JP6314731B2 - 半導体装置及び半導体装置の製造方法 - Google Patents
半導体装置及び半導体装置の製造方法 Download PDFInfo
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- JP6314731B2 JP6314731B2 JP2014157625A JP2014157625A JP6314731B2 JP 6314731 B2 JP6314731 B2 JP 6314731B2 JP 2014157625 A JP2014157625 A JP 2014157625A JP 2014157625 A JP2014157625 A JP 2014157625A JP 6314731 B2 JP6314731 B2 JP 6314731B2
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Description
突出部材108と導電性部材109との剥離、電極パッド107と導電性部材109との剥離、及び、導電性部材109のクラック、が発生し易くなる。
図4〜図11を参照して、実施例1に係る半導体装置1について説明する。図4は、半導体装置(半導体パッケージ)1の断面図である。半導体装置1は、FCBGA型のパッケージ構造を有している。半導体装置1は、パッケージ基板2、半導体チップ3、リッド(蓋)4、受動部品5及びはんだボール6を備えている。パッケージ基板2は、例えば、エポキシ樹脂、ポリイミド樹脂、フェノール樹脂等の樹脂またはアルミナ、ガラスセラミック等のセラミックを含む材料を用いて形成されている。パッケージ基板2上に半導体チップ3が設けられている。半導体チップ3は、例えば、LSI(Large Scale Integration)である。パッケージ基板2は、基板の一例である。半導体チップ3は、半導体素子の
一例である。リッド4は、例えば、銅(Cu)、アルミニウム(Al)等の金属部材を用いて形成されている。パッケージ基板2上に複数の受動部品5が設けられている。受動部品5は、例えば、抵抗、コンデンサ、コイル等を含む。はんだボール6をマザーボード等の配線基板(図示せず)に接合することにより、半導体装置1が配線基板に実装される。
パッド14と各導電性部材31との剥離、各突出部材22と各導電性部材31との剥離、及び、各導電性部材31のクラック、の発生が抑止される。その結果、半導体装置1の信頼性の向上を図ることができる。
図9〜図11は、実施例1に係る半導体装置1の製造工程を示す断面図である。実施例1に係る半導体装置1の製造方法では、まず、半導体チップ3及び複数の電極パッド14等が設けられたパッケージ基板2及びリッド4を準備する。次に、図9に示す工程において、リッド4の各突出部材22に、各導電性部材31を設置する。導電性部材31が導電性ペーストである場合、各突出部材22上に各導電性部材31を塗布する。導電性ペーストの材料として、例えば、はんだペースト、異方性導電性樹脂又は異方性導電性接着剤を用いてもよい。導電性部材31がはんだボールである場合、各突出部材22上に各導電性部材31を載置する。導電性部材31が導電性粘着テープ又は導電性接着シールである場合、各突出部材22上に各導電性部材31を貼付する。
図12〜図23を参照して、実施例2に係る半導体装置1について説明する。実施例2
は、実施例1と比較して、リッド4の各突出部材22に凹部が形成されている。パッケージ基板2、半導体チップ3、受動部品5及びはんだボール6等の他の構成要素については、実施例1と同様であるので、他の構成要素の説明は省略する。また、実施例1に係る半導体装置1及びその製造方法と、実施例2に係る半導体装置1及びその製造方法とを適宜組み合わせてもよい。
図14〜図16は、実施例2に半導体装置1の製造工程を示す断面図である。図14〜図16における断面部分は、実施例1と同様、図5の点線部分に対応する。実施例2に係る半導体装置1の製造方法では、まず、半導体チップ3及び複数の電極パッド14等が設けられたパッケージ基板2及びリッド4を準備する。次に、図14に示す工程において、リッド4の各突出部材22に、各導電性部材31を設置する。導電性部材31が導電性ペ
ーストである場合、各凹部41内に各導電性部材31が埋め込まれるように、各突出部材22上に各導電性部材31を塗布する。各導電性部材31が各凹部41内に埋め込まれることにより、各導電性部材31の位置が固定されるため、各導電性部材31の位置ずれが抑制される。
とも2つの導電性部材31が並んで配置されてもよい。例えば、半導体チップ3の対向する二辺又は半導体チップ3の隣り合う二辺に沿って、少なくとも2つの電極パッド14が並んで配置され、少なくとも2つの突出部材22が並んで配置され、少なくとも2つの導電性部材31が並んで配置されてもよい。複数の電極パッド14の間隔、複数の突出部材22の間隔及び複数の導電性部材31の間隔は、それぞれ均一であってもよい。
