JP2019203925A - 感光性樹脂組成物、パターン形成方法、及び光半導体素子の製造方法 - Google Patents
感光性樹脂組成物、パターン形成方法、及び光半導体素子の製造方法 Download PDFInfo
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- JP2019203925A JP2019203925A JP2018097143A JP2018097143A JP2019203925A JP 2019203925 A JP2019203925 A JP 2019203925A JP 2018097143 A JP2018097143 A JP 2018097143A JP 2018097143 A JP2018097143 A JP 2018097143A JP 2019203925 A JP2019203925 A JP 2019203925A
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- 125000001298 n-hexoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000004718 n-hexylthio group Chemical group C(CCCCC)S* 0.000 description 1
- 125000006609 n-nonyloxy group Chemical group 0.000 description 1
- 125000006608 n-octyloxy group Chemical group 0.000 description 1
- 125000003935 n-pentoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 125000004712 n-pentylthio group Chemical group C(CCCC)S* 0.000 description 1
- 125000004706 n-propylthio group Chemical group C(CC)S* 0.000 description 1
- 125000005186 naphthyloxy group Chemical group C1(=CC=CC2=CC=CC=C12)O* 0.000 description 1
- 125000005029 naphthylthio group Chemical group C1(=CC=CC2=CC=CC=C12)S* 0.000 description 1
- 125000005246 nonafluorobutyl group Chemical group FC(F)(F)C(F)(F)C(F)(F)C(F)(F)* 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- MBAUOPQYSQVYJV-UHFFFAOYSA-N octyl 3-[4-hydroxy-3,5-di(propan-2-yl)phenyl]propanoate Chemical compound OC1=C(C=C(C=C1C(C)C)CCC(=O)OCCCCCCCC)C(C)C MBAUOPQYSQVYJV-UHFFFAOYSA-N 0.000 description 1
- 150000003961 organosilicon compounds Chemical class 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- 125000004043 oxo group Chemical group O=* 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- JGTNAGYHADQMCM-UHFFFAOYSA-N perfluorobutanesulfonic acid Chemical compound OS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F JGTNAGYHADQMCM-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- KTNLYTNKBOKXRW-UHFFFAOYSA-N phenyliodanium Chemical compound [IH+]C1=CC=CC=C1 KTNLYTNKBOKXRW-UHFFFAOYSA-N 0.000 description 1
