EP2119328A1 - Matiere inhibitrice d'adherence, procede pour enlever une portion d'une couche de matiere plane, structure multicouche et leur utilisation. - Google Patents
Matiere inhibitrice d'adherence, procede pour enlever une portion d'une couche de matiere plane, structure multicouche et leur utilisation.Info
- Publication number
- EP2119328A1 EP2119328A1 EP08700295A EP08700295A EP2119328A1 EP 2119328 A1 EP2119328 A1 EP 2119328A1 EP 08700295 A EP08700295 A EP 08700295A EP 08700295 A EP08700295 A EP 08700295A EP 2119328 A1 EP2119328 A1 EP 2119328A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesion
- layers
- circuit board
- printed circuit
- adhesion prevention
- 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- Withdrawn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
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/26—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L91/06—Waxes
-
- 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
-
- 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
- H05K3/46—Manufacturing multilayer circuits
-
- 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
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4688—Composite multilayer circuits, i.e. comprising insulating layers having different properties
- H05K3/4691—Rigid-flexible multilayer circuits comprising rigid and flexible layers, e.g. having in the bending regions only flexible layers
-
- 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
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/182—Printed circuits structurally associated with non-printed electric components associated with components mounted in the printed circuit board, e.g. insert mounted components [IMC]
- H05K1/183—Components mounted in and supported by recessed areas of the printed circuit board
-
- 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
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/09127—PCB or component having an integral separable or breakable part
-
- 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
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4644—Manufacturing multilayer circuits by building the multilayer layer by layer, i.e. build-up multilayer circuits
- H05K3/4652—Adding a circuit layer by laminating a metal foil or a preformed metal foil pattern
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1062—Prior to assembly
- Y10T156/1064—Partial cutting [e.g., grooving or incising]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
- Y10T156/1153—Temperature change for delamination [e.g., heating during delaminating, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
- Y10T156/1168—Gripping and pulling work apart during delaminating
- Y10T156/1195—Delaminating from release surface
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
Definitions
- the present invention relates to an adhesion preventing material for use in removing a portion of a substantially sheet material layer, which is connected in a bonding operation with at least one other, substantially flat material layer.
- the invention further relates to a method for removing a portion of a substantially flat material layer, which is connected in a connecting operation with at least one further, substantially sheet-like material layer, on a multi-layer structure, which at least two to be joined together, substantially planar material layers, and a use thereof, in particular in connection with a production of a multilayer printed circuit board.
- the method according to the invention and the single-layer or multi-layer structure according to the invention can be used in a very wide variety of application areas, with the aim being to use a single layer essential surface material layer to remove a portion after a connection with at least one further, substantially flat material layer.
- the present invention can be used in connection with multilayer structures in which, after production of a multilayer structure, a partial area is to be removed or one of the layers or layers is to be removed.
- connection layer used for a connection of the material layers to be joined together and correspondingly high workload and correspondingly high expenditure for a subsequent proper alignment or registration with each other connecting material layers is aimed at exposing or removing partial areas after a connection of such material layers.
- the essentially flat material layers can be formed from, for example, paper or cardboard-like layers or elements to be joined together, essentially plate-shaped or sheet-like elements, such as, for example, films, sheets or metallic plates or the like.
- prefabricated release films can be used in addition to substantially full-surface adhesive films corresponding to the subsequently removed portion. It is immediately obvious that such a prefabrication of such connecting films or adhesive films and / or release films is associated with correspondingly high effort and beyond correspondingly high demands on registration or alignment of the material layers to be joined together with the interposition of such, in particular prefabricated films.
- connection points of active components In connection with the manufacture of multilayer electronic components, in particular multilayer printed circuit boards, the complexity of the design of such electronic components in recent years generally leads to an increase in the number of connection points of active components to components of a printed circuit board Reduction of size at the same time a reduction of the distance between such connection points is provided.
- HDI high density interconnects
- these respective connecting layers of a dielectric material are to be provided between rigid and flexible regions of a printed circuit board, whereby an arrangement of corresponding sheet-like layers or foils which, for example, be connected by a heat treatment to form a compound of lead rigid and flexible areas of a circuit board, usually results in comparatively thick layers.
