JP2018059866A - 半導体装置の製造方法および半導体装置 - Google Patents
半導体装置の製造方法および半導体装置 Download PDFInfo
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- JP2018059866A JP2018059866A JP2016198908A JP2016198908A JP2018059866A JP 2018059866 A JP2018059866 A JP 2018059866A JP 2016198908 A JP2016198908 A JP 2016198908A JP 2016198908 A JP2016198908 A JP 2016198908A JP 2018059866 A JP2018059866 A JP 2018059866A
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Abstract
Description
図1は実施の形態の半導体装置の構造の一例を示す断面図、図2は図1に示す半導体装置のボール電極の圧痕の一例を示す部分側面図である。
図3は図1に示す半導体装置の組み立てから出荷までの工程の一例を示すフロー図である。図3を用いてBGA3の組み立てから出荷までの流れを説明する。
図4は図3に示すフローのバーンイン工程で用いられるソケットの構造の一例を示す断面図、図5は図4に示すソケットに設けられたコンタクトピンの突出部の構造の一例を示す部分斜視図、図6は実施の形態のコンタクトピンによるボール電極との接触状態の一例を示す側面図、図7は図6に示すコンタクトピンによるボール電極との接触状態の一例を示す正面図である。また、図8は図6に示すコンタクトピンによるボール電極との接触状態の一例を示す平面図、図9は図3に示すバーンイン工程におけるバーンイン時の温度変化の一例を示すグラフ、図10は図9に示すバーンイン時のバーンイン開始時点でのピン接触状態の一例を示す側面図、図11は図9に示すバーンイン時のBGA変形後のピン接触状態の一例を示す側面図である。さらに、図12は実施の形態のBGAの温度サイクル回数によるコプラナリティの変化を示すグラフである。
図13は比較例のコンタクトピンの開き方向を示す平面図、図14は実施の形態のソケットにおけるコンタクトピンの開き方向の一例を示す平面図である。
図15は実施の形態のソケットのコンタクトピンにおける第2突出部の先端部の形状の一例を示す平面図である。
図16は実施の形態のソケットのコンタクトピンの配置の一例を示す平面図、図17は実施の形態のソケットのコンタクトピンの配置の一例を示す平面図、図18は実施の形態のソケットのコンタクトピンの配置の一例を示す平面図である。なお、図16〜図18に示す各コンタクトピン11aにおいては、第2突出部11cのみが図示されているが、第1突出部11bも備えていることは言うまでもない。
図19は実施の形態のソケットのコンタクトピンにおける第1突出部の本数の一例を示す平面図、図20は実施の形態のソケットのコンタクトピンにおける第1突出部の本数の一例を示す平面図である。
図21は実施の形態のソケットのコンタクトピンの配置の一例を示す平面図、図22は実施の形態のソケットのコンタクトピンの配置の一例を示す平面図、図23は実施の形態のソケットのコンタクトピンの配置の一例を示す平面図、図24は実施の形態のソケットのコンタクトピンの配置の一例を示す平面図である。さらに、図25は実施の形態のソケットのコンタクトピンの配置の一例を示す平面図、図26は実施の形態のソケットのコンタクトピンの配置の一例を示す平面図である。なお、図21〜図26に示すコンタクトピン11aのうち、第2突出部11cが図示されているコンタクトピン11aについては、第1突出部11bも備えていることは言うまでもない。
図27は実施の形態のソケットのコンタクトピンにおける第1突出部が1山の場合のボール電極との接触状態の一例を示す平面図、図28は図27に示す第1突出部が1山の場合のボール電極との接触状態の一例を示す側面図、図29は図27に示す第1突出部が1山で、かつコンタクトピン3本の場合のピン配置の一例を示す平面図である。なお、図29に示すコンタクトピン11aにおいては、第2突出部11cのみが図示されているが、第1突出部11bも備えていることは言うまでもない。
1a 上面(第1面)
1b 下面(第2面)
2 半導体チップ
3 BGA(半導体装置)
5 半田ボール(ボール電極、外部端子)
5a 第1圧痕
5b 第2圧痕
8 ソケット
11 コンタクト部
11a コンタクトピン(ピン部材)
11b 第1突出部
11c 第2突出部
Claims (15)
- (a)外部端子としてボール電極を備えた半導体装置をバーンインテスト用のソケットに装着する工程、
