JP2019087719A - 半導体パッケージ - Google Patents
半導体パッケージ Download PDFInfo
- Publication number
- JP2019087719A JP2019087719A JP2018044608A JP2018044608A JP2019087719A JP 2019087719 A JP2019087719 A JP 2019087719A JP 2018044608 A JP2018044608 A JP 2018044608A JP 2018044608 A JP2018044608 A JP 2018044608A JP 2019087719 A JP2019087719 A JP 2019087719A
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- JP
- Japan
- Prior art keywords
- ubm
- layer
- pad
- connection member
- semiconductor package
- 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.)
- Granted
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 204
- 238000002161 passivation Methods 0.000 claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
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- 229920005989 resin Polymers 0.000 claims description 43
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- 239000003566 sealing material Substances 0.000 claims description 17
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- 238000005272 metallurgy Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 description 51
- 229910052751 metal Inorganic materials 0.000 description 24
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- 238000007747 plating Methods 0.000 description 16
- 229910000679 solder Inorganic materials 0.000 description 15
- 239000000758 substrate Substances 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 238000001020 plasma etching Methods 0.000 description 10
- 239000010949 copper Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000010931 gold Substances 0.000 description 7
- 239000011810 insulating material Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 5
- 229910052737 gold Inorganic materials 0.000 description 5
- 238000007689 inspection Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 4
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
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- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 208000032365 Electromagnetic interference Diseases 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
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- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
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- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- QCEUXSAXTBNJGO-UHFFFAOYSA-N [Ag].[Sn] Chemical compound [Ag].[Sn] QCEUXSAXTBNJGO-UHFFFAOYSA-N 0.000 description 1
- -1 and the like Chemical compound 0.000 description 1
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Classifications
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- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
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- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
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Abstract
Description
図1は電子機器システムの例を概略的に示すブロック図である。
一般に、半導体チップは、数多くの微細電気回路が集積されているが、それ自体が半導体完成品としての役割を果たすことはできず、外部の物理的または化学的衝撃により損傷する可能性がある。したがって、半導体チップ自体をそのまま用いるのではなく、半導体チップをパッケージングして、パッケージ状態で電子機器などに用いている。
図3はファン−イン半導体パッケージのパッケージング前後を概略的に示した断面図であり、図4はファン−イン半導体パッケージのパッケージング過程を概略的に示した断面図である。
図7はファン−アウト半導体パッケージを概略的に示した断面図である。
1010 メインボード
1020 チップ関連部品
1030 ネットワーク関連部品
1040 その他の部品
1050 カメラ
1060 アンテナ
1070 ディスプレイ
1080 電池
1090 信号ライン
1100 スマートフォン
1101 本体
1110 メインボード
1120 部品
1130 カメラ
2200 ファン−イン半導体パッケージ
2220 半導体チップ
2221 本体
2222 接続パッド
2223 パッシベーション膜
2240 連結部材
2241 絶縁層
2242 配線パターン
2243 ビア
2250 パッシベーション層
2260 UBM層
2270 半田ボール
2280 アンダーフィル樹脂
2290 封止材
2500 メインボード
2301 インターポーザ基板
2302 インターポーザ基板
