57 results about "Thermocompression bonding" patented technology

Thermocompression bonding head fixture designs and techniques for use thereof are provided. In one aspect, an exemplary bonding head fixture includes: a workpiece contact surface; at least one recess in the workpiece contact surface; and heat passages leading into and out of the at least one recess. In another aspect, an exemplary bonding head includes: a bonding head fixture having a workpiece contact surface, at least one recess in the workpiece contact surface, and heat passages leading into and out of the at least one recess; and a heat source connected to at least one of the heat passages. Methods for use of the present bonding head fixtures are also provided.

The invention provides a method for inhibiting the formation of Kirkendall holes in an In-based brazing filler metal welding interface by adopting a vertical twin structure, which comprises the following steps of: respectively adhering a layer of vertical twin structure to the surfaces of an upper metal substrate to be welded and a lower metal substrate to be welded which are subjected to surface treatment in an electro-deposition manner, wherein the size of the vertical twin structure is 5 * 5 mm, the thickness of the vertical twin structure is 20-40 mu m, and the thickness of the vertical twin structure is 10 * 10 mm; the method comprises the following steps: carrying out a thermocompression bonding experiment on a pure copper coating with a vertical orientation nano twin crystal structure at set bonding temperature, pressure and time; according to the technical scheme, by means of the structural characteristic that the diffusion coefficient of the vertically-arranged twin boundaries in the nano twin structure is low, the diffusion rate of interface elements is reduced, flux balance is maintained, and the low impurity characteristic of the vertically-oriented nano twin film is utilized, so that formation of Kirkendall voids in the welding interface is limited. The method provided by the invention is simple and convenient to operate, and has great significance for improving the connection reliability of the In-based low-temperature bonding system.

The invention discloses a wafer-level heat dissipation structure and a manufacturing method. The wafer-level heat dissipation structure comprises a heat dissipation substrate, a device wafer and a bonding layer, the heat dissipation substrate is a first silicon wafer with a diamond layer growing on the lower surface, and the upper surface of the heat dissipation substrate is plated with a first copper layer; the device wafer is a second silicon wafer of which the upper surface is integrated with an active device, and the lower surface is plated with a second copper layer; the bonding layer is composed of a Cu-Cu bonding interface formed by the first copper layer and the second copper layer through thermocompression bonding. The method comprises the following steps: growing a diamond layer on the lower surface of a first silicon wafer through MPCVD, and sputtering a Cu layer after the upper surface is thinned; sputtering a Cu layer on the back surface of the second silicon wafer of which the surface is integrated with the active device; and finally realizing interconnection of the Cu layers of the two wafers through thermocompression bonding. The problem of multi-interface thermal resistance caused by a traditional thermal interface material is avoided, an ultra-low thermal resistance path from a chip junction to a diamond heat dissipation surface is constructed, and the method is particularly suitable for thermal management of a high-power-density semiconductor device.

A wafer processing method is provided, which does not hinder the joining performed later even after the head of the protrusion-shaped electrode is cut. A wafer processing method, which is a wafer divided by a division predetermined line on a front surface to form a plurality of devices having a protrusion-shaped electrode, wherein the wafer processing method includes: a cutting step of holding a back surface of the wafer by a holding surface of a chuck table, cutting the head of the protrusion-shaped electrode to make the height of the head uniform by a cutter rotating in parallel with the holding surface, and making a metal surface exposed; a thermocompression bonding tab laying step of laying a thermocompression bonding tab on the front surface of the wafer; a thermocompression bonding step of heating and pressing the thermocompression bonding tab to perform thermocompression bonding; and a peeling step of peeling the thermocompression bonding tab from the wafer before the wafer is divided into each device chip and the electrode is joined to a wiring substrate.

The present invention relates to a coil component in which a terminal electrode and a terminal end of a wire are connected by thermocompression bonding at a bottom surface of a flange portion, and the following effects are obtained as a result of thermocompression bonding being appropriately performed without being excessively insufficient, that is, a stable fixing force is obtained for the connection state between the terminal electrode and the terminal end of the wire, and problems caused by the terminal end of the wire protruding from the terminal electrode are less likely to occur. A terminal end (21a) of a wire (21) is in a state of being at least partially disposed inside a terminal electrode (17) and extending along a main surface (25) of the terminal electrode, and has a top surface (33) located at a side opposite to the bottom surface (23) of a flange portion (13) from the main surface. A solder tail surface (37) that rises from the main surface toward the top surface and forms a concave curved surface is formed on an outer surface of the terminal electrode. The main surface is realized by a parent solder material layer (31) composed of tin or a tin alloy that constitutes an outermost layer of the terminal electrode.

