DE2027469A1 - Manufacturing process for printed circuit boards and strip conductors - Google Patents
Manufacturing process for printed circuit boards and strip conductorsInfo
- Publication number
- DE2027469A1 DE2027469A1 DE19702027469 DE2027469A DE2027469A1 DE 2027469 A1 DE2027469 A1 DE 2027469A1 DE 19702027469 DE19702027469 DE 19702027469 DE 2027469 A DE2027469 A DE 2027469A DE 2027469 A1 DE2027469 A1 DE 2027469A1
- Authority
- DE
- Germany
- Prior art keywords
- room temperature
- minutes
- ppo
- activation
- immersion
- 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.)
- Pending
Links
Classifications
-
- 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/032—Organic insulating material consisting of one material
- H05K1/0326—Organic insulating material consisting of one material containing O
-
- 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
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
-
- 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
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/108—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by semi-additive methods; masks therefor
-
- 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
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/18—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material
- H05K3/181—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material by electroless plating
-
- 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
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
- H05K1/162—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed capacitors
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0209—Inorganic, non-metallic particles
-
- 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
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0779—Treatments involving liquids, e.g. plating, rinsing characterised by the specific liquids involved
- H05K2203/0783—Using solvent, e.g. for cleaning; Regulating solvent content of pastes or coatings for adjusting the viscosity
-
- 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
- H05K3/38—Improvement of the adhesion between the insulating substrate and the metal
- H05K3/381—Improvement of the adhesion between the insulating substrate and the metal by special treatment of the substrate
Description
"Herstellungsverfahren für Leiterplatten und Streifenleiter" Die Erfindung betrifft ein Verfahren zur Herstellung von Leiterplatten für gedruckte Schaltungen und von Streifenleitern der Mikrowellentechnik nach der Aufbaumethode. "Manufacturing process for printed circuit boards and strip conductors" Die The invention relates to a method for the production of printed circuit boards Circuits and strip conductors of microwave technology according to the construction method.
Bei der lieiterplattenherstellung nach der Aufbaumethode ist der Einsatz von Mischpolymerisaten bekanntlich Voraussetzung. Durch einen Ätzvorgang wird aus dem Mischpolymerisat eine Komponente herausgelöst, wodurch Kavernen entstehen, die eine gute Verankerung der Leiterbahnen beim nachfolgenden Herstellungsprozeß ( Aktivieren, chemische Verkupferung, galvanische Verstärkung ) ermöglichen. Da diese Mischpolymerisate wegen ihrer geringen Warmfestigkeit als Basismaterial für Leiterplatten nicht geeignet sind, beschichtet man geeignete Basiswerkstoffe mit Lacken, die diese Mischpolymerisate enthalten. Ein Verfahren dieser Art ist unter der Handeisbezeichnung "Noviganth"-Verfahren bekannt.In the production of literary plates according to the build-up method, the use of copolymers is known to be a prerequisite. An etching process turns off One component is dissolved out of the mixed polymer, creating caverns that good anchoring of the conductor tracks during the subsequent manufacturing process (activation, chemical copper plating, galvanic reinforcement). Since these copolymers Not suitable as a base material for printed circuit boards due to their low heat resistance suitable base materials are coated with paints, the contain these copolymers. A procedure of this kind is under the trade name "Noviganth" process known.
Für elektrisch hochwertige Anwendungen wird üblicherweise Leiterplattenmaterial aus ein- oder doppelseitig mit Kupfer kaschiertem Polytetrafluoräthylen verwendet. Dieses Leiterplattenmaterial ist - besonders bei den oft notwendigen kleinen Dickentoleranzen - sehr teuer.For high-quality electrical applications, printed circuit board material is usually used made of polytetrafluoroethylene clad with copper on one or both sides. This circuit board material is - especially with the often necessary small thickness tolerances - very expensive.
Ein weiteres elektrisch hochwertiges Leiterpiattenmaterial in Form von kupferkaschiertem Polyphenylenoxyd ist beispielsweise durch die US-Patentschrift 3 483 058 bekannt.Another electrically high quality printed circuit board material in shape of copper-clad polyphenylene oxide is disclosed, for example, in U.S. Patent 3 483 058 known.
Polyphenylenoxyd wird üblicherweise abgekürzt mit PPO bezeichnet. Auch hierfür ist der Preis sehr hoch.Polyphenylene oxide is usually abbreviated to PPO. The price for this is also very high.
Der Erfindung liegt die Aufgabe zugrunde, ein wirtschaftliches Herstellungsverfahren für Leiterplatten und Streifenleiter anzugeben, die in ihren elektrischen und mechanischen Eigenschaften mit den vorerwähnten Materialien vergleichbar sind.The invention is based on the object of an economical manufacturing process for printed circuit boards and strip conductors to specify in their electrical and mechanical Properties are comparable with the aforementioned materials.
