JP6691504B2 - ウエハ加工体及びその製造方法並びにウエハ上における有機膜の被覆性確認方法 - Google Patents
ウエハ加工体及びその製造方法並びにウエハ上における有機膜の被覆性確認方法 Download PDFInfo
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- JP6691504B2 JP6691504B2 JP2017079597A JP2017079597A JP6691504B2 JP 6691504 B2 JP6691504 B2 JP 6691504B2 JP 2017079597 A JP2017079597 A JP 2017079597A JP 2017079597 A JP2017079597 A JP 2017079597A JP 6691504 B2 JP6691504 B2 JP 6691504B2
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Images
Classifications
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- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/26—Bombardment with radiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02118—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer carbon based polymeric organic or inorganic material, e.g. polyimides, poly cyclobutene or PVC
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- H—ELECTRICITY
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
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- H—ELECTRICITY
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02205—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition
- H01L21/02208—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02214—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen
- H01L21/02216—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen the compound being a molecule comprising at least one silicon-oxygen bond and the compound having hydrogen or an organic group attached to the silicon or oxygen, e.g. a siloxane
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Description
前記有機膜層(B)は、紫外光を照射することで可視光を発光する蛍光剤を含有するものであることを特徴とするウエハ加工体を提供する。
前記有機膜層(B)を、紫外光を照射することで可視光を発光する蛍光剤を含有するものとし、
前記有機膜層(B)が形成されている前記ウエハに紫外光を照射し、該照射の際の発光状態によって前記有機膜層(B)の被覆性を確認することを特徴とするウエハ上における有機膜の被覆性確認方法を提供する。
前記有機膜層(B)を、紫外光を照射することで可視光を発光する蛍光剤を含有するものとすることを特徴とするウエハ加工体の製造方法を提供する。
図1は、本発明のウエハ加工体の一例を示す断面模式図である。図1に示すように、本発明のウエハ加工体10は、表面に凹凸及び保護有機膜層(A)12が形成されているウエハ11上に、100nm未満の膜厚で有機膜層(B)13が形成されている。そして、この有機膜層(B)13は、紫外光を照射することで可視光を発光する蛍光剤を含有するものである。なお、図1では表面に凹凸及び保護有機膜層(A)が形成されているウエハを図示してあるが、本発明におけるウエハは表面に凹凸又は保護有機膜層(A)が形成されているものであっても良い。
本発明におけるウエハは、
(a)表面に凹凸が形成されているウエハ
(b)表面に保護有機膜層(A)が形成されているウエハ
(c)表面に凹凸と保護有機膜層(A)のどちらもが形成されているウエハ
が挙げられる。
有機膜層(B)は、紫外光を照射すると可視光を発光する蛍光剤を含有した、膜厚100nm未満の有機膜層である。有機膜層(B)の膜厚の下限値は例えば1nmとすることができる。有機膜層(B)の膜厚は、好ましくは5〜50nm、更に好ましくは10〜40nmである。膜厚が100nm以上であれば可視光の干渉縞が発生し、目視でも塗布膜(有機膜層(B))が存在していることが分かる。この場合、本発明のウエハ加工体を用いなくても、有機膜層(B)の存在を可視光下で目視確認することが可能となる。しかしながら、膜厚が100nm未満になると干渉縞が薄くなり目視での確認が難しくなり、特に5〜50nmでは目視確認が困難となるため、本発明のウエハ加工体をより好適に用いることができる。
