JPWO2020067299A1 - モジュールおよびその製造方法 - Google Patents
モジュールおよびその製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 229920005989 resin Polymers 0.000 claims abstract description 188
- 239000011347 resin Substances 0.000 claims abstract description 188
- 238000007789 sealing Methods 0.000 claims abstract description 101
- 239000000945 filler Substances 0.000 claims abstract description 78
- 229910052751 metal Inorganic materials 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 56
- 239000000758 substrate Substances 0.000 claims abstract description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 19
- 238000002161 passivation Methods 0.000 claims abstract description 19
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 14
- 150000003624 transition metals Chemical class 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 229910052809 inorganic oxide Inorganic materials 0.000 claims abstract description 10
- 125000004355 nitrogen functional group Chemical group 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 19
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- 239000002245 particle Substances 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 125000000524 functional group Chemical group 0.000 abstract 1
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- 238000005530 etching Methods 0.000 description 9
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- 239000004020 conductor Substances 0.000 description 7
- 239000003822 epoxy resin Substances 0.000 description 7
- 229920000647 polyepoxide Polymers 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- 230000003449 preventive effect Effects 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
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- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
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- 238000004544 sputter deposition Methods 0.000 description 1
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- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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Abstract
Description
図1〜図4を参照して、本発明に基づく実施の形態1におけるモジュールについて説明する。本実施の形態におけるモジュール101の断面図を図1に示す。モジュール101は、基板1と、電子部品3a,3bと、封止樹脂2と、シールド膜5とを備える。図1におけるZ1部の拡大図を図2に示す。窒素官能基を図3に示す。図中の「X」は、不動態金属であり遷移金属である金属の原子を意味する。図中の「O」は酸素原子を意味する。図1におけるZ2部の拡大図を図4に示す。
本実施の形態におけるモジュールの製造方法について説明する。本実施の形態におけるモジュールの製造方法は、主面1aおよび側面1cを有し、主面1aに電子部品が実装された基板1を用意する工程と、主面1aおよび前記電子部品を覆うように封止樹脂2を形成する工程と、封止樹脂2の表面および基板1の側面1cに窒素イオンを照射する工程と、封止樹脂2の表面および基板1の側面1cを覆うようにシールド膜5を形成する工程とを含み、封止樹脂2は、有機樹脂を主成分とする樹脂成分7と無機酸化物を主成分とする粒状のフィラー8とを含み、シールド膜5は、封止樹脂2との接触面に密着層5aを含み、密着層5aと接する封止樹脂2の表面では、フィラー8の一部の粒は部分的に樹脂成分7から露出しており、密着層5aは、不動態金属でありかつ遷移金属である金属または当該金属を含む合金で形成されている。樹脂成分7を構成する有機樹脂は、たとえばエポキシ樹脂であってよい。上述の各工程について図を参照しつつ説明する。
図18を参照して、本発明に基づく実施の形態2におけるモジュールについて説明する。本実施の形態におけるモジュールの基本的な構成は、実施の形態1で説明したものと同じである。実施の形態1に比べて、本実施の形態におけるモジュールでは、封止樹脂2の表面2uの状態が異なる。Z1部の部分拡大断面図を図18に示す。
図19を参照して、本発明に基づく実施の形態3におけるモジュールについて説明する。本実施の形態におけるモジュールの基本的な構成は、実施の形態1で説明したものと同じである。実施の形態1に比べて、本実施の形態におけるモジュールでは、以下の点が異なる。本実施の形態では、基板1の両面に何らかの部品が実装されている。本実施の形態では、封止樹脂が基板1の両面に形成されている。本実施の形態におけるモジュール102の断面図を図19に示す。
図21を参照して、本発明に基づく実施の形態4におけるモジュールについて説明する。本実施の形態におけるモジュールの基本的な構成は、実施の形態3で説明したものと同じである。実施の形態3に比べて、本実施の形態におけるモジュールでは、以下の点が異なる。
なお、今回開示した上記実施の形態はすべての点で例示であって制限的なものではない。本発明の範囲は請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更を含むものである。
Claims (10)
- 主面および側面を有する基板と、
前記主面に実装された電子部品と、
前記主面および前記電子部品を覆う封止樹脂と、
前記封止樹脂の表面および前記基板の前記側面を覆うシールド膜とを備え、
前記封止樹脂は、有機樹脂を主成分とする樹脂成分と、無機酸化物を主成分とする粒状のフィラーとを含み、
前記シールド膜と接する前記封止樹脂の表面では、前記フィラーの一部の粒は部分的に前記樹脂成分から露出しており、
前記樹脂成分の表面は窒素官能基を含み、
前記シールド膜は、不動態金属でありかつ遷移金属である金属または当該金属を含む合金で形成されている、モジュール。 - 前記シールド膜は、前記封止樹脂との接触面に密着層を含む、請求項1に記載のモジュール。
- 前記基板は、前記側面に露出するように電極を内蔵し、前記側面において前記電極と前記密着層とが電気的に接続されている、請求項2に記載のモジュール。
- 第1主面と前記第1主面とは反対側にある第2主面と側面とを有する基板と、
前記第1主面および前記第2主面にそれぞれ実装された電子部品と、
前記第1主面および前記電子部品を覆う第1封止樹脂と、
前記第2主面および前記電子部品を覆う第2封止樹脂と、
前記第1封止樹脂の表面、前記基板の前記側面および前記第2封止樹脂の側面を覆う第1シールド膜とを備え、
前記第1封止樹脂は、有機樹脂を主成分とする樹脂成分と、無機酸化物を主成分とする粒状のフィラーとを含み、
前記第1シールド膜と接する前記第1封止樹脂の表面では、前記フィラーの一部の粒は部分的に前記樹脂成分から露出しており、
前記樹脂成分の表面は窒素官能基を含み、
前記第1シールド膜は、不動態金属でありかつ遷移金属である金属または当該金属を含む合金で形成されている、モジュール。 - 前記第1シールド膜は、前記封止樹脂との接触面に密着層を含む、請求項4に記載のモジュール。
- 前記第2封止樹脂の表面を部分的に覆う第2シールド膜を備え、
前記第2封止樹脂の前記第2シールド膜と接する前記第2封止樹脂の表面では、前記フィラーの一部の粒は部分的に前記樹脂成分から露出している、請求項4に記載のモジュール。 - 前記第2シールド膜は、前記第2封止樹脂との接触面に密着層を含む、請求項6に記載のモジュール。
- 前記フィラーの粒が前記樹脂成分から露出する箇所では、前記粒の露出面は平坦になっている、請求項1から7のいずれかに記載のモジュール。
- 主面および側面を有し、前記主面に電子部品が実装された基板を用意する工程と、
前記主面および前記電子部品を覆うように封止樹脂を形成する工程と、
前記封止樹脂の表面および前記基板の前記側面に窒素イオンを照射する工程と、
前記封止樹脂の表面および前記基板の前記側面を覆うようにシールド膜を形成する工程とを含み、
前記封止樹脂は、有機樹脂を主成分とする樹脂成分と無機酸化物を主成分とする粒状のフィラーとを含み、
前記シールド膜と接する前記封止樹脂の表面では、前記フィラーの一部の粒は部分的に前記樹脂成分から露出しており、
前記シールド膜は、不動態金属でありかつ遷移金属である金属または当該金属を含む合金で形成されている、モジュールの製造方法。 - 前記フィラーの粒が前記樹脂成分から部分的に露出する前記封止樹脂の表面を、研削または研磨することによって、前記フィラーの粒の露出部分を平坦にする工程を含む、請求項9に記載のモジュールの製造方法。
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