- 125000003356 phenylsulfanyl group Chemical group [*]SC1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 125000003170 phenylsulfonyl group Chemical group C1(=CC=CC=C1)S(=O)(=O)* 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical group CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 150000003459 sulfonic acid esters Chemical class 0.000 description 1
- JAELLLITIZHOGQ-UHFFFAOYSA-N tert-butyl propanoate Chemical compound CCC(=O)OC(C)(C)C JAELLLITIZHOGQ-UHFFFAOYSA-N 0.000 description 1
- 125000002088 tosyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])S(*)(=O)=O 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- HKOLRKVMHVYNGG-UHFFFAOYSA-N tridecan-2-ol Natural products CCCCCCCCCCCC(C)O HKOLRKVMHVYNGG-UHFFFAOYSA-N 0.000 description 1
- AANIRNIRVXARSN-UHFFFAOYSA-M trifluoromethanesulfonate;trimethylsulfanium Chemical compound C[S+](C)C.[O-]S(=O)(=O)C(F)(F)F AANIRNIRVXARSN-UHFFFAOYSA-M 0.000 description 1
- TUODWSVQODNTSU-UHFFFAOYSA-M trifluoromethanesulfonate;tris[4-[(2-methylpropan-2-yl)oxy]phenyl]sulfanium Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC(OC(C)(C)C)=CC=C1[S+](C=1C=CC(OC(C)(C)C)=CC=1)C1=CC=C(OC(C)(C)C)C=C1 TUODWSVQODNTSU-UHFFFAOYSA-M 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 125000001889 triflyl group Chemical group FC(F)(F)S(*)(=O)=O 0.000 description 1
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- FAYMLNNRGCYLSR-UHFFFAOYSA-M triphenylsulfonium triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F.C1=CC=CC=C1[S+](C=1C=CC=CC=1)C1=CC=CC=C1 FAYMLNNRGCYLSR-UHFFFAOYSA-M 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- INRGAWUQFOBNKL-UHFFFAOYSA-N {4-[(Vinyloxy)methyl]cyclohexyl}methanol Chemical compound OCC1CCC(COC=C)CC1 INRGAWUQFOBNKL-UHFFFAOYSA-N 0.000 description 1
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14618—Containers
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0203—Containers; Encapsulations, e.g. encapsulation of photodiodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
- H01L33/56—Materials, e.g. epoxy or silicone resin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
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- G03F7/2002—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
