JP2010251754A - C4ボール内の均一な電流密度のための金属配線構造体 - Google Patents
C4ボール内の均一な電流密度のための金属配線構造体 Download PDFInfo
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- JP2010251754A JP2010251754A JP2010091384A JP2010091384A JP2010251754A JP 2010251754 A JP2010251754 A JP 2010251754A JP 2010091384 A JP2010091384 A JP 2010091384A JP 2010091384 A JP2010091384 A JP 2010091384A JP 2010251754 A JP2010251754 A JP 2010251754A
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- metal
- vias
- metal vias
- pad
- line structure
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 542
- 239000002184 metal Substances 0.000 title claims abstract description 542
- 230000002093 peripheral effect Effects 0.000 claims abstract description 37
- 238000003491 array Methods 0.000 claims description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 abstract description 4
- 239000004065 semiconductor Substances 0.000 description 47
- 230000001681 protective effect Effects 0.000 description 27
- 239000000758 substrate Substances 0.000 description 22
- 239000003989 dielectric material Substances 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 12
- 230000000873 masking effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 150000004767 nitrides Chemical class 0.000 description 12
- 235000013351 cheese Nutrition 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 238000005229 chemical vapour deposition Methods 0.000 description 7
- 229910021645 metal ion Inorganic materials 0.000 description 6
- 238000000151 deposition Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004642 Polyimide Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
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- 238000004806 packaging method and process Methods 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 238000001459 lithography Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 2
- 229910000673 Indium arsenide Inorganic materials 0.000 description 2
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- AXQKVSDUCKWEKE-UHFFFAOYSA-N [C].[Ge].[Si] Chemical compound [C].[Ge].[Si] AXQKVSDUCKWEKE-UHFFFAOYSA-N 0.000 description 2
- KXNLCSXBJCPWGL-UHFFFAOYSA-N [Ga].[As].[In] Chemical compound [Ga].[As].[In] KXNLCSXBJCPWGL-UHFFFAOYSA-N 0.000 description 2
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 2
- 229940056932 lead sulfide Drugs 0.000 description 2
- 229910052981 lead sulfide Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- -1 silicon nitride Chemical class 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 229910021483 silicon-carbon alloy Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
【解決手段】 1つの実施形態において、金属構造体のサブパッド・アセンブリが、金属パッドの直下に配置される。サブパッド・アセンブリは、金属パッドに当接する上位レベル金属ライン構造体と、上位レベル金属ライン構造体とその下方に配置された下位レベル金属ライン構造体との間の電気的接続をもたらす一組の金属ビアとを含む。別の実施形態において、C4ボールの信頼性は、C4ボール内部の均一な電流密度分布を助長するように分割及び分布させた一組の統合された金属ビアを有する金属パッド構造体を用いることによって高められる。複数の金属ビアの断面積の面密度は、金属パッドの中央部分において金属パッドの平担部分の周縁部分よりも高い。
