JP2018536994A - 薄いはんだストップ層を備える電子部品及び製造方法 - Google Patents
薄いはんだストップ層を備える電子部品及び製造方法 Download PDFInfo
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- JP2018536994A JP2018536994A JP2018527165A JP2018527165A JP2018536994A JP 2018536994 A JP2018536994 A JP 2018536994A JP 2018527165 A JP2018527165 A JP 2018527165A JP 2018527165 A JP2018527165 A JP 2018527165A JP 2018536994 A JP2018536994 A JP 2018536994A
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- Prior art keywords
- stop layer
- support
- solder stop
- component
- electronic component
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- 229910000679 solder Inorganic materials 0.000 title claims abstract description 94
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims description 45
- 239000004020 conductor Substances 0.000 claims description 17
- 239000012778 molding material Substances 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims description 2
- 238000005304 joining Methods 0.000 claims 2
- 239000000758 substrate Substances 0.000 claims 1
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- 229920002120 photoresistant polymer Polymers 0.000 description 8
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- 238000010438 heat treatment Methods 0.000 description 5
- 238000005240 physical vapour deposition Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
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- H01L2224/16059—Shape in side view comprising protrusions or indentations
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- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16135—Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/16145—Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
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- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/16225—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/16227—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation the bump connector connecting to a bond pad of the item
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- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/16225—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/16238—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation the bump connector connecting to a bonding area protruding from the surface of the item
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- H01L2224/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
- H01L2224/8119—Arrangement of the bump connectors prior to mounting
- H01L2224/81192—Arrangement of the bump connectors prior to mounting wherein the bump connectors are disposed only on another item or body to be connected to the semiconductor or solid-state body
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- H01L2224/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
- H01L2224/818—Bonding techniques
- H01L2224/81801—Soldering or alloying
- H01L2224/81815—Reflow soldering
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- H01L24/02—Bonding areas ; Manufacturing methods related thereto
- H01L24/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L24/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
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- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
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- H01L2924/181—Encapsulation
