A system for assembling a vehicular window assembly includes a heating device that, when electrically operated, heats an electrical connector disposed at a glass panel of a vehicular window