WO2001090679A1 - Zündvorrichtung - Google Patents
Zündvorrichtung Download PDFInfo
- Publication number
- WO2001090679A1 WO2001090679A1 PCT/DE2001/001844 DE0101844W WO0190679A1 WO 2001090679 A1 WO2001090679 A1 WO 2001090679A1 DE 0101844 W DE0101844 W DE 0101844W WO 0190679 A1 WO0190679 A1 WO 0190679A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ignition
- semiconductor chip
- circuit board
- chamber
- ignition chamber
- Prior art date
Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 238000001465 metallisation Methods 0.000 claims description 9
- 229910000679 solder Inorganic materials 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910003445 palladium oxide Inorganic materials 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
- F42B3/13—Bridge initiators with semiconductive bridge
Definitions
- the present invention relates to an ignition device for a gas generator of a restraint device in a vehicle, an ignition chamber filled with a pyrotechnic material being present and outside the ignition chamber a semiconductor chip in which, in addition to an ignition resistor, at least one circuit controlling it is integrated in such a way that thermal energy generated by the ignition resistor during an ignition process is transferred to the pyrotechnic material in the ignition chamber.
- Such an ignition device is e.g. B. from DE 198 06 915 AI or WO 99/02937 known.
- the ignition devices described in these two publications aim not only to accommodate a pyrotechnic charge and an ignition resistor responsible for its ignition, but also to accommodate circuit elements and circuits for power supply and / or diagnosis of the ignition device which are required for controlling the ignition resistor.
- Each of the ignition elements is installed in a known manner in a gas generator which inflates an airbag or activates a belt tensioner in the event of a trigger.
- WO 99/02937 In the ignition device described in WO 99/02937, several semiconductor chips are stacked one above the other and contacted with one another using flip-chip technology.
- the semiconductor chip which is closest to the ignition chamber filled with the pyrotechnic material is designed as an ignition resistor which generates thermal energy when current flows and thus ignites the pyrotechnic charge.
- WO 99/02937 does not disclose a specific arrangement of the semiconductor chip with the ignition resistor and the ignition chamber, so that the thermal energy emanating from the ignition resistor is transferred to the pyrotechnic charge in the ignition chamber.
- the ignition device is connected to a common bus line with other ignition devices, signal transmission via the bus line to other ignition devices should also be possible if an ignition device has already been activated.
- the signal transmission via the bus line even after the ignition of an ignition device for triggering further restraint devices or for one multi-stage triggering of restraint devices is possible, the circuit in the activated ignition device should not be completely destroyed, but should still allow signals to be forwarded on the bus line.
- the object of the application is therefore to specify an ignition device of the type mentioned at the beginning, the circuit means of which remain largely undamaged when ignited.
- the semiconductor chip provided with the ignition resistor is fixed on a circuit board, in that the circuit board with the side opposite the semiconductor chip is fixed on a wall of the ignition chamber and in that in the wall of the ignition chamber and there is an opening in the circuit board so that there is a passage between the ignition resistor applied to the semiconductor chip and the pyrotechnic material in the ignition chamber.
- the circuit board between the ignition chamber and the semiconductor chip and the ignition chamber wall protect the semiconductor chip against the high temperatures and pressures which arise in the ignition chamber when the pyrotechnic charge is ignited, so that the semiconductor chip, on which a plurality of circuit elements are integrated, largely ignites the pyrotechnic charge when the pyrotechnic charge is ignited is secured against destruction. If a daisy-chain bus system is used for the actuators of the restraint systems in the vehicle, the signal transmission would be carried out with at least partial functioning of the electrical circuit of an activated ignition device with the features listed above maintain the bus so that additional ignition devices on the bus line can also be activated subsequently.
- the semiconductor chip is preferably contacted with the circuit board using flip-chip technology, and a filler material is introduced between the circuit board and the semiconductor chip. This ensures optimal protection of the semiconductor chip against high temperature and high pressure during ignition.