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- H01L2924/30—Technical effects
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- H01L2924/384—Bump effects
- H01L2924/3841—Solder bridging
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- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Geometry (AREA)
- Wire Bonding (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
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Abstract
【選択図】図13
Description
−上側面及び上側面上にメタライズされた接触面を備えた支持体を準備する工程と、
−上側面上にレジスト層を配置し、レジスト層の材料が接触表面上に残留したままとなり、かつ接触面がない表面の領域にレジスト層の材料が存在しないように、レジスト層を構造化する工程と、
−はんだストップ層を支持体の上側面上に堆積させる工程と、
−レジスト層の残存材料を、接触面を覆うはんだストップ層の材料と共に除去する工程と、を含む。
EB:電子部品
EK:電子コンポーネント
FL:フォトレジスト
KF:接触面
LO:はんだ付け可能表面
LP:はんだペースト
LSS:はんだストップ層
MK:メタライズされた接触面
MM:モールド材
O:支持体の上側面
SL:信号導体
TR:支持体
UBM:アンダーバンプメタライゼーション
Z:隙間
Claims (17)
- 電子部品(EB)であって、
−上側面(O)を備える支持体(TR)と、
−前記上側面(O)上のメタライズされた接触面(MK)と、
−前記上側面(O)の一部分を覆うが、前記接触面(MF)を覆わない、はんだストップ層(LSS)と、を備え、
−前記はんだストップ層(LSS)は、200nm以下の厚さを有する、電子部品。 - 前記はんだストップ層(LSS)は、30nm〜80nmの厚さを有する、請求項1に記載の部品。
- 前記メタライズされた接触面(MK)上にバンプ球(BU)を更に含む、請求項1又は2に記載の部品。
- 下側面に接触面(KF)を備える電子コンポーネント(EK)と、前記2つの接触面(MK、KF)を接合するバンプ接合体(BU)と、を更に含む、請求項1〜3のいずれか一項に記載の部品。
- 前記支持体(TR)の少なくとも一部分及び前記電子コンポーネント(EK)を被覆するモールド材(MM)を更に含む、請求項4に記載の部品。
- 前記モールド材(MM)は、前記電子コンポーネント(EK)と前記支持体(TR)との間の隙間(Z)もまた充填する、請求項5に記載の部品。
- −前記支持体(TR)の前記上側面(O)の前記接触面(MK)と相互接続された第1の信号導体(SL)と、
−前記支持体(TR)の前記上側面(O)の第2の信号導体(SL)と、を含み、
−2つの信号導体(SL)は、少なくとも部分的に前記はんだストップ層(LSS)によって被覆され、
−前記2つの信号導体(SL)間の電気抵抗は、100MΩ以上の値である、請求項1〜6のいずれか一項に記載の部品。 - 前記はんだストップ層(LSS)は、主成分としてケイ素を含むか、又はケイ素からなる、請求項1〜7のいずれか一項に記載の部品。
- 前記支持体(TR)の前記上側面(O)上に、40μm以上の高さを有する部品構造体が配置されている、請求項1〜8のいずれか一項に記載の部品。
- 電子部品(EB)の製造方法であって、
−上側面(O)及び前記上側面(O)上にメタライズされた接触面(MK)を備える支持体(TR)を準備する工程と、
−前記上側面(O)上にレジスト層(FL)を配置し、前記レジスト層(FL)の材料が前記接触面(MK)上に残留したままとなり、かつ前記接触面(MK)がない前記表面(O)の領域に前記レジスト層(FL)の前記材料が存在しないように、前記レジスト層(FL)を構造化する工程と、
−はんだストップ層(LSS)を前記支持体(TR)の前記上側面(O)上に堆積させる工程と、
−前記レジスト層(FL)の前記残留材料を、前記接触面(MK)を覆う前記はんだストップ層(LSS)の前記材料と共に除去する工程と、を含む、方法。 - 前記はんだストップ層(LSS)は、200nm以下の値の厚さを有する、請求項10に記載の方法。
- 前記はんだストップ層(LSS)は、20nm〜80nmの厚さを有する、請求項11に記載の方法。
- 前記はんだストップ層(LSS)は、主成分としてケイ素を含むか、又はケイ素からなる、請求項10〜12のいずれか一項に記載の方法。
- 前記電子部品(EB)は、更なるはんだ付け可能な金属表面(LO)を前記上側面上に有し、前記はんだストップ層(LSS)は、前記更なるはんだ付け可能な金属表面(LO)上に直接堆積される、請求項10〜13のいずれか一項に記載の方法。
- 前記はんだストップ層(LSS)は、PVD又はCVDを使用して塗布される、請求項10〜14のいずれか一項に記載の方法。
- −はんだペースト(LP)を少なくとも前記接触面(MK)上に配置する工程と、
−下側面に接触面(MK、KF)を備える電子コンポーネント(EK)を前記支持体(TR)の前記上側面(O)上に配置する工程と、
−前記部品(EB)をリフローはんだ付けし、前記2つの接触面(MK、KF)をバンプ接合体(BU)を使用して接合する工程と、を更に含む、請求項11〜15のいずれか一項に記載の方法。 - −前記電子コンポーネント(EK)をモールド材(MM)により包み込む工程を更に含み、
−前記モールド材(MM)は、前記コンポーネント(EK)と前記支持体(TR)との間の前記領域もまた充填する、請求項16に記載の方法。
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DE102015120647.1A DE102015120647B4 (de) | 2015-11-27 | 2015-11-27 | Elektrisches Bauelement mit dünner Lot-Stopp-Schicht und Verfahren zur Herstellung |
DE102015120647.1 | 2015-11-27 | ||
PCT/EP2016/070973 WO2017088998A1 (de) | 2015-11-27 | 2016-09-06 | Elektrisches bauelement mit dünner lot-stopp-schicht und verfahren zu seiner herstellung |
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- 2016-09-06 US US15/776,019 patent/US20180331062A1/en not_active Abandoned
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CN108369935A (zh) | 2018-08-03 |
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