実施例1及び実施例2に係る半導体装置1を以下のように変形してもよい。導電性部材31の配置及び間隔、隣接する突出部材22の間のスペースの配置及び間隔について、以下のように変形してもよい。隣接する突出部材22の間に2つ以上のスペースを配置してもよい。例えば、図24に示すように、隣接する突出部材22の間に3つのスペースを配置してもよい。図24は、パッケージ基板2とリッド4の各突出部材22との接合構造を示す拡大断面図である。
り出し、導通確認及び断面確認が行われた。テスターを用いて、リッド4の表面とグランド端子(グランド端子用のはんだボール6)との導通を確認することにより、パッケージ基板2とリッド4との接合部分の導通確認が行われた。導電性部材31の断面を金属顕微鏡で観察することにより、パッケージ基板2とリッド4との接合部分の断面確認が行われた。
(付記1)
基板と、
前記基板上に設けられた半導体素子と、
前記基板上にそれぞれ離間して設けられ、かつ、平面視で前記半導体素子を囲むように配置された複数の電極と、
前記半導体素子を覆う第1金属部材と、
前記第1金属部材に、それぞれ離間して形成され、かつ、平面視で前記第1金属部材の外周部分よりも内側の部分に配置された複数の第2金属部材と、
前記複数の電極と、前記複数の電極に対向する位置に配置された前記複数の第2金属部材との間に設けられ、前記複数の電極及び前記複数の第2金属部材に接合された導電性部材と
を備えることを特徴とする半導体装置。
(付記2)
前記基板が樹脂またはセラミックを含む材料を用いて形成されていることを特徴とする付記1に記載の半導体装置。
(付記3)
平面視で前記複数の第2金属部材を囲むように形成され、かつ、前記第1金属部材の外周部分に沿って形成された第3金属部材を備えることを特徴とする付記1または2の何れかに記載の半導体装置。
(付記4)
前記各第2金属部材の前記各電極と対向する面に凹部が形成されており、
前記各凹部に前記各導電性部材が埋め込まれていることを特徴とする付記1から3の何れか一つに記載の半導体装置。
(付記5)
前記第1金属部材、前記各第2金属部材、前記各電極及び前記各導電性部材は、グランドに接続されることを特徴とする付記1から4の何れか一つに記載の半導体装置。
(付記6)
前記第1金属部材及び前記複数の第2金属部材が同じ金属を含むことを特徴とする付記1から5の何れか一つに記載の半導体装置。
(付記7)
前記基板上に設けられ、かつ、平面視で前記第1金属部材の外周部分と前記複数の第2金属部材との間に配置された受動部品を備えることを特徴とする付記1から6の何れか一つに記載の半導体装置。
(付記8)
前記複数の第2金属部材の少なくとも一部が、所定方向に並んで配置されており、
前記所定方向に並んで配置された前記複数の第2金属部材に形成された前記各凹部の延伸方向は、前記所定方向と直交していることを特徴とする付記4に記載の半導体装置。
(付記9)
前記複数の第2金属部材の間隔が異なることを特徴とする付記1から8の何れか一つに記載の半導体装置。
(付記10)
前記第1金属部材は、前記第1金属部材を貫通する貫通孔を有し、
前記貫通孔は、平面視で隣接する前記複数の第2金属部材の間に配置されていることを特徴とする付記1から9の何れか一つに記載の半導体装置。
(付記11)
半導体素子が設けられ、かつ、複数の離間した電極が平面視で前記半導体素子を囲むように設けられた基板を準備する工程と、
複数の離間した第2金属部材が形成された第1金属部材を準備する工程と、
前記複数の電極及び前記複数の第2金属部材の少なくとも一方に、導電性部材を設置する工程と、
前記第1金属部材が前記半導体素子を覆い、かつ、前記複数の電極と前記複数の第2金属部材とが対向するように、前記基板及び前記第1金属部材を配置する工程と、
前記複数の電極及び前記複数の第2金属部材に前記導電性部材を接合する工程と
を備え、
前記複数の第2金属部材が平面視で前記第1金属部材の外周部分よりも内側の部分に配置されていることを特徴とする半導体装置の製造方法。
(付記12)
前記基板が樹脂またはセラミックを含む材料を用いて形成されていることを特徴とする付記11に記載の半導体装置の製造方法。
(付記13)
平面視で前記複数の第2金属部材を囲むように形成され、かつ、前記第1金属部材の外周部分に沿って形成された第3金属部材を備えることを特徴とする付記11または12の何れかに記載の半導体装置の製造方法。
(付記14)
前記各第2金属部材の前記各電極と対向する面に凹部が形成されており、
前記導電性部材を設置する工程は、前記各凹部に前記導電性部材を埋め込む工程を含むことを特徴とする付記11から13の何れか一つに記載の半導体装置の製造方法。
