DE10300344A1 - Solder stop lacquer structured using a laser for protecting conductors on circuit boards comprises a solid body, has a specified coating viscosity and contains a flame protection agent - Google Patents
Solder stop lacquer structured using a laser for protecting conductors on circuit boards comprises a solid body, has a specified coating viscosity and contains a flame protection agent Download PDFInfo
- Publication number
- DE10300344A1 DE10300344A1 DE10300344A DE10300344A DE10300344A1 DE 10300344 A1 DE10300344 A1 DE 10300344A1 DE 10300344 A DE10300344 A DE 10300344A DE 10300344 A DE10300344 A DE 10300344A DE 10300344 A1 DE10300344 A1 DE 10300344A1
- Authority
- DE
- Germany
- Prior art keywords
- coating
- roller
- laser
- lacquer
- solder mask
- 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.)
- Withdrawn
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 47
- 229910000679 solder Inorganic materials 0.000 title claims abstract description 45
- 239000011248 coating agent Substances 0.000 title claims abstract description 43
- 239000004922 lacquer Substances 0.000 title claims abstract description 23
- 239000007787 solid Substances 0.000 title claims abstract description 4
- 239000004020 conductor Substances 0.000 title claims description 21
- 239000011814 protection agent Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000012764 mineral filler Substances 0.000 claims abstract description 8
- 238000007761 roller coating Methods 0.000 claims abstract description 5
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims abstract 2
- 239000003973 paint Substances 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 5
- 238000010073 coating (rubber) Methods 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims 2
- 239000003822 epoxy resin Substances 0.000 claims 1
- 239000003063 flame retardant Substances 0.000 claims 1
- 239000002985 plastic film Substances 0.000 claims 1
- 229920006255 plastic film Polymers 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 238000010792 warming Methods 0.000 claims 1
- 238000005476 soldering Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 244000144619 Abrus precatorius Species 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000008199 coating composition Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/02—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
- B05C1/025—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles to flat rectangular articles, e.g. flat sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
- B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0091—Apparatus for coating printed circuits using liquid non-metallic coating compositions
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0104—Tools for processing; Objects used during processing for patterning or coating
- H05K2203/0143—Using a roller; Specific shape thereof; Providing locally adhesive portions thereon
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/15—Position of the PCB during processing
- H05K2203/1509—Horizontally held PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/15—Position of the PCB during processing
- H05K2203/1563—Reversing the PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/15—Position of the PCB during processing
- H05K2203/1572—Processing both sides of a PCB by the same process; Providing a similar arrangement of components on both sides; Making interlayer connections from two sides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/28—Applying non-metallic protective coatings
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
- Coating Apparatus (AREA)
Abstract
Description
Leiterplatten werden mit Lötstopplacken
insbesondere mit fotosensiblen Lötstopplacken
beschichtet, um die Leiter zu schützen und nur die zu lötenden Bohrungen
und Lotpads für
das Lotzinn freizulassen. Genügte
bis 1975 noch der Siebdruck, so hat sich ab diesem Zeitpunkt der
fotosensible Lötstopplack
durchgesetzt. Die erforderliche Genauigkeit bei den immer komplexer
werdenden Schaltungen konnte nur durch das Fotostrukturierungsverfahren
sichergestellt werden. Diese Lacke wurden bevorzugt im Vorhanggießverfahren einseitig
aufgetragen . Dies wurde in der europäischen Patentanmeldung
Die weiter fortschreitende Miniaturisierung
stellt diese Generation von Lötstopplacken
vor neue Probleme. Hierbei macht sich insbesondere die Unsicherheit
bei der Entwicklung negativ bemerkbar. All diese Probleme können durch
die Verwendung eines mittels Laser strukturierbaren Lötstopplackes
gelöst
werden. Hiermit werden nur die Lotpads und die Restringe der Bohrungen
mittels Kohlendioxidlaser vom Lack befreit. Ein Entwicklungsprozess
ist nicht erforderlich. Somit entsteht auch kein Polymerabfall.