蛍光剤としては、紫外光を吸収し可視光を発する蛍光物質であれば特に制限はない。照射する紫外光の波長範囲としては200〜400nm、好ましくは300〜400nm、発光する可視光の波長範囲としては380〜750nm、好ましくは400〜500nmである。
本発明のウエハ加工体の製造方法は、表面に凹凸及び/又は保護有機膜層(A)が形成されているウエハ上に、有機膜層(B)を100nm未満の膜厚で形成する工程を含む方法であって、上記有機膜層(B)を、紫外光を照射することで可視光を発光する蛍光剤を含有するものとすることを特徴とする。
本発明の有機膜の被覆性確認方法は、表面に凹凸及び/又は保護有機膜層(A)が形成されているウエハ上に、有機膜層(B)を100nm未満の膜厚で形成した際の、上記ウエハ上における上記有機膜層(B)の被覆性を確認する方法であって、上記有機膜層(B)を、紫外光を照射することで可視光を発光する蛍光剤を含有するものとし、上記有機膜層(B)が形成されている上記ウエハに紫外光を照射し、該照射の際の発光状態によって上記有機膜層(B)の被覆性を確認することを特徴とする。
4つ口フラスコにオクタメチルシクロテトラシロキサン1,000g(3.38モル)及びヘキサメチルジシロキサン0.24g(0.0015モル)を仕込み、温度を110℃に保った。次いで、これに10質量%テトラブチルホスホニウムハイドロオキサイドシリコネート4gを加え、4時間かけて重合した後、160℃で2時間、後処理を行って、ジメチルポリシロキサンを得た。
表1に従い、(b1)、(b2)、(b3)溶液に蛍光増白剤(c1)、(c2)を添加し、(b1)、(b2)、(b3)溶液と蛍光増白剤(c1)、(c2)とを撹拌、混合した後、0.2μmのメンブレンフィルターで濾過して、(B−1)、(B−2)、(B−3)、(B−4)、(B−6)、(B−7)溶液を得た。なお、(B−5)溶液は、蛍光増白剤を添加せず、(b1)溶液を0.2μmのメンブレンフィルターで濾過することによって調製した。
12…保護有機膜層(A)、 13、23…有機膜層(B)。
Claims (9)
- 表面に凹凸及び/又は保護有機膜層(A)が形成されているウエハ上に、100nm未満の膜厚で有機膜層(B)が形成されているウエハ加工体であって、
前記有機膜層(B)は、紫外光を照射することで可視光を発光する蛍光剤を含有するものであることを特徴とするウエハ加工体。 - 前記表面に凹凸及び/又は保護有機膜層(A)が形成されているウエハが、回路が形成されているデバイスウエハであることを特徴とする請求項1に記載のウエハ加工体。
- 前記100nm未満の膜厚で形成されている有機膜層(B)が、スピンコーティング膜であることを特徴とする請求項1又は請求項2に記載のウエハ加工体。
- 前記有機膜層(B)が、5〜50nmの膜厚で形成されたものであることを特徴とする請求項1から請求項3のいずれか1項に記載のウエハ加工体。
- 前記有機膜層(B)は、前記蛍光剤以外の含有成分として、熱可塑性オルガノポリシロキサン重合体を含むものであることを特徴とする請求項1から請求項4のいずれか1項に記載のウエハ加工体。
- 前記蛍光剤が、蛍光増白剤であることを特徴とする請求項1から請求項5のいずれか1項に記載のウエハ加工体。
- 表面に凹凸及び/又は保護有機膜層(A)が形成されているウエハ上に、有機膜層(B)を100nm未満の膜厚で形成した際の、前記ウエハ上における前記有機膜層(B)の被覆性を確認する方法であって、
前記有機膜層(B)を、紫外光を照射することで可視光を発光する蛍光剤を含有するものとし、
前記有機膜層(B)が形成されている前記ウエハに紫外光を照射し、該照射の際の発光状態によって前記有機膜層(B)の被覆性を確認することを特徴とするウエハ上における有機膜の被覆性確認方法。 - 表面に凹凸及び/又は保護有機膜層(A)が形成されているウエハ上に、有機膜層(B)を100nm未満の膜厚で形成する工程を含むウエハ加工体の製造方法であって、
前記有機膜層(B)を、紫外光を照射することで可視光を発光する蛍光剤を含有するものとすることを特徴とするウエハ加工体の製造方法。 - 前記形成する工程の後に、前記有機膜層(B)が形成されている前記ウエハに紫外光を照射し、該照射の際の発光状態によって前記有機膜層(B)の被覆性を確認する工程を含むことを特徴とする請求項8に記載のウエハ加工体の製造方法。
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JPH05331438A (ja) * | 1992-05-30 | 1993-12-14 | Sony Corp | 蛍光性接着剤及び接着剤の塗布状態検査方法、検査装置 |
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US8999817B2 (en) * | 2012-02-28 | 2015-04-07 | Shin-Etsu Chemical Co., Ltd. | Wafer process body, wafer processing member, wafer processing temporary adhesive material, and method for manufacturing thin wafer |
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