JP7200436B1 - 積層体及び積層体の製造方法 - Google Patents
積層体及び積層体の製造方法 Download PDFInfo
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- JP7200436B1 JP7200436B1 JP2022502615A JP2022502615A JP7200436B1 JP 7200436 B1 JP7200436 B1 JP 7200436B1 JP 2022502615 A JP2022502615 A JP 2022502615A JP 2022502615 A JP2022502615 A JP 2022502615A JP 7200436 B1 JP7200436 B1 JP 7200436B1
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- 238000000034 method Methods 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
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- 239000000758 substrate Substances 0.000 claims abstract description 58
- 239000010936 titanium Substances 0.000 claims description 112
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 111
- 229910052719 titanium Inorganic materials 0.000 claims description 104
- 150000002500 ions Chemical class 0.000 claims description 61
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 55
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- 239000007789 gas Substances 0.000 description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 21
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
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- 238000005477 sputtering target Methods 0.000 description 1
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- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
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- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
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- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
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Abstract
Description
本発明の第1実施形態による積層体及びその製造方法について図1乃至図4を用いて説明する。本実施形態では、積層体として、半導体パッケージの配線部における配線層を含む積層体について説明する。
本発明の第2実施形態による積層体及び積層体の製造方法について図5を用いて説明する。なお、第1実施形態による積層体及び積層体の製造方法と同様の構成要素については同一の符号を付し説明を省略し又は簡略にする。
本発明の第3実施形態による積層体及び積層体の製造方法について図6を用いて説明する。なお、第1及び第2実施形態による積層体及び積層体の製造方法と同様の構成要素については同一の符号を付し説明を省略し又は簡略にする。
本発明の第4実施形態により積層体及び積層体の製造方法について説明する。なお、第1乃至第3実施形態による積層体及び積層体の製造方法と同様の構成要素については同一の符号を付し説明を省略し又は簡略にする。
以上、本発明の好ましい第1乃至第4実施形態について説明したが、本発明は、これらの第1乃至第4実施形態に限定されるものではなく、その要旨の範囲内で種々の変形及び変更が可能である。
Claims (13)
- 第1配線層と、樹脂層と、第2配線層と、をこの順に有し、
前記第2配線層は、少なくとも、密着層と、シード層と、をこの順に含み、
前記密着層は、チタンカーバイド層と、チタン層と、をこの順に有する積層体。 - 前記樹脂層には、前記第1配線層に到達するビアホールが形成されており、
前記ビアホールの底部では、前記第1配線層と前記チタン層とが互いに電気的に接続されるように、前記第1配線層上に、前記第1配線層の側から、前記チタン層と、前記シード層と、がこの順に積層されており、
前記ビアホールの前記底部を除く部分では、前記第1配線層と前記チタン層とが絶縁されるように、前記樹脂層上に、前記樹脂層の側から、前記チタンカーバイド層と、前記チタン層と、前記シード層とが、この順に積層されている請求項1に記載の積層体。 - 樹脂層上にチタン膜を形成する第1工程と、
前記第1工程の後、前記チタン膜にエネルギを付与して密着層の一部を構成するチタンカーバイド層を形成する第2工程と、
前記第2工程の後、前記チタンカーバイド層上に前記密着層の一部を構成するチタン層を形成する第3工程と、
前記第3工程の後、前記チタン層上にシード層を形成する第4工程と、を有する積層体の製造方法。 - 前記第2工程は、前記樹脂層上に前記チタン膜が形成された状態でイオン照射により前記チタン膜に前記エネルギを付与し、前記チタン膜から前記チタンカーバイド層を形成する請求項3に記載の積層体の製造方法。
- 前記第2工程は、前記樹脂層が形成された基材に高周波電圧を印加してプラズマを発生させ、前記基材に現れる自己バイアス電圧によりイオンを引き込み、前記チタン膜に前記エネルギを付与し、前記チタン膜から前記チタンカーバイド層を形成する請求項3に記載の積層体の製造方法。
- 前記第2工程は、前記樹脂層が形成された基材に負のバイアス電圧を印加し、負のバイアス電圧によりイオンを引き込み、前記チタン膜に前記エネルギを付与し、前記チタン膜から前記チタンカーバイド層を形成する請求項3に記載の積層体の製造方法。
- 前記樹脂層が形成された基材に負のバイアス電圧を印加し、前記負のバイアス電圧によりイオン照射による前記エネルギを付与しながら前記チタン膜を成膜しつつ、前記チタンカーバイド層を形成して、前記第1工程と前記第2工程とを同時に実施する請求項3に記載の積層体の製造方法。
- 前記第2工程は、前記チタン膜に前記エネルギを付与することで前記樹脂層の表面を改質し、前記チタン膜の少なくとも前記樹脂層の側の部分に前記チタンカーバイド層を形成する請求項3から7のいずれか1項に記載の積層体の製造方法。
- 前記第1工程の前に、第1配線層と、前記第1配線層に到達するビアホールが形成された前記樹脂層と、をエッチングするエッチング工程を有する請求項3から8のいずれか1項に記載の積層体の製造方法。
- 前記第1工程は、前記第1配線層上と前記樹脂層上とに前記チタン膜を形成する請求項9に記載の積層体の製造方法。
- 前記第3工程は、前記第1配線層の表面と前記チタンカーバイド層の表面とに前記チタン層を形成する請求項10に記載の積層体の製造方法。
- 第1配線層と、樹脂層と、第2配線層と、をこの順に有し、
前記第2配線層は、密着層と、シード層と、をこの順に含み、
前記密着層は、チタンカーバイド層と、チタン層と、をこの順に有し、
前記チタンカーバイド層は、前記樹脂層上に形成されたチタン膜にエネルギを付与して形成された層である積層体。 - 前記樹脂層には、前記第1配線層に到達するビアホールが形成されており、
前記ビアホールの底部では、前記第1配線層と前記チタン層とが互いに電気的に接続されるように、前記第1配線層上に、前記第1配線層の側から、前記チタン層と、前記シード層と、がこの順に積層されており、
前記ビアホールの前記底部を除く部分では、前記第1配線層と前記チタン層とが絶縁されるように、前記樹脂層上に、前記樹脂層側から、前記チタンカーバイド層と、前記チタン層と、前記シード層とが、この順に積層されている請求項12に記載の積層体。
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