Die Erfindung besteht bei dem Verfahren der eingangs erwähnten Art in der Verwendung von Polyphenylenoxyd als Basismaterial.The invention consists in the method of the type mentioned at the beginning in the use of polyphenylene oxide as the base material.
Der Vorteil des erfindungsgemäßen Verfahrens besteht neben der Wirtschaftlichkeit der Herstellung (Verbilligung um etwa den Faktor 10) insbesondere darin, daß man auf die beim Stand der Technik notwendigen, elektrisch minderwertigen Zwischenschichten verzichten kann Diese Zwischenschichten bei den bekannten Materialien sind üblicherweise Kupferoxyd, bzw. ein Adhesiv, sofern kaschiertes Material vorliegt; bei nach der Aufbaumethode hergestelltem Material besteht diese Zwischenschicht üblicherweise aus Mischpolymerisate enthaltendem Lack. Ferner entfällt bei der Erfindung die bei Verwendung von kaschiertem Material kritische Unterätzung der Flanken der Leiterplatten.The advantage of the process according to the invention consists in addition to its economy the production (cheaper by about a factor of 10) in particular that one on the electrically inferior intermediate layers necessary in the prior art can do without these intermediate layers in the known materials are usually Copper oxide, or an adhesive, if there is a laminated material; at after the This intermediate layer usually consists of the material produced by the construction method from varnish containing copolymers. Furthermore, the invention does not apply to Use of laminated material critical undercutting of the edges of the circuit boards.
Zweckmäßigerweise ist dem bei der Durchführung des erfindungsgemäßen Verfahrens verwendeten Polyphenylenoxyd ein Füllstoff, beispielsweise Titandioxyd, zugesetzt in einem gewichtsmäßigen prozentualem Anteil von beispielsweise etwa 15 %.This is expedient when carrying out the process according to the invention Process used polyphenylene oxide a filler, for example titanium dioxide, added in a percentage by weight of, for example, about 15 %.
Häufig ist es vorteilhaft, nach dem erfindungsgemäßen Verfahren lediglich Halbzeug herzustellen, das daraufhin in der erfindungsgemäßen oder in einer anderen an sich bekannten Weise weiter bearbeitbar ist; hierzu wird das erfindungsgemäße Verfahren nur bis zu dem Verfahrensschritt durchgeführt, der durch den gewünschten Vollkommenheitsgrad des Halbzeugs vorgegeben ist.It is often advantageous to use the method according to the invention only Manufacture semi-finished products, which then in the invention or in another can be further processed in a manner known per se; this will the Process according to the invention carried out only up to the process step by the desired degree of perfection of the semi-finished product is specified.
Die Herstellung von Leiterplatten nach dem erfindungsgemäßen Verfahren wird nachfolgend an Beispielen geschildert. In analoger Weise sind auch Streifenleiter herstellbar.The production of printed circuit boards by the method according to the invention is described below using examples. Strip conductors are also used in an analogous manner manufacturable.
Ausführungsbeispiel 1: a) Ausgangsmaterial sind Platten oder gespritzte Formteile aus PPO.Embodiment 1: a) The starting material is plates or injection-molded Molded parts made of PPO.
b) Ätzen mit Aromaten wie z.B. Benzol1 Tuluol oder mit Chlorwasserstoffen wie Dichloräthylen, Trichloräthylen, Chloroform, Methyl-Äthyl-Keton (NEK). Beim Ätzen mit NEK z.B. Ätzzeit 3 Minuten bei Raumtemperatur. b) Etching with aromatics such as benzene1 tuluene or with hydrogen chloride such as dichlorethylene, trichlorethylene, chloroform, methyl ethyl ketone (NEK). At the Etching with NEK e.g. etching time 3 minutes at room temperature.
c) Aktivieren durch Tauchen in einem Bad, bestehend aus Zinn-(II)-Chlorid in Salzsäure bei Raumtemperatur etwa 4 Minuten lang. c) Activation by immersion in a bath consisting of tin (II) chloride in hydrochloric acid at room temperature for about 4 minutes.
f) Chemisches Vcrkupfern bis zur gewünschten Leiterstärke. f) Chemical copper plating up to the required conductor thickness.
Die Arbeitsgänge b) und c) des Ausführungsbeispiels 2 sind in ihrer zeitlichen Reihenfolge auch miteinander vertauschbar.Operations b) and c) of embodiment 2 are in their chronological order can also be interchanged with one another.