- Such thick layers not only counteract intentional miniaturization in the fabrication of multilayer printed circuit boards, but also result in a loss of registration accuracy for subsequent laser well geometries for forming the microvias and correspondingly closely spaced interconnect sites.
- Such thick, known layers of non-conductive material or dielectric layers also lead to additional processing or process steps and / or to a more complex design for the preparation of the required connections between the rigid and flexible areas of the circuit boards, as in particular a corresponding prefabrication or Formatting according to the subsequent transection of the rigid areas of the circuit board is provided.
- the present invention aims, while avoiding the problems of the above-mentioned prior art, in particular with regard to prefabrication or formatting of connecting elements or foils or release foils, to provide an adhesion prevention material in the production of a compound of at least two sheetlike material layers which is easy and reliable to manufacture and use or processable.
- the invention aims to provide a method for removing a subregion of a substantially flat material layer as well as a multilayer structure and a use, which can be carried out in a correspondingly simple and reliable manner, in particular using such an adhesion prevention material according to the invention. can be produced.
- an anti-adhesion material of the type mentioned is essentially characterized in that the anti-adhesion material has a polarity difference to the adjoining, substantially flat material layers. It can thus be prevented in a simple and reliable manner adhesion of the material layers to be joined in the region of the subsequently to be removed portion, so that elaborate confectioning and Po Sitio ⁇ réellesenfine, as they were required, for example, when using appropriate adhesive films or release films according to the prior art can be dispensed with, wherein the anti-adhesion material according to the invention can be applied or arranged in a simple and reliable manner according to the subsequently to be removed portion.
- the prevention of sticking or the release effect is based essentially on the incompatibility and the difference in polarity between the material of the adjoining, substantially flat material layers and the adhesion-preventing material.
- the adhesion-preventing material or adhesion-preventive material it is particularly preferable to use a compound which is as non-polar as possible, for example waxes of natural or synthetic origin fulfilling this purpose, as will be discussed in detail below.
- the adhesion-preventing material contains a release component, a binder and a solvent.
- the release component ensures that adhesion in the region of the subsequently to be removed portion between the material layers to be connected is reliably prevented.
- the binding agent serves, in particular, to fix the adhesion-preventing material during the bonding process on the substrate or one of the material layers to be bonded to one another and to set a rheology in such a way that it can be applied correctly and without problems.
- a binder migrates or migrates, for example, in the material of a subsequent sheet-like material layer, whereby the release effect or the effect of preventing sticking is further improved.
- the solvent serves, for example, to process the adhesion-preventing material accordingly simply and reliably.
- the adhesion preventive material hydrocarbon waxes and oils, waxes and oils based on polyethylene or polypropylene compounds, waxes and oils based on organic polyfluoro compounds, esters of fatty acids and alcohols or polyamides, organosilicon compounds and / or mixtures thereof.
- Such waxes and oils are according to the purpose in different embodiments and with different che- Mixing and physical properties available in large numbers, so that they can be selected according to the material layers to be joined together.
- Hydrocarbon waxes and oils may be of synthetic or natural origin, such as paraffins.
- synthetic waxes and oils based on polyethylene or polypropylene compounds it is also possible to use modifications of these product groups.
- synthetic waxes and oils based on polyfluoro-organic compounds or organic polyfluoro compounds PTFE may be mentioned by way of example.
- Waxes and oils based on esters of fatty acids and monohydric or polyhydric alcohols may be of synthetic or natural origin, such as, for example, palmitic or stearic acid derivatives, carnauba wax or the like.
- Concerning organosilicon compounds mention may be made, for example, of silicone and silicone oil.
- adhesion prevention material it is proposed for a simple application of the adhesion prevention material according to the invention and for reliable formation of a region to be kept free from a connection between the material layers to be joined in the area of the subsegment to be subsequently removed that the adhesion prevention material is formed by a paste.
