第2面41bに設けられた突出部である。支持部43は、例えば基板41の表面にレジストを厚めに設けることで形成されてもよい。このような構成によっても、上記第1実施形態と略同じ機能を実現することができる。
図10及び図11は、第2実施形態に係る半導体パッケージ1を示す。本実施形態では、支持部43は、シリコンチップ42と基板41の第2面41bとを電気的に接続する中継部材としての機能を有する。
図12は、第3実施形態に係る半導体パッケージ1を示す。本実施形態では、前記シリコンチップ42は、第1シリコンチップ42である。支持部43は、コントローラ、メモリ、またはデータ転送部として機能する第2シリコンチップ81である。換言すれば、第1シリコンチップ42は、該第1シリコンチップ42よりも小さな第2シリコンチップ81の上に積層されて基板41の第2面41bから離されている。
図13は、第4実施形態に係る半導体パッケージ1を示す。本実施形態では、半導体パッケージ1は、複数の第1シリコンチップ42を有する。複数の第1シリコンチップ42は、例えば半導体メモリ22である。複数の第1シリコンチップ42は、互いにずらされるとともに、基板41の厚さ方向に積層される。第1シリコンチップ42の第2面42bには、ボンディングワイヤ58が接続される第2パッド57が設けられる。
図14は、第5実施形態に係る半導体パッケージ1を示す。なお図14は、説明の便宜上、モールド44を取り除いた状態での半導体パッケージ1を示す。本実施形態では、基板41、シリコンチップ42、及び支持部43の各々は、矩形状に形成される。図14に示すように、支持部43は、該支持部43の辺91が基板41の角部92を向くように基板41に対して斜めに配置される。支持部43は、基板41対して例えば略45度傾けて(回転させて)配置される。
図15は、第6実施形態に係る半導体パッケージ1を示す。本実施形態では、支持部43は、シリコンチップ42の中央部51の下方を避けるように、複数の支持片101,102に分かれて設けられる。支持片101,102は、シリコンチップ42の周端部52を支持する。なお、支持部43は、上記に代えて、シリコンチップ42の中央部51の下方を避けるような枠状に形成されてもよい。
図16及び図17は、第7実施形態に係る半導体パッケージ1を示す。図17は、説明の便宜上、モールド44を取り除いた状態での半導体パッケージ1を示す。本実施形態では、回路基板11は、さらに別の回路基板111に固定される。回路基板11は、例えばねじのような複数の固定具112によって回路基板111に固定される。複数の固定具112は、一つの第1固定具112aと、残りの第2固定具112bとを含む。第1固定具112aは、複数の固定具112のなかで半導体パッケージ1に最も近くに位置する。
図18は、第8実施形態に係る半導体パッケージ1を示す。本実施形態では、シリコンチップ42は、固定部54によって基板41の第2面41bに直接に取り付けられる。固定部54は、シリコンチップ42の中央部51と基板41の第2面41bとの間に設けられ、シリコンチップ42の中央部51と基板41の第2面41bとを固定する。一方で、固定部54は、シリコンチップ42の周端部52と基板41の第2面41bとの間には位置しない。すなわち、シリコンチップ42の周端部52は、基板41の第2面41bに固定されていない。固定部54は、シリコンチップ42よりも小さな外形を有する。
Claims (10)
- 第1面と、該第1面とは反対側に位置した第2面とを有した基板と、
前記基板の第1面に設けられた複数のはんだ接合部と、
前記基板の第2面に面したシリコンチップと、
前記基板の第2面と前記シリコンチップとの間に設けられて前記シリコンチップを前記基板の第2面から離れた位置に支持するとともに、前記シリコンチップよりも小さな外形を有して前記複数のはんだ接合部のなかで前記シリコンチップが覆うはんだ接合部の少なくとも一つを覆わないシリコン製の支持部と、
前記シリコンチップ及び前記支持部を一体に覆うモールドと、
を備えた半導体パッケージ。 - 請求項1の記載において、
前記複数のはんだ接合部は、前記基板の厚さ方向で前記支持部に重なる領域を外して設けられた半導体パッケージ。 - 請求項1または請求項2の記載において、
前記支持部は、前記シリコンチップを前記基板の第2面に電気的に接続する中継配線を有した半導体パッケージ。 - 請求項3の記載において、
前記シリコンチップと前記支持部との間に設けられ、前記中継配線に接続された複数の第1電気接続部と、
前記支持部と前記基板の第2面との間に設けられ、前記中継配線に接続された複数の第2電気接続部と、をさらに備え、
前記第2電気接続部の各々は、前記第1電気接続部の各々よりも大きい半導体パッケージ。 - 請求項4の記載において、
前記第2電気接続部の数は、前記第1電気接続部の数よりも少ない半導体パッケージ。 - 請求項1乃至請求項5のいずれかの記載において、
前記基板の第2面と前記支持部の側面との間に設けられた補強部を有した半導体パッケージ。 - 請求項1乃至請求項6のいずれかの記載において、
前記基板、前記シリコンチップ、及び前記支持部の各々は矩形状に形成され、
前記支持部は、平面視において該支持部の辺が前記基板の角部を向くように前記基板に対して斜めに配置された半導体パッケージ。 - 請求項1または請求項2の記載において、
前記シリコンチップは、第1シリコンチップであり、
前記支持部は、コントローラ、メモリ、またはデータ転送部として機能する第2シリコンチップである半導体パッケージ。 - 請求項8の記載において、
前記第1シリコンチップは、前記第2シリコンチップに面する位置に、該第1シリコンチップを貫通したビアが設けられ、
前記第2シリコンチップは、前記ビアを介して前記基板に電気的に接続された半導体パッケージ。 - 第1面と、該第1面とは反対側に位置した第2面とを有した基板と、
前記基板の第1面に設けられた複数のはんだ接合部と、
前記基板の第2面に面したシリコンチップと、
前記シリコンチップの中央部と前記基板の第2面とを固定するとともに、前記シリコンチップの周端部と前記基板の第2面との間には位置しない固定部と、
を備えた半導体パッケージ。
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