- G03F7/2004—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image characterised by the use of a particular light source, e.g. fluorescent lamps or deep UV light
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Abstract
Description
1.(A)ビニルエーテル化合物、
(B)エポキシ基含有シリコーン樹脂、及び
(C)光酸発生剤
を含む感光性樹脂組成物。
2.(A)ビニルエーテル化合物の分子量が、50〜500である1の感光性樹脂組成物。
3.(B)エポキシ基含有シリコーン樹脂が、下記式(B1)〜(B6)で表される繰り返し単位を含むものである1又は2の感光性樹脂組成物。
4.0<e+f≦1である3の感光性樹脂組成物。
5.(A)成分の含有量が、(B)成分100質量部に対し、1〜1,000質量部である1〜4のいずれかの感光性樹脂組成物。
6.(C)成分の含有量が、(A)成分と(B)成分との合計100質量部に対し、0.05〜20質量部である1〜5のいずれかの感光性樹脂組成物。
7.更に、(D)溶剤を含む1〜6のいずれかの感光性樹脂組成物。
8.更に、(E)酸化防止剤を含む1〜7のいずれかの感光性樹脂組成物。
9.(i)1〜8のいずれかの感光性樹脂組成物を基板上に塗布し、該基板上に感光性樹脂皮膜を形成する工程、
(ii)前記感光性樹脂皮膜を、フォトマスクを介して露光する工程、及び
(iii)前記露光した感光性樹脂皮膜を、現像液を用いて現像する工程
を含むパターン形成方法。
10.9のパターン形成方法を含む、パターンが形成された感光性樹脂皮膜を備える光半導体素子の製造方法。
ビニルエーテル化合物は、分子中に酸素原子に結合したビニル基を少なくとも1つ有する化合物である。このような化合物としては、公知の化合物を使用できるが、炭素数3〜35のものが好ましく、例えば以下に例示する単官能又は多官能ビニルエーテルが好ましい。これらのうち、分子量50〜500のものが好ましい。
(B)成分のエポキシ基含有シリコーン樹脂としては、下記式(B1)〜(B6)で表される繰り返し単位(以下、繰り返し単位B1〜B6ともいう。)を含むものが好ましい。
(C)成分の光酸発生剤としては、光照射によって分解し、酸を発生するものであれば特に限定されないが、波長190〜500nmの光を照射することによって酸を発生するものが好ましい。(C)光酸発生剤は、硬化触媒として用いられる。前記光酸発生剤としては、例えば、オニウム塩、ジアゾメタン誘導体、グリオキシム誘導体、β−ケトスルホン誘導体、ジスルホン誘導体、ニトロベンジルスルホネート誘導体、スルホン酸エステル誘導体、イミド−イル−スルホネート誘導体、オキシムスルホネート誘導体、イミノスルホネート誘導体、トリアジン誘導体等が挙げられる。
本発明の感光性樹脂組成物は、その塗布性を向上させるために、(D)成分として溶剤を含んでもよい。(D)溶剤としては、前述した(A)〜(C)成分、及び後述する(E)成分やその他の各種添加剤を溶解することができるものであれば、特に限定されない。
本発明の感光性樹脂組成物は、添加剤として酸化防止剤を含んでもよい。酸化防止剤を含むことで、耐熱性を向上させることができる。前記酸化防止剤としては、ヒンダードフェノール系化合物、ヒンダードアミン系化合物等が挙げられる。
本発明の感光性樹脂組成物は、前述した各成分以外に、その他の添加剤を含んでもよい。添加剤としては、例えば、塗布性を向上させるために慣用されている界面活性剤が挙げられる。
本発明のパターン形成方法は、前記感光性樹脂組成物を用いるものであり、
(i)前述した感光性樹脂組成物を基板上に塗布し、該基板上に感光性樹脂皮膜を形成する工程、
(ii)前記感光性樹脂皮膜を、フォトマスクを介して露光する工程、及び
(iii)前記露光した感光性樹脂皮膜を、現像液を用いて現像する工程
を含むものである。この方法により微細パターンを得ることができる。
前記感光性樹脂組成物を用いて前記方法によって微細なパターン形成を行うことで、光半導体素子を製造することができる。また、前記感光性樹脂組成物から得られる皮膜は、透明性、耐光性及び耐熱性に優れ、該皮膜を備える光半導体素子は、発光ダイオード等の発光素子、フォトダイオード、光学センサー、CMOSイメージセンサー等の受光素子、光導波路等の光伝送デバイス等の光学デバイスに好適に用いられる。前記皮膜は、波長405nmの光の透過率が92.0%以上であることが好ましく、96.0%以上であることがより好ましく、98.0%以上であることが特に好ましい。