- Such a paste or waxy paste can be reliably and precisely applied in a simple and reliable manner correspondingly precisely according to the subsequent severing or removal of the portion on or on one of the material layers to be joined together, so that with a correspondingly simplified process control after a connection can be removed in a simple manner, since in the region of the subsequently to be removed portion by providing the adhesion preventing material in the form of a waxy paste a correspondingly exposed area or area free of an adhesive connection between the material layers Is made available.
- adhesion preventing material by a printing process, in particular by screen printing, stencil printing, offset printing, flexographic printing, Pad printing, ink jet printing or the like.
- a printing process in particular by screen printing, stencil printing, offset printing, flexographic printing, Pad printing, ink jet printing or the like.
- Such waxy pastes can be applied for ease of processing, for example in the form of a microdispersion in polar or non-polar organic solvents.
- adhesion prevention material be provided with inorganic and / or organic fillers and additives, as corresponds to a further preferred embodiment.
- the adhesion preventing material has a softening or pour point of at least 100 ° C, in particular at least 120 0 C.
- a softening or melting point of the layer of an adhesion prevention material for example, in the production of a printed circuit board during a lamination to harden the adhesive layers used beyond and further increase the temperature during the Matts, Pressing operation to liquefy the anti-sticking material of the present invention, thereby ensuring that the release required by the anti-sticking material for the subsequent removal of the portion is reliably maintained.
- the adhesion prevention material prevents during the bonding process by forming a liquid layer in the subsequently to be removed portion a voliflamba connection, for example bonding the material layers to be joined together.
- the adhesion prevention material in a layer thickness of less than 25 .mu.m, in particular less than 15 microns, can be applied.
- Hiebei layer thicknesses can be provided to 50 microns or possibly more.
- the solvent has a boiling point of less than 220 0 C, and in special about 180 to 200 0 C has. This ensures that no problems arise, for example with regard to premature drying, during application of the adhesion prevention material. In addition, it is ensured by such a boiling point that the solvent is substantially completely removed or evaporated off in a further increase in the temperature.
- the binder used is a cellulose derivative or a water-soluble, preferably alkaline saponifiable compound.
- a method of the type initially mentioned is essentially characterized in that, in the region of the subsequent removal of the subregion, an area which is freed from an immediate connection between the material layers is applied by applying an adhesion prevention material according to the invention or a preferred embodiment thereof is provided.
- an area free of a compound is provided by applying or arranging the anti-adhesive material according to the invention, thereby preventing, in particular, adhesion of the subsequent further material layer to be removed can be reliably carried out a subsequent separation of the material to be removed portion having material layer without adherence to very precise tolerances for the implementation of the severing step, for example, in view of the depth of severance for subsequent removal of the portion.
- the provision of an area excluded from a connection makes it possible, in particular, to dispense with preconcentration and / or formatting of layers enabling a connection in the area of the subsequent sectioning and removal of the partial area, so that preparation steps for the production or preparation of the sections are possible
- Preparation of the material layers to be arranged or connected and a layer to be used for connection can be simplified. Due to the fact that in the area of the subsequent severing or removal of a partial area preconfiguration of an adhesive or connecting layer or layer to be arranged can be dispensed with, it is also possible to use thin or thinner intermediate layers or connecting layers of this type an adhesion-preventing material or adhesion prevention material between the metal layers to be joined together, the Aus GmbH be found.
- the adhesion prevention material is subjected to a drying and / or curing process after application.
- a drying and / or curing process can be carried out according to the materials used for the anti-adhesion material and in particular be chosen in coordination with the subsequent material layers.
- the adhesion prevention material be applied in a layer thickness of less than 25 ⁇ m, in particular less than 15 ⁇ m. is applied.
- connection according to a further preferred embodiment it is proposed that the essentially flat material layers of layers or layers be joined together Layers of a multilayer printed circuit board are formed.
- the material layers to be joined together be joined by a lamination process, wherein the abovementioned material properties of the adhesion prevention material according to the invention, for example with regard to the softening point of the adhesion prevention material and the boiling point of the solvent contained in this material special requirements, in particular in connection with the production of a multilayer printed circuit board and the materials used in the production of such a multilayer printed circuit board can be taken into account.
