JPWO2008078731A1 - 半導体装置及びその製造方法 - Google Patents
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- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/5228—Resistive arrangements or effects of, or between, wiring layers
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/5222—Capacitive arrangements or effects of, or between wiring layers
- H01L23/5223—Capacitor integral with wiring layers
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- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/532—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
- H01L23/53204—Conductive materials
- H01L23/53209—Conductive materials based on metals, e.g. alloys, metal silicides
- H01L23/53228—Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
- H01L23/53238—Additional layers associated with copper layers, e.g. adhesion, barrier, cladding layers
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- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
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Abstract
Description
11 下層配線
21 配線キャップ絶縁膜
22 ハードマスク絶縁膜
31 第1の抵抗素子用コンタクト孔
32 容量素子形成用トレンチ
41 受動素子下層金属膜
42 受動素子絶縁膜
43 受動素子上層金属膜
44 受動素子キャップ絶縁膜
45 容量素子下部電極コンタクト
46 第1の抵抗素子コンタクト
51 容量素子の下部電極
52 容量絶縁膜
53 容量素子の上部電極
55 容量素子
56 第1の抵抗素子
57 第2の抵抗素子
61 配線間ビア
62 上部電極コンタクトビア
63 受動素子上層のCu配線
64、64a、64b 第2の抵抗素子用コンタクト
71 CMOSトランジスタ層
72 多層配線層
Claims (18)
- 容量素子と抵抗素子とを含む受動素子を有する半導体装置であって、
前記容量素子と前記抵抗素子とが同層に組み込まれ、
前記容量素子の電極が金属膜で形成され、かつ前記電極が配線構造の配線層で裏打ちされ、
前記抵抗素子が、前記金属膜の一部で形成されていることを特徴とする半導体装置。 - 前記電極が下部電極であり、前記下部電極が下部金属膜で形成され、かつ前記下部電極が前記配線層で裏打ちされ、
前記抵抗素子が、前記下部金属膜の一部で形成されている請求項1に記載の半導体装置。 - 前記電極のうち上部電極が上部金属膜で形成され、前記電極のうち下部電極が下部金属膜で形成され、かつ前記下部電極が前記配線層で裏打ちされ、
前記抵抗素子が、前記上部金属膜の一部で形成されている請求項1に記載の半導体装置。 - 前記配線構造が、ビア層間絶縁膜を相互間に介在させて積層された複数の配線層と、前記ビア層間絶縁膜に設けられてその上方及び下方の前記配線層を接続するビアと、を有する多層配線構造であり、一の前記ビア層間絶縁膜からなる受動素子層間絶縁膜と、前記受動素子層間絶縁膜に設けられた第1乃至第3の開口部とを有し、
前記容量素子が、前記第1の開口部を含む領域に形成され、前記抵抗素子が、前記第2及び第3の開口部及びこれらの第2及び第3の開口部間に形成され、
前記容量素子は、前記第1の開口部に露出している下層の配線部の全域と接触する下部金属膜を下部電極とし、この下部電極上に形成された容量絶縁膜と、この容量絶縁膜上に形成された上部金属膜を上部電極とした層膜から構成され、
前記抵抗素子は、前記容量素子と同一の層構成を有し、その下部金属膜が前記第2及び第3の開口部に露出する下層の2個の配線層と接触してその間の部分が抵抗体を構成している請求項1に記載半導体装置。 - 前記上部金属膜を抵抗体とする上部抵抗素子を有する請求項3又は4のいずれか一項に記載の半導体装置。
- 前記容量素子の上部電極及び下部電極は平面視で同一の形状に形成されている請求項1,2,3又は4のいずれか一項に記載の半導体装置。
- 前記受動素子層間絶縁膜は、下層配線層の酸化及びその構成元素の拡散を防止する配線キャップ絶縁膜と、ハードマスク絶縁膜との積層体である請求項4に記載の半導体装置。
- 前記配線キャップ絶縁膜は、SiN、SiCN、及びSiCからなる群から選択された材料により形成され、前記ハードマスクは、SiO2及びSiCOHからなる群から選択された材料により形成されている請求項7に記載の半導体装置。
- 前記第1乃至第3の開口部は、その側縁が傾斜している請求項4に記載の半導体装置。
- 前記容量素子及び前記抵抗素子の上部金属膜上に、前記上記金属膜と平面視で同一形状の受動素子キャップ絶縁膜が形成されている請求項1,3又は4のいずれか一項に記載の半導体装置。
- 前記容量絶縁膜は、膜厚が5nm以上の窒化シリコン膜である請求項4に記載の半導体装置。
- 前記容量絶縁膜は、金属酸化膜である請求項4項に記載の半導体装置。
- 前記下部金属膜の膜厚が上部金属膜の膜厚よりも薄い請求項4に記載の半導体装置。
- 前記抵抗素子は、前記第2及び第3の開口部で接続された下層配線層を介して、周辺回路に接続されている請求項4に記載の半導体装置。
- 前記上部抵抗素子は、前記上部金属膜と上層配線層との間のビア層間絶縁膜に形成されたコンタクトビアを介して、前記上層配線層に接続されている請求項3又は5のいずれか一項に記載の半導体装置。
- 前記抵抗素子又は前記上部抵抗素子の一方に、差動信号が入力され、他方から伝搬された信号が出力される請求項2又は5に記載の半導体装置。
- 前記抵抗素子又は前記上部抵抗素子の一方を、接地電位とし、他方の一方の端子に信号を入力して、他方の端子から信号を出力する請求項16に記載の半導体装置。
- 多層配線構造のビア層間絶縁膜を構成する配線キャップ絶縁膜とハードマスク絶縁膜とを積層形成し、
フォトリソグラフィにより前記ハードマスク絶縁膜に開口部を形成し、
前記開口部が形成されたハードマスク絶縁膜をマスクとして前記配線キャップ絶縁膜をエッチングして下層の配線層が露出する第1乃至第3の開口部を形成し、
受動素子下層金属層、受動素子絶縁膜及び受動素子上層金属層からなる積層体を形成し、フォトリソグラフィにより前記積層体をパターニングして、前記第1の開口部に容量素子、前記第2及び第3の開口部間に抵抗素子を形成することを特徴とする半導体装置の製造方法。
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US7022246B2 (en) | 2003-01-06 | 2006-04-04 | International Business Machines Corporation | Method of fabrication of MIMCAP and resistor at same level |
KR100524963B1 (ko) | 2003-05-14 | 2005-10-31 | 삼성전자주식회사 | 금속 배선 및 금속 저항을 포함하는 반도체 소자 및 그제조 방법 |
JP3987847B2 (ja) | 2003-10-17 | 2007-10-10 | Necエレクトロニクス株式会社 | Mim構造抵抗体を搭載した半導体装置 |
WO2006001349A1 (ja) | 2004-06-23 | 2006-01-05 | Nec Corporation | 容量素子が搭載された半導体装置 |
-
2007
- 2007-12-25 US US12/519,706 patent/US8629529B2/en not_active Expired - Fee Related
- 2007-12-25 JP JP2008551109A patent/JP5059784B2/ja not_active Expired - Fee Related
- 2007-12-25 WO PCT/JP2007/074796 patent/WO2008078731A1/ja active Application Filing
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US20090309186A1 (en) | 2009-12-17 |
WO2008078731A1 (ja) | 2008-07-03 |
JP5059784B2 (ja) | 2012-10-31 |
US8629529B2 (en) | 2014-01-14 |
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