JP5861587B2 - 電子装置の製造方法 - Google Patents
電子装置の製造方法 Download PDFInfo
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- JP5861587B2 JP5861587B2 JP2012161521A JP2012161521A JP5861587B2 JP 5861587 B2 JP5861587 B2 JP 5861587B2 JP 2012161521 A JP2012161521 A JP 2012161521A JP 2012161521 A JP2012161521 A JP 2012161521A JP 5861587 B2 JP5861587 B2 JP 5861587B2
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- 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
- H01L24/42—Wire connectors; Manufacturing methods related thereto
- H01L24/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L24/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
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- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
- H01L2224/48465—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
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- H—ELECTRICITY
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- 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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/4905—Shape
- H01L2224/4909—Loop shape arrangement
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- H—ELECTRICITY
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- 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
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/4911—Disposition the connectors being bonded to at least one common bonding area, e.g. daisy chain
- H01L2224/49111—Disposition the connectors being bonded to at least one common bonding area, e.g. daisy chain the connectors connecting two common bonding areas, e.g. Litz or braid wires
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- H—ELECTRICITY
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- H01L2224/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies and for methods related thereto
- H01L2224/78—Apparatus for connecting with wire connectors
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- H—ELECTRICITY
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- 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
- H01L2224/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies and for methods related thereto
- H01L2224/78—Apparatus for connecting with wire connectors
- H01L2224/7825—Means for applying energy, e.g. heating means
- H01L2224/783—Means for applying energy, e.g. heating means by means of pressure
- H01L2224/78301—Capillary
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- H—ELECTRICITY
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- 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
- H01L2224/85—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 wire connector
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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
- H01L2224/85—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 wire connector
- H01L2224/8512—Aligning
- H01L2224/85148—Aligning involving movement of a part of the bonding apparatus
- H01L2224/85169—Aligning involving movement of a part of the bonding apparatus being the upper part of the bonding apparatus, i.e. bonding head, e.g. capillary or wedge
- H01L2224/8518—Translational movements
- H01L2224/85181—Translational movements connecting first on the semiconductor or solid-state body, i.e. on-chip, regular stitch