- the flat materials to be joined together are carried out correspondingly accurate and reliable, even with the use of low thickness or thickness materials having, such as in connection with the production of a multilayer printed circuit board , a correspondingly accurate and reliable performance of the separation process is possible.
- the requirements for the tolerances to be complied with are correspondingly lower due to the adhesion-preventing layer of material.
- a multilayer structure of the type mentioned at the outset is essentially characterized in that, in the region of a subarea to be removed after the connection of the material layers, a region which has been freed from a direct connection between the material layers to be joined together.
- Application of an anti-adhesion material according to the invention or a preferred embodiment thereof is provided.
- the adhesion-preventing material is formed by a wax paste.
- the adhesion-preventing material be applied in a layer thickness of less than 25 ⁇ m, in particular less than 15 ⁇ m, as corresponds to a further preferred embodiment of the multilayer structure according to the invention.
- the substantially flat material layers to be joined together are formed by layers or layers of a multilayer printed circuit board.
- a particularly reliable connection can be provided by the fact that the material layers to be joined together are connected by a lamination process.
- Reliable removal of the part area to be removed after the connection of the substantially flat material layers to be joined can moreover be achieved by defining and / or removing edge regions of the portion to be removed by milling, scribing, cutting, in particular laser cutting, such as this corresponds to a further preferred embodiment of the multilayer structure according to the invention.
- the adhesion prevention material according to the invention or a preferred embodiment thereof and / or the method according to the invention or a preferred embodiment thereof and / or the multilayer structure according to the invention or a preferred embodiment thereof for producing a multilayer printed circuit board is or will be used.
- Further preferred uses of the method according to the invention and / or the multilayer structure according to the invention lie in the production of at least one channel in a printed circuit board, an exemption for the production of cavities, in particular three-dimensional cavities or cavities in a printed circuit board, a production of remote and / or Stepped portions of a circuit board, an exemption of at least one element, in particular registration element in the interior or in inner layers of a multilayer printed circuit board and / or a production of a rigid-flexible circuit board.
- FIG. 1 shows a schematic section through a first embodiment of a sheet-like material layer of a multilayer structure to be produced according to the invention in the form of a rigid region of a rigid-flexible printed circuit board as a multi-layered structure according to the invention
- FIG. 2 shows a section through the rigid region of the rigid-flexible printed circuit board in a representation similar to FIG. 1, wherein milling edges are provided in the region of a subsequent severing of the portion to be removed of the rigid region;
- Fig. 3 in a similar to Figs.
- FIG. 1 and 2 representation of the section through the rigid portion of the rigid-flexible circuit board, wherein in the region of the subsequent cutting and the Fräskanten to form an exemption to prevent a direct connection between the rigid area and an adhesion prevention material according to the invention is provided or applied to the flexible region of the printed circuit board formed in substantially flat material layers;
- 4 shows a section similar to the previous figures, wherein a layer of non-conductive material or a dielectric and a flexible region of the rigid-flexible printed circuit board are arranged or fixed on the rigid region of the first material layer as a second substantially flat material layer are;
- FIG. 6 schematically shows a section through a modified embodiment of a substantially flat material layer of a printed circuit board as an inventive multilayer structure to be produced according to the method of the invention
- Fig. 7 is a schematic section through the sheet material layer shown in Fig. 6, wherein a layer of an adhesion preventive material according to the invention is applied
- 8 shows a schematic section through the sheet-like material layer illustrated in FIGS. 6 and 7, which is connected to at least one further sheet-like material layer for producing a multilayer printed circuit board as a multilayer structure according to the invention
- FIG. 9 shows, in a representation similar to FIG. 8, a schematic section through the sub-region of the multilayered structure to be subsequently removed, which is defined or defined by cutting;
- Fig. 10 is a view similar to Fig. 9, wherein the cut in the illustration of FIG. 9 or limited portion is removed.
- a first embodiment of a multilayered structure according to the invention which is produced using the method according to the invention and an adhesion prevention material according to the invention in the form of a rigid-flexible printed circuit board, will be described with reference to FIGS.
- FIG. 1 shows a schematic representation of a rigid, multi-layered region 1 as a first substantially flat material layer of a subsequently produced rigid-flexible printed circuit board as a multilayer structure.
