JP3987029B2 - 半導体光素子の製造方法および半導体光素子 - Google Patents
半導体光素子の製造方法および半導体光素子 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims description 90
- 230000003287 optical effect Effects 0.000 title claims description 67
- 238000004519 manufacturing process Methods 0.000 title claims description 22
- 229920001721 polyimide Polymers 0.000 claims description 39
- 239000009719 polyimide resin Substances 0.000 claims description 39
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 20
- 239000011368 organic material Substances 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 229910052786 argon Inorganic materials 0.000 claims description 12
- 238000001312 dry etching Methods 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 7
- 229910052731 fluorine Inorganic materials 0.000 claims description 7
- 239000011737 fluorine Substances 0.000 claims description 7
- 238000005268 plasma chemical vapour deposition Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 3
- 239000012495 reaction gas Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000003071 parasitic effect Effects 0.000 description 5
- 238000002161 passivation Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 229910001882 dioxygen Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000001505 atmospheric-pressure chemical vapour deposition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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Description
本実施の形態においては、本発明の特徴を分かり易くするために、本発明者が本発明の前提として検討した技術との比較により説明する。図10〜図12は本発明の前提として検討した技術を示し、それぞれ、図10はリッジ導波路型半導体レーザの素子を示す外観図、図11,図12は図10の作製フローを示す図であり、図1,図2は本発明の実施の形態1を示し、それぞれ、図1はリッジ導波路型半導体レーザの素子において、ポリイミド樹脂上に針状突起物を形成する作製フローを示す図、図2はリッジ導波路型半導体レーザの素子を示す外観図、である。
本発明の実施の形態2は、前記実施の形態1において、パッド電極部分にのみ針状突起物を形成する場合であり、図3に基づいて説明する。図3は、リッジ導波路型半導体レーザの素子において、パッド電極部分にのみ針状突起物を形成する作製フローを示す図である。
本発明の実施の形態3は、前記実施の形態1において、針状突起物を形成したポリイミド樹脂とパッド電極の間に絶縁膜を挿入した場合であり、図4に基づいて説明する。図4は、ポリイミド樹脂とパッド電極の間に絶縁膜を挿入した場合のストライプ方向に対する断面図である。
本発明の実施の形態4は、前記実施の形態1〜3と異なり、有機材料上に針状突起物を形成しないパッド電極を有する構造において、パッド電極端を感光性ポリイミド樹脂を用いて固定する構造であり、図5に基づいて説明する。図5は、パッド電極端を感光性ポリイミド樹脂を用いて固定する構造の作製フローを示す図である。
本発明の実施の形態5は、前記実施の形態1〜4の半導体光素子を基本構造とした半導体レーザ、光増幅器、光変調器、光受光素子、またはこれらを組み合わせて一体集積した集積化半導体光素子に適用した場合であり、図6に基づいて説明する。図6は、リッジ導波路型変調器集積レーザの素子を示す外観図である。
本発明の実施の形態6は、前記実施の形態1〜5の半導体レーザおよび導波路受光素子をシリコン基板上に実装したレーザモジュール、変調器モジュール、または光受信モジュールからなる光送受信モジュールを作製した例に適用した場合であり、図7に基づいて説明する。図7は、半導体レーザを実装した光送受信モジュールを示す図である。
Claims (10)
- 半導体基板上に導波路となるメサを形成する工程と、
前記メサの両脇を有機材料で埋込む工程と、
前記有機材料上に針状突起物を形成する工程と、
前記針状突起物上に上部電極を形成する工程と、
前記半導体基板の裏面に下部電極を形成する工程と、を有することを特徴とする半導体光素子の製造方法。 - 請求項1記載の半導体光素子の製造方法において、
前記有機材料は、ポリイミド樹脂であることを特徴とする半導体光素子の製造方法。 - 請求項1記載の半導体光素子の製造方法において、
前記針状突起物は、ドライエッチングにより形成し、前記ドライエッチングの工程において、ドライエッチング装置の反応ガスに酸素/アルゴン混合ガスを使用し、フッ素系ガスを含まないことを特徴とする半導体光素子の製造方法。 - 請求項1記載の半導体光素子の製造方法において、
前記針状突起物は、前記上部電極のパッド電極部分にのみ形成し、前記パッド電極部分以外の有機材料上には針状突起物を形成しないことを特徴とする半導体光素子の製造方法。 - 請求項1記載の半導体光素子の製造方法において、
前記針状突起物の高さは、前記上部電極のパッド電極部分の膜厚よりも低いことを特徴とする半導体光素子の製造方法。 - 請求項1記載の半導体光素子の製造方法において、
前記有機材料と前記上部電極のパッド電極部分との間に絶縁膜を形成し、前記絶縁膜をプラズマCVD法により成膜することを特徴とする半導体光素子の製造方法。 - 半導体基板上に導波路となるメサを形成する工程と、
前記メサの両脇を有機材料で埋込む工程と、
前記有機材料上に上部電極を形成する工程と、
前記上部電極のパッド電極部分を感光性の有機材料で固定する工程と、
前記半導体基板の裏面に下部電極を形成する工程と、を有することを特徴とする半導体光素子の製造方法。 - 請求項1乃至7のいずれか1項に記載の半導体光素子の製造方法により製造されたことを特徴とする半導体光素子。
- 請求項8記載の半導体光素子を基本構造とした半導体レーザ、光増幅器、光変調器、光受光素子、またはこれらを組み合わせて一体集積したことを特徴とする集積化半導体光素子。
- 請求項8記載の半導体光素子を用い、
光導波路または光ファイバが設けられた実装基板上に前記半導体光素子を実装したレーザモジュール、変調器モジュール、または光受信モジュールからなることを特徴とする光送受信モジュール。
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JP3987029B2 true JP3987029B2 (ja) | 2007-10-03 |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP1965474B1 (en) * | 2007-02-27 | 2014-05-07 | Oclaro Japan, Inc. | Optical semiconductor device |
JP5001760B2 (ja) * | 2007-09-10 | 2012-08-15 | 日本オプネクスト株式会社 | 半導体素子の製造方法 |
JP6320676B2 (ja) * | 2013-01-30 | 2018-05-09 | 日本オクラロ株式会社 | 半導体光変調器及び光通信モジュール |
JP6920851B2 (ja) * | 2017-03-29 | 2021-08-18 | 日本ルメンタム株式会社 | 半導体光素子、光送信モジュール、光モジュール、及び光伝送装置、並びにそれらの製造方法 |
JP7309519B2 (ja) | 2019-08-13 | 2023-07-18 | 日本ルメンタム株式会社 | 半導体光素子 |
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