JP2021138611A - 半導体パッケージの製造方法 - Google Patents
半導体パッケージの製造方法 Download PDFInfo
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- JP2021138611A JP2021138611A JP2021079818A JP2021079818A JP2021138611A JP 2021138611 A JP2021138611 A JP 2021138611A JP 2021079818 A JP2021079818 A JP 2021079818A JP 2021079818 A JP2021079818 A JP 2021079818A JP 2021138611 A JP2021138611 A JP 2021138611A
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- Prior art keywords
- glass plate
- laminate
- coating layer
- oxide
- range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000004065 semiconductor Substances 0.000 title description 8
- 239000011521 glass Substances 0.000 claims abstract description 58
- 239000011247 coating layer Substances 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims abstract description 25
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 7
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 7
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims abstract description 7
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims abstract description 7
- 229910000484 niobium oxide Inorganic materials 0.000 claims abstract description 7
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 6
- 238000004544 sputter deposition Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 13
- 238000011156 evaluation Methods 0.000 description 9
- 238000002834 transmittance Methods 0.000 description 5
- 238000006124 Pilkington process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 238000005546 reactive sputtering Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007372 rollout process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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Abstract
Description
前記コーティング層が、窒化珪素、酸化チタン、アルミナ、酸化ニオブ、ジルコニア、インジウム・スズ酸化物、酸化珪素、フッ化マグネシウム及びフッ化カルシウムからなる群より選択される1以上の成分を含有し、
ガラス板の厚さdg及びコーティング層の厚さdcの比が、
dc/dg=0.05×10−3〜1.2×10−3の範囲にあり、
前記積層体の自重たわみ補正条件における曲率半径r1が、10m〜150mである積層体を提供する。
本発明の積層体に用いられるガラス板の組成は、特に限定されず、可視光透過率が高い公知の組成を使用できる。具体的には、波長400nm〜1000nmにおける透過率の最低値(T%)が60%以上のものが使用できる。
酸化物基準の質量%表示で、
SiO2:40%〜70%、
B2O3:0%〜15%、
MgO:0%〜10%、
CaO:0%〜10%、
SrO:0%〜13%、
BaO:0%〜40%、
Na2O:0%〜30%、
K2O:0%〜13%、
Al2O3:0.5%〜15%、
の範囲にある組成が挙げられる。
酸化物基準の質量%表示で、
SiO2:49%〜70%、
B2O3:4%〜13%、
MgO:0%〜0.5%、
CaO:0%〜8%、
SrO:0%〜8%、
BaO:0%〜13%、
Na2O:4%〜15%、
K2O:0.1%〜13%、
Al2O3:4%〜13%、
の範囲にある組成が挙げられる。
ガラス板は、本発明の積層体に用いられる。ガラス板は、例えば、前記ガラス組成を所定の形状(例えば、四角形状又は円盤状)の板に成形することで製造される。
本発明において、前記ガラス板に薄膜をコーティングすることで、コーティング層が形成される。コーティング層は、窒化珪素、酸化チタン、アルミナ、酸化ニオブ、ジルコニア、インジウム・スズ酸化物、酸化珪素、フッ化マグネシウム及びフッ化カルシウムからなる群より選択される1以上の成分を含有する。窒化珪素及び酸化チタンが可視光透過性及び積層体を反らせる効果に優れるため、好ましい。