The invention relates to the technical field of microelectronic manufacturing, and discloses a preparation method and a transfer method of a bearing support plate for transferring a miniature LED chip, and the preparation method comprises the steps: carrying out the cleaning and oxygen plasma activation of a bearing support plate base material; a five-layer structure composite membrane material is prepared by adopting a roller blade coating process, and the composite membrane material comprises a PET base material layer, and a first silica gel layer and a second silica gel layer which are respectively coated on two sides of the PET base material layer; after curing, the second silica gel layer side of the composite membrane material is attached to the bearing carrier plate base material; according to the transferring method, chip transferring is achieved through the steps of contact attaching, laser stripping and thermocompression bonding by means of the bearing carrier plate. According to the invention, the thickness uniformity of an adhesive layer is improved, precise adhesive force regulation and control of chip picking and releasing are realized, the high-temperature process of a traditional spin coating process on a carrier plate is avoided, the problems of chip fragmentation, displacement and the like are effectively solved, and the yield, efficiency and precision of Micro LED mass transfer are greatly improved.

The utility model discloses an aerogel package and an electric heating insulation device for a pipeline, the aerogel package is mainly characterized by comprising aerogel and a sealing package coated outside the aerogel, the sealing package is defined to form a thickness, a coating side, a back side and an internal space, so that the aerogel is arranged in the internal space; wherein the sealing bag is provided with a plurality of thermocompression bonding edges, each thermocompression bonding edge is provided with a protruding length, the protruding length is made to be larger than two times of the thickness, each thermocompression bonding edge can be reversely folded and abut against the back side, and the inner space is in a vacuumized state.

The utility model relates to the technical field of thermocompression bonding, in particular to a protective clothing processing bonding machine which comprises a machine frame, a first fixing plate is fixedly connected in the machine frame, a second fixing plate is fixedly connected in the machine frame, and an electric push rod is fixedly connected to the upper surface of the first fixing plate. The upper surface of the first fixing plate is fixedly connected with a controller, the upper surface of the second fixing plate is connected with an ironing table in an embedded mode, the side surface of the machine frame is fixedly connected with an air pump, and the side surface of the machine frame is fixedly connected with a first water tank. The protective clothing is flattened through the rubber damping roller, after the spring is stressed and contracted, the heat sealing base makes contact with the protective clothing to complete hot pressing, the manpower cost input is reduced, meanwhile, wrinkles generated during hot pressing are avoided, the heat sealing module, the stretching module and the limiting base can be separated, and the interiors of the stretching module and the heat sealing module can be conveniently overhauled.

The invention discloses a thermocompression bonding device and method based on multi-vision collaboration, and belongs to the technical field of semiconductor packaging, the thermocompression bonding device comprises a carrier, a transfer platform, a pickup head, a bonding head, a first vision assembly, a second vision assembly and a third vision assembly, the pickup head is used for placing chips to be bonded on placement positions of the transfer platform one by one, and the bonding head is used for bonding the chips to be bonded on the placement positions of the transfer platform. The bonding head is used for picking up the plurality of to-be-bonded chips on the transfer platform and bonding the plurality of to-be-bonded chips to a substrate on the carrying platform at one time; wherein the first visual assembly and the second visual assembly cooperate to complete calibration of the transfer platform and alignment of the bonding head, the third visual assembly and the second visual assembly cooperate to achieve accurate alignment of the substrate and the bonding head, and the precision and stability of one-time bonding of multiple chips are guaranteed. According to the thermocompression bonding equipment based on multi-vision collaboration, efficient and accurate bonding of multiple chips and the substrate is achieved through transfer platform caching, multi-vision alignment and carrying table / bonding head collaboration movement.

