JP5130197B2 - 半導体装置、インターポーザ、及びそれらの製造方法、並びに半導体パッケージ - Google Patents
半導体装置、インターポーザ、及びそれらの製造方法、並びに半導体パッケージ Download PDFInfo
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- JP5130197B2 JP5130197B2 JP2008328257A JP2008328257A JP5130197B2 JP 5130197 B2 JP5130197 B2 JP 5130197B2 JP 2008328257 A JP2008328257 A JP 2008328257A JP 2008328257 A JP2008328257 A JP 2008328257A JP 5130197 B2 JP5130197 B2 JP 5130197B2
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Description
[第1の実施の形態に係る半導体パッケージの構造]
始めに第1の実施の形態に係る半導体パッケージの構造について説明する。図2は、第1の実施の形態に係る半導体パッケージを例示する図である。図3は、図2に示す貫通電極部を平面視した図である。図2において、X,X方向は、後述する半導体チップ21の上面21aと平行な面方向、Y,Y方向は、X,X方向に垂直な方向をそれぞれ示している。図3において、図2と同一構成部分には同一符号を付し、その説明を省略する場合がある。
続いて第1の実施の形態に係る半導体パッケージの製造方法について説明する。図4〜図19は、第1の実施の形態に係る半導体パッケージの製造工程を例示する図である。図4〜図19において、図2に示す半導体パッケージ10と同一構成部分には同一符号を付し、その説明を省略する場合がある。
[第2の実施の形態に係る半導体パッケージの構造]
始めに第2の実施の形態に係る半導体パッケージの構造について説明する。図20は、第2の実施の形態に係る半導体パッケージを例示する図である。図20において、X,X方向は、半導体チップ21の上面21aと平行な面方向、Y,Y方向は、X,X方向に垂直な方向をそれぞれ示している。図20において、図2と同一構成部分には同一符号を付し、その説明を省略する場合がある。
続いて第2の実施の形態に係る半導体パッケージの製造方法について説明する。図21〜図24は、第2の実施の形態に係る半導体パッケージの製造工程を例示する図である。図21〜図24において、図3〜図19と同一構成部分には同一符号を付し、その説明を省略する場合がある。なお、半導体装置50以外の部分の製造方法は第1の実施の形態と同様であるため、半導体装置50の製造方法についてのみ説明する。
[第3の実施の形態に係る半導体パッケージの構造]
始めに第3の実施の形態に係る半導体パッケージの構造について説明する。図25は、第3の実施の形態に係る半導体パッケージを例示する図である。図25において、X,X方向は、半導体チップ21の上面21aと平行な面方向、Y,Y方向は、X,X方向に垂直な方向をそれぞれ示している。図25において、図2と同一構成部分には同一符号を付し、その説明を省略する場合がある。
第3の実施の形態に係る半導体パッケージ12は、第1の実施の形態に係る半導体パッケージ10と同様な工程により製造することができるため、製造方法の説明は省略する。なお、接合部47は、図19と同様な工程により形成することができる。
[第4の実施の形態に係る半導体パッケージの構造]
始めに第4の実施の形態に係る半導体パッケージの構造について説明する。図26は、第4の実施の形態に係る半導体パッケージを例示する図である。図26において、X,X方向は、後述する基板91の上面91aと平行な面方向、Y,Y方向は、X,X方向に垂直な方向をそれぞれ示している。図26において、図2と同一構成部分には同一符号を付し、その説明を省略する場合がある。
第5の実施の形態では、貫通電極の他の例を示す。図27〜図29は、貫通電極の他の例を示す図である。図27〜図29において、図2及び図3と同一構成部分には同一符号を付し、その説明を省略する場合がある。
20,50,100 半導体装置
21 半導体チップ
21a 半導体チップ21の上面
21b 半導体チップ21の下面
22,92 絶縁膜
22x,35x,44x,44y,45x,45y,54x,54y 開口部
23a,24b,93a,93b 空間部
24 貫通部
24a 貫通部24の一方の端部
