JP2017174971A - 半導体集積回路チップ及び半導体集積回路ウェーハ - Google Patents
半導体集積回路チップ及び半導体集積回路ウェーハ Download PDFInfo
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- JP2017174971A JP2017174971A JP2016059397A JP2016059397A JP2017174971A JP 2017174971 A JP2017174971 A JP 2017174971A JP 2016059397 A JP2016059397 A JP 2016059397A JP 2016059397 A JP2016059397 A JP 2016059397A JP 2017174971 A JP2017174971 A JP 2017174971A
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Abstract
Description
半導体集積回路チップ(1)は、半導体基板(10)と、前記半導体基板の上方に形成され、上下に複数層配線構造を有する半導体回路(11)と、前記半導体基板の上方に形成され、前記半導体回路を囲む金属製のガードリング(14)と、前記半導体回路が有する前記複数層配線構造の所定の配線(15)に接続されて表面に露出された複数の外部接続端子(17_1〜17_n)と、を有する。前記複数の外部接続端子の内の所定の外部接端子(17_1)は、前記ガードリングの内側で導電性のビア(18)を介して前記所定の配線に導通され、前記ガードリングの外側で導電性のビア(19)を介して導電性切片(6)に導通される。前記導電性切片はテスト用引き出し配線(6)の切片であって、ダイシングによってその切断面が露出されている配線である。
項1において、前記外部接続端子は貴金属配線材料から成り、前記導電性切片及び前記ガードリングはアルミニウム配線材料から成る。
項2において、前記切片はガードリングの外側から内側に向って凹陥した凹陥部に入り込んで外部接続端子に上下方向に重なる位置で導電性のビアを介して外部接続端子に接続する。
項2において、前記導電性切片はダイシングされたダイシング領域に形成されていたテストパッド(4)から延在されていた配線である。
項2において、前記ガードリングは、前記複数層配線構造の各配線層に前記半導体回路の外側を周回するようの夫々上下方向に重ねて配置された閉路を形成する閉路配線(12_1〜12_6)と、上下方向に隣接する配線層の前記閉路配線同士をその上下方向に接続する導電性の周回ビア(13_1〜13_5)とから成る。
半導体集積回路ウェーハ(9)は、半導体ウェーハ(7)上に複数のチップ形成領域(1w)が離間して配置され、前記チップ形成領域の間はダイシング領域(8)とされる。夫々の前記チップ形成領域は、前記半導体ウェーハの上方に形成され、上下に複数層配線構造を有する半導体回路(11)と、前記半導体ウェーハの上方に形成され、前記半導体回路を囲む金属製のガードリング(14)と、前記半導体回路が有する前記複数層配線構造の所定の配線(15)に接続されて表面に露出された複数の外部接続端子(17_1〜17_n)と、を有する。前記ダイシング領域は、複数のテストパッド(4)を有する。夫々のチップ形成領域において前記複数の外部接続端子の内の同一機能を有する所定の複数の外部接端子(17_1)は、前記ガードリングの内側で導電性のビア(18)を介して前記所定の配線に導通され、前記ガードリングの外側で導電性のビア(19)を介して前記テストパッドから引き出されたテスト用引き出し配線(6)に接続される。
項6において、前記外部接続端子は貴金属配線材料から成り、前記導電性切片及び前記ガードリングはアルミニウム配線材料から成る。
項7において、前記同一機能を有する所定の複数の外部接端子は当該チップ形成領域において導通される(Lvdd,Lvss)。前記半導体ウェーハ上に前記ダイシング領域を挟んで一方向に配列された3個以上の前記チップ形成領域が配置され、前記ダイシング領域に形成されている前記テスト用パッドから両側のチップ形成領域に向けてテスト引き出し配線が引き出され、引き出された前記テスト用配線はその両側のチップ形成領域の夫々に形成されている相互に同一機能を有する前記所定の外部接続端子に接続されている。
項8において、前記所定の外部接続端子は電源端子又はグランド端子である。
項7において、前記テスト用引き出し配線はガードリングの外側から内側に向って凹陥した凹陥部に入り込んで外部接続端子に上下方向に重なる位置で導電性のビアを介して外部接続端子に接続する。
項7において、前記ガードリングは、前記複数層配線構造の各配線層に前記半導体回路の外側を周回するようの夫々上下方向に重ねて配置された閉路を形成する閉路配線(12_1〜12_6)と、上下方向に隣接する配線層の前記閉路配線同士をその上下方向に接続する導電性の周回ビア(13_1〜13_5)とから成る。