(付記15)
前記第1金属部材、前記各第2金属部材、前記各電極及び前記各導電性部材は、グランドに接続されることを特徴とする付記11から14の何れか一つに記載の半導体装置の製造方法。
(付記16)
前記第1金属部材及び前記複数の第2金属部材が同じ金属を含むことを特徴とする付記11から15の何れか一つに記載の半導体装置の製造方法。
(付記17)
前記基板上に設けられ、かつ、平面視で前記第1金属部材の外周部分と前記複数の第2金属部材との間に配置された受動部品を備えることを特徴とする付記11から16の何れか一つに記載の半導体装置の製造方法。
(付記18)
前記複数の第2金属部材の少なくとも一部が、所定方向に並んで配置されており、
前記所定方向に並んで配置された前記複数の第2金属部材に形成された前記各凹部の延伸方向は、前記所定方向と直交していることを特徴とする付記14に記載の半導体装置の製造方法。
(付記19)
前記複数の第2金属部材の間隔が異なることを特徴とする付記11から18の何れか一つに記載の半導体装置の製造方法。
(付記20)
前記第1金属部材は、前記第1金属部材を貫通する貫通孔を有し、
前記貫通孔は、平面視で隣接する前記複数の第2金属部材の間に配置されていることを特徴とする付記11から19の何れか一つに記載の半導体装置の製造方法。
2 パッケージ基板
3 半導体チップ
4 リッド
5 受動部品
6 はんだボール
11 はんだボール
12 アンダーフィル樹脂
13 TIM材
14 電極パッド
21 板状部材
22 突出部材
23 側壁部材
31 導電性部材
41 凹部
51 貫通孔
Claims (10)
- 基板と、
前記基板上に設けられた半導体素子と、
前記基板上にそれぞれ離間して設けられ、かつ、平面視で前記半導体素子を囲むように配置された複数の電極と、
前記半導体素子を覆う第1金属部材と、
前記第1金属部材に、それぞれ離間して形成され、かつ、平面視で前記第1金属部材の外周部分よりも内側の部分に配置された複数の第2金属部材と、
前記複数の電極と、前記複数の電極に対向する位置に配置された前記複数の第2金属部材との間に設けられ、前記複数の電極及び前記複数の第2金属部材に接合された導電性部材と
を備えることを特徴とする半導体装置。 - 前記基板が樹脂またはセラミックを含む材料を用いて形成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。
- 平面視で前記複数の第2金属部材を囲むように形成され、かつ、前記第1金属部材の外周部分に沿って形成された第3金属部材を備えることを特徴とする請求項1または2の何れかに記載の半導体装置。
- 前記各第2金属部材の前記各電極と対向する面に凹部が形成されており、
前記各凹部に前記各導電性部材が埋め込まれていることを特徴とする請求項1から3の何れか一項に記載の半導体装置。 - 前記第1金属部材、前記各第2金属部材、前記各電極及び前記各導電性部材は、グランドに接続されることを特徴とする請求項1から4の何れか一項に記載の半導体装置。
- 半導体素子が設けられ、かつ、複数の離間した電極が平面視で前記半導体素子を囲むように設けられた基板を準備する工程と、
複数の離間した第2金属部材が形成された第1金属部材を準備する工程と、
前記複数の電極及び前記複数の第2金属部材の少なくとも一方に、導電性部材を設置する工程と、
前記第1金属部材が前記半導体素子を覆い、かつ、前記複数の電極と前記複数の第2金属部材とが対向するように、前記基板及び前記第1金属部材を配置する工程と、
前記複数の電極及び前記複数の第2金属部材に前記導電性部材を接合する工程と
を備え、
前記複数の第2金属部材が平面視で前記第1金属部材の外周部分よりも内側の部分に配置されていることを特徴とする半導体装置の製造方法。 - 前記基板が樹脂またはセラミックを含む材料を用いて形成されていることを特徴とする請求項6に記載の半導体装置の製造方法。
- 平面視で前記複数の第2金属部材を囲むように形成され、かつ、前記第1金属部材の外周部分に沿って形成された第3金属部材を備えることを特徴とする請求項6または7の何れかに記載の半導体装置の製造方法。
- 前記各第2金属部材の前記各電極と対向する面に凹部が形成されており、
前記導電性部材を設置する工程は、前記各凹部に前記導電性部材を埋め込む工程を含むことを特徴とする請求項6から8の何れか一項に記載の半導体装置の製造方法。 - 前記第1金属部材、前記各第2金属部材、前記各電極及び前記各導電性部材は、グランドに接続されることを特徴とする請求項6から9の何れか一項に記載の半導体装置の製造方法。
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