- a web which surrounds the opening in the circuit board is expediently arranged between the semiconductor chip and the circuit board.
- This web is a barrier for the filling material between the semiconductor chip and the printed circuit board and also forms a boundary between the combustion chamber in which the ignition resistor is located and the other area of the semiconductor chip provided with further circuit elements.
- the web preferably consists of a solder material.
- the opening in the printed circuit board can be provided with a metallization and a ring of soldering material can be introduced both between the semiconductor chip and the metallization and between the wall of the ignition chamber and the metallization.
- the filler material between the circuit board and the semiconductor chip can be a capillary flux adhesive or an adhesive paste.
- the ignition delay between the ignition resistor and the pyrotechnic charge in the ignition chamber is as small as possible, it is expedient to introduce an inflammable contact material with pyrotechnic properties that is connected to the pyrotechnic material in the ignition chamber into the opening of the ignition chamber wall.
- FIG. 1 shows a longitudinal section through an ignition device and FIG. 2 shows a detail of the ignition device with a connection between a semiconductor chip, a printed circuit board and an ignition chamber.
- FIG. 1 of the drawing shows a longitudinal section through an ignition device for a gas generator of a restraint device (e.g. airbag, belt tensioner, etc.) in a vehicle.
- a restraint device e.g. airbag, belt tensioner, etc.
- an ignition chamber 1 which is filled with a pyrotechnic material 2. If the pyrotechnic material is ignited, an ignition flame passes through a predetermined breaking point 3 in one Wall of the ignition chamber 1 and ignites the gas-generating material present in a gas generator (not shown in the drawing). The resulting gas penetrates z. B. in a connected airbag and inflates it.
- a printed circuit board 5 - preferably a flexible printed circuit board - is soldered onto the wall 4 of the ignition chamber 1 pointing into the interior of the ignition device.
- a semiconductor chip 6 is contacted with this circuit board 5 on the side opposite the ignition chamber 1 using flip-chip technology.
- contact fields are provided on the printed circuit board 5 and on the semiconductor chip, which are connected to one another either by soldering.
- a part of the ignition chamber 1, the printed circuit board 5, the semiconductor chip 6 and the connecting pins 7 are jointly encased by a plastic body 8.
- the plastic body 8 is injection molded around a metal sleeve 17, which encloses the ignition chamber 1 in the upper area and is provided in the lower area with a plastic fixing part 18 for the connecting pins 7 emerging from the metal sleeve 17. Otherwise, the metal sleeve 17 forms a space for the semiconductor chip 6 and the printed circuit board 5.
- An ignition resistor 9 made of semiconductor material in the form of thin-film elements is applied to the upper side of the semiconductor chip 6 facing the printed circuit board 5.
- the ignition resistor 9 consists, for. B. from materials such as titanium, palladium, zirconium and copper oxide. Directly above the ignition element 9 are in the circuit board 5 and An opening 10, 11 is provided in the wall 4 of the ignition chamber 1. Through these two superposed openings 10 and 11, the thermal energy generated by the ignition resistor 9 is transferred into the ignition chamber 1 to the pyrotechnic material 2 present there.
- This filling material can be a capillary flow adhesive or a pasty adhesive. So that the filling material cannot get into the area of the ignition resistor 9, a web 14 is arranged between the semiconductor chip 6 and the printed circuit board 5 and surrounds the opening 10 in the printed circuit board 5 and the area of the ignition resistor 9 on the semiconductor chip 6.
- This web 14 consists of solder material.
- the web 14 also has the function of delimiting the combustion chamber, under which the ignition resistor 9 is located, from the other regions of the semiconductor chip 6 in order to protect the circuit elements integrated therein. As circuit elements such. B.
- the ignition resistor 9 is expediently located on the edge of the semiconductor chip 6, ie away from the other circuit components, so that they are not destroyed as much as possible when the ignition is started.
- the web 14 made of solder can either be applied to the printed circuit board 5 or to the semiconductor chip 6.