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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
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
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- Engineering & Computer Science (AREA)
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- Microelectronics & Electronic Packaging (AREA)
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Description
本発明の第1実施形態にかかる電子装置について、図1を参照して述べる。この電子装置は、第1接続点11を有する第1接続部材10と、第2接続点21を有する第2接続部材20と、第1および第2接続点11、12を接続する所定長さのワイヤ30、40とを有している。
図9を参照して、本発明の第2実施形態にかかる電子装置の製造方法の要部について述べる。上記第1実施形態では、複数本のワイヤ30、40は、互いに離れたものとしたが、本実施形態では、複数本のワイヤ30、40を互いに接触させて束ねた構成としている。
図10を参照して、本発明の第3実施形態にかかる電子装置について述べる。図10に示される装置は、上記図9の装置を一部変形したものである。
図11を参照して、本発明の第4実施形態にかかる2次接続工程におけるツール100の動きを説明する。図11では、ツール100の移動軌跡について、比較例としてxz平面内のみの移動軌跡を一点鎖線で示し、本実施形態におけるy方向へはみ出す移動を、破線の矢印で示している。また、ワイヤ30については、2時接続工程開始時を太い実線、ツール100降下に伴うものを太い破線で示してある。
図12を参照して、本発明の第5実施形態にかかる2次接続工程におけるツール100の動きを説明する。図12では、ツール100の移動軌跡について、比較例としてxz平面内のみの移動軌跡を一点鎖線で示し、本実施形態におけるy方向へはみ出す移動を、破線の矢印で示している。また、ワイヤ30については、2次接続工程開始時を太い実線、ツール100降下に伴うものを太い破線で示してある。
なお、第1接続点11と第2接続点21とは、xy平面を水平面とするxyz直交座標系においてxz平面内にてx方向に離間して配置されたものであればよい。つまり、上記第1実施形態のように、第2接続点21は第1接続点11よりも低い位置にあるもの以外にも、たとえば、逆に、第2接続点21は第1接続点11よりも高い位置にあってもよい。さらには、図11、図12に模式的に示されるように、両接続点11、21が同じ高さ、すなわちxy平面内に位置するものであってもよい。
11 第1接続点
20 第2接続部材
21 第2接続点
30 ワイヤ
100 ツール
T1 仮想頂点
Claims (5)
- 第1接続点(11)を原点とし、xy平面を水平面とするxyz直交座標系において、前記第1接続点と、前記第1接続点に対してxz平面内にてx方向に離間して配置された第2接続点(21)とを、ワイヤボンディング用のツール(100)を用いて、所定長さのワイヤ(30)で接続してなる電子装置の製造方法であって、
前記ツールで前記ワイヤを前記第1接続点に押し付けて接続する1次接続工程と、
前記ツールがxz平面からy方向にはみ出さないように、前記第1接続点から前記第1接続点の上方に位置する仮想頂点(T1)まで、前記ツールを引き上げることにより、前記所定長さとなるまで前記ツールから前記ワイヤを引き出す引き上げ工程と、
前記仮想頂点から前記第2接続点まで前記ツールを円弧状の軌跡を描いて降下させ、前記ワイヤを前記第2接続点に接続する2次接続工程と、を備え、
前記2次接続工程では、前記ツールの降下途中で前記ツールがxz平面からいったんy方向にはみ出し再びxz平面に戻るように、カーブを描きながら、前記ツールの降下を行うことを特徴とする電子装置の製造方法。 - 前記2次接続工程におけるカーブは、y方向に膨らんだ円弧状の曲線を軌跡とするものであることを特徴とする請求項1に記載の電子装置の製造方法。
- 前記電子装置は、xz平面にてx方向に離間して配置された前記第1接続点および前記第2接続点の組を複数個有し、前記第1接続点および前記第2接続点の各組について、前記ワイヤによる接続が行われているものであり、
前記2次接続工程において前記カーブを描きながら前記ツールの降下を行うことは、複数本の前記ワイヤのうち2本目以降に形成されるワイヤに適用されることを特徴とする請求項1または2に記載の電子装置の製造方法。 - 前記引き上げ工程では、いったん前記ツールをz方向に沿って前記第1接続点の上方に移動させ、続いて前記ツールをx方向に沿って前記第2接続点とは反対側に移動させて前記ワイヤを曲げるという動作を、行うことにより、前記ワイヤの途中部分に屈曲部(31、32)を形成することを特徴とする請求項1ないし3のいずれか1つに記載の電子装置の製造方法。
- 前記引き上げ工程における前記仮想頂点とは、前記第1接続点の直上に位置するものであることを特徴とする請求項1ないし4のいずれか1つに記載の電子装置の製造方法。
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Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0547820A (ja) * | 1991-08-15 | 1993-02-26 | Oki Electric Ind Co Ltd | ワイヤボンデイング方法 |
JPH1167808A (ja) * | 1997-08-21 | 1999-03-09 | Hitachi Ltd | 半導体装置の製造方法および半導体装置 |
US6391759B1 (en) * | 2000-04-27 | 2002-05-21 | Advanced Semiconductor Engineering, Inc. | Bonding method which prevents wire sweep and the wire structure thereof |
JP3946730B2 (ja) * | 2004-04-26 | 2007-07-18 | 株式会社カイジョー | ボンディングワイヤのループ形状及びそのループ形状を備えた半導体装置並びにワイヤボンディング方法 |
JP2007073937A (ja) * | 2005-08-12 | 2007-03-22 | Kaijo Corp | ボンディングワイヤのループ形状及びそのループ形状を備えた半導体装置並びにボンディング方法 |
US20100320592A1 (en) * | 2006-12-29 | 2010-12-23 | Sanyo Electric Co., Ltd. | Semiconductor device and method for manufacturing the same |
JP4957513B2 (ja) * | 2007-11-05 | 2012-06-20 | 富士通セミコンダクター株式会社 | 半導体装置及び半導体装置の製造方法 |
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