Der Laser ist sehr genau zu positionieren. Probleme wie beim Filmversatz
können
nicht auftreten. Der Einsatz eines nicht fotosensiblen thermisch
härtbaren
Lötstopplackes
scheitert zur Zeit daran, dass kein Applikationsverfahren verfügbar ist,
mit dem eine Lackfreiheit der Bohrungen gewährleistet werden kann. In der
Eine Lackfreiheit der Bohrungen wird mit den derzeitigen Applikationsverfahren nicht sichergestellt. Füllstofffreie Lötstopplacke in halogenfreier Ausführung sind zur Zeit nicht verfügbar, sodass mit einer erheblichen Toxidität der Verbrennungsgase gerechnet werden muss.The holes are free of paint not ensured with the current application procedures. unfilled solder resists in halogen-free version are currently not available, so that a significant toxicity of the combustion gases is expected must become.
Aufgabe der vorliegenden Erfindung ist es daher einen bevorzugt thermisch härtbaren Lötstopplack sowie ein Verfahren und eine Vorrichtung verfügbar zu machen, das eine rückstandsfreie Strukturierung mittels Lasern ermöglicht und bei dem mit niedriger Lackschichtdicke eine gute Kantenabdeckung bei schmalen und hohen Leitern, eine fehlerfrei geschlossene Lackoberfläche sowie eine gleichzeitige Lackfreiheit der Bohrungen und Leiterplattenränder bei Halogenfreiheit des Lackes gewährleistet werden kann.It is therefore an object of the present invention to make available a preferably thermally curable solder resist as well as a method and a device which use a residue-free structuring Lasering enables and with a low lacquer layer thickness a good edge coverage with narrow and high conductors, a flawlessly closed lacquer surface as well as a simultaneous lacquer-free of the holes and PCB edges with halogen-free lacquer can be guaranteed.
Die Lösung all dieser Probleme erfolgt
durch einen mittels Laser strukturierbaren bevorzugt thermisch härtbaren
Lötstopplack
nach Anspruch (
Die Erfindung wird wie folgt beschrieben:
Ein
bevorzugt thermisch härtbarer
Lötstopplack
(
A preferably thermally curable solder mask (
Bei der Beschichtung mit thermisch härtbarem pulverförmigen Lötstopplack. werden alle Walzen und die zu beschichtende Leiterplatte auf die Temperatur erwärmt, mit der die erforderliche Beschichtungsviskosität erreicht wird.When coating with thermal curable powdery Solder resist. all the rollers and the circuit board to be coated are placed on the Temperature warmed, with which the required coating viscosity is achieved.
Bei dieser hochviskosen Beschichtung
wird aufgrund der hohen Lackhaftung an der Gummierung nur ein Teil
der auf der Auftragswalze befindlichen Lackschicht übertragen.
Vorraussetzung für
die Lackübertragung
ist die Haftung an der zu beschichtenden Leiterplattenoberfläche. Da
diese auf den Kupferleitern (
Nach dieser erfindungsgemäßen Beschichtung
wird die Leiterplatte (
Dies wird erfindungsgemäß dadurch erreicht, dass der Lack einen Anteil eines hochsiedenden Lösungsmittels mit einem Siedepunkt von größer 120 °C in einer Menge von 5 bis 20 Gew.-% enthält und nicht mit mineralischen Füllstoffen ausgestattet ist Bei dem pulverförmigen Lötstopplack wird dies durch eine Viskositätserniedrigung auf unter 500 m Pas erreicht. Die Freiheit an mineralischen Füllstoffen ermöglicht auch eine Laserstrukturierung ohne pilzartige Ascherückstände auf den lötfähigen Kupferflächen.This is achieved according to the invention in that the paint contains and does not contain a proportion of a high-boiling solvent with a boiling point greater than 120 ° C. in an amount of 5 to 20% by weight is equipped with mineral fillers. With the powdered solder resist, this is achieved by lowering the viscosity to less than 500 m Pas. The freedom in mineral fillers also enables laser structuring without fungal ash residues on the solderable copper surfaces.