2100 ファン−アウト半導体パッケージ
2120 半導体チップ
2121 本体
2122 接続パッド
2140 連結部材
2141 絶縁層
2142 再配線層
2143 ビア
2150 パッシベーション層
2160 UBM層
2170 半田ボール
100 半導体パッケージ
111、112、113 半導体チップ
111P、112P、113P 接続パッド
111B、112B、113B バンプ
115 接続部材
120 連結部材
122、122a、122b、122c 再配線層
123、123a ビア
130 パッシベーション層
140 UBM層
142、142a、142b UBMパッド
R、R1、R2、R3 リセス
143 UBMビア
150 接続端子
160 封止材
170 アンダーフィル樹脂
210 キャリア
211 コア層
212、213 金属膜
220 樹脂層
Claims (24)
- 接続パッドを有する半導体チップと、
前記半導体チップが配置された第1面、及び前記第1面と反対方向に位置する第2面を有し、前記接続パッドと電気的に連結された再配線層を含む連結部材と、
前記連結部材の第1面に配置され、前記半導体チップを封止する封止材と、
前記連結部材の第2面に配置されたパッシベーション層と、
前記パッシベーション層に部分的に埋め込まれ、前記連結部材の前記再配線層に連結されたUBM(Under Bump Metallurgy)層と、を含み、
前記UBM層は、前記パッシベーション層に埋め込まれ、前記連結部材の前記再配線層に連結されたUBMビアと、前記UBMビアに連結され、前記パッシベーション層の表面から突出したUBMパッドと、を含み、
前記UBMビアは、前記UBMパッドと接する部分の幅が、前記再配線層と接する部分の幅に比べて小さい、半導体パッケージ。 - 前記UBMパッドの一部は前記パッシベーション層によって囲まれる、請求項1に記載の半導体パッケージ。
- 前記UBMパッドは、前記UBMビアに連結された第1面、及び前記第1面と反対方向に位置する第2面を有し、
前記UBMパッドの第2面は、前記パッシベーション層の露出した表面と略同一のレベルを有する、請求項1または2に記載の半導体パッケージ。 - 前記UBMビアと前記再配線層の接合強度が、前記UBMビアと前記UBMパッドの接合強度に比べて大きい、請求項1から3のいずれか一項に記載の半導体パッケージ。
- 前記UBMビアは、隣接した前記再配線層と一体化された構造を有する、請求項1から4のいずれか一項に記載の半導体パッケージ。
- 前記連結部材の厚さ方向の断面視において、前記UBMビアは略逆台形状である、請求項1から5のいずれか一項に記載の半導体パッケージ。
- 前記UBMパッドの露出した面にリセスを有する、請求項1から6のいずれか一項に記載の半導体パッケージ。
- 前記リセスは互いに分離された複数のリセスを含む、請求項7に記載の半導体パッケージ。
- 前記半導体チップの上面は前記封止材の上面に露出し、前記半導体チップの上面と前記封止材の上面が実質的に共平面を有する、請求項1から8のいずれか一項に記載の半導体パッケージ。
- 前記UBMビアは、それぞれのUBMパッドに連結された複数のUBMビアを含む、請求項1から9のいずれか一項に記載の半導体パッケージ。
- 互いに反対方向に位置する第1面及び第2面を有し、絶縁層、及び前記絶縁層に形成された再配線層を含む連結部材と、
前記連結部材の第1面上に配置され、前記再配線層と電気的に連結された接続パッドを有する半導体チップと、
前記連結部材の第1面に配置され、前記半導体チップを封止する封止材と、
前記連結部材の第2面に配置され、前記連結部材の前記再配線層に連結されたUBMビアと、
前記連結部材の第2面に配置され、前記UBMビアを埋め込むパッシベーション層と、
前記UBMビアに連結され、前記パッシベーション層の表面から突出したUBMパッドと、を含み、
前記UBMビアは、前記UBMビアと接する前記再配線層の部分と一体化された構造を有する、半導体パッケージ。 - 前記再配線層は、前記絶縁層内で互いに異なるレベルに位置する複数の再配線層を含み、
前記連結部材は、前記複数の再配線層を電気的に連結する少なくとも一つのビアを含む、請求項11に記載の半導体パッケージ。 - 前記少なくとも一つのビアは、前記連結部材の第2面に隣接した部分の幅に比べて、前記連結部材の第1面に隣接した部分の幅が大きい、請求項12に記載の半導体パッケージ。
- 前記UBMビアは、前記再配線層と接する部分の幅に比べて、前記UBMパッドと接する部分の幅が小さい、請求項12または13に記載の半導体パッケージ。
- 第1面、及び前記第1面と反対方向に位置する第2面を有する絶縁層と、
前記絶縁層に配置された再配線層と、
前記第2面に配置されたパッシベーション層と、
前記パッシベーション層に部分的に埋め込まれ、前記再配線層に連結されたUBM層と、を含み、
前記再配線層の一部は前記第1面に露出し、半導体チップの連結パッドに連結されるように構成され、
前記UBM層は、前記パッシベーション層に埋め込まれたUBMビアと、前記UBMビアに連結され、前記パッシベーション層の表面から突出したUBMパッドと、を含み、
前記UBMパッドと接する前記UBMビアの部分の幅が、前記再配線層と接する前記UBMビアの部分の幅に比べて小さい、連結部材。 - 前記UBMビアは、前記UBMビアと接する前記再配線層の部分と一体化された構造を有する、請求項15に記載の連結部材。
- 前記UBMビアは、前記UBMパッドのそれぞれに連結された複数のUBMビアを含む、請求項15または16に記載の連結部材。
- 前記再配線層は、前記絶縁層に異なるレベル上に配置された複数の再配線層を含み、前記連結部材は、前記複数の再配線層を互いに電気的に連結する少なくとも一つのビアを含む、請求項15から17のいずれか一項に記載の連結部材。
- コア層及び剥離層(release layer)を含むキャリア層に樹脂層を形成する段階と、
前記樹脂層上にUBMパッド、及び前記UBMパッドが埋め込まれたパッシベーション層を形成する段階と、
前記パッシベーション層から前記UBMパッドの一部が露出するように前記パッシベーション層に孔を形成する段階と、
前記パッシベーション層上に第1再配線層、及び前記第1再配線層が埋め込まれた第1絶縁層を形成することで、UBMビアが形成されるように前記第1再配線層の一部を前記UBMパッドと接するようにし、且つ前記第1絶縁層から前記第1再配線層の少なくとも一部を露出させる段階と、を含む、半導体パッケージのための連結部材の製造方法。 - 前記UBMパッドと接する前記UBMビアの部分の幅が、前記第1再配線層と接する前記UBMビアの部分の幅に比べて小さい、請求項19に記載の連結部材の製造方法。
- 前記絶縁層上に第2再配線層、及び前記第2再配線層が埋め込まれた第2絶縁層を形成することで、前記第2再配線層の一部を前記第1再配線層と接するようし、且つ前記第2絶縁層から前記第2再配線層の少なくとも一部を露出させる段階をさらに含む、請求項19または20に記載の連結部材の製造方法。
- 前記連結部材の厚さ方向の断面視において、前記UBMビアの断面は略逆台形状である、請求項19から21のいずれか一項に記載の連結部材の製造方法。
- 前記UBMパッドの露出した表面にリセスを形成する段階をさらに含む、請求項19から22のいずれか一項に記載の連結部材の製造方法。
- 半導体チップの接続パッドが前記第1絶縁層から露出した前記第1再配線層の部分と接するように前記第1絶縁層上に前記半導体チップを配置する段階をさらに含む、請求項19から23のいずれか一項に記載の連結部材の製造方法。
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Application Number | Priority Date | Filing Date | Title |
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