【選択図】 図1
Description
12、612:半導体デバイス
20、620:誘電体層
21、621A:誘電体材料部分
22、622:相互接続レベル金属ビア
24、624:相互接続レベル金属ライン
30:第1の下位レベル金属ライン構造体
32:第2の下位レベル金属ライン構造体
33:下位レベル金属ワイヤ
34:第3の下位レベル金属ライン構造体
36:第4の下位レベル金属ライン構造体
40:ビア・レベル誘電体層
49A:第1のビア・ホール
49B:第2のビア・ホール
50A:第1の組の金属ビア
50B:相互接続ビア
52:第2の組の金属ビア
54:第3の組の金属ビア
56:第4の組の金属ビア
60、660:ライン・レベル誘電体層
70A:上位レベル金属ライン構造体
70B:上位レベル金属配線ライン
80、680:保護誘電体層
90、690:金属パッド
95、695:誘電体マスキング層
99、699:C4ボール
650:相互接続ビア
670A:金属ライン構造体
670B:金属配線ライン
690V、690W、690X、690Y、690Z:金属ビア
Claims (20)
- 金属相互接続構造体の上に配置された金属パッドと、
前記金属パッドに当接する上位レベル金属ライン構造体と、
前記上位レベル金属ライン構造体の下方に配置された下位レベル金属ライン構造体と、
一組の金属ビアと
を備え、
前記一組の金属ビアは、前記金属パッドの中央領域の下方において、前記金属パッドの周縁領域の下方におけるよりも高い面密度の水平方向断面積を有する、
構造体。 - 前記一組の金属ビアの各金属ビアは、前記上位レベル金属ライン構造体及び前記下位レベル金属ライン構造体に垂直に当接し、
前記金属パッドはアルミニウムを含み、前記上位レベル金属ライン構造体、前記一組の金属ビア、及び前記下位レベル金属ライン構造体の各々は銅を含み、
前記金属パッドは、上部平担部分と、下方に延びて前記上位レベル金属ライン構造体に当接する少なくとも1つのビア部分とを含む、
請求項1に記載の構造体。 - 前記一組の金属ビアは実質的に同じサイズの金属ビアを含む、請求項1に記載の構造体。
- 前記実質的に同じサイズの金属ビアの少なくとも幾つかは、隣り合う金属ビアの間の間隔が前記中央領域の下方において前記周縁領域の下方におけるよりも小さい一次元配列に配置される、請求項3に記載の構造体。
- 前記実質的に同じサイズの金属ビアは、同じ配向を有する複数の1次元配列に配置され、
隣り合う金属ビアの間の間隔は、前記複数の1次元配列の各々において、中央部分において端部分よりも小さい、
請求項3に記載の構造体。 - 前記一組の金属ビアの各金属ビアは円形又は矩形の断面積を有する、請求項3に記載の構造体。
- 前記一組の金属ビアの各金属ビアは、細長い水平方向断面積を有し、水平方向の幅は、前記一組の金属ビアの各々において中心点からの距離と共に単調に減少する、請求項3に記載の構造体。
- 前記水平方向の幅は、細長い方向に沿った前記中心点からの距離と共に段階的に減少する、請求項7に記載の構造体。
- 前記一組の金属ビアは、前記水平方向の幅の方向に沿った1次元配列に配置される、請求項7に記載の構造体。
- 前記一組の金属ビアは、隣り合う金属ビアの間の第1の間隔が、第1の方向に沿った前記中央領域の下において前記周縁領域の下よりも小さい2次元配列に配置される、請求項3に記載の構造体。
- 一体構造を有し、金属相互接続構造体の上に配置され、上部平担部分と下方に延びる複数の金属ビアとを含む、金属パッドと、
前記複数の金属ビアの底面に当接する金属ライン構造体と、
を備え、
前記複数の金属ビアは、前記金属パッドの中央領域の下方において前記金属パッドの周縁領域の下方よりも高い面密度の水平方向断面積を有する、
構造体。 - 前記複数の金属ビアの各金属ビアは、前記金属ライン構造体に垂直に当接し、
前記金属パッドはアルミニウムを含み、前記金属ライン構造体は銅を含む、
請求項11に記載の構造体。 - 前記複数の金属ビアは実質的に同じサイズの金属ビアを含む、請求項11に記載の構造体。
- 前記実質的に同じサイズの金属ビアの少なくとも幾つかは、隣り合う金属ビアの間の間隔が前記中央領域の下方において前記周縁領域の下方よりも小さい一次元配列に配置される、請求項13に記載の構造体。
- 前記実質的に同じサイズの金属ビアは、同じ配向を有する複数の1次元配列に配置され、隣り合う金属ビアの間の間隔は、前記複数の1次元配列の各々において、中央部分において端部分におけるよりも小さい、請求項13に記載の構造体。
- 前記複数の金属ビアの各金属ビアは円形又は矩形の断面積を有する、請求項13に記載の構造体。
- 前記複数の金属ビアの各金属ビアは、細長い水平方向の断面積を有し、水平方向の幅は、前記複数の金属ビアの各々において中心点からの距離と共に単調に減少する、請求項13に記載の構造体。
- 前記水平方向の幅は、細長い方向に沿った前記中心点からの距離と共に段階的に減少する、請求項17に記載の構造体。
- 前記複数の金属ビアは、前記水平方向の幅の方向に沿った一次元配列に配置される、請求項17に記載の構造体。
- 前記複数の金属ビアは、隣り合う金属ビアの間の第1の間隔が第1の方向に沿った前記中央領域の下において前記周縁領域の下よりも小さい2次元配列に配置される、請求項13に記載の構造体。
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Also Published As
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US8264078B2 (en) | 2012-09-11 |
KR101137117B1 (ko) | 2012-04-19 |
US20120080797A1 (en) | 2012-04-05 |
KR20100114456A (ko) | 2010-10-25 |
CN101866898B (zh) | 2012-07-25 |
US8084858B2 (en) | 2011-12-27 |
CN101866898A (zh) | 2010-10-20 |
US20100263913A1 (en) | 2010-10-21 |
JP5656441B2 (ja) | 2015-01-21 |
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