[合成例1]樹脂B−1の合成
攪拌機、温度計、窒素置換装置及び還流冷却器を具備した3Lフラスコに、化合物(S−5)265.0g(1.00モル)を加えた後、トルエン2,000gを加え、70℃まで加熱した。その後、塩化白金酸トルエン溶液(白金濃度0.5質量%)1.0gを投入し、化合物(S−1)164.9g(0.85モル)及び化合物(S−2)(y1=40、信越化学工業(株)製)453.0g(0.15モル)を1時間かけて滴下した(ヒドロシリル基の合計/アルケニル基の合計=1/1(モル比))。滴下終了後、100℃まで加熱し、6時間熟成した後、反応溶液からトルエンを減圧留去し、樹脂B−1を得た。樹脂B−1は、1H−NMR及び29Si−NMR(Bruker社製)並びにGPC測定により、構造を確認した。樹脂B−1のMwは65,000、シリコーン含有率は51.3質量%であった。
攪拌機、温度計、窒素置換装置及び還流冷却器を具備した3Lフラスコに、化合物(S−3)111.6g(0.60モル)、化合物(S−4)156.8g(0.40モル)を加えた後、トルエン2,000gを加え、70℃まで加熱した。その後、塩化白金酸トルエン溶液(白金濃度0.5質量%)1.0gを投入し、化合物(S−1)135.8g(0.70モル)及び化合物(S−2)(y1=40、信越化学工業(株)製)906.0g(0.30モル)を1時間かけて滴下した(ヒドロシリル基の合計/アルケニル基の合計=1/1(モル比))。滴下終了後、100℃まで加熱し、6時間熟成した後、反応溶液からトルエンを減圧留去し、樹脂B−2を得た。樹脂B−2は、1H−NMR及び29Si−NMR(Bruker社製)並びにGPC測定により、構造を確認した。樹脂B−2のMwは55,000、シリコーン含有率は77.7質量%であった。
攪拌機、温度計、窒素置換装置及び還流冷却器を具備した3Lフラスコに、化合物(S−3)111.6g(0.60モル)、化合物(S−5)106.0g(0.40モル)を加えた後、トルエン2,000gを加え、70℃まで加熱した。その後、塩化白金酸トルエン溶液(白金濃度0.5質量%)1.0gを投入し、化合物(S−1)174.6g(0.90モル)及び化合物(S−2)(y1=40、信越化学工業(株)製)302.0g(0.10モル)を1時間かけて滴下した(ヒドロシリル基の合計/アルケニル基の合計=1/1(モル比))。滴下終了後、100℃まで加熱し、6時間熟成した後、反応溶液からトルエンを減圧留去し、樹脂B−3を得た。樹脂B−3は、1H−NMR及び29Si−NMR(Bruker社製)並びにGPC測定により、構造を確認した。樹脂B−3のMwは50,000、シリコーン含有率は59.6質量%であった。
攪拌機、温度計、窒素置換装置及び還流冷却器を具備した3Lフラスコに、化合物(S−4)392.0g(1.00モル)を加えた後、トルエン2,000gを加え、70℃まで加熱した。その後、塩化白金酸トルエン溶液(白金濃度0.5質量%)1.0gを投入し、化合物(S−1)155.2g(0.80モル)及び化合物(S−2)(y1=20、信越化学工業(株)製)317.0g(0.20モル)を1時間かけて滴下した(ヒドロシリル基の合計/アルケニル基の合計=1/1(モル比))。滴下終了後、100℃まで加熱し、6時間熟成した後、反応溶液からトルエンを減圧留去し、樹脂B−4を得た。樹脂B−4は、1H−NMR及び29Si−NMR(Bruker社製)並びにGPC測定により、構造を確認した。樹脂B−4のMwは23,000、シリコーン含有率は36.7質量%であった。
攪拌機、温度計、窒素置換装置及び還流冷却器を具備した3Lフラスコに、化合物(S−4)274.4g(0.70モル)、化合物(S−5)79.5g(0.30モル)を加えた後、トルエン2,000gを加え、70℃まで加熱した。その後、塩化白金酸トルエン溶液(白金濃度0.5質量%)1.0gを投入し、化合物(S−1)58.2g(0.30モル)及び化合物(S−2)(y1=20、信越化学工業(株)製)1,109.5g(0.70モル)を1時間かけて滴下した(ヒドロシリル基の合計/アルケニル基の合計=1/1(モル比))。滴下終了後、100℃まで加熱し、6時間熟成した後、反応溶液からトルエンを減圧留去し、樹脂B−5を得た。樹脂B−5は、1H−NMR及び29Si−NMR(Bruker社製)並びにGPC測定により、構造を確認した。樹脂B−5のMwは42,000、シリコーン含有率は72.9質量%であった。