A joined body production method includes subjecting a first electronic component and a second electronic component to thermocompression bonding via a hot-melt adhesive sheet. The hot-melt adhesive sheet includes a binder and solder particles. The binder includes a crystalline polyamide resin having a carboxyl group. A melting point of the solder particles is 30° C. to 0° C. lower than a temperature of the thermocompression bonding. When melt viscosities of the hot-melt adhesive sheet are measured under a condition of a heating rate of 5° C. / min., the hot-melt adhesive sheet has a ratio of a melt viscosity at 40° C. lower than the temperature of the thermocompression bonding to a melt viscosity at 20° C. lower than the temperature of the thermocompression bonding of no less than 10.

The invention provides a method for improving the lamination binding property of water-based ceramic plain sheets, and relates to the technical field of ceramic materials. The method comprises the following steps: firstly, coating an interface binder on a non-smooth surface / smooth surface of the ceramic wafer and drying; and then laminating at least two ceramic wafers treated by the interface binder, and carrying out thermocompression bonding to obtain the laminated ceramic wafer. According to the method disclosed by the invention, the interlayer bonding strength is remarkably enhanced, the problems of sintering layering and warping of the laminated ceramic plain sheet caused by insufficient bonding force are effectively relieved, the technical bottleneck of poor wettability of the water-based tape casting slurry and the existing film belt is further overcome, and the plain sheet with smooth surface and uniform thickness can be stably prepared.

The invention provides a plasma activation atomic-scale bonding method and system for a sensor glass cover plate, and particularly relates to the technical field of surface treatment in microelectronic manufacturing. The method comprises the following steps: performing plasma activation treatment on the surface of a sensor glass cover plate to generate an activated glass surface; spraying a solution containing lanthanide rare earth elements on the surface of the activated glass to form a rare earth treatment layer; then, ultraviolet light with the wavelength ranging from 200 nm to 300 nm is used for irradiation, and the rare earth treatment layer is converted into a rare earth oxide catalytic layer; aligning and assembling the sensor glass cover plate with the catalyst layer and a to-be-bonded part; and finally, carrying out thermocompression bonding at the temperature of 150-200 DEG C and under the pressure of 0.1-0.5 MPa, and promoting a dehydration condensation reaction between the surface of the activated glass and the surface hydroxyl of the to-be-bonded part through the rare earth oxide catalyst layer. The problem of aging attenuation of glass surface activity after plasma activation is solved, the effective time window of the bonding process is prolonged, the equipment requirement is reduced, and high-yield and high-consistency low-temperature high-strength bonding is realized.

Heat transfer couplers, which can also be referred to as nozzles, for semiconductor manufacturing are provided. The heat transfer couplers can include a cavity on a side that is opposite the side a semiconductor chip is attached to during an assembly process. In the assembly process, the semiconductor chip can be electrically coupled to a package substrate forming electrical interconnects. The assembly process can be a thermocompression bonding process in which first level interconnects are formed.

A joined body production method includes subjecting a first electronic component and a second electronic component to thermocompression bonding via a hot-melt adhesive sheet. The hot-melt adhesive sheet includes a binder and solder particles. The binder includes a crystalline polyamide resin having a carboxyl group. A melting point of the solder particles is 30° C. to 0° C. lower than a temperature of the thermocompression bonding. When melt viscosities of the hot-melt adhesive sheet are measured under a condition of a heating rate of 5° C. / min., the hot-melt adhesive sheet has a ratio of a melt viscosity at 40° C. lower than the temperature of the thermocompression bonding to a melt viscosity at 20° C. lower than the temperature of the thermocompression bonding of no less than 10.

The utility model discloses a high-density typesetting lead frame, which relates to the technical field of electronic packaging, and comprises a conducting layer, a transition layer, a buffer layer, an insulating layer, a heat dissipation layer and a composite connection structure for connecting the layers which are stacked in sequence, and the composite connection structure comprises thermocompression bonding layers and adhesive layers which are distributed alternately. A first thermocompression bonding layer is arranged between the conductive layer and the transition layer, a second thermocompression bonding layer is arranged between the buffer layer and the insulating layer, a first cementing layer is arranged between the transition layer and the buffer layer, and a second cementing layer is arranged between the insulating layer and the heat dissipation layer. The high-density typesetting lead frame realizes integration of high-density wiring, efficient heat dissipation and high mechanical strength by cooperatively regulating thermal stress through the nano-diamond-containing silver adhesive layer and the copper alloy-aluminum oxide-molybdenum copper composite layer system and combining aluminum nitride ceramic micropore filling, the nickel-plated diamond copper heat dissipation layer and the gradient buffer strip structure design; and the reliability and the service life of the electronic device under high-temperature and high-load working conditions are remarkably improved.

