JP2009049349A - 半導体パッケージ用貫通電極及びこれを有する半導体パッケージ - Google Patents
半導体パッケージ用貫通電極及びこれを有する半導体パッケージ Download PDFInfo
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Abstract
【解決手段】 半導体パッケージ用貫通電極は、半導体チップを貫通して、内部にリセス部が形成された第1の電極、及び前記リセス部内に配置された第2の電極を含む。半導体パッケージは、回路部を有する半導体チップ本体及び前記回路部と連結されたボンディングパッドを有する半導体チップ、並びに、前記ボンディングパッド及び前記ボンディングパッドと対応する前記半導体チップ本体を貫通し、内部にリセス部を有する第1の電極、及び前記リセス部の内部に配置された第2の電極を有する貫通電極を含む。
【選択図】 図1
Description
半導体パッケージ用貫通電極の前記第2の電極は、鉛を含むソルダである。
半導体パッケージの前記絶縁膜は、前記第2の電極を露出する開口を含む。
半導体パッケージの再配線はシード金属パターンを更に含む。
図1は、本発明の一実施形態による半導体パッケージ用貫通電極を示した断面図である。
第1の電極122は、例えば第1の硬度を有する第1の金属を含むことができ、第2の電極124は、第1の電極122の第1の硬度よりも相対的に低い第2の硬度を有する第2の金属を含むことができる。第1の硬度を有する第1の電極122として使用できる物質の例としては、銅、アルミニウム、アルミニウム合金及び金属合金などを挙げることができる。第2の電極124として使用できる物質の例としては、鉛を含むソルダなどを挙げることができる。
半導体チップ本体112は、第1の面(112a)及び第1の面(112a)に対向する第2の面(112b)を有する。
第2の電極124は、第1の電極122のリセス部121内に配置される。
貫通電極120の第1の電極122は、ボンディングパッド114及び半導体チップ本体112を貫通する。第1の電極122はリセス部121を有し、リセス部121を有する第1の電極122は、例えばパイプ状を有する。第1の電極122の一部は、ボンディングパッド114と電気的に直接接続される。第1の電極122の一部は、保護膜パターン115によって露出されたボンディングパッド114を覆う。
本実施形態では、露出された第1の電極122及び第2の電極124の端部は、例えば保護膜パターン115と実質的に同一の平面上に配置され、第1の電極122は、保護膜パターン115によって露出されたボンディングパッド114の上面を覆う。
図9に示した半導体パッケージは、特に、少なくとも2個の半導体パッケージを積層して積層半導体パッケージを製造することに適する。
半導体チップ本体112は、第1の面(112a)及び第1の面(112a)に対向する第2の面(112b)を有する。
第1の電極122は、ボンディングパッド114及び半導体チップ本体112を貫通する。第1の電極122はリセス部121を有し、リセス部121を有する第1の電極122は、一側端部が閉じ、一側端部に対向する他側端部が開口されたパイプ状を有する。第1の電極122の一部はボンディングパッド114と電気的に直接接続される。
第1の電極122は、例えば第1の硬度を有する第1の金属を含むことができ、第2の電極124は、第1の電極122の第1の硬度よりも相対的に低い第2の硬度を有する第2の金属を含むことができる。第1の電極122として使用できる物質の例としては、銅、アルミニウム、アルミニウム合金及び金属合金などを挙げることができる。第2の電極124として使用できる物質の例としては、鉛を含むソルダなどを挙げることができる。
図10を参照すれば、半導体チップ本体112の第1の面(112a)を覆う絶縁膜130は、貫通電極120の第2の電極124を露出する開口132を有する。本実施形態では、絶縁膜130の開口132は、選択的に貫通電極120の第2の電極124を露出できる。これとは違って、絶縁膜130の開口132は、第2の電極124だけでなく、第1の電極122も一緒に露出することができる。
図11を参照すれば、積層半導体パッケージ199は、下部半導体パッケージ180、上部半導体パッケージ190及び基板150を含む。これに加えて、積層半導体パッケージ199は、ダミーチップサポート部材157を含むことができる。
第1の電極184は、例えば第1の硬度を有する第1の金属を含むことができ、第2の電極186は、第1の電極184の第1の硬度よりも相対的に低い第2の硬度を有する第2の金属を含むことができる。
上部半導体パッケージ190は、上部半導体チップ本体191及びボンディングパッド192を含む。
第1の電極194は、ボンディングパッド192、及び上部半導体チップ本体191を貫通する。第1の電極194はリセス部を有し、リセス部を有する第1の電極194はパイプ状を有する。第1の電極194の一部はボンディングパッド192を覆う。
第1の電極194は、例えば第1の硬度を有する第1の金属を含むことができ、第2の電極196は、第1の電極194の第1の硬度よりも相対的に低い第2の硬度を有する第2の金属を含むことができる。