- cutting edges 7 are formed in the region of a subsequent severing of the rigid, multi-layered region 1 of the rigidly flexible printed circuit board to be produced, as indicated in FIG. 2.
- rigid region 1 of the circuit board and a for connection to a flexible region as a second substantially planar material layer of the circuit board and be arranged layer of non-conductive material or a Dielektrikum is subsequently to the formation of the Fräskanten 7 in the embodiment shown in Fig. 1 to 5 arranged such a adhesion preventing material or adhesion prevention material 8 in the region of the subsequent transection and in the grooves formed by the Fräskanten 7 grooves or grooves.
- the adhesion prevention material may be formed, for example, from a waxy paste 8, such a waxy paste 8 being applied or introduced in simple steps, for example by a printing process, in particular by screen printing or stencil printing, in the region of the subsequent severing as well as in the milling edges 7 , Depending on the material 8 or the waxy paste used, a drying and / or curing process can be provided for subsequently to the application of the material or the paste 8.
- the material or paste 8 can hiebei be applied in the form of a microdispersion in polar or non-polar, organic solvents. Moreover, for ease of processing and ease of handling, the paste 8 is formed, for example, of polyethylene waxes, polypropylene waxes, Teflon-based waxes, and / or mixtures thereof.
- the paste 8 is provided with inorganic and / or organic fillers and / or additives.
- the paste or adhesion-preventing material 8 having a layer thickness of less than 25 .mu.m, in particular less than 15 .mu.m, in the area of the following Cutting is applied. Further embodiments of an adhesive preventive material to be used are given below.
- the paste 8 may alternatively be applied in the region of the subsequent severing of the rigid, in particular multilayer, region of the printed circuit board. after which the cutting edges 7 penetrate the applied material 8.
- this bonding layer 9 for example, from a known film, for example a prepreg or an RCC film, or may be formed by a liquid dielectric.
- a flexible portion 10 of the produced, rigid-flexible circuit board is indicated, wherein the flexible portion 10 of the manufactured, rigid-flexible circuit board as well as the rigid region 1 may be formed multi-layered ,
- the thickness of the layer 9 can also be found with lower layer thicknesses of the layer 9 whose thickness is less than 50 ⁇ m, in particular 40 ⁇ m or less.
- FIG. 5 shows a section through the rigid-flexible printed circuit board formed from the rigid region 1 and the flexible region 10 as a multilayer structure, wherein a cut-through 11 between the now separate, rigid subregions 12 and 13 in the area of the milling edges 7 was made.
- a connection between the flexible region 10 of the printed circuit board and the now separate, rigid partial regions 12 and 13 by additional microvias or Passage openings 14 can be achieved.
- FIGS. 1 to 5 The embodiment of a multi-layer, rigid printed circuit board or a rigid region 1 of the printed circuit board illustrated in FIGS. 1 to 5 represents only a simplified example of such a multi-layer printed circuit board as a multilayer for illustrative purposes
- Layers 2 as well as a contact via microvia 5 or through openings 6 and 14 can be used according to the desired complexity of the component to be produced.
- FIGS. 6 to 10 again in the form of a multilayer printed circuit board, generally designated 20 is a structured core of such a printed circuit board, this core 20 consisting of several layers or layers, wherein in particular the 6 illustrated upper layer or layer is structured accordingly.
- the core 20, which represents a substantially flat material layer, of one or more layer (s) subsequently becomes, as shown in FIG. 7, a connection with further layers or layers as additional substantially flat material layers in one Provide portion with a anti-adhesion material or adhesion prevention material 21, which is applied for example by screen printing.
- connection is made in a manner known per se, for example, by laminating the planar core 20 with a plurality of layers substantial sheet material layers 22 and 23, wherein also in Fig. 8, the area provided with the adhesion prevention material portion is denoted by 21.
- the illustrated in Fig. 8 set planar material layer 23 may in turn be structured accordingly in particular on its upper side.