To provide a security page with high productivity while suppressing warp or distortion by using a thermoplastic resin having at least either a glass transition point or a softening point lower than that of polycarbonate in an IC substrate layer.SOLUTION: A security page 1 comprises: a hinge layer 13 connected as a security document 2; and an IC substrate layer 21 having an IC chip 23. Substrate surface layers 20, 22 are bonded to a front and back of the IC substrate layer 21. The substrate surface layers 20, 22 are made of polycarbonate. The IC substrate layer 21 is made of the thermoplastic resin having at least either the glass transition point or the softening point lower than that of the polycarbonate.SELECTED DRAWING: Figure 1

The invention provides a three-dimensional heterogeneous structure based on plastic package opening and TSV mixed bonding and a manufacturing method, and the method comprises the steps: enabling an InP chip to be mounted on a prefabricated substrate, and carrying out the mold packaging, and obtaining a mold packaging substrate; a blind hole with the aspect ratio smaller than or equal to 10 is formed in the side, located on the InP chip, of the mold sealing base body, the blind hole is filled with electroplating copper, and a mold sealing copper end is obtained; and carrying out thermocompression bonding on the TSV exposed copper end in the TSV chip and the mold sealing copper end to obtain a three-dimensional heterogeneous structure. According to the manufacturing method, the electrocoppering through hole close to the edge of the InP chip is constructed in the mold sealing layer, and the electrocoppering through hole and the copper exposing end of the upper-layer TSV chip are subjected to thermocompression bonding, so that the dependence on previous hybrid bonding equipment and an ultra-high clean environment is avoided; the problems of high cost, high thermal damage risk, stress concentration and the like of a traditional high-density interconnection process in heterogeneous material integration are solved, short-path, high-thermal-conductivity and high-reliability vertical interconnection is realized, CTE mismatch stress is buffered by using a mold sealing material, the thermal cycle life is prolonged, and the structural stability is improved.

To provide a temperature control roller capable of controlling the temperature of a base material while suppressing unevenness of temperature in an axial direction.SOLUTION: The temperature control roller 20 has a first channel 53 and a second channel 55. The first flow path 53 allows the heat medium to flow from one end to the other end in the axial direction of the roller body 24. The second flow path 55 causes the heat medium to flow from the other end portion toward the one end portion in the axial direction of the roller body 24. The temperature of the heat medium flowing through the first flow path 53 gradually approaches the temperature of the roller body 24 as the heat medium flows from the one end portion to the other end portion of the roller body 24. Further, the temperature of the heat medium flowing through the second flow path 55 gradually approaches the temperature of the roller main body as the heat medium flows from the other end portion toward the one end portion of the roller main body 24. In this way, by jointly using two flow paths in which the directions of flow of the heat medium are different, the temperature of the roller main body 24 can be made uniform in the axial direction. Therefore, the temperature of the substrate can be controlled while suppressing the unevenness of the temperature in the axial direction.SELECTED DRAWING: Figure 4

A method and apparatus for plasma processing of electrical interconnects of an electronic assembly of an integrated circuit, such as a flip chip, is disclosed herein. A method of interconnect bonding includes applying, by an atmospheric pressure plasma applicator, a plasma including activated hydrogen to a metal contact supported on a substrate to remove oxidation and create a newly deoxygenated metal surface. The metal contact can be bonded to the other by reflow or thermocompression bonding. An inert gas environment may be formed within an enclosure for application of the plasma and / or bonding of the metal contacts.

The invention relates to the technical field of thermocouples, in particular to a thin film type thermocouple and a thermocompression bonding mechanism thereof, the thin film type thermocouple comprises a flattening mechanism and a thin film thermocouple piece which is used for being flattened and placed on a lower hot pressing plate before thermocompression bonding, and the flattening mechanism comprises two groups of flattening assemblies and an adjusting and limiting mechanism. According to the hot-pressing mechanism, through the synergistic effect of the flattening mechanism, the limiting mechanism and the defoaming mechanism, the problems of film wrinkles, bubble residues and interlayer slippage are effectively solved, automation and refinement of the hot-pressing process are achieved, and the packaging quality, the product consistency and the production efficiency of the film thermocouples are remarkably improved.