Beispiel 1 example 1
Viskosität : 7500 m Pas bei 25 °C
Walzenbeschichtungsanlage
: RC Fa. Robert Bürkle
GmbH Freudenstadt
Gummierung Dicke: 10 mm,
Härte :30
Shore A , Rz 5 μm
Spaltbreite
zwischen den Dosierwalzen (
Nassauftrag
: 50μm
Übertrag
: 42 Vol%
Teflonfolie über
Dosierwalze (
Geschwindigkeit:
2 m/min
IR-Strahler : Enter Strahler 2 μm Wellenlänge zweiter Strahler 4 μm Wellenlänge
Umlufttemperatur
: 120 °C
Trocknerlänge : 4
mViscosity: 7500 m Pas at 25 ° C
Roll coating system: RC from Robert Bürkle GmbH Freudenstadt
Rubberization thickness: 10 mm,
Hardness: 30 Shore A, Rz 5 μm
Gap between the metering rollers (
Wet application: 50μm
Carryover: 42 vol%
Teflon film over metering roller (
Speed: 2 m / min
IR emitter: Enter emitter 2 μm wavelength second emitter 4 μm wavelength
Forced air temperature: 120 ° C
Dryer length: 4 m
Beispiel 2 Example 2
Schmelzbereicht : 65-78 °C
Viskosität : 14 000
m Pas bei 110 °C
Korngröße : 10 – 20 μm TG nach
der Härtung
1 Stunde 160 °C
: 160 °C
Walzenbeschichtungsanlage
: H RC Fa. Robert Bürkle
GmbH Freudenstadt
Gummierung Dicke: 10 mm,
Härte :30
Shore A , Rz 5 μm
Temperatur
der Auftragswalze (
Temperatur
der Leiterplatte : 110 °C
Teflonfolie über Dosierwalze
(
Spaltbreite
zwischen den Dosierwalzen (
Trockenauftrag
: 30 μm
Übertrag
: 60 Vol.%
Geschwindigkeit : 3 m/min
IR-Strahler : Erster
Strahler 2 μm
Wellenlänge
zweiter Strahler 4 μm
Wellenlänge
Umlufttemperatur
: 140 °C
Trocknerlänge
: 4 m Melting range: 65-78 ° C
Viscosity: 14,000 m Pas at 110 ° C
Grain size: 10 - 20 μm TG after curing for 1 hour 160 ° C: 160 ° C
Roll coating system: H RC from Robert Bürkle GmbH Freudenstadt
Rubberization thickness: 10 mm,
Hardness: 30 Shore A, Rz 5 μm
Application roller temperature (
PCB temperature: 110 ° C
Teflon film over metering roller (
Gap between the metering rollers (
Dry application: 30 μm
Carryover: 60 vol.%
Speed: 3 m / min
IR emitter: first emitter 2 μm wavelength second emitter 4 μm wavelength
Circulating air temperature: 140 ° C dryer length: 4 m
Ergebnis:Result:
Erste Beschichtung:First coating:
Trockenfilmdicke : 30 μm
Kantenabdeckung
bei 100 μm
Leiterhöhe
: 11 μm
Bohrungen
Durchmesser 300 bis 1000μm
: lackfrei
Leiterplattenränder
: 5 mm lackfreiDry film thickness: 30 μm
Edge coverage at 100 μm conductor height: 11 μm
Bores diameter 300 to 1000μm: paint-free
PCB edges: 5 mm paint-free
Ergebnis:Result:
Zweite Beschichtung:Second coating:
Trockenfilmdicke : 30 μm
Kantenabdeckung
bei 100 μm
Leiterhöhe
: 12 μm
Bohrungen
Durchmesser 300 bis 1000μm
: lackfrei
Leiterplattenränder
: 5 mm lackfreiDry film thickness: 30 μm
Edge coverage at 100 μm conductor height: 12 μm
Bores diameter 300 to 1000μm: paint-free
PCB edges: 5 mm paint-free
Ergebnis Laserstrukturierung:Result laser structuring:
Kohlendioxidlaser : Lotpads frei
von Ascherückständen
Verbrennungsgase
: Frei von HalogenenCarbon dioxide laser: solder pads free of ash residues
Combustion gases: Free of halogens
Ergebnis LötungResult soldering
Bohrungen und Lotpads einwandfrei mit Lot benetzt.Bores and solder pads flawless wetted with solder.