- connection process between the plurality of substantially flat material layers 20, 22 and 23 shown in FIG. 8 takes place, as can be seen from FIG. 9, for example by cutting, in particular laser cutting to form cutting lines or depressions 24, a boundary Definition of a partial region 25 of the essentially flat material layer 23.
- adhesion prevention material 21 provided below the partial region 25 to be removed, a simple and reliable removal of the partial region 25 is possible in a simple manner after the formation of the cutting line or limiting recesses 24 is shown or indicated in Fig. 10.
- a cavity or a cavity 26 in particular a three-dimensional cavity, can be produced in partial regions or individual layers or layers of a multilayer printed circuit board by removing the partial region 25.
- a cavity 26 by removal of the portion or element 25 may also be used or used for the subsequent arrangement of separate elements in inner regions or inner layers of a multilayer printed circuit board.
- the anti-adhesion material 8 and 21 may include, for example, hydrocarbon waxes and oils, waxes and oils based on polyethylene or polypropylene compounds, waxes and oils based on organic polyfluoro compounds , Esters of fatty acids and alcohols or polyamides, organosilicon compounds and / or mixtures.
- such multilayered structures may also be made of materials other than the materials for manufacturing a printed circuit board, such as films or sheet-like materials be formed.
- the connecting layer is dispensed with a prefabrication or formatting, for example, adhesive or connecting foils
- subsections can be simple and following on such a simplified connection of substantially full-surface layers of material be reliably removed by the provision or the application of the adhesion prevention material 8 and 21 respectively.
- Adhesion preventing material 8 or 21 in particular in the form of a waxy paste to make sure that this anti-adhesion material has a corresponding polarity difference and an incompatibility with the subsequent, substantially flat material layer (s).
- any remaining residue of the adhesion preventing material 8 or 21 can be easily and reliably removed again, in particular completely ,
- Such removal of the adhesion preventing material 8 or 21 after removal of the portion 1 1 or 25 can be done for example by wet-chemical or mechanical abrasive methods or by laser, so that a complete removal of this material 8 to 21 is possible.
- structures underlying this material 8 such as, for example, pads, conductor tracks, blind bores, etc., can be used for contacting further components.
- the additional components to be arranged in the region of the removed subarea 25 can be located directly at the bottom of such a recess or cavity 26, in particular after a removal of the possibly remaining anti-adhesion material 21, as indicated in FIG for example, be contacted.
- the subsequent removal of partial regions 25 with the formation of cavities 26 can also provide corresponding three-dimensionally open or possibly closed cavities, in which connection further layers of a multilayer printed circuit board, for example starting from the state shown in FIG can be made available.
- step-shaped or stepped partial regions makes it possible, for example, to produce nested or overlapping regions of a multilayer printed circuit board.
- the adhesion-preventing material 8 or 21 By removing partial areas by providing the adhesion-preventing material 8 or 21, it is also possible, for example, to make it possible to repair existing or already equipped printed circuit boards with embedded components, if for example as a precautionary measure optionally exposed to a high failure or damage rate Beauettin according to an anti-adhesion material is provided so that after a Schadhaftwerden such a device by removing a portion of a circuit board can be repaired, and not completely replaced, so that a simple replacement of components is possible and a multi-layered structure, which consists of at least two substantially flat material layers to be joined together, can be easily provided.
- 200 g of polyethylene wax powder was dispersed by means of a vacuum mixer.
- Such formulation or detackifying material is particularly suitable for screen printing application.
- Example 3 Starting from a binder according to Example 1, an adhesion prevention material based on a polyethylene / carnauba wax mixture was prepared similarly as in Example 1.
- Example 3 An adhesion prevention material based on a polyethylene / carnauba wax mixture was prepared similarly as in Example 1.
- acrylic thickener 50 g were diluted with 370 g of water as in Example 1. Instead of the addition of ammonia solution, this mixture was saponified with 2 g of 20% sodium hydroxide solution.
- An anti-sticking material made with such a binder shows improved re-solubility in a printing operation.
- a solvent-based binder mixture was prepared by dissolving 10.8 g of ethylcellulose in 89.2 g of ethoxypropanol. The resulting viscous varnish was used as a binder for the production of anti-sticking materials.
