摘要:
Die Erfindung betrifft ein Verfahren zum Fügen von Strukturelementen in Form von Beschichtungen und/oder Bauteilen auf organischen oder nicht- organischen Substratmaterialien, bei dem eine Verbindungsoberfläche wenigstens eines Strukturelements mit einer Verbindungsoberfläche wenigstens eines Substratmaterials stoffschlüssig verbunden wird, mit den Schritten : a) Erzeugen einer oxidierten Oberfläche an der Verbindungsoberfläche des Strukturelements und/oder des Substratmaterials oder Verwenden eines Strukturelements und/oder Substratmaterials mit einer bereits oxidierten Oberfläche an dessen Verbindungsoberfläche, b) Pressen der Verbindungsoberfläche des Strukturelements gegen die Verbindungsoberfläche des Substratmaterials mit einem bestimmten Anpressdruck ungleich Null bei gleichzeitiger Erwärmung zumindest der aneinander gepressten Verbindungsoberflächen auf eine Temperatur oberhalb einer Mindesttemperatur, c) Beenden des Anpressens und der Erwärmung nach Erreichen einer bestimmten Diffusionstiefe der Diffusion wenigstens eines Bestandteils der Oxidschicht der oxidierten Oberfläche an der einen Verbindungsoberfläche in das Material der anderen Verbindungsoberfläche. Die Erfindung betrifft ferner eine Anordnung aus wenigstens einem organischen oder nicht-organischen Substratmaterial und wenigstens einem stoffschlüssig damit verbundenen Strukturelement sowie eine Einrichtung zur Herstellung einer solchen Anordnung.
摘要:
A method for selectively depositing a metal layer on a substrate is provided. The method comprises the steps of:(a) providing a mold having an imprint forming surface coated with said metal layer thereon, wherein said imprint forming surface comprises a first region and a second region, and wherein said first region is dimensioned to have a greater surface area compared to said second region; and(b) contacting said mold to said substrate to form an imprint on said substrate and to simultaneously selectively deposit said metal layer from said first region of said mold to said imprint on said substrate.
摘要:
The present invention discloses structures and manufacturing processes of an ACF of improved resolution and reliability of electrical connection using a non-random array of microcavities of predetermined configuration, shape and dimension. The manufacturing process includes the steps of (i) fluidic filling of conductive particles onto a substrate or carrier web comprising a predetermined array of microcavities, or (ii) selective metallization of the array followed by filling the array with a filler material and a second selective metallization on the filled microcavity array. The thus prepared filled conductive microcavity array is then over-coated or laminated with an adhesive film. release layer
摘要:
A printed multilayer electronic circuit has printed electronic components on a first level circuit. Electrical conductors 130 are printed on the first level circuit, electrically connected to the electronic components 120. A layer of dielectric material 140 is printed over the printed electrical conductors 130. The dielectric layer 140 contains apertures 150 that extend vertically through the dielectric layer down to the electrical conductors. A second set of electrical conductors 160 are then printed on the dielectric layer, situated around the apertures 150. Electrically conductive material 170 is printed in the apertures so that an electrical connection is made from the second set of electrical conductors 160 to the electrical conductors 130 on the lower level. A second level circuit having additional electronic components 180 is then formed on the dielectric layer and the second set of conductors.
摘要:
The present invention discloses structures and manufacturing processes of an ACF of improved resolution and reliability of electrical connection using a non-random array of microcavities of predetermined configuration, shape and dimension. The manufacturing process includes the steps of (i) fluidic filling of conductive particles onto a substrate or carrier web comprising a predetermined array of microcavities, or (ii) selective metallization of the array followed by filling the array with a filler material and a second selective metallization on the filled microcavity array. The thus prepared filled conductive microcavity array is then over-coated or laminated with an adhesive film. release layer
摘要:
A method for accurately depositing a required volume of solder material on a specific area of a lead frame, substrate or other part (4) of an electronic component to be bonded by reflow of solder material to another part into a reliable, void-free connection during a subsequent assembly step comprises the following steps. Minute particles (3) of solder material whose cumulative volume corresponds to the total volume to be deposited are loaded into a cavity (2) cut into a fixture (1) made from a material such as graphite. The cavity delineates the specific area of deposit. The part (4) is then laid upon the fixture and immobilized thereon by a cover (7) made from a material such as graphite. The fixture and its enclosed part are then subjected to solder material melting temperature under a controlled atmosphere in a furnace. The cavity is patterned and dimensioned to accommodate the right number of uniformly dimensioned particles necessary to precisely create the desired deposit of solder material.
摘要:
A flexible circuit has a roll-molded thermoplastic resin base sheet with an integrally molded mounting structure located to receive a light emitting diode device in an illuminating position. The mounting structure is a pin receptacle constructed to receive a pin of the light emitting diode device. An electrically conductive portion is carried by the resin base and positioned for electric connection to conductors of the device. Another flexible circuit carries discrete integrated circuit chips and a field of fastener elements extending from a surface of a resin strip carrying conductive traces interconnecting the chips.
摘要:
A method of forming solder bumps that realizes high-density mounting; and a highly reliable method of mounting semiconductor devices. Flat board (10,30) furnished at its surface with multiple protruding parts (12) or concave parts (32) is provided. The flat board is disposed opposite to electronic component (14,34), and resin composition (18,19) containing solder powder (22,23) is fed in an interstice between the flat board and the electronic component. The resin composition is heated so that the solder powder contained in the resin composition is melted. The molten solder powder undergoes self-assembly on terminal parts (16,36) to thereby attain growth up to the surface of the flat board. Thus, on the terminal parts, there are formed solder bumps (24,38). The solder bumps are cooled and solidified, and thereafter the flat board is removed. In this manner, there are formed solder bumps (24,38) having recessed parts (24a) corresponding to the protruding parts (12) or having protrudent parts (38a) corresponding to the concave parts (32).
摘要:
A method of forming an electrical connector is provided. A mask having recesses is provided and solder is dispensed into the recesses. Contact tails from terminals in a connector are positioned below the mask and aligned with the recesses of the mask such that the contact tails either abut against the solder or are in close proximity thereto. As the solder is heated, it melts and flows onto the contact tails and forms masses of solder on the contact tails. The masses of solder are then allowed to cool and harden on the contact tails and the mask is removed. An electrical connector with the masses of solder connected thereto is thus provided.
摘要:
Devices are formed of a conductive loaded resin-based material with a plated metal layer overlying. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The ratio of the weight of the conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers to the weight of the base resin host is between about 0.20 and 0.40. The micron conductive powders are formed from non-metals, such as carbon, graphite, that may also be metallic plated, or the like, or from metals such as stainless steel, nickel, copper, silver, that may also be metallic plated, or the like, or from a combination of non-metal, plated, or in combination with, metal powders. The micron conductor fibers preferably are of nickel plated carbon fiber, stainless steel fiber, copper fiber, silver fiber, or the like.