DE19525388A1 - Elektronikbauteil und Verfahren zu dessen Herstellung - Google Patents
Elektronikbauteil und Verfahren zu dessen HerstellungInfo
- Publication number
- DE19525388A1 DE19525388A1 DE19525388A DE19525388A DE19525388A1 DE 19525388 A1 DE19525388 A1 DE 19525388A1 DE 19525388 A DE19525388 A DE 19525388A DE 19525388 A DE19525388 A DE 19525388A DE 19525388 A1 DE19525388 A1 DE 19525388A1
- Authority
- DE
- Germany
- Prior art keywords
- electrode
- conductor
- insulating layer
- semiconductor chip
- inner conductor
- 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
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 382
- 239000004065 semiconductor Substances 0.000 title claims abstract description 291
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims description 100
- 239000000463 material Substances 0.000 claims description 48
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 36
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 238000002161 passivation Methods 0.000 claims description 11
- 238000005530 etching Methods 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical group [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 5
- 229910052753 mercury Inorganic materials 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 91
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 78
- 230000008569 process Effects 0.000 description 32
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 18
- 238000013461 design Methods 0.000 description 18
- 229910052710 silicon Inorganic materials 0.000 description 18
- 239000010703 silicon Substances 0.000 description 18
- 239000012777 electrically insulating material Substances 0.000 description 16
- 229910052737 gold Inorganic materials 0.000 description 13
- 239000010931 gold Substances 0.000 description 13
- 239000011347 resin Substances 0.000 description 13
- 229920005989 resin Polymers 0.000 description 13
- 239000011521 glass Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000005388 borosilicate glass Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 6
- 239000011889 copper foil Substances 0.000 description 6
- 239000000725 suspension Substances 0.000 description 6
- 238000002604 ultrasonography Methods 0.000 description 6
- 210000003608 fece Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000004382 potting Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 241000893313 Helochara delta Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- YUBJPYNSGLJZPQ-UHFFFAOYSA-N Dithiopyr Chemical compound CSC(=O)C1=C(C(F)F)N=C(C(F)(F)F)C(C(=O)SC)=C1CC(C)C YUBJPYNSGLJZPQ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 101100421142 Mus musculus Selenon gene Proteins 0.000 description 1
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 125000005619 boric acid group Chemical group 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Classifications
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- 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
- H01L24/85—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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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
- H01L21/563—Encapsulation of active face of flip-chip device, e.g. underfilling or underencapsulation of flip-chip, encapsulation preform on chip or mounting substrate
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- H01L23/495—Lead-frames or other flat leads
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- H01L2224/056—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
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Description
- a) Im Falle des herkömmlichen Verfahrens, bei dem die Ver bindung zwischen der Elektrode und dem Innenleiter über den Golddraht mit außerordentlich geringer Steifigkeit herge stellt wird, ist es erforderlich, den beiden elektrisch an zuschließenden Endabschnitten des Golddrahtes eine mechani sche Festigkeit zu geben, so daß aus diesem Grund die Ab messungen des angeschlossenen Teils die für die elektrische Verbindung benötigten Werte übersteigen. Folglich muß ent gegen der Erfordernis, den Dichtegrad der integrierten Schaltungen zu erhöhen, die Abmessung der Elektrode an dem Chip groß angesetzt werden. Dies steht der Miniaturisierung der Chips der integrierten Schaltungen entgegen.
- b) Im Falle des Verfahrens nach dem Stand der Technik, bei dem die Verbindung zwischen dem Innenleiter und der Elek trode über ein Element wie den Golddraht mit außerordent lich geringer Steifigkeit hergestellt wird, ist es erfor derlich, den Halbleiterchip und den Innenleiter einzugie ßen, um sowohl die elektrisch anzuschließenden Endab schnitte des Golddrahtes als auch den Golddraht selbst ge gen externe Belastungen zu schützen oder den Halbleiterchip selbst gegen die Umgebungseinflüsse zu schützen. Folglich werden die äußeren Abmessungen der Halbleitervorrichtung unvermeidbar bis zu einem bestimmten Wert vergrößert.
- c) Wegen der in der letzten Zeit hohen Integration der in tegrierten Schaltungen besteht die Tendenz zu einer Erhö hung der Anzahl der Elektroden für das Abführen von Signa len nach außen. Bei dem herkömmlichen Drahtbondeverfahren oder dem Verfahren zum Verbinden durch automatisches Film bonden (TAB) müssen jedoch zum Sicherstellen eines gewissen Grades an mechanischer Verbindungsfestigkeit die Dimensio nen der Elektrode bis zu vorbestimmten Dimensionen vergrö ßert werden, wodurch folglich die Dimensionen des ganzen Chips von der Anzahl der Elektroden abhängig sind, was wie derum der Miniaturisierung der Chips integrierter Schaltun gen entgegensteht.