- one or more further soldering bars 15, 16 can be produced simultaneously with the bar 14, which serve for the electrical contact between the printed circuit board 5 and the semiconductor chip 6.
- FIG. 2 shows a section of the ignition device with a different design compared to FIG. 1 for the connection between the semiconductor chip 6, the printed circuit board 5 and the ignition chamber 1.
- a helium-tight seal of the combustion chamber can be created by providing the opening 10 in the printed circuit board 5 on the inside with a metallization (eg copper, zinc) 19 which extends over the edge of the opening 10 extends on the top and bottom of the circuit board 5 also.
- a first solder ring 20 connects the metallization 19 to the semiconductor chip 6, and a second solder ring 21 connects the metallization 19 to the wall 4 of the ignition chamber 1.
- Further solder joints 22, 23 can be provided to connect the circuit board 5 to the ignition chamber wall 4.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50104619T DE50104619D1 (de) | 2000-05-26 | 2001-05-16 | Zündvorrichtung |
JP2001586407A JP2003534523A (ja) | 2000-05-26 | 2001-05-16 | 点火装置 |
US10/048,250 US6578486B2 (en) | 2000-05-26 | 2001-05-16 | Igniter |
EP01943083A EP1290399B1 (de) | 2000-05-26 | 2001-05-16 | Zündvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10026329.1 | 2000-05-26 | ||
DE10026329A DE10026329A1 (de) | 2000-05-26 | 2000-05-26 | Zündvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001090679A1 true WO2001090679A1 (de) | 2001-11-29 |
Family
ID=7643788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/001844 WO2001090679A1 (de) | 2000-05-26 | 2001-05-16 | Zündvorrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US6578486B2 (de) |
EP (1) | EP1290399B1 (de) |
JP (1) | JP2003534523A (de) |
DE (2) | DE10026329A1 (de) |
WO (1) | WO2001090679A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10036455C2 (de) * | 2000-07-26 | 2002-06-20 | Willi Luebbers | Zündeinrichtung mit einer Sollburchstelle für einen Treibsatz des Gasgenerators einer Insassenschutzvorrichtung in Kraftfahrzeugen |
DE10211348A1 (de) * | 2002-03-14 | 2003-10-09 | Peter Lell | Anzündvorrichtung für eine pyrotechnische Baueinheit, insbesondere für eine Airbageinheit eines Kraftfahrzeugs |
DE10211347B4 (de) * | 2002-03-14 | 2007-01-04 | Lell, Peter, Dr.-Ing. | Anzündvorrichtung für eine pyrotechnische Baueinheit, insbesondere für eine Airbageinheit eines Kraftfahrzeugs |
DE10349888B4 (de) * | 2003-10-25 | 2006-10-05 | Adam Opel Ag | Codierte Zündeinheit für ein Airbag-Modul sowie damit ausgerüstetes Airbag-Modul für ein Kraftfahrzeug-Airbag-System |
WO2005100905A1 (ja) * | 2004-04-16 | 2005-10-27 | Nippon Kayaku Kabushiki Kaisha | 点火器及びこれを有するガス発生器 |
US7690303B2 (en) | 2004-04-22 | 2010-04-06 | Reynolds Systems, Inc. | Plastic encapsulated energetic material initiation device |
US8100043B1 (en) | 2008-03-28 | 2012-01-24 | Reynolds Systems, Inc. | Detonator cartridge and methods of use |
US8276516B1 (en) | 2008-10-30 | 2012-10-02 | Reynolds Systems, Inc. | Apparatus for detonating a triaminotrinitrobenzene charge |
US8607703B2 (en) * | 2010-04-09 | 2013-12-17 | Bae Systems Information And Electronic Systems Integration Inc. | Enhanced reliability miniature piston actuator for an electronic thermal battery initiator |