- Such an anti-adhesion material is suitable for application by a printing method, in particular a screen printing method, and in particular has good theological properties.
- a solvent-based binder mixture was prepared by dissolving 36 g of ethylcellulose in 384 g of DPGMA (dipropylene glycol methyl ether acetate). The resulting viscous varnish was used as a binder for the production of anti-sticking materials.
- 180 g of the varnish or binder prepared above 180 g of polyamide wax powder were dispersed by means of a vacuum mixer.
- a dye for example 2 g of soluble dye, for example Neozapon Blue 807, was added to the mixture.
- the further formulation of the adhesion prevention material corresponds to Example 6.
- a thermally polymerizable silicone is used immediately.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Laminated Bodies (AREA)
Abstract
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0010007U AT10030U1 (de) | 2007-02-16 | 2007-02-16 | Verfahren zum herstellen einer starr-flexiblen leiterplatte sowie starr-flexible leiterplatte |
AT0072707U AT11663U1 (de) | 2007-02-16 | 2007-12-03 | Haftverhinderungsmaterial, verfahren zum entfernen eines teilbereichs einer flächigen materialschicht sowie mehrlagige struktur und verwendung hiefür |
PCT/AT2008/000029 WO2008098271A1 (fr) | 2007-02-16 | 2008-01-30 | Matière inhibitrice d'adhérence, procédé pour enlever une portion d'une couche de matière plane, structure multicouche et leur utilisation. |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2119328A1 true EP2119328A1 (fr) | 2009-11-18 |
Family
ID=39493759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08700295A Withdrawn EP2119328A1 (fr) | 2007-02-16 | 2008-01-30 | Matiere inhibitrice d'adherence, procede pour enlever une portion d'une couche de matiere plane, structure multicouche et leur utilisation. |
Country Status (7)
Country | Link |
---|---|
US (3) | US8388792B2 (fr) |
EP (1) | EP2119328A1 (fr) |
JP (1) | JP2010518648A (fr) |
KR (1) | KR20090128384A (fr) |
AT (1) | AT11663U1 (fr) |
TW (1) | TW200850106A (fr) |
WO (1) | WO2008098271A1 (fr) |
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AT11663U1 (de) * | 2007-02-16 | 2011-02-15 | Austria Tech & System Tech | Haftverhinderungsmaterial, verfahren zum entfernen eines teilbereichs einer flächigen materialschicht sowie mehrlagige struktur und verwendung hiefür |
AT12321U1 (de) | 2009-01-09 | 2012-03-15 | Austria Tech & System Tech | Multilayer-leiterplattenelement mit wenigstens einem laserstrahl-stoppelement sowie verfahren zum anbringen eines solchen laserstrahl- stoppelements in einem multilayer- leiterplattenelement |
AT12322U1 (de) | 2009-01-27 | 2012-03-15 | Dcc Dev Circuits & Components Gmbh | Verfahren zur herstellung einer mehrlagigen leiterplatte, haftverhinderungsmaterial sowie mehrlagige leiterplatte und verwendung eines derartigen verfahrens |
WO2011099820A2 (fr) * | 2010-02-12 | 2011-08-18 | Lg Innotek Co., Ltd. | Carte de circuit imprimé avec cavité et son procédé de fabrication |
US8519270B2 (en) * | 2010-05-19 | 2013-08-27 | Unimicron Technology Corp. | Circuit board and manufacturing method thereof |
CN103270819B (zh) * | 2010-10-20 | 2016-12-07 | Lg伊诺特有限公司 | 印刷电路板及其制造方法 |
AT12749U1 (de) | 2011-04-01 | 2012-10-15 | Austria Tech & System Tech | Leiterplattenelement mit wenigstens einer led |