(b)前記ソケットの導電性のコンタクト部によって前記ボール電極を挟み込んで前記半導体装置のバーンインテストを行う工程、
を有し、
前記ソケットの前記コンタクト部は、前記半導体装置の装着方向に沿って延在する導電性の第1突出部と、前記第1突出部の延在方向に交差する方向に沿って設けられ、かつ前記ボール電極の前記半導体装置の装着側の表面に対向して配置された導電性の第2突出部と、を備え、
前記(b)工程において、前記コンタクト部の前記第1突出部を前記ボール電極に接触させた状態で前記半導体装置の前記バーンインテストを行う、半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記半導体装置は、複数の前記ボール電極が取り付けられた基板を有し、
前記第2突出部は、前記第1突出部と前記ボール電極との接触部より前記基板側に配置されている、半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記第2突出部の前記ボール電極側への突出量は、前記第1突出部の前記ボール電極側への突出量より小さい、半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記(b)工程で、前記バーンインテストの開始時点では、前記第2突出部は、前記ボール電極から離れている、半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記第2突出部の平面視の先端部の形状は、前記ボール電極の円弧に沿った形状である、半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記半導体装置は、複数の前記ボール電極が取り付けられた基板を有し、
前記第2突出部は、前記第1突出部の延在方向における前記基板側の端部の位置に配置されている、半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記ソケットの前記コンタクト部は、前記ボール電極を挟み込む複数のピン部材からなり、
前記複数のピン部材のそれぞれに、2つの前記第1突出部と、1つの前記第2突出部と、が設けられている、半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記ソケットの前記コンタクト部は、対向して配置され、かつそれぞれに2つの前記第1突出部と、1つの前記第2突出部と、が設けられた一対のピン部材からなり、
前記(b)工程で、それぞれの前記ピン部材の前記第1突出部によって前記ボール電極を挟み込んで前記半導体装置の前記バーンインテストを行う、半導体装置の製造方法。 - 請求項8に記載の半導体装置の製造方法において、
複数の前記ボール電極は、格子状に配列され、
前記複数のボール電極の格子状の配列方向に対して、前記配列方向と異なる方向に前記一対のピン部材のそれぞれを開閉する、半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記ソケットの前記コンタクト部は、前記ボール電極を挟み込む複数のピン部材からなり、
前記複数のピン部材の何れかに3つの前記第1突出部が設けられ、
前記3つの前記第1突出部のうち中央に配置された前記第1突出部の突出量は、両端に配置された前記第1突出部の突出量より小さい、半導体装置の製造方法。 - 請求項1に記載の半導体装置の製造方法において、
前記ソケットの前記コンタクト部は、前記ボール電極を挟み込む複数のピン部材からなり、
前記複数のピン部材の何れかに4つの前記第1突出部が設けられ、
前記4つの前記第1突出部のうち中央に配置された2つの前記第1突出部の突出量は、両端に配置された前記第1突出部の突出量より小さい、半導体装置の製造方法。 - 半導体チップと、
第1面と、前記第1面と反対側に位置する第2面と、を備え、前記第1面に前記半導体チップが搭載された基板と、
前記基板の前記第2面に設けられた複数のボール電極と、
を有し、
前記複数のボール電極のうちの何れかの前記ボール電極の表面に、前記基板の厚さ方向に沿って延在する第1圧痕と、前記第1圧痕の延在方向に交差する方向に延在する第2圧痕と、が形成され、
前記第2圧痕は、前記ボール電極の前記基板側の表面に形成されている、半導体装置。 - 請求項12に記載の半導体装置において、
前記第1圧痕の延在方向に沿った長さは、前記第2圧痕の延在方向に沿った長さより長い、半導体装置。 - 請求項12に記載の半導体装置において、
前記第1圧痕の幅方向に沿った長さは、前記第2圧痕の幅方向に沿った長さより短い、半導体装置。 - 請求項12に記載の半導体装置において、
前記複数のボール電極の何れかには、2つの前記第1圧痕と1つの前記第2圧痕とからなる圧痕群が、複数形成されている、半導体装置。
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