JP5503147B2 - 無電解フェーズと電流供給フェーズとを含むウェット化学堆積によりパターニングされた絶縁体上の金属層 - Google Patents
無電解フェーズと電流供給フェーズとを含むウェット化学堆積によりパターニングされた絶縁体上の金属層 Download PDFInfo
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- JP5503147B2 JP5503147B2 JP2008548562A JP2008548562A JP5503147B2 JP 5503147 B2 JP5503147 B2 JP 5503147B2 JP 2008548562 A JP2008548562 A JP 2008548562A JP 2008548562 A JP2008548562 A JP 2008548562A JP 5503147 B2 JP5503147 B2 JP 5503147B2
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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Description
Claims (14)
- 電解質溶液(118)を適用して無電解ウェット化学堆積プロセスを実行することによって、パターニングされた半導体デバイス(100)の層に金属(114)を堆積するステップと、
外部から生成した電場(119)を前記電解質溶液(118)中に確立する一方、前記金属(114)をさらに堆積するように電解質溶液(118)を適用するステップを含み、
無電解ウェット化学堆積プロセスと電気めっきプロセスとの共存状態が構築された後に純粋な電気めっきプロセス状態が構築されるように、前記外部から生成した電場による前記電解質溶液中の電流の流れが制御される、方法。 - 前記無電解ウェット化学堆積プロセスを実行する前に、前記パターニングされた層(107)の露出面領域(107A)に触媒活性化プロセス(116)を実行するステップをさらに含む、請求項1記載の方法。
- 前記金属(114)を堆積する前に、パターニングされた絶縁体材料(107)にバリア層(110)を形成するステップをさらに含み、前記パターニングされた絶縁体材料(107)と前記バリア層(110)とは前記パターニングされた層を形成する、請求項1記載の方法。
- 前記バリア層(110)に白金、パラジウム、銀、銅、およびコバルトのうちの少なくとも1つを組み入れるステップをさらに含む、請求項3記載の方法。
- 前記金属(114)を堆積する前に、前記バリア層(110)上に触媒層(112)を形成するステップをさらに含む、請求項3記載の方法。
- 前記バリア層(110)は、無電解堆積プロセスによって形成される、請求項3記載の方法。
- 前記バリア層(110)の材料の堆積を開始するために、前記露出面(107A)に触媒材料(112)を組み入れるように、前記バリア層(110)を形成する前に前記パターニングされた絶縁体材料(107)の露出面領域(107A)に初期の触媒活性化プロセス(116)を実行するステップをさらに含む、請求項6記載の方法。
- 前記電解質溶液(118)は、前記電場(119)に基づくさらなる堆積において堆積ビヘイビアを制御する1つ以上の添加剤を含む、請求項1記載の方法。
- 前記電解質溶液(118)の温度を、前記無電解堆積プロセスの特定の処理温度以下に下げ、一方で、前記電場(119)に基づいて前記金属(114)をさらに堆積するステップをさらに含む、請求項1記載の方法。
- 前記温度は、前記外部から生成した電場(119)を確立する前に下げられる、請求項9記載の方法。
- 前記パターニングされた層は絶縁体層(107)を含み、前記金属(114)を堆積するステップはさらに、
ウェット化学堆積プロセスによって前記絶縁体層(107)に形成される開口部(108)の表面部位(107A)上にバリア層(110)を形成するステップと、
ウェット化学堆積プロセスによって前記バリア層(110)上にシード層(113)を形成するステップと、
前記シード層(113)を用いて、前記金属(114)で前記開口部(108)を埋め込むステップと、を含む請求項1記載の方法。 - 前記シード層(113)を形成する前記ウェット化学堆積プロセスにおいて、金属堆積を開始する前記バリア層(110)に触媒活性化プロセス(116)を実行するステップをさらに含む、請求項11記載の方法。
- 前記シード層(113)を形成し、さらに、前記開口部(108)を形成するために使用される電解質溶液(118)の処理温度は、前記開口部(108)の埋め込みにおいて下げられる、請求項12記載の方法。
- 外部から生成される電場(119)は、前記シード層(113)の形成において少なくとも一時的に確立される、請求項13記載の方法。
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DE102005063093 | 2005-12-30 | ||
DE102006001253A DE102006001253B4 (de) | 2005-12-30 | 2006-01-10 | Verfahren zur Herstellung einer Metallschicht über einem strukturierten Dielektrikum mittels einer nasschemischen Abscheidung mit einer stromlosen und einer leistungsgesteuerten Phase |
US11/536,041 | 2006-09-28 | ||
US11/536,041 US7517782B2 (en) | 2005-12-30 | 2006-09-28 | Method of forming a metal layer over a patterned dielectric by wet chemical deposition including an electroless and a powered phase |
PCT/US2006/047603 WO2007078790A1 (en) | 2005-12-30 | 2006-12-13 | Metal layer over a patterned dielectric by wet chemical deposition including an electroless and a powered phase |
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