Provided is a biaxially stretched polyester film for metal sheet lamination molding. With reference to can lid production by thermocompression bonding in a lamination process, this biaxially stretched polyester film exhibits an excellent adhesiveness and an excellent openability free of feathering during opening. This film can also prevent corrosion even for contents that readily cause metal corrosion. The laminated film for metal sheet lamination molding has a layer containing an amorphous polyester resin B provided on one surface of a biaxially stretched polyester film that contains a polyester resin A. In measurement of the laminated film using a dynamic viscoelasticity measurement instrument, the maximum temperature peak temperature Te1 (°C) of the loss elastic modulus of the film and the temperature Te2 (°C) of the peak at the next highest temperature after Te1 satisfy 15 ≤ Te1 (°C) - Te2 (°C) ≤ 90.

The utility model relates to the technical field of bonding equipment, and provides a thermocompression bonding head, which comprises a thermocompression bonding head and a bonding platform, the thermocompression bonding head is arranged above the bonding platform, and a thermocompression head of the thermocompression bonding head penetrates through a bonding window of the bonding platform to bond a workpiece in a bonding cavity of the bonding platform; the thermocompression bonding head further comprises a connecting mechanism, an upper cavity, a recycling mechanism, a guide mechanism, a bearing plate and a moving mechanism. One end of the connecting mechanism is connected with the bearing plate, the other end of the connecting mechanism is connected with the hot-pressing head, the guide mechanism is arranged on the side of the bearing plate, the hot-pressing head is arranged in the upper cavity, the moving mechanism is arranged on the outer side of the upper cavity, and the moving mechanism is used for driving the upper cavity. The recycling mechanism is arranged on the periphery of the upper cavity. The reducibility of the thermocompression bonding equipment is improved, and the oxidation of the chip is prevented.

The invention discloses a copper cylinder surface metallization and bonding process based on current-assisted thermocompression bonding, and belongs to the technical field of semiconductor packaging. Comprising the following steps that a nickel layer (2.0 + / -0.3 mu m) and a gold layer (3.0 + / -0.4 mu m, Ra is smaller than or equal to 0.8 mu m) are sequentially electroplated on the surface of a copper cylinder, and then low-temperature bonding of the high-roughness gold layer is achieved under the synergistic effect of applied pulse current (the peak current is 1.2-2.1 A, the duty ratio is 25%-50%, and the frequency is 2 KHz) and gradient pressure (0-200 MPa) in the air environment. Through current-induced Joule heat and interface atom diffusion, the bonding deformation is remarkably reduced, the shearing strength is improved, meanwhile, chip thermal damage caused by a traditional high-temperature process is avoided, the method is suitable for high-density advanced packaging, through precise electroplating control (the total thickness error of a nickel / gold layer is smaller than or equal to 1 micron) and polishing-free design, the chemical mechanical polishing (CMP) procedure is reduced, and the production cost is reduced. And the process period is shortened by 40%.

The invention discloses a thermocompression bonding head and a thermocompression bonding device, and belongs to the field of welding. The thermocompression bonding head comprises a thermoelectric refrigeration element, and the thermoelectric refrigeration element comprises a first element and a second element. A welding head, a heater, a first element and a suction nozzle of the thermocompression bonding head are sequentially connected in the axial direction, and when forward voltage is applied to the first element, the first element absorbs heat on one side of the heater and releases heat on one side of the suction nozzle; the second element is arranged on the peripheral side of the suction nozzle and connected with the heat bin. When forward voltage is applied to the second element, the second element absorbs heat on the side of the suction nozzle and releases heat on the side of the heat bin. The thermocompression bonding head is simple in structure, small in size, rapid in temperature response and capable of effectively improving chip welding processing efficiency and welding quality and optimizing production cost.

The invention provides a thermal compression bonding device of a carrier tape. The thermal compression bonding device reliably and thermally bonds a top tape to the carrier tape. The thermal compression bonding device of the carrier tape is provided with a heating device (40), and the heating device (40) comprises a pair of heating bodies (60, 60) located on the two sides of a cavity (13) of the carrier tape (7) in the width direction. The width (W1) of the preheating region (61) of the heating body (60) is larger than the width (W2) of the pressurizing region (62).