US8485097B1 (en) | 2010-06-11 | 2013-07-16 | Reynolds Systems, Inc. | Energetic material initiation device |
US8701557B2 (en) | 2011-02-07 | 2014-04-22 | Raytheon Company | Shock hardened initiator and initiator assembly |
US9038538B1 (en) * | 2012-02-28 | 2015-05-26 | Reynolds Systems, Inc. | Initiator assembly with gas and/or fragment containment capabilities |
JP5958915B2 (ja) * | 2013-03-29 | 2016-08-02 | 昭和金属工業株式会社 | 点火ユニットの製造方法 |
JP7152298B2 (ja) | 2018-12-25 | 2022-10-12 | サンコール株式会社 | 保護システム |
JP7209530B2 (ja) | 2018-12-25 | 2023-01-20 | サンコール株式会社 | 電流遮断システム |
DE102019101236A1 (de) * | 2019-01-17 | 2020-07-23 | Liebherr-Components Biberach Gmbh | Ansteuervorrichtung zum Auslösen zumindest einer Pyrosicherung sowie Energiespeicher mit einer solchen Pyrosicherung |
CN114267651A (zh) * | 2021-12-21 | 2022-04-01 | 北京智芯传感科技有限公司 | 一种预留装药室形式的桥膜式换能元封装结构 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999002937A1 (de) | 1997-07-09 | 1999-01-21 | Siemens Aktiengesellschaft | Anzünder |
DE19806915A1 (de) | 1998-02-19 | 1999-09-02 | Bosch Gmbh Robert | Zündvorrichtung für einen Gasgenerator einer Rückhalteeinrichtung |
DE19846110A1 (de) * | 1998-10-07 | 2000-04-20 | Bosch Gmbh Robert | Zündvorrichtung für Rückhaltemittel in einem Fahrzeug |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4422381A (en) * | 1979-11-20 | 1983-12-27 | Ici Americas Inc. | Igniter with static discharge element and ferrite sleeve |
US4831933A (en) * | 1988-04-18 | 1989-05-23 | Honeywell Inc. | Integrated silicon bridge detonator |
ZA946555B (en) * | 1993-05-28 | 1995-06-12 | Altech Ind Pty Ltd | An electric igniter |
US6178888B1 (en) * | 1998-01-20 | 2001-01-30 | Eg&G Star City, Inc. | Detonator |
US6166452A (en) * | 1999-01-20 | 2000-12-26 | Breed Automotive Technology, Inc. | Igniter |
US6467414B1 (en) * | 2001-06-29 | 2002-10-22 | Breed Automotive Technology, Inc. | Ignitor with printed electrostatic discharge spark gap |
-
2000
- 2000-05-26 DE DE10026329A patent/DE10026329A1/de not_active Withdrawn
-
2001
- 2001-05-16 US US10/048,250 patent/US6578486B2/en not_active Expired - Fee Related
- 2001-05-16 DE DE50104619T patent/DE50104619D1/de not_active Expired - Lifetime
- 2001-05-16 WO PCT/DE2001/001844 patent/WO2001090679A1/de active IP Right Grant
- 2001-05-16 EP EP01943083A patent/EP1290399B1/de not_active Expired - Lifetime
- 2001-05-16 JP JP2001586407A patent/JP2003534523A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999002937A1 (de) | 1997-07-09 | 1999-01-21 | Siemens Aktiengesellschaft | Anzünder |
DE19806915A1 (de) | 1998-02-19 | 1999-09-02 | Bosch Gmbh Robert | Zündvorrichtung für einen Gasgenerator einer Rückhalteeinrichtung |
DE19846110A1 (de) * | 1998-10-07 | 2000-04-20 | Bosch Gmbh Robert | Zündvorrichtung für Rückhaltemittel in einem Fahrzeug |
Also Published As
Publication number | Publication date |
---|---|
US6578486B2 (en) | 2003-06-17 |
EP1290399A1 (de) | 2003-03-12 |
EP1290399B1 (de) | 2004-11-24 |
DE50104619D1 (de) | 2004-12-30 |
JP2003534523A (ja) | 2003-11-18 |
US20020178956A1 (en) | 2002-12-05 |
DE10026329A1 (de) | 2001-11-29 |
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