JP5910456B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP5910456B2 JP5910456B2 JP2012232979A JP2012232979A JP5910456B2 JP 5910456 B2 JP5910456 B2 JP 5910456B2 JP 2012232979 A JP2012232979 A JP 2012232979A JP 2012232979 A JP2012232979 A JP 2012232979A JP 5910456 B2 JP5910456 B2 JP 5910456B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/06—Structure, shape, material or disposition of the bonding areas prior to the connecting process of a plurality of bonding areas
- H01L2224/0601—Structure
- H01L2224/0603—Bonding areas having different sizes, e.g. different heights or widths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L2224/36—Structure, shape, material or disposition of the strap connectors prior to the connecting process
- H01L2224/37—Structure, shape, material or disposition of the strap connectors prior to the connecting process of an individual strap connector
- H01L2224/37001—Core members of the connector
- H01L2224/3701—Shape
- H01L2224/37011—Shape comprising apertures or cavities
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—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
- H01L2224/83—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 layer connector
- H01L2224/838—Bonding techniques
- H01L2224/83801—Soldering or alloying
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—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
- H01L2224/84—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 strap connector
- H01L2224/848—Bonding techniques
- H01L2224/84801—Soldering or alloying
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—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
- H01L24/84—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 strap connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1301—Thyristor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1305—Bipolar Junction Transistor [BJT]
- H01L2924/13055—Insulated gate bipolar transistor [IGBT]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1306—Field-effect transistor [FET]
- H01L2924/13091—Metal-Oxide-Semiconductor Field-Effect Transistor [MOSFET]
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Connection Or Junction Boxes (AREA)
Description
図1(a),(b)に示すように、半導体装置10は、下部電極を兼ねたヒートスプレッダ11上に半導体素子12が半田13を介して接合されている。この実施形態では半導体素子12としてIGBTが使用されており、半導体素子12はコレクタ電極(図示せず)が下面に位置する状態でヒートスプレッダ11に接合されている。半導体素子12の上面には半田13を介して上部電極としてのバスバー14が接合されている。半導体素子12は上面に上面電極としてエミッタ電極としての複数のパッド15及びゲート電極16を有し、図1(a)に示すように、バスバー14はゲート電極16が露出した状態で、エミッタ電極、即ちパッド15に接続されて半導体素子12の上面に接合されている。即ち、複数のパッド15は1つの半導体素子12の一面(上面)に設けられている。
先ず、ヒートスプレッダ11の一方の面に半導体素子12を、コレクタ電極を有するその下面において半田接合する。次に半導体素子12の上面にバスバー14を半田接合する。バスバー14を半田接合する際は、バスバー14の複数の貫通孔17がエミッタ電極としての複数のパッド15と対向するように、かつバスバー14とパッド15との間に所定の間隔(例えば、1mm程度)をあけて配置する。そして、溶融半田をシリンジのノズルから各貫通孔17に順に滴下する。ノズルの口径は1mm程度である。
(1)半導体装置10は、複数のパッド15に対して、複数の半田注入部(貫通孔17)を有するバスバー14が複数の半田注入部を介して滴下された溶融半田13aによって接合されたパッド15とバスバー14との接続構造を有する。そして、複数のパッド15は互いに一端が揃うように並設され、パッド15と対向するように形成された隣り合う半田注入部は、パッド15の一端からの距離が互いに異なるように形成されている。そのため、隣り合う半田注入部が複数のパッド15と直交する仮想線からの位置が互いに等しく配置された場合に比べて、隣り合う半田注入部の間隔が広くなる。したがって、半導体装置10の製造時、隣り合う溶融半田13aが互いに繋がることを防止するので、溶融半田13aが接続不良となることを防止することができる。具体的には、滴下後における隣り合う溶融半田13aが互いに繋がることを防止することができる。
(4)複数のパッド15は1つの半導体素子12の一面に設けられている。したがって、半導体装置10がIGBT等の半導体素子12を有する構成において、例えば、上面電極としてのエミッタ電極が複数に分かれたパッド15で構成される場合に対応することができる。
○ 複数のパッドの一端が揃っていなくてもよい。複数のパッドの一端が揃っていなくても半田注入部が、複数の前記パッドと直交する仮想線からの位置が互いに異なるように形成されていればよい。
(1)請求項1〜請求項4のいずれか一項に記載の発明において、前記パッドは半導体装置を構成する半導体素子としてのトランジスタの駆動電流が流れる電極を構成している。
Claims (4)
- 複数のパッドに対して、複数の半田注入部を有するバスバーが複数の前記半田注入部を介して滴下された溶融半田によって接合されたパッドとバスバーとの接続構造を有する半導体装置であって、
隣り合う前記半田注入部は、複数の前記パッドと直交する仮想線からの位置が互いに異なるように形成されていることを特徴とする半導体装置。 - 前記半田注入部は互い違いに配置されている請求項1に記載の半導体装置。
- 前記パッドは3つ以上設けられ、少なくとも隣り合う3つの前記半田注入部は前記仮想線に対して斜めの方向に延びる直線上に配置されている請求項1に記載の半導体装置。
- 前記複数のパッドは1つの半導体素子の一面に設けられている請求項1〜請求項3のいずれか一項に記載の半導体装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2012232979A JP5910456B2 (ja) | 2012-10-22 | 2012-10-22 | 半導体装置 |
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JP2012232979A JP5910456B2 (ja) | 2012-10-22 | 2012-10-22 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
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JP2014086501A JP2014086501A (ja) | 2014-05-12 |
JP5910456B2 true JP5910456B2 (ja) | 2016-04-27 |
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JP2012232979A Expired - Fee Related JP5910456B2 (ja) | 2012-10-22 | 2012-10-22 | 半導体装置 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109844936B (zh) | 2016-10-24 | 2023-12-15 | 三菱电机株式会社 | 半导体装置及其制造方法 |
JP6708190B2 (ja) * | 2017-09-05 | 2020-06-10 | 株式会社デンソー | 半導体モジュールの接合構造及び接合方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003218305A (ja) * | 2002-01-18 | 2003-07-31 | Sanken Electric Co Ltd | 半導体装置 |
JP4085768B2 (ja) * | 2002-10-08 | 2008-05-14 | トヨタ自動車株式会社 | 上部電極、パワーモジュール、および上部電極のはんだ付け方法 |
US6867481B2 (en) * | 2003-04-11 | 2005-03-15 | Fairchild Semiconductor Corporation | Lead frame structure with aperture or groove for flip chip in a leaded molded package |
JP4640345B2 (ja) * | 2007-01-25 | 2011-03-02 | 三菱電機株式会社 | 電力用半導体装置 |
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