The utility model discloses a garment fabric thermocompression bonding device, which is characterized in that a mounting disc is arranged on a workbench, a plurality of pressing plates with different volumes are arranged on the mounting disc in a sliding manner, and slots for heaters to be inserted are formed in the pressing plates, so that a worker can select the pressing plates with proper sizes according to the volumes of materials; and then the lifting mechanism drives the heating plug-in slot, the heater heats the pressing plate, and the lifting mechanism continues to drive the pressing plate to descend so as to complete the hot pressing operation.

The invention discloses an OCR (Optical Character Reduction) glue pouring process. The method comprises the following steps: S1, incoming material inspection: inspecting an LCM (Liquid Crystal Module), a cover plate and OCR (Optical Character Recognition) glue, and performing full-electric test and appearance defect inspection on the LCM; s2, pretreatment is conducted, specifically, the OC and the CG are cleaned, VHB adhesive tape is pasted to the three edges of the OC, and a glue injection opening is reserved; s3, pre-lamination and glue injection are conducted, specifically, pre-lamination is conducted through an alignment system, and glue injection is conducted through an AB double-liquid glue mixing machine; s4, leveling and vacuum treatment are conducted, intelligent leveling is achieved through a leveling platform deck, and gradient negative pressure defoaming is conducted; and S5, curing and post-treatment are conducted, stepped curing is conducted, defoaming treatment is conducted after stepped curing, then inspection and reinforcement are conducted, and finally packaging and storage are conducted. By means of the glue filling process, the advantages of dynamic glue injection and accurate glue flow control are achieved, pre-sealing is adopted for sealing three edges of VHB, then dynamic sealing is conducted according to a glue injection opening tearing hand, and finally sealing is conducted, and glue filling operation is achieved through gradient negative pressure curing thermocompression bonding.

To provide an adhesive composition capable of suppressing bleeding while having good embedding properties during thermocompression bonding.SOLUTION: The adhesive composition contains a thermosetting resin, a curing agent, an elastomer, and an inorganic filler. The curing agent includes a phenol resin having an alicyclic ring. The content of the elastomer is 10 to 80 parts by mass with respect to 100 parts by mass of the thermosetting resin.SELECTED DRAWING: None

The invention relates to the technical field of display device manufacturing and the like, and provides a production method of a multi-layer FPC control board for display device manufacturing, and the method comprises the steps: achieving the high-precision alignment of functional layers on a reference jig through a mechanical positioning hole and an optical target, and forming an initial laminated body containing a plurality of functional layers; windowing along a preset folding axis by adopting a controlled mold, removing the third copper-clad layer, the second polyimide insulating layer and the AD pure adhesive layer, exposing the back surface of the second copper-clad layer and forming a local thinning area; differential thermocompression bonding is carried out in the mode that main pressure is applied to the non-windowing side and auxiliary pressure is applied to the windowing side, so that a flexible structure is formed in the windowing area, and the non-windowing area keeps the original thickness and rigidity characteristic; and finally, curing and shaping are completed by adopting a preset cooling curve. By means of the method, high-precision interlayer alignment, controllable local windowing, regional difference pressing and rigid-flexible integrated forming can be achieved, and the reliability, consistency and manufacturing efficiency of the FPC control panel in the folding display device are improved.

The utility model relates to the technical field of wafer thermocompression bonding, in particular to an anti-crush thermocompression bonding conveying platform structure which comprises a conveying base and a jig table, the jig table is provided with a suction cup area and a receding area, the edge of the suction cup area is continuous and arc-shaped, the receding area is located on the outer side of the suction cup area, a receding groove is formed in the receding area, and the suction cup area is located in the receding groove. The distance between the groove bottom of the avoiding groove and the bottom face of the jig table is a, the distance between the suction cup area and the bottom face of the jig table is b, an interval groove is further formed between the suction cup area and the avoiding area and is in a continuous ring shape, the distance between the groove bottom of the interval groove and the bottom face of the jig table is c, and c is larger than a and smaller than b. The fixing device has the following effects that the four corners are suspended in the receding grooves, then the corners cannot abut against the bottom faces of the receding grooves, the corners are protected, and the stable fixing effect is achieved.