B23K1/203

Solderless inter-component joints
10390440 · 2019-08-20 · ·

In a die-substrate assembly, a copper inter-component joint is formed by bonding corresponding copper interconnect structures together directly, without using solder. The copper interconnect structures have distal layers of (111) crystalline copper that enable them to bond together at a relatively low temperature (e.g., below 300 C.) compared to the relatively high melting point (about 1085 C.) for the bulk copper of the rest of the interconnect structures. By avoiding the use of solder, the resulting inter-component joint will not suffer from the adverse IMC/EM effects of conventional, solder-based joints. The distal surfaces of the interconnect structures may be curved (e.g., one concave and the other convex) to facilitate mating the two structures and improve the reliability of the physical contact between the two interconnect structures. The bonding may be achieved using directed microwave radiation and microwave-sensitive flux, instead of uniform heating.

FLUX TRANSFER METHOD
20190247944 · 2019-08-15 ·

A flux transfer tool includes a frame, a plunger, a baseplate, a flux supplier and a driving mechanism. The frame has a chamber. The plunger is movably disposed in the chamber. The baseplate is mounted on the frame. The baseplate has a plurality of holes formed thereon. The flux supplier is connected to the frame and contains a flux. The flux supplier supplies the flux to the chamber between the plunger and the baseplate. The driving mechanism is disposed on the frame. The driving mechanism drives the plunger to move towards the baseplate to squeeze the flux out of the holes of the baseplate. The driving mechanism drives the plunger to move away from the baseplate to keep the flux in the chamber.

COMPONENT MOUNTING METHOD, COMPONENT MOUNTING SYSTEM, AND MANUFACTURING METHOD OF COMPONENT MOUNTING BOARD

In component mounting for mounting a pin connecting component having a pin on a board having a through-hole electrode, a solder paste is printed on the through-hole electrode through a screen mask having an opening corresponding to the through-hole electrode, a flux is transferred onto the pin by holding the pin connecting component and immersing the pin into a flux tank filled with the flux, and the pin onto which the flux is transferred is inserted into the through-hole electrode on which the solder paste is printed to mount the pin connecting component on the board.

APPARATUS FOR SECURING A PAIR OF PIPES
20190249803 · 2019-08-15 ·

An apparatus for securing a pair of pipes is disclosed. The apparatus includes a sleeve member having an inner surface and an outer surface. The inner surface of the sleeve member is adapted to conform to an exterior surface of at least one of the pair of pipes. The apparatus also includes a groove formed in the inner surface of the sleeve member. The apparatus further includes an electrical heating element disposed with the inner surface of the sleeve member such that the electrical heating element is in contact with at least one of the pair of pipes when the sleeve member is engaged therewith.

Transient liquid phase bonding process and assemblies formed thereby

Processes of joining substrates via transient liquid phase bonding (TLPB). The processes include providing an interlayer of a low melting temperature phase (LTP) that includes Sn and Bi between and in contact with at least two substrates, and heating the substrates and the interlayer therebetween at a processing temperature equal to or above 200 C. such that the interlayer liquefies and the LTP interacts with high melting temperature phases (HTPs) of the substrates to yield isothermal solidification of the interlayer. The processing temperature is maintained for a duration sufficient for the interlayer to be completely consumed and a solid bond is formed between the substrates. Also provided are assemblies formed by the above noted processes.

SELF-HEATING SOLDER FLUX MATERIAL

A self-heating solder flux material includes a solder flux material and a multi-compartment microcapsule. The solder flux material includes a solvent carrier, and the multi-compartment microcapsule includes a first compartment, a second compartment, and an isolating structure. The first compartment contains a first reactant, and the second compartment contains a second reactant. The isolating structure separates the first compartment from the second compartment. The isolating structure is adapted to rupture in response to a stimulus.

SOLDERLESS INTER-COMPONENT JOINTS
20190239361 · 2019-08-01 ·

In a die-substrate assembly, a copper inter-component joint is formed by bonding corresponding copper interconnect structures together directly, without using solder. The copper interconnect structures have distal layers of (111) crystalline copper that enable them to bond together at a relatively low temperature (e.g., below 300 C.) compared to the relatively high melting point (about 1085 C.) for the bulk copper of the rest of the interconnect structures. By avoiding the use of solder, the resulting inter-component joint will not suffer from the adverse IMC/EM effects of conventional, solder-based joints. The distal surfaces of the interconnect structures may be curved (e.g., one concave and the other convex) to facilitate mating the two structures and improve the reliability of the physical contact between the two interconnect structures. The bonding may be achieved using directed microwave radiation and microwave-sensitive flux, instead of uniform heating.

Electronic component structures with reduced microphonic noise

An electronic device is described wherein the electronic device comprises a substrate with a first conductive metal layer and a second conductive metal layer. A first microphonic noise reduction structure is in electrical contact with the first conductive metal layer wherein the first microphonic noise reduction layer comprises at least one of the group consisting of a compliant non-metallic layer and a shock absorbing conductor comprising offset mounting tabs with a space there between coupled with at least one stress relieving portion. An electronic component comprising a first external termination of a first polarity and a second external termination of a second polarity is integral to the electronic device and the first microphonic noise reduction structure and the first external termination are adhesively bonded by a transient liquid phase sintering adhesive.

DEVICE PACKAGING FACILITY AND METHOD, AND DEVICE PROCESSING APPARATUS UTILIZING DEHT
20190229086 · 2019-07-25 · ·

Provided are a device packing facility and method using DEHT and a device processing apparatus utilizing the DEHT. The device packaging facility includes a mounting unit providing bis(2-ethylhexyl) terephthalate (DEHT) between first and second devices to attach the first and second devices to each other, a processing unit thermally processing the first and second devices that are attached to each other to remove the DEHT and fix the first and second devices to each other, and a transfer unit transferring the first and second devices that are attached to each other from the mounting unit to the processing unit.

Coating concept
10335881 · 2019-07-02 · ·

The present invention relates to composition comprising a blend of at least one boron source and at least one silicon source, and the composition further comprises particles selected from particles having wear resistance properties, particles having surface enhancing properties, particles having catalytic properties or combinations thereof, wherein the blend comprises boron and silicon in a weight ratio boron to silicon within a range from about 3:100 wt:wt to about 100:3 wt:wt, wherein silicon and boron are present in the blend in at least 25 wt %, and wherein the at least one boron source and the at least one silicon source are oxygen free except for inevitable amounts of contaminating oxygen, and wherein the blend is a mechanical blend of particles in and the particles have an average particle size less than 250 m. The present invention relates further to a method for providing a coated product and a coated product obtained by the method.