本発明の積層体は、前記ガラス板及び前記コーティング層を有する。また、自重たわみ補正条件における曲率半径r1が10m〜150mであり、30m〜100mの範囲が好ましい。この範囲にあることで、寸法精度の高いWLPの製造が可能になる。
本発明の積層体は、前記ガラス板に前記コーティングを行うことで製造される。好ましい製造方法の具体例としては、図2に示すように、自重たわみ補正条件における曲率半径200m〜500mの反りを有するガラス板11の凸側に、窒化珪素、酸化チタン、アルミナ、酸化ニオブ、ジルコニア、インジウム・スズ酸化物、酸化珪素、フッ化マグネシウム及びフッ化カルシウムからなる群より選択される1以上の成分を含有する薄膜(コーティング層)12のコーティングを行う工程を有する条件である。この条件で製造することで、積層体10の自重たわみ補正条件における曲率半径r1が10m〜150m以下である積層体10を好適に得ることができる。
直径150mm(6inch)、板厚1.0mmの円盤状のガラス板に表1に記載の条件でコーティングを行ったものを使用した。
[ガラス板の厚さ(dg)及びコーティング層の厚さ(dc)の測定]
室温条件でレーザー変位計(神津精機社製Dyvoce)を用いて、コーティング前のガラス板及びコーティング後の積層体の厚さを測定し、dg及びdcを求めた。
サンプルをレーザー変位計(神津精機社製のDyvoce)を用いて、両面差分モードによる自重たわみ補正により求められたサンプル本来が持つ反り量を元に形状シミュレーションにより算出した。そして、シミュレーションで得られた形状から曲率半径を求めた。
コーティングによる反りは、一般にコーティング層が厚いほど大きくなる。そのため、反りの評価は、下記式に示すRについて行った。評価A〜Dのうち、A、B及びCを合格とした。
式:R=r1(m)×dc(μm)
評価:
A:R≦30、
B:30<R≦50、
C:50<R<70、
D:70≦R
サンプルを室温条件で分光透過率測定機(日本分光社製V−700)を用いて、波長400−1000nmにおける透過率の最低値(T%)を測定した。評価A〜Cのうち、A又はBを合格とした。
評価:
A:80%≦T、
B:60%≦T<80%、
C:T<60%
フロート法により組成1(質量%でSiO2:56.9%、Al2O3:8.1%、CaO:2.3%、SrO:12.3%、BaO:20.4%)のガラスの素板(縦横1000mm、厚さ1.4mm)を得た。前記素板の中心部から半径75mm(直径:150mm)の円型に切り抜き円盤状ガラス板とした。面取り加工した後に両面研磨機(浜井製作所社製16B−N/F)で研磨を行って板厚(dg)を1.0mmに調整した。このガラス板の曲率半径r0(フロート法由来)は、自重たわみ補正条件において370mであった。
表1に記載の条件に変更した以外は、実施例1と同様に操作を行った。評価結果を表1に示す。
・組成1:
SiO2:56.9%、
Al2O3:8.1%、
CaO:2.3%、
SrO:12.3%、
BaO:20.4%
・組成2:
SiO2:68.9%、
Al2O3:5.9%、
MgO:4.1%、
CaO:7.3%、
Na2O:14.6%、
K2O:0.2%
11 ガラス板
12 薄膜(コーティング層)
前記ガラス基板を用い半導体パッケージを製造する工程を備えた半導体パッケージの製造方法であって、
前記準備工程では、前記ガラス基板の一方の表面にコーティング層を形成する工程を備え、
前記コーティング層は、窒化珪素、酸化チタン、アルミナ、酸化ニオブ、ジルコニア、インジウム・スズ酸化物、酸化珪素、フッ化マグネシウム及びフッ化カルシウムからなる群より選択される1以上の成分を含有し、
前記ガラス板の厚さdgに対する前記コーティング層の厚さdcの比(dc/dg)が、0.05×10-3〜1.2×10 -3 であり、
前記積層体の自重たわみ補正条件における曲率半径r1が、10m〜150mである、
半導体パッケージの製造方法を提供する。
Claims (7)
- ガラス板及びコーティング層を有する積層体であって、
前記コーティング層が、窒化珪素、酸化チタン、アルミナ、酸化ニオブ、ジルコニア、インジウム・スズ酸化物、酸化珪素、フッ化マグネシウム及びフッ化カルシウムからなる群より選択される1以上の成分を含有し、
前記ガラス板の厚さdg及び前記コーティング層の厚さdcの比(dc/dg)が、0.05×10−3〜1.2×10−3の範囲にあり、
前記積層体の自重たわみ補正条件における曲率半径r1が、10m〜150mである積層体。 - 前記dgが、0.3mm〜3.0mmの範囲にあり、
前記dcが、0.05μm〜1.2μmの範囲にある請求項1に記載の積層体。 - 前記ガラス板に使用されるガラスの組成が、質量%で、
SiO2:40%〜70%、
B2O3:0%〜15%、
MgO:0%〜10%、
CaO:0%〜10%、
SrO:0%〜13%、
BaO:0%〜40%、
Na2O:0%〜30%、
K2O:0%〜13%、
Al2O3:0.5%〜15%、
の範囲にある請求項1又は2に記載の積層体。 - 前記積層体の形状が、四角形状又は円盤状である請求項1〜3のいずれか一項に記載の積層体。
- 前記積層体が、支持ガラス基板用である請求項1〜4のいずれか一項に記載の積層体。
- 自重たわみ補正条件における曲率半径r0が、200m〜500mの反りを有するガラス板の凸側に、窒化珪素、酸化チタン、アルミナ、酸化ニオブ、ジルコニア、インジウム・スズ酸化物、酸化珪素、フッ化マグネシウム及びフッ化カルシウムからなる群より選択される1以上の成分を含有する薄膜のコーティングを行う工程を有する請求項1〜5のいずれか一項に記載の積層体の製造方法。
- 前記コーティングの手法が、スパッタリング法である請求項6に記載の積層体の製造方法。
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