半導体チップ本体212は、第1の面(212a)、及び第1の面(212a)に対向する第2の面(212b)を有する。
第1の電極222は、例えば第1の硬度を有する第1の金属を含むことができ、第2の電極224は、第1の電極222の第1の硬度よりも相対的に低い第2の硬度を有する第2の金属を含むことができる。
再配線230として使用できる物質の例としては、銅、アルミニウム、金及び金属合金などを挙げることができる。
図15を参照すれば、半導体パッケージ100の半導体チップ本体212の第1の面(212a)上には、貫通電極220の第2の電極224を選択的に露出する開口238を更に含むことができる。
図17を参照すれば、半導体パッケージ200は、下部半導体パッケージ280、上部半導体パッケージ290、及び基板300を含む。これに加えて、半導体パッケージ200は、ダミーチップサポート部材357を更に含むことができる。
下部貫通電極285は、第1の電極284及び第2の電極286を含む。
第1の電極284は、例えば第1の硬度を有する第1の金属を含むことができ、第2の電極286は、第1の電極284の第1の硬度よりも相対的に低い第2の硬度を有する第2の金属を含むことができる。
上部半導体パッケージ290は、上部半導体チップ本体291及びボンディングパッド292を含む。
上部貫通電極295は、第1の電極294及び第2の電極296を含む。
第1の電極294は、例えば第1の硬度を有する第1の金属を含むことができ、第2の電極296は、第1の電極294の第1の硬度よりも相対的に低い第2の硬度を有する第2の金属を含むことができる。
10 貫通電極
11 第1の電極
11a 第1の拡張部
12 リセス部
14 第2の電極
14a 第2の拡張部
Claims (39)
- 半導体チップを貫通して、内部にリセス部が形成された第1の電極、及び
前記リセス部内に配置された第2の電極を含むことを特徴とする半導体パッケージ用貫通電極。 - 前記第1の電極は、第1の硬度を有する第1の金属を含み、前記第2の電極は前記第1の硬度よりも低い第2の硬度を有する第2の金属を含むことを特徴とする請求項1に記載の半導体パッケージ用貫通電極。
- 前記第1の電極は、第1の溶融点を有する第1の金属を含み、前記第2の電極は前記第1の溶融点よりも低い第2の溶融点を有する第2の金属を含むことを特徴とする請求項1に記載の半導体パッケージ用貫通電極。
- 前記第1の電極は、銅、アルミニウム、アルミニウム合金及び金属合金から成る群から選択される何れか一つを含むことを特徴とする請求項1に記載の半導体パッケージ用貫通電極。
- 前記第2の電極は、鉛を含むソルダであることを特徴とする請求項1に記載の半導体パッケージ用貫通電極。
- 前記第1の電極の長さは、前記半導体チップの厚さよりも長いことを特徴とする請求項1に記載の半導体パッケージ用貫通電極。
- 前記第1の電極は、一側端部が閉じたパイプ状を有することを特徴とする請求項1に記載の半導体パッケージ用貫通電極。
- 前記第1の電極は、前記一側端部に対向する他側端部に、拡張された第1の拡張部を有し、前記第2の電極は、前記第1の拡張部と対応して拡張された第2の拡張部を有することを特徴とする請求項1に記載の半導体パッケージ用貫通電極。
- 前記第1の電極の外側面にはシード金属層が形成されることを特徴とする請求項1に記載の半導体パッケージ用貫通電極。
- 回路部を有する半導体チップ本体及び前記回路部と連結されたボンディングパッドを有する半導体チップ、並びに
前記ボンディングパッド及び前記ボンディングパッドと対応する前記半導体チップ本体を貫通し、内部にリセス部を有する第1の電極、及び前記リセス部の内部に配置された第2の電極を有する貫通電極を含むことを特徴とする半導体パッケージ。 - 前記第1の電極は、第1の硬度を有する第1の金属を含み、前記第2の電極は、前記第1の硬度よりも低い第2の硬度を有する第2の金属を含むことを特徴とする請求項10に記載の半導体パッケージ。
- 前記第1の電極は、第1の溶融点を有する第1の金属を含み、前記第2の電極は、前記第1の溶融点よりも低い第2の溶融点を有する第2の金属を含むことを特徴とする請求項10に記載の半導体パッケージ。
- 前記第1の電極は、銅、アルミニウム、アルミニウム合金及び金属合金から成る群から選択される何れか一つを含み、前記第2の電極は、鉛を含むソルダであることを特徴とする請求項10に記載の半導体パッケージ。
- 前記第1の電極の長さは、前記半導体チップ本体の厚さよりも長いことを特徴とする請求項10に記載の半導体パッケージ。
- 前記第1の電極は、前記ボンディングパッドと電気的に接続され、端部が開口されたパイプ状を有することを特徴とする請求項10に記載の半導体パッケージ。
- 前記第1の電極の前記端部は、拡張された第1の拡張部を有し、前記第2の電極は、前記第1の拡張部と対応して拡張された第2の拡張部を有することを特徴とする請求項15に記載の半導体パッケージ。
- 前記ボンディングパッドは、前記半導体チップ本体の上面の中央部に配置されることを特徴とする請求項10に記載の半導体パッケージ。
- 前記ボンディングパッドは、前記半導体チップ本体の上面のエッジに配置されることを特徴とする請求項10に記載の半導体パッケージ。
