B23K1/00

Method of forming electrical connections with solder dispensing and reflow

A method for interconnecting multiple components of a head-gimbal assembly with a solder joint, including the steps of positioning a first component adjacent to and at an angle relative to a second component to provide a connection area between the first and second components, dispensing a solder sphere to a capillary tube having tapered walls, wherein the capillary tube is positioned with an exit orifice above the connection area between the first and second components, pressurizing the capillary tube until a predetermined pressure is reached, applying a first laser pulse to the solder sphere to liquefy the solder sphere until it falls from the exit orifice, waiting for a predetermined time period after the liquefied solder sphere has exited the exit orifice of the capillary tube, and applying a second laser pulse to reflow the solder sphere to create the solder joint between the first and second components.

Method and an apparatus for producing a radio-frequency identification transponder
11544515 · 2023-01-03 · ·

Method and apparatus for producing RFID transponders (400) arranged on a carrying substrate, comprising:providing a first substrate (100), the first substrate having at least one antenna element (101) arranged thereon, and preferably several antenna elements arranged sequentially thereon along a longitudinal extension of the first substrate, each antenna element being formed by an electrically conductive pattern; providing a second substrate (200), the second substrate (200) having at least one RFID strap, each RFID strap comprising an IC (202) and at least one contact pad (201) coupled to the IC, and preferably several RFID straps being arranged sequentially along a longitudinal extension of the second substrate; and electrically connecting an antenna element (101) on the first substrate to the at least one contact pad on the second substrate by bringing said first and second substrates together, thereby bringing said antenna element in mechanical contact with said at least one contact pad, and heating the contact pad(s) to a temperature at least equal to a characteristic melting point of said at least contact pads, thereby electrically connecting the antenna element to said at least one contact pad.

Ultrasonic-assisted solder transfer

Apparatus and methods are disclosed for transferring solder to a substrate. A substrate belt moves one or more substrates in a belt direction. A decal has one or more through holes in a hole pattern that hold solder. Each of the solder holes can align with respective locations on one of the substrates. An ultrasonic head produces an ultrasonic vibration in the solder in a longitudinal direction perpendicular to the belt direction. The ultrasonic head and substrate can be moved together in the longitudinal direction to maintain the ultrasonic head in contact with the solder while the ultrasonic head applies the ultrasonic vibration. Various methods are disclosed including methods of transferring the solder with or without external heating.

METHOD FOR MANUFACTURING LASER PACKAGE

A laser package includes: a substrate having an upper surface; a first laser element disposed on the substrate and configured to emit light in a first direction; a first optical member having a lower surface bonded to the upper surface of the substrate, a reflecting surface inclined relative to the lower surface and configured to reflect the light, and an upper surface connected to the reflecting surface, the upper surface of the first optical member being located farther in the first direction than the reflecting surface; and a bonding material disposed on the upper surface of the substrate. The first optical member is bonded to the substrate via the bonding material. In a top view, a portion of the bonding material protrudes from three sides of the upper surface of the first optical member.

Mixed composition coating material for brazing

In a mixed composition coating material for brazing, when a total mass of a solid material, an organic solvent, and water is defined as 100 mass %, the solid material are contained in an amount of 30 mass % or greater and 80 mass % or less with respect to the whole coating material, the organic solvent and the water is contained in a total amount of 20 mass % or greater and 70 mass % or less with respect to the whole coating material, and the water is contained in an amount of 0.4 mass % or greater and 2.5 mass % or less with respect to the whole coating material.

System and method for bonding a cable to a substrate using a die bonder

A method of bonding a double-ended cable to a multi-tier substrate (such as a multi-tier printed circuit board) includes picking up the double-ended cable, and imaging alignment markers on a first head of the double-ended cable, a second substrate of the multi-tier substrate, a second head of the double-ended cable, and a first substrate of the multi-tier substrate. The method also includes aligning the alignment marker on the first head of the cable to the alignment marker on the second substrate of the multi-tier substrate, coupling the first head of the cable to the second substrate, and releasing the first head of the cable. The method further includes aligning the alignment marker on the second head of the cable to the alignment marker on the first substrate of the multi-tier substrate, coupling the second head of the cable to the first substrate, and releasing the second head of the cable.

MOUNTING WIRING BOARD, ELECTRONIC DEVICE MOUNTING BOARD, METHOD OF MOUNTING ELECTRONIC DEVICE, MICROWAVE HEATING METHOD, AND MICROWAVE HEATING APPARATUS

A mounting wiring board, containing a base, an electrode portion disposed on the base, and a heat generation pattern disposed on the electrode portion and to be heated by a standing wave of a microwave, in which an occupation area of the heat generation pattern is smaller than an area of an upper surface of the electrode portion; an electronic device mounting board using the mounting wiring board; a method of mounting the electronic device; a microwave heating method, which contains heating an object to be heated provided via the heat generation pattern; and a microwave heating apparatus.

TURBOMACHINE MANUFACTURE AND REPAIR METHOD USING ADDITIVE MANUFACTURED BRAZE PREFORMS

Additive manufacturing techniques are used to achieve customized preforms for repair or manufacture of turbomachinery. A method of modifying a section of a product includes forming, a preform set to fit the section. A base material is selected with properties desired for the modification of the section. A binder is selected that vaporizes at a temperature below a melting point of the base material. The preform set is built by the selective application of the binder to the base material to achieve design dimensions of the section when the preform is joined to the section. The section is prepared for effecting the extent of modification and the preform is positioned on the section. The section and the preform are heated to substantially eliminate the binder from the preform and then thermally processed to harden the preform and to bond the preform to the section.

Brazing a heat exchanger with a moving brazing tool
11529695 · 2022-12-20 · ·

A method and apparatus for manufacturing a brazed heat exchanger. The method includes the steps of: assembling the heat exchanger components to form at least one unbrazed heat exchanger core in a core builder machine; without removing the at least one heat exchanger core from the core builder machine, enclosing the heat exchanger core with a brazing tool arrangement adapted to form a chamber, optionally, evacuating the chamber and/or filling the chamber with a controlled atmosphere; brazing the heat exchanger core in the chamber to form a brazed heat exchanger.

Operation of an Assembly Line

Various embodiments of the teachings herein include a device for detecting process parameters during a pass through an assembly line for assembling electronic components and/or for applying joining materials. The device may include: a carrier for transport by a conveying system of the assembly line and configured to receive a test plate; a sensor for measuring a process parameter during the pass; and a force sensor arranged to detect a force acting on the test plate during the pass.