JP7240455B2 - 半導体装置及びダイシング方法 - Google Patents
半導体装置及びダイシング方法 Download PDFInfo
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- JP7240455B2 JP7240455B2 JP2021132976A JP2021132976A JP7240455B2 JP 7240455 B2 JP7240455 B2 JP 7240455B2 JP 2021132976 A JP2021132976 A JP 2021132976A JP 2021132976 A JP2021132976 A JP 2021132976A JP 7240455 B2 JP7240455 B2 JP 7240455B2
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- silicon substrate
- semiconductor device
- dicing
- metal layer
- layer
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- 239000004065 semiconductor Substances 0.000 title claims description 83
- 238000000034 method Methods 0.000 title description 17
- 229910052751 metal Inorganic materials 0.000 claims description 67
- 239000002184 metal Substances 0.000 claims description 67
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 55
- 229910052710 silicon Inorganic materials 0.000 claims description 55
- 239000010703 silicon Substances 0.000 claims description 55
- 239000000758 substrate Substances 0.000 claims description 54
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
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- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 4
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- 229910052709 silver Inorganic materials 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 2
- QUQFTIVBFKLPCL-UHFFFAOYSA-L copper;2-amino-3-[(2-amino-2-carboxylatoethyl)disulfanyl]propanoate Chemical compound [Cu+2].[O-]C(=O)C(N)CSSCC(N)C([O-])=O QUQFTIVBFKLPCL-UHFFFAOYSA-L 0.000 claims 1
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- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 2
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- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- 238000003486 chemical etching Methods 0.000 description 1
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- 229910003460 diamond Inorganic materials 0.000 description 1
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/30—Technical effects
- H01L2924/35—Mechanical effects
- H01L2924/351—Thermal stress
- H01L2924/3512—Cracking
- H01L2924/35121—Peeling or delaminating
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Dicing (AREA)
- Die Bonding (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
例えば、メタル層14が支持基盤40上にはんだ42を用いてボンディングされている。
この図5に示すように、半導体装置1の側面が曲率を有することにより、側面が垂直である場合と比較してはんだ42とメタル層14との接触面が広くなる。この結果、ダイシェア強度の向上、すなわち、ダイボンディング性を向上することが可能となる。はんだ42でボンディングする場合に限られず、ダイボンディング樹脂によりボンディングされる場合も同様である。
前述した実施形態においては、シングルカットでダイシングを行ったが、これには限られず、ステップカットでダイシングを行うようにしてもよい。
上述したように、ダイシングテープ16の途中まで、ダイシングテープ16の上面を浅く切断する程度の高さに調節するようにしてもよい。
また、当然のことながら、本発明の要旨の範囲内で、これらの実施の形態を部分的に適宜組み合わせることも可能である。
Claims (4)
- シリコン基板と、
前記シリコン基板の上面に形成された、半導体層と、
前記シリコン基板の下面に形成され、側面が前記シリコン基板の側面と連続する、下層と、
を備え、少なくとも1対の側面が上方から下方へ向かって拡がる形状を有し、前記下層は、前記下層の上方から下方へと向かって拡がる形状の側面を有するニッケル、チタン、金、銀、銅、亜鉛及びパラジウムのうち少なくとも1つを含むメタル層、又は、ダイアタッチフィルムであり、
前記シリコン基板は、前記シリコン基板の下方において、前記シリコン基板の上面の面積よりも、前記シリコン基板の下面の面積が広い、半導体装置。 - 前記下層は、垂直の側面を有する、請求項1に記載の半導体装置。
- ダイシングブレードを回転させるステップと、
シリコン基板に前記ダイシングブレードを接触させるステップと、
前記シリコン基板と、前記シリコン基板の上面に形成された半導体層と、前記シリコン基板の下面に形成されたニッケル、チタン、金、銀、銅、亜鉛及びパラジウムのうち少なくとも1つを含むメタル層又はダイアタッチフィルムである下層とからなる積層体を、前記積層体の上方から下方へと向かって拡がる側面を有するように、ダイシングするステップと、
を備え、
前記ダイシングをするステップは、前記シリコン基板の下方において、前記シリコン基板の上面の面積よりも前記シリコン基板の下面の面積が広く、前記下層において、上方から下方へと向かって拡がる側面を有するように、ダイシングするステップである、
半導体装置の製造方法。 - 前記ダイシングするステップは、前記下層が垂直の側面を有するように、ダイシングするステップである、
請求項3に記載の半導体装置の製造方法。
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