攪拌機、温度計、窒素置換装置及び還流冷却器を具備した3Lフラスコに、化合物(S−3)55.8g(0.30モル)、化合物(S−4)117.6g(0.30モル)、化合物(S−5)106.0g(0.40モル)を加えた後、トルエン2,000gを加え、70℃まで加熱した。その後、塩化白金酸トルエン溶液(白金濃度0.5質量%)1.0gを投入し、化合物(S−1)135.8g(0.70モル)及び化合物(S−2)(y1=20、信越化学工業(株)製)475.5g(0.30モル)を1時間かけて滴下した(ヒドロシリル基の合計/アルケニル基の合計=1/1(モル比))。滴下終了後、100℃まで加熱し、6時間熟成した後、反応溶液からトルエンを減圧留去し、樹脂B−6を得た。樹脂B−6は、1H−NMR及び29Si−NMR(Bruker社製)並びにGPC測定により、構造を確認した。樹脂B−6のMwは31,000、シリコーン含有率は59.6質量%であった。
[実施例1〜10、比較例1〜9]
表1及び2に記載した組成になるように、(A)成分として化合物A−1〜A−5又は化合物A'−1〜A'−5、(B)成分としてエポキシ基含有シリコーン樹脂B−1〜B−6、(C)成分として光酸発生剤C−1、(D)成分の溶剤としてシクロペンタノン、(E)成分の酸化防止剤としてE−1及びE−2を混合し、その後攪拌、溶解した後、テフロン(登録商標)製0.2μmフィルターで精密濾過を行って、感光性樹脂組成物を調製した。
ヘキサメチルジシラザンでプライム処理された8インチシリコンウエハー上に、スピンコーターを使用して、10μmの膜厚で各感光性樹脂組成物をコートした。組成物から溶剤を除去するため、基板をホットプレートにのせ、110℃で3分間加熱し、乾燥させた。得られた感光性樹脂皮膜に対してラインアンドスペースパターン及びコンタクトホールパターンを形成するためにマスクを介し、365nmの露光条件でコンタクトアライナ型露光装置を使用して露光した。光照射後、ホットプレートにより120℃で3分間PEBを行った後冷却し、前記基板をPGMEA(プロピレングリコールモノメチルエーテルアセテート)にて300秒間スプレー現像を行い、パターンを形成した。
8インチガラスウエハー上に、スピンコーターを使用して、30μmの膜厚で各感光性樹脂組成物をコートした。組成物から溶剤を除去するためガラスウエハーをホットプレートにのせ、110℃で3分間加熱し、乾燥させた。ガラスウエハーに塗布した組成物全面に対して、マスクを介さず、ズース・マイクロテック社のマスクアライナーMA8を用い、高圧水銀灯(波長360nm)を光源とする光を照射したのち、PEBを行い、プロピレングリコールモノメチルエーテルアセテートに浸漬した。この操作後に残った皮膜を更に190℃のオーブンで2時間加熱して、皮膜を得た。この皮膜について、分光光度計U-3900H((株)日立ハイテクサイエンス製)を用いて、波長405nmの光の透過率を測定した。結果を表5及び6に示す。
前記方法で得られたガラスウエハー上の皮膜からなるサンプルに150℃のオーブン中で、405nm、1Wのレーザーを当て続けて、初期を100%とした時の経時による波長405nmでの1,500時間後の光透過率の変化を調べた。結果を表7及び8に示す。
スピンコートにより各感光性樹脂組成物を塗布し、全面露光及びPEBを行ったシリコンウエハーの試験片を用意し、試験前の質量を測定した。その後、試験片を150℃に加熱したオーブンに2,000時間放置したのち、試験片を取り出し、試験後の質量を測定した。試験後質量変化率が0.5質量%未満だった場合を良好、質量変化率が0.5質量%以上だった場合を不良として判定した。結果を表9及び10に示す。
Claims (10)
- (A)ビニルエーテル化合物、
(B)エポキシ基含有シリコーン樹脂、及び
(C)光酸発生剤
を含む感光性樹脂組成物。 - (A)ビニルエーテル化合物の分子量が、50〜500である請求項1記載の感光性樹脂組成物。
- (B)エポキシ基含有シリコーン樹脂が、下記式(B1)〜(B6)で表される繰り返し単位を含むものである請求項1又は2記載の感光性樹脂組成物。
- 0<e+f≦1である請求項3記載の感光性樹脂組成物。
- (A)成分の含有量が、(B)成分100質量部に対し、1〜1,000質量部である請求項1〜4のいずれか1項記載の感光性樹脂組成物。
- (C)成分の含有量が、(A)成分と(B)成分との合計100質量部に対し、0.05〜20質量部である請求項1〜5のいずれか1項記載の感光性樹脂組成物。
- 更に、(D)溶剤を含む請求項1〜6のいずれか1項記載の感光性樹脂組成物。
- 更に、(E)酸化防止剤を含む請求項1〜7のいずれか1項記載の感光性樹脂組成物。
- (i)請求項1〜8のいずれか1項記載の感光性樹脂組成物を基板上に塗布し、該基板上に感光性樹脂皮膜を形成する工程、
(ii)前記感光性樹脂皮膜を、フォトマスクを介して露光する工程、及び
(iii)前記露光した感光性樹脂皮膜を、現像液を用いて現像する工程
を含むパターン形成方法。 - 請求項9記載のパターン形成方法を含む、パターンが形成された感光性樹脂皮膜を備える光半導体素子の製造方法。
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