1w チップ形成領域
4 テストパッド
6 テスト用引き出し配線(導電性切片)
7 半導体ウェーハ
8 ダイシング領域
9 半導体集積回路ウェーハ
11 半導体回路
L1〜L5 配線層
12_1〜12_6 閉路配線
13_1〜13_5 周回ビア
14 ガードリング
14A 凹陥部
15 所定の最上層配線
16_1〜16_m、17_1〜17_n 外部接続端子
Lvdd 電源配線
Lvss グランド配線
18 導電性のビア
19 導電性のビア
20 TiNから成るバリアメタル
21 L4配線層のアルミニウム配線
23 アンダーバンプメタル(UBM)
30 フォトレジスト
31 フォトマスク
32 開口
40 最上層配線
42 テスト用引き出し配線
43 ガードリング
43A 切り欠き
Claims (11)
- 半導体基板と、
前記半導体基板の上方に形成され、上下に複数層配線構造を有する半導体回路と、
前記半導体基板の上方に形成され、前記半導体回路を囲む金属製のガードリングと、
前記半導体回路が有する前記複数層配線構造の所定の配線に接続されて表面に露出された複数の外部接続端子と、を有する半導体集積回路チップにおいて、
前記複数の外部接続端子の内の所定の外部接端子は、前記ガードリングの内側で導電性のビアを介して前記所定の配線に導通され、前記ガードリングの外側で導電性のビアを介して導電性切片に導通され、
前記導電性切片はテスト用引き出し配線の切片であって、ダイシングによってその切断面が露出されている配線である、半導体集積回路チップ。 - 請求項1において、前記外部接続端子は貴金属配線材料から成り、前記導電性切片及び前記ガードリングはアルミニウム配線材料から成る、半導体集積回路チップ。
- 請求項2において、前記切片はガードリングの外側から内側に向って凹陥した凹陥部に入り込んで外部接続端子に上下方向に重なる位置で導電性のビアを介して外部接続端子に接続する、半導体集積回路チップ。
- 請求項2において、前記導電性切片はダイシングされたダイシング領域に形成されていたテストパッドから延在されていた配線である、半導体集積回路チップ。
- 請求項2において、前記ガードリングは、前記複数層配線構造の各配線層に前記半導体回路の外側を周回するようの夫々上下方向に重ねて配置された閉路を形成する閉路配線と、上下方向に隣接する配線層の前記閉路配線同士をその上下方向に接続する導電性の周回ビアとから成る、半導体集積回路チップ。
- 半導体ウェーハ上に複数のチップ形成領域が離間して配置され、前記チップ形成領域の間はダイシング領域とされる半導体集積回路ウェーハであって、
夫々の前記チップ形成領域は、前記半導体ウェーハの上方に形成され、上下に複数層配線構造を有する半導体回路と、前記半導体ウェーハの上方に形成され、前記半導体回路を囲む金属製のガードリングと、前記半導体回路が有する前記複数層配線構造の所定の配線に接続されて表面に露出された複数の外部接続端子と、を有し、
前記ダイシング領域は複数のテストパッドを有し、
夫々のチップ形成領域において前記複数の外部接続端子の内の同一機能を有する所定の複数の外部接端子は、前記ガードリングの内側で導電性のビアを介して前記所定の配線に導通され、前記ガードリングの外側で導電性のビアを介して前記テストパッドから引き出されたテスト用引き出し配線に接続されている、半導体集積回路ウェーハ。 - 請求項6において、前記外部接続端子は貴金属配線材料から成り、前記導電性切片及び前記ガードリングはアルミニウム配線材料から成る、半導体集積回路ウェーハ。
- 請求項7において、前記同一機能を有する所定の複数の外部接端子は当該チップ形成領域において導通され、
前記半導体ウェーハ上に前記ダイシング領域を挟んで一方向に配列された3個以上の前記チップ形成領域が配置され、前記ダイシング領域に形成されている前記テスト用パッドから両側のチップ形成領域に向けてテスト引き出し配線が引き出され、引き出された前記テスト用配線はその両側のチップ形成領域の夫々に形成されている相互に同一機能を有する前記所定の外部接続端子に接続されている、半導体集積回路ウェーハ。 - 請求項8において、前記所定の外部接続端子は電源端子又はグランド端子である、半導体集積回路ウェーハ。
- 請求項7において、前記テスト用引き出し配線はガードリングの外側から内側に向って凹陥した凹陥部に入り込んで外部接続端子に上下方向に重なる位置で導電性のビアを介して外部接続端子に接続する、半導体集積回路ウェーハ。
- 請求項7において、前記ガードリングは、前記複数層配線構造の各配線層に前記半導体回路の外側を周回するようの夫々上下方向に重ねて配置された閉路を形成する閉路配線と、上下方向に隣接する配線層の前記閉路配線同士をその上下方向に接続する導電性の周回ビアとから成る、半導体集積回路ウェーハ。
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