24b 貫通部24の他方の端部
25a,25b,25p,25q,25r,25s,25t 支持部
25c 支持部25aの上面
25d 支持部25bの下面
26 貫通電極
27a,27b シード層
28a,28b めっき膜
30 配線基板
33a 第1絶縁層
33b 第2絶縁層
33c 第3絶縁層
33x 第1ビアホール
33y 第2ビアホール
33z 第3ビアホール
34a 第1配線層
34b 第2配線層
34c 第3配線層
34d 第4配線層
35 ソルダーレジスト層
36 金属層
37,38 プレソルダ
40,47,48,49 接合部
41 貫通孔
42 金属板
44a,44b,45a,45b,54a,54b レジスト膜
58a,58b 突起部
90 インターポーザ
91 基板
91a 基板91の上面
91b 基板91の下面
110 半導体チップ
Claims (13)
- 半導体チップと、
一方の端部が前記半導体チップの一方の面に固定され、他方の端部が前記半導体チップを貫通して、前記半導体チップの他方の面に固定された貫通電極と、を有し、
前記貫通電極は、前記半導体チップに貫通して形成された空間部により、前記半導体チップの壁面と接触しないように前記半導体チップを貫通しており、
前記貫通電極の前記一方の端部及び前記他方の端部は、前記半導体チップの配線層と電気的に接続されており、
前記貫通電極は、前記空間部に配置された貫通部と、
前記貫通部と一体的に構成されると共に、前記一方の面に固定された第1の支持部と、
前記貫通部と一体的に構成されると共に、前記他方の面に固定された第2の支持部と、を備え、
前記空間部内の前記半導体チップの壁面、前記貫通部、前記第1の支持部、及び前記第2の支持部は、平面視において前記貫通部と重複する部分を除き、絶縁膜で覆われている半導体装置。 - 基板と、
一方の端部が前記基板の一方の面に固定され、他方の端部が前記基板を貫通して、前記基板の他方の面に固定された貫通電極と、を有し、
前記貫通電極は、前記基板に貫通して形成された空間部により、前記基板の壁面と接触しないように前記基板を貫通しており、
前記貫通電極の前記一方の端部及び前記他方の端部は、前記基板の配線層と電気的に接続されており、
前記貫通電極は、前記空間部に配置された貫通部と、
前記貫通部と一体的に構成されると共に、前記一方の面に固定された第1の支持部と、
前記貫通部と一体的に構成されると共に、前記他方の面に固定された第2の支持部と、を備え、
前記空間部内の前記基板の壁面、前記貫通部、前記第1の支持部、及び前記第2の支持部は、平面視において前記貫通部と重複する部分を除き、絶縁膜で覆われているインターポーザ。 - 前記第1の支持部及び前記第2の支持部の表面に、金属からなる突起部を有する請求項2記載のインターポーザ。
- 配線基板と、
前記配線基板上に積層された複数個の請求項1記載の半導体装置と、を有し、
前記半導体装置同士は、それぞれに形成された貫通電極を介して、電気的に接続されている半導体パッケージ。 - 配線基板と、
前記配線基板上に形成された請求項2又は3記載のインターポーザと、を有し、
前記インターポーザ上には半導体装置が搭載され、前記配線基板と前記半導体装置とは、前記インターポーザに形成された貫通電極を介して、電気的に接続されている半導体パッケージ。 - 半導体チップに、前記半導体チップの一方の面から他方の面に貫通する貫通孔を形成する貫通孔形成工程と、
前記貫通孔の内部に金属を充填し、貫通電極の一部を構成する貫通部を形成する貫通部形成工程と、
一方の端部が前記一方の面に固定され、他方の端部が前記貫通部の前記一方の面側と接続される、前記貫通電極の一部を構成する第1の支持部、及び、一方の端部が前記他方の面に固定され、他方の端部が前記貫通部の前記他方の面側と接続される、前記貫通電極の一部を構成する第2の支持部を形成する支持部形成工程と、
前記貫通部の側面と接している部分の前記半導体チップを除去し、前記貫通部の周囲に前記貫通部の側面全体が露出する空間部を形成する空間部形成工程と、
平面視において前記貫通部と重複する部分を除き、前記空間部内の前記半導体チップの壁面、前記貫通部、前記第1の支持部、及び前記第2の支持部を覆う絶縁膜を形成する絶縁膜形成工程と、を有する半導体装置の製造方法。 - 基板に、前記基板の一方の面から他方の面に貫通する貫通孔を形成する貫通孔形成工程と、
前記貫通孔の内部に金属を充填し、貫通電極の一部を構成する貫通部を形成する貫通部形成工程と、