AT13231U1 (de) | 2011-12-05 | 2013-08-15 | Austria Tech & System Tech | Verfahren zum herstellen einer leiterplatte unter entfernung eines teilbereichs derselben sowie verwendung eines derartigen verfahrens |
AT13229U1 (de) | 2011-12-05 | 2013-08-15 | Austria Tech & System Tech | Verfahren zum herstellen einer leiterplatte unter entfernung eines teilbereichs derselben sowie verwendung eines derartigen verfahrens |
AT13434U1 (de) | 2012-02-21 | 2013-12-15 | Austria Tech & System Tech | Verfahren zur Herstellung einer Leiterplatte und Verwendung eines derartigen Verfahrens |
US20140158414A1 (en) * | 2012-12-11 | 2014-06-12 | Chris Baldwin | Recessed discrete component mounting on organic substrate |
EP3075006A1 (fr) | 2013-11-27 | 2016-10-05 | AT & S Austria Technologie & Systemtechnik Aktiengesellschaft | Structure de carte de circuits imprimés |
AT515101B1 (de) | 2013-12-12 | 2015-06-15 | Austria Tech & System Tech | Verfahren zum Einbetten einer Komponente in eine Leiterplatte |
AT515447B1 (de) | 2014-02-27 | 2019-10-15 | At & S Austria Tech & Systemtechnik Ag | Verfahren zum Kontaktieren eines in eine Leiterplatte eingebetteten Bauelements sowie Leiterplatte |
US11523520B2 (en) | 2014-02-27 | 2022-12-06 | At&S Austria Technologie & Systemtechnik Aktiengesellschaft | Method for making contact with a component embedded in a printed circuit board |
KR20160099381A (ko) * | 2015-02-12 | 2016-08-22 | 삼성전기주식회사 | 인쇄회로기판 및 인쇄회로기판의 제조 방법 |
US9997442B1 (en) | 2016-12-14 | 2018-06-12 | Advanced Semiconductor Engineering, Inc. | Semiconductor device and method of manufacturing the same |
CN108271313B (zh) * | 2016-12-30 | 2021-03-16 | 奥特斯(中国)有限公司 | 用于部件承载件的具有纳米和/或微米结构的片材 |
JP6477761B2 (ja) * | 2017-03-27 | 2019-03-06 | マツダ株式会社 | 車両用パネル構造の製造方法 |
KR102582854B1 (ko) * | 2018-07-05 | 2023-09-26 | 삼성디스플레이 주식회사 | 표시 장치 및 표시 장치의 제조 방법 |
EP3637963B1 (fr) * | 2018-10-12 | 2024-02-07 | AT&S Austria Technologie & Systemtechnik Aktiengesellschaft | Structures porteuses de composants reliées par des structures d'aimant coopérants |
CN113543484B (zh) * | 2021-06-29 | 2022-12-30 | 生益电子股份有限公司 | 电路板及其制作方法 |
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2007
- 2007-12-03 AT AT0072707U patent/AT11663U1/de not_active IP Right Cessation
-
2008
- 2008-01-30 JP JP2009549742A patent/JP2010518648A/ja active Pending
- 2008-01-30 EP EP08700295A patent/EP2119328A1/fr not_active Withdrawn
- 2008-01-30 KR KR1020097016794A patent/KR20090128384A/ko not_active Application Discontinuation
- 2008-01-30 US US12/449,606 patent/US8388792B2/en active Active
- 2008-01-30 WO PCT/AT2008/000029 patent/WO2008098271A1/fr active Search and Examination
- 2008-02-04 TW TW097104146A patent/TW200850106A/zh unknown
-
2013
- 2013-02-05 US US13/759,645 patent/US20130149506A1/en not_active Abandoned
-
2018
- 2018-05-16 US US15/980,864 patent/US20180257364A1/en not_active Abandoned
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JPH1022645A (ja) * | 1996-07-08 | 1998-01-23 | Nippon Avionics Co Ltd | キャビティ付きプリント配線板の製造方法 |
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
---|---|
KR20090128384A (ko) | 2009-12-15 |
US8388792B2 (en) | 2013-03-05 |
AT11663U1 (de) | 2011-02-15 |
US20100009178A1 (en) | 2010-01-14 |
TW200850106A (en) | 2008-12-16 |
WO2008098271A1 (fr) | 2008-08-21 |
US20130149506A1 (en) | 2013-06-13 |
JP2010518648A (ja) | 2010-05-27 |
US20180257364A1 (en) | 2018-09-13 |
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