摘要:
A halogenated polymeric material is exposed to a reducing agent and/or an electrolyte and applied voltage to render exposed portions capable of being metallized and of being etched. The exposed portions can also be doped to thereby induce electrical conductivity therein. Also, new structures containing a free standing halogenated polymeric-containing layer and electrical conductive pattern thereon are provided.
摘要:
A method of treating a halogenated polymeric-containing substrate including exposing at least portions of the halogenated polymeric-containing substrate to a composition containing a reducing agent and an aprotic solvent selected from the group consisting of nitriles, nitro compounds, amides, esters, carbonates, oxides, sulfo compounds and mixtures thereof. The solvent is free of ethers, amines, ammonia. The composition is prepared by reacting a metal with an organic compound selected from the group consisting of polyaryl compounds, aromatic carbonyl containing compounds, aromatic nitriles, and aromatic heterocyclic nitrogen containing compounds in a reaction solvent that does not react with the metal but permits reaction between the metal and the organic compound to thereby provide the reducing agent. The reducing agent is isolated from the reaction solvent to obtain a reaction product as a solid. The reaction product is added to the aprotic solvent. The treated substrate is contacted with a material to promote adhesion of the material to the treated surface.
摘要:
A structure including a halogenated polymeric-containing layer. At least a portion of a surface of the halogenated polymeric-containing layer is electrochemically reduced. An electrically conductive pattern is provided over at least a portion of the electrochemically reduced portion of the halogenated polymeric-containing layer.
摘要:
A halogenated polymeric material is exposed to a reducing agent and/or an electrolyte and applied voltage to render exposed portions capable of being metallized and of being etched. The exposed portions can also be doped to thereby induce electrical conductivity therein. Also, new structures containing a free standing halogenated polymeric-containing layer and electrical conductive pattern thereon are provided.
摘要:
A method is disclosed for making circuitized, flexible film substrates in a continuous tape format using a transfer technique. The tape is made with window-like openings having a relatively thin layer of polyimide spanning the openings. The relatively thin layer of polyimide is transferred to the tape from a metal carrier foil, preferably by using a special adhesive system. After the polyimide is transferred to the tape, the polyimide spanning the window-like openings in the tape is circuitized to form individual, circuitized, flexible film substrates which may be handled in the tape format for further processing. Preferably, the tape includes perforations for engaging sprockets of automated manufacturing equipment, or the like.
摘要:
A substrate is prepared for subsequent electroless deposition of a metal by contacting the substrate with a surfactant and with an organic carboxylic acid, and subsequently contacting the substrate with sulfuric acid.
摘要:
A fluid is applied between the carrier member and the conductive member of a peel apart structure during the peel apart operation between the carrier member and the conductive member. The fluid reduces the bonding strength between the carrier member and the conductive member and thus maintains the integrity of the conductive member as the carrier member is peeled away.
摘要:
A device for applying fluid to a substrate which includes a head member having first and second opposed portions adapted for being fixedly positioned relative to each other. The device is particularly suited for treating a substrate as the substrate moves between the first and second portions. Each portion may in turn include a first channel located at a predetermined distance from the substrate for having a first fluid impinge on the substrate at a first velocity. Additionally, each portion may include a weir adjacent the first channel for having fluid pass thereover at an accelerated rate and thus at a greater velocity than the first fluid, this weir being located at a lesser distance than the first channel. Fluid inlet means is coupled to the respective portions to provide the fluid thereto at desired velocities. Significantly, a fluid blocking means (e.g., an elongated bar) is also included as part of the structure for maintaining the fluids at pre-established levels.
摘要:
An electronic packaging structure, and a method of making this structure, are disclosed. The electronic packaging structure comprises a full panel, circuitized flexible film semiconductor chip carrier mounted on a circuitized substrate such as a printed circuit board. A plurality of semiconductor chips are mounted on the carrier in a selected pattern, and the carrier, with the chips, is mounted on a matching pattern of bonding sites on the circuitized substrate. Preferably, the circuitized flexible film semiconductor chip carrier is manufactured on a support structure used to facilitate handling of the circuitized flexible film and to facilitate heat transfer from the semiconductor chips mounted on the carrier to a heat sink which is part of the circuitized substrate. Also, the semiconductor chips mounted on the flexible film chip carrier may be tested, and burned in, while on the support structure before the chip carrier, with the chips, is mounted on the circuitized substrate.
摘要:
A method of decreasing plated metal defects by applying a layer of a noble metal such as palladium, platinum, gold, iridium, rhodium, or mixtures thereof between a photoresist and a metallic surface.