- d) Falls die Anzahl der durch Herausführen der Innenleiter aus dem Vergußbereich heraus gebildeten Anschlußstifte grö ßer als 100 ist, treten selbst bei geänderter Anschlußge nauigkeit wegen des Drahtbondeverfahrens, bei dem der Ver bindungsvorgang für jede der Elektroden ausgeführt wird, Schwierigkeiten hinsichtlich der Prüfung auf, ob der Kon takt mit den Elektroden richtig ist oder nicht.
- e) Da es schwierig ist, den genauen Wert der mechanischen Festigkeit der an dem Verbindungsbereich durch das Ultra schall-Thermokompressionbonden oder das Thermokompressions bonden gebildeten Legierungsschicht zu ermitteln, ist es erforderlich, den Verbindungsbereich mit einem hohen Si cherheitsfaktor auszulegen. Aus diesem Grund ist unter Be rücksichtigung von Vibrationen während des Zusammenbaupro zesses, des Leergewichtes und anderer externer Kräfte eine ausreichen überschüssige Bemessung erforderlich, so daß da her eine Einschränkung hinsichtlich der Bemessung auftritt.
- f) Bei dem herkömmlichen Elektrodenanschlußverfahren muß der Anschlußvorgang wiederholt in einer Anzahl ausgeführt werden, die der Anzahl n der Elektroden oder der doppelten Anzahl der Elektroden, nämlich 2n entspricht. Sobald daher die Anzahl der Stifte der Halbleitervorrichtung größer wird, wird die für das Herstellen der Verbindungen benö tigte Zeit länger.
- 1) Durch Einbrennen und Ätzen werden an dem isolierenden Substrat 73 die Leiterbahnen 78 und die Anodenverbindungs teile 78′ sowie die Leiterbahnen 79 und die Anodenverbin dungsteile 79′ gebildet.
- 2) Durch Einbrennen und Ätzen werden an dem isolierenden Substrat 72 die Leiterbahnen 77 und die Anodenverbindungs teile 77′ gebildet und es werden weiterhin durch Einbrennen und Ätzen die Leiterbahnen 80 und die Anodenverbindungs teile 80′ an dem isolierenden Substrat 74 ausgebildet.
- 3) Durch Einbrennen und Ätzen werden an dem isolierenden Substrat 71 die Leiterbahnen 76 und die Anodenverbindungs teile 76′ gebildet.
- 4) Durch Einbrennen und Ätzen werden an dem isolierenden Substrat 75 die Leiterbahnen 81 und die Anodenverbindungs teile 81′ gebildet.
Claims (24)
ger als die Oberfläche der bei Erwärmung leitfähigen Iso lierschicht (2a) liegt, ein leitendes Material (2A; 2C) mit niedrigem Elastizitätsmodul aufgesetzt wird, wobei ein Teil des leitfähigen Materials aus der Oberfläche der Isolier schicht heraussteht.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19549563A DE19549563B4 (de) | 1994-07-12 | 1995-07-12 | Mehrschichtsubstrat und Verfahren zu dessen Herstellung |
DE19549750A DE19549750B4 (de) | 1994-07-12 | 1995-07-12 | Elektronikbauteil mit anodisch gebontetem Leiterrahmen |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JPP6-160350 | 1994-07-12 | ||
JP16035094A JP3383081B2 (ja) | 1994-07-12 | 1994-07-12 | 陽極接合法を用いて製造した電子部品及び電子部品の製造方法 |
DE19549563A DE19549563B4 (de) | 1994-07-12 | 1995-07-12 | Mehrschichtsubstrat und Verfahren zu dessen Herstellung |
DE19549750A DE19549750B4 (de) | 1994-07-12 | 1995-07-12 | Elektronikbauteil mit anodisch gebontetem Leiterrahmen |
Publications (2)
Publication Number | Publication Date |
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DE19525388B4 DE19525388B4 (de) | 2005-06-02 |
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DE19525388A Expired - Fee Related DE19525388B4 (de) | 1994-07-12 | 1995-07-12 | Elektronikbauteil mit anodisch gebondetem Leiterrahmen |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1038316A1 (de) * | 1997-12-05 | 2000-09-27 | The Charles Stark Draper Laboratory, Inc. | Integrierte schaltungsanordnung und herstellungsverfahren dafür |
WO2002061834A2 (en) * | 2001-01-30 | 2002-08-08 | Murata Manufacturing Co., Ltd. | Electronic part |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1038316A1 (de) * | 1997-12-05 | 2000-09-27 | The Charles Stark Draper Laboratory, Inc. | Integrierte schaltungsanordnung und herstellungsverfahren dafür |
WO2002061834A2 (en) * | 2001-01-30 | 2002-08-08 | Murata Manufacturing Co., Ltd. | Electronic part |
WO2002061834A3 (en) * | 2001-01-30 | 2003-06-12 | Murata Manufacturing Co | Electronic part |
US6815834B2 (en) | 2001-01-30 | 2004-11-09 | Murata Manufacturing Co., Ltd. | Electronic part |
Also Published As
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DE19525388B4 (de) | 2005-06-02 |
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