一方の端部が前記一方の面に固定され、他方の端部が前記貫通部の前記一方の面側と接続される、前記貫通電極の一部を構成する第1の支持部、及び、一方の端部が前記他方の面に固定され、他方の端部が前記貫通部の前記他方の面側と接続される、前記貫通電極の一部を構成する第2の支持部を形成する支持部形成工程と、
前記貫通部の側面と接している部分の前記基板を除去し、前記貫通部の周囲に前記貫通部の側面全体が露出する空間部を形成する空間部形成工程と、
平面視において前記貫通部と重複する部分を除き、前記空間部内の前記基板の壁面、前記貫通部、前記第1の支持部、及び前記第2の支持部を覆う絶縁膜を形成する絶縁膜形成工程と、を有するインターポーザの製造方法。 - 前記支持部形成工程は、前記一方の面及び前記他方の面に第1のレジスト膜及び第2のレジスト膜を形成する工程と、
前記第1のレジスト膜の前記第1の支持部に対応する位置に第1の開口部を形成し、前記第2のレジスト膜の前記第2の支持部に対応する位置に第2の開口部を形成する工程と、
前記第1の開口部及び前記第2の開口部に、前記第1の支持部及び前記第2の支持部となる金属を充填する工程と、
前記第1のレジスト膜及び前記第2のレジスト膜を除去する工程と、を含む請求項6記載の半導体装置の製造方法。 - 前記空間部形成工程は、前記一方の面及び前記他方の面に第3のレジスト膜及び第4のレジスト膜を形成する工程と、
前記第3のレジスト膜の前記空間部に対応する位置に第3の開口部を形成し、前記第4のレジスト膜の前記空間部に対応する位置に第4の開口部を形成する工程と、
前記第3の開口部を前記一方の面側からエッチングする工程と、
前記第4の開口部を前記他方の面側からエッチングする工程と、
前記第3のレジスト膜及び前記第4のレジスト膜を除去する工程と、を含む請求項6又は8記載の半導体装置の製造方法。 - 更に、前記金属を充填する工程の後に、前記第1の支持部及び前記第2の支持部の表面に、金属からなる突起部を形成する突起部形成工程を有し、
前記突起部形成工程は、
前記第1のレジスト膜及び第1の開口部に充填された金属を覆うように第5のレジスト膜を形成し、前記第2のレジスト膜及び第2の開口部に充填された金属を覆うように第6のレジスト膜を形成する工程と、
前記第5のレジスト膜の前記突起部に対応する位置に第5の開口部を形成し、前記第6のレジスト膜の前記突起部に対応する位置に第6の開口部を形成する工程と、
前記第5の開口部及び前記第6の開口部に、前記突起部となる金属を充填する工程と、
前記第5のレジスト膜及び前記第6のレジスト膜を除去する工程と、を含む請求項8記載の半導体装置の製造方法。 - 前記支持部形成工程は、前記一方の面及び前記他方の面に第1のレジスト膜及び第2のレジスト膜を形成する工程と、
前記第1のレジスト膜の前記第1の支持部に対応する位置に第1の開口部を形成し、前記第2のレジスト膜の前記第2の支持部に対応する位置に第2の開口部を形成する工程と、
前記第1の開口部及び前記第2の開口部に、前記第1の支持部及び前記第2の支持部となる金属を充填する工程と、
前記第1のレジスト膜及び前記第2のレジスト膜を除去する工程と、を含む請求項7記載のインターポーザの製造方法。 - 前記空間部形成工程は、前記一方の面及び前記他方の面に第3のレジスト膜及び第4のレジスト膜を形成する工程と、
前記第3のレジスト膜の前記空間部に対応する位置に第3の開口部を形成し、前記第4のレジスト膜の前記空間部に対応する位置に第4の開口部を形成する工程と、
前記第3の開口部を前記一方の面側からエッチングする工程と、
前記第4の開口部を前記他方の面側からエッチングする工程と、
前記第3のレジスト膜及び前記第4のレジスト膜を除去する工程と、を含む請求項7又は11記載のインターポーザの製造方法。 - 更に、前記金属を充填する工程の後に、前記第1の支持部及び前記第2の支持部の表面に、金属からなる突起部を形成する突起部形成工程を有し、
前記突起部形成工程は、
前記第1のレジスト膜及び第1の開口部に充填された金属を覆うように第5のレジスト膜を形成し、前記第2のレジスト膜及び第2の開口部に充填された金属を覆うように第6のレジスト膜を形成する工程と、
前記第5のレジスト膜の前記突起部に対応する位置に第5の開口部を形成し、前記第6のレジスト膜の前記突起部に対応する位置に第6の開口部を形成する工程と、
前記第5の開口部及び前記第6の開口部に、前記突起部となる金属を充填する工程と、
前記第5のレジスト膜及び前記第6のレジスト膜を除去する工程と、を含む請求項11記載のインターポーザの製造方法。
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