PPO ist beispielsweise in der Zeitschrift "Plastverarbeiter", Heft 5/1965 auf Seite 287 kurz beschrieben, wo auch auf eine ältere einschlägige Veröffentlichung, in "Rubber & Plast", Age 45/12, 1964, 1458 hingewiesen ist. Das PPO C 1001 gemäß dieser Veröffentlichung eignet sich besonders vorteilhaft zur Verwendung beim erfindungsgemäßen Verfahren.PPO is for example in the magazine "Plastverarbeiter", booklet 5/1965 briefly described on page 287, which also refers to an older relevant publication, in "Rubber & Plast", Age 45/12, 1964, 1458 is referred to. The PPO C 1001 according to this publication is particularly advantageous for use in the invention Procedure.
das erfindungsgemäße Verfahren nur bis zu dem Verfahrensschritt durchgeführt, der durch den gewünschten Vollkommenheitsgrgad des Ralbzeugs vorgegeben ist, Die Herstellung von Leiterplatten nach dem erfindungsgemäßen Verfahren wird nachfolgend an Beispielen geschildert. In analoger Weise sind auch Streifenleiter herstellbar.the process according to the invention is only carried out up to the process step which is given by the desired degree of perfection of the rubbish, the Production of printed circuit boards by the method according to the invention is described below illustrated with examples. Striplines can also be produced in an analogous manner.
Ausführungsbeispiel 1: a) Ausgangsmaterial sind Platten oder gespritzte Formteile aus PPO.Embodiment 1: a) The starting material is plates or injection-molded Molded parts made of PPO.
b) Ätzen mit Aromaten wie z.B. Benzol, Tuluol oder mit Ohlorwasserstoffen wie Dichloräthylen, Trichloräthylen, Chloroform, Methyl-Äthyl-Keton (MEK). Beim Ätzen mit MEK z.B. Ätzzeit 3 Minuten bei Raumtemperatur0 c) Aktivieren durch Tauchen in einem Bad, bestehend aus Zinn-(II)-Chlorid in Salzsäure bei Rauntemperatur etwa 4 Minuten lang. b) Etching with aromatics such as benzene, tuluene or with hydrochloric acid such as dichlorethylene, trichlorethylene, chloroform, methyl ethyl ketone (MEK). At the Etching with MEK e.g. etching time 3 minutes at room temperature 0 c) Activation by immersion in a bath consisting of tin (II) chloride in hydrochloric acid at room temperature for example For 4 minutes.
f) Chemisches Vorkupfern bis zur gewünschten Leiterstärke. f) Chemical pre-copper up to the desired conductor thickness.
Die Arbeitsgänge b) und c) des Ausführungsbeispiels 2 sind in ihrer zeitlichen Reihenfolge auch miteinander vertauschbar.Operations b) and c) of embodiment 2 are in their chronological order can also be interchanged with one another.
PPO ist beispielsweise in der Zeitschrift "Plastverarbeiter", Heft 5/1965 auf Seite 287 kurz beschrieben, wo auch auf eine ältere einschlägige Veröffentlichung, in "Rubber & Plast", Age 45/12, 1964, 1458 hingewiesen ist. Das PPO C 1001 gemäß dieser Veröffentlichung eignet sich besonders vorteilhaft zur Verwendung beim erfindungsgemäßen Verfahren.PPO is for example in the magazine "Plastverarbeiter", booklet 5/1965 briefly described on page 287, which also refers to an older relevant publication, in "Rubber & Plast", Age 45/12, 1964, 1458 is referred to. The PPO C 1001 according to this publication is particularly advantageous for use in the invention Procedure.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702027469 DE2027469A1 (en) | 1970-06-04 | 1970-06-04 | Manufacturing process for printed circuit boards and strip conductors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702027469 DE2027469A1 (en) | 1970-06-04 | 1970-06-04 | Manufacturing process for printed circuit boards and strip conductors |
Publications (1)
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DE2027469A1 true DE2027469A1 (en) | 1971-12-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE19702027469 Pending DE2027469A1 (en) | 1970-06-04 | 1970-06-04 | Manufacturing process for printed circuit boards and strip conductors |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2854385A1 (en) * | 1978-12-16 | 1980-06-19 | Preh Elektro Feinmechanik | PRINTED CIRCUIT AND METHOD FOR THE PRODUCTION THEREOF |
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1970
- 1970-06-04 DE DE19702027469 patent/DE2027469A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2854385A1 (en) * | 1978-12-16 | 1980-06-19 | Preh Elektro Feinmechanik | PRINTED CIRCUIT AND METHOD FOR THE PRODUCTION THEREOF |
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