- 前記半導体チップは、前記半導体チップ本体上に配置されて前記ボンディングパッド、前記第1の電極及び前記第2の電極を覆う絶縁膜を含むことを特徴とする請求項10に記載の半導体パッケージ。
- 前記絶縁膜は、前記第2の電極を露出する開口を含むことを特徴とする請求項19に記載の半導体パッケージ。
- 前記半導体チップ本体は、前記回路部をリペアするためのヒューズ、及び前記ヒューズを覆って絶縁するヒューズ絶縁部材を含むことを特徴とする請求項10に記載の半導体パッケージ。
- 前記貫通電極と接続される接続パッド、前記接続パッド上に配置されたソルダ層を有する基板、及び前記基板と前記半導体チップ本体の間に介在するアンダーフィル部材を更に含むことを特徴とする請求項10に記載の半導体パッケージ。
- 前記基板及び前記半導体チップ本体の間には、前記半導体チップ本体を安定的にサポートするためのダミーチップサポート部材が介在することを特徴とする請求項22に記載の半導体パッケージ。
- 前記ダミーチップサポート部材は、ダミーソルダボール、ダミーバンプ及び閉ループ状を有するダミーサポート部材のうち何れか一つであることを特徴とする請求項23に記載の半導体パッケージ。
- 回路部を有する半導体チップ本体、及び前記回路部と連結され、前記半導体チップ本体の中央に配置されたボンディングパッドを有する半導体チップ、
前記半導体チップ本体のエッジを貫通し、内部にリセス部を有する第1の電極、及び前記リセス部の内部に配置された第2の電極を有する貫通電極、並びに
前記ボンディングパッド及び前記貫通電極を電気的に連結する再配線を含むことを特徴とする半導体パッケージ。 - 前記再配線は、前記第2の電極を露出する開口を有することを特徴とする請求項25に記載の半導体パッケージ。
- 前記第1の電極は、第1の硬度を有する第1の金属を含み、前記第2の電極は、前記第1の硬度よりも低い第2の硬度を有する第2の金属を含むことを特徴とする請求項25に記載の半導体パッケージ。
- 前記第1の電極は、第1の溶融点を有する第1の金属を含み、前記第2の電極は、前記第1の溶融点よりも低い第2の溶融点を有する第2の金属を含むことを特徴とする請求項25に記載の半導体パッケージ。
- 前記第1の電極は、銅、アルミニウム、アルミニウム合金及び金属合金から成る群から選択される何れか一つを含み、前記第2の電極は、鉛を含むソルダであることを特徴とする請求項25に記載の半導体パッケージ。
- 前記第1の電極の長さは、前記半導体チップ本体の厚さよりも長いことを特徴とする請求項25に記載の半導体パッケージ。
- 前記第1の電極は、前記半導体チップ本体の表面部分で拡張された第1の拡張部を有し、前記第2の電極は、前記第1の拡張部と対応して拡張された第2の拡張部を有することを特徴とする請求項25に記載の半導体パッケージ。
- 前記半導体チップは、前記半導体チップ本体上に配置されて、前記ボンディングパッド、前記第1の電極及び前記第2の電極を覆う絶縁膜を含むことを特徴とする請求項25に記載の半導体パッケージ。
- 前記絶縁膜は、前記第2の電極を露出する開口を有することを特徴とする請求項32に記載の半導体パッケージ。
- 前記再配線はシード金属パターンを含むことを特徴とする請求項25に記載の半導体パッケージ。
- 前記再配線及び前記ボンディングパッドの間には、前記第1の電極と同一の物質を含む連結パターンが配置されることを特徴とする請求項25に記載の半導体パッケージ。
- 前記半導体チップ本体は、前記回路部をリペアするためのヒューズ、及び前記ヒューズを覆うヒューズ絶縁パターンを含むことを特徴とする請求項25に記載の半導体パッケージ。
- 前記貫通電極と接続される接続パッド、前記接続パッド上に配置されたソルダ層を有する基板、及び前記基板と前記半導体チップ本体との間に介在するアンダーフィル部材を更に含むことを特徴とする請求項25に記載の半導体パッケージ。
- 前記基板及び前記半導体チップ本体の間には、前記半導体チップ本体を安定的にサポートするためのダミーチップサポート部材が介在することを特徴とする請求項37に記載の半導体パッケージ。
- 前記ダミーチップサポート部材は、ダミーソルダボール、ダミーバンプ及び閉ループ状を有するダミーサポート部材のうち何れか一つであることを特徴とする請求項38に記載の半導体パッケージ。
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CN102176439A (zh) | 2011-09-07 |
CN101369566A (zh) | 2009-02-18 |
US20090045504A1 (en) | 2009-02-19 |
US8232654B2 (en) | 2012-07-31 |
CN101369566B (zh) | 2013-04-24 |
KR20090017915A (ko) | 2009-02-19 |
KR100905784B1 (ko) | 2009-07-02 |
US7973414B2 (en) | 2011-07-05 |
US20110198722A1 (en) | 2011-08-18 |
TW200910567A (en) | 2009-03-01 |
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