Claims (13)
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10300344A DE10300344A1 (en) | 2002-10-14 | 2003-01-05 | Solder stop lacquer structured using a laser for protecting conductors on circuit boards comprises a solid body, has a specified coating viscosity and contains a flame protection agent |
| TW092128464A TWI290016B (en) | 2002-10-14 | 2003-10-13 | A process and an apparatus for coating printed circuit boards with laser-structurable, thermally curable solder stop lacquers and electroresists |
| EP03757973A EP1552730B1 (en) | 2002-10-14 | 2003-10-14 | Method and device for coating printed boards with solder stop lacquers and galvanoresists that can be laser-structured and thermally hardened |
| AU2003274002A AU2003274002A1 (en) | 2002-10-14 | 2003-10-14 | Method and device for coating printed boards with solder stop lacquers and galvanoresists that can be laser-structured and thermally hardened |
| JP2005501290A JP4347294B2 (en) | 2002-10-14 | 2003-10-14 | Method and apparatus for coating a printed circuit board with a laser structurable thermosetting solder stop lacquer and electroresist |
| DE50307530T DE50307530D1 (en) | 2002-10-14 | 2003-10-14 | METHOD AND DEVICE FOR COATING PCB LASER-STRUCTURABLE, THERMALLY-HARDENABLE SOLDERING TOP COATINGS AND GALVANORESISTS |
| AT03757973T ATE365442T1 (en) | 2002-10-14 | 2003-10-14 | METHOD AND DEVICE FOR COATING CIRCUIT BOARDS WITH LASER-STRUCTURABLE, THERMALLY CURED SOLDER STOP PAINTS AND GALVANEOUS RESISTANTS |
| KR1020057004858A KR100946973B1 (en) | 2002-10-14 | 2003-10-14 | Process and apparatus for coating laser-structured thermoset solder stop lacquer and electrical resistance on printed circuit boards |
| US10/531,394 US20070141263A1 (en) | 2002-10-14 | 2003-10-14 | Process and an apparatus for coating printed circuit boards with laser-structurable, thermally curable solder stop lacquers and electroresists |
| PCT/EP2003/011369 WO2004036967A1 (en) | 2002-10-14 | 2003-10-14 | Method and device for coating printed boards with solder stop lacquers and galvanoresists that can be laser-structured and thermally hardened |
| MYPI20033907 MY142182A (en) | 2002-10-14 | 2003-10-14 | Method and device for coating printed boards with solder stop lacquers and galvanoresists that can be laser-structured and thermally hardened |
| HK05106182.0A HK1073759B (en) | 2002-10-14 | 2003-10-14 | Method and device for coating printed boards with solder stop lacquers and galvanoresists that can be laser-structured and thermally hardened |
| CA002502140A CA2502140A1 (en) | 2002-10-14 | 2003-10-14 | Method and device for coating printed boards with solder stop lacquers and galvanoresists that can be laser-structured and thermally hardened |
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10247861.9 | 2002-10-14 | ||
| DE10247861 | 2002-10-14 | ||
| DE10250485.7 | 2002-10-29 | ||
| DE10250485 | 2002-10-29 | ||
| DE10252897.7 | 2002-11-12 | ||
| DE10252897 | 2002-11-12 | ||
| DE10300344A DE10300344A1 (en) | 2002-10-14 | 2003-01-05 | Solder stop lacquer structured using a laser for protecting conductors on circuit boards comprises a solid body, has a specified coating viscosity and contains a flame protection agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10300344A1 true DE10300344A1 (en) | 2004-04-22 |
Family
ID=32045588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10300344A Withdrawn DE10300344A1 (en) | 2002-10-14 | 2003-01-05 | Solder stop lacquer structured using a laser for protecting conductors on circuit boards comprises a solid body, has a specified coating viscosity and contains a flame protection agent |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE10300344A1 (en) |
| MY (1) | MY142182A (en) |
-
2003
- 2003-01-05 DE DE10300344A patent/DE10300344A1/en not_active Withdrawn
- 2003-10-14 MY MYPI20033907 patent/MY142182A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| MY142182A (en) | 2010-10-15 |
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