B23K1/0053

METHOD FOR PRODUCING SOLAR CELL MODULE
20200251607 · 2020-08-06 ·

The present invention provides a method for producing a solar cell module; the present invention is characterized in that: in the process of soldering and connecting crystalline silicon solar cells, the crystalline silicon solar cells are kept still at positions on a bottom layer, and soldering and connecting of all crystalline silicon solar cells are implemented by moving a soldering apparatus or by moving the bottom layer; by means of the method for soldering and connecting crystalline silicon solar cells in the present invention, the process of soldering and connecting crystalline silicon solar cells is simplified and accelerated, and meanwhile, problems such as hidden fractures and power attenuation of the module occurring in the process of soldering and connecting solar cells are resolved.

Soldering printed circuits using radiant heat

Examples are disclosed related to forming solder joints between printed circuits by using radiant heat. One example provides a method of manufacturing an electronic device, the method comprising aligning a contact of a first printed circuit with a via of a second printed circuit. The method further comprises applying radiant heat via an infrared light source to a second surface of the second printed circuit, the radiant heat incident on the via to cause the via to conduct heat to solder located at an interface of the contact and the via, and after heating the solder to reflow, cooling the solder, thereby forming a solder joint between the contact of the first printed circuit and the via of the second printed circuit.

IMPLEMENTING IR REFLECTIVE MASK TO MINIMIZE CTE MISMATCH BETWEEN LAMINATE AND PTH COPPER

A method and structure are provided for implementing manufacture of a printed circuit board (PCB) with one of an infrared (IR) reflective mask or a novel solder mask to minimize coefficient of thermal expansion (CTE) mismatch between PCB laminate and plated through hole (PTH) copper. At least one of an IR-reflective mask and a solder mask composition for use in IR reflow processes is created such that radiant heat is reflected away from the major portion of the PCB yet permitted to impinge upon the PTHs. The copper within the PTH expands due to radiant heating while the bulk laminate expansion is significantly reduced due to the reflected IR radiation. Consequently, the CTE mismatch is minimized and tensile strain of the copper in the PTH is reduced, providing enhanced reliability.

Additive manufacturing method using focused light heating source

The present invention relates to a method of manufacturing a component 1 by additive manufacturing. The method comprises providing a work surface 2 on which the component 1 is to be manufactured, and providing at least one deposition material 3 from which the component 1 is to be composed. The deposition material, typically in the form of wire, is advanced to a localized deposition area 4 where it is added to the component 1 being manufactured. The method further comprises focusing at least one light beam 5 of incoherent light emitted from at least one heating source 6 in the deposition area 4 so that the deposition material 3 is deposited for building up the component 1. At least one light focusing mirror 7 and/or lens 11 is used to focus the incoherent light in the deposition area 4. The invention further relates to the use of such a method in space, such as on a space station, on a space craft or on parabolic flights for testing.

Method for transferring electronic device

A method for transferring an electronic device includes steps as follows. A flexible carrier is provided and has a surface with a plurality of electronic devices disposed thereon. A target substrate is provided corresponding to the surface of the flexible carrier. A pin is provided, and a pin end thereof presses on another surface of the flexible carrier without the electronic devices disposed thereon, so that the flexible carrier is deformed, causing at least one of the electronic devices to move toward the target substrate and to be in contact with the target substrate. A beam is provided to transmit at least a portion of the pin and emitted from the pin end to melt a solder. The electronic device is fixed on the target substrate by soldering. The pin is moved to restore the flexible carrier to its original shape, allowing the electronic device fixed by soldering to separate from the carrier.

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.

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.

METHOD AND SYSTEM FOR BONDING A CHIP TO A SUBSTRATE

A method and system for heat bonding a chip to a substrate by means of heat bonding material disposed there between. At least the substrate is preheated from an initial temperature to an elevated temperature below a damage temperature of the substrate. A light pulse applied to the chip momentarily increases the chip temperature to a pulsed peak temperature below a peak damage temperature of the chip. The momentarily increased pulsed peak temperature of the chip causes a flow of conducted heat from the chip to the bonding material, causing the bonding material to form a bond.

METHOD FOR TRANSFERRING ELECTRONIC DEVICE

A method for transferring an electronic device includes steps as follows. A flexible carrier having a first surface on which the electronic device to be transferred is disposed and a second surface, a target substrate, a target substrate, and a light-transmissible pin having a pressing end are provided. The flexible carrier is spaced from the target substrate with the first surface thereof facing the target substrate. The flexible carrier is deformed by exerting the pin to press the second surface with the pressing end thereof at a position corresponding to the electronic device until the electronic device is in contact with the target substrate. An energy beam emitted from a light source standing outside the pin and then traveling through the pin and going out from the pressing end to bond the electronic device onto the target substrate is applied. The pin is released from pressing the flexible carrier.

Electronic component mounting device

The movement time of a board is shortened in an electronic component mounting device that performs heating and component mounting. Heating and component mounting are performed as a board is moved in the direction of arrow A; the board is moved by an in-conveyor device in the heating region, and by a shuttle device on rails in the component mounting region. When comparing chains with rails, the friction generated between the board is smaller with chains, thus the movement speed of the in-conveyor is faster. This means, compared to a case in which the board is moved by the rails and shuttle device in both the heating region and the component mounting region, the movement time of the board is shorter. Also, because there are no chains below the rails, the movable range of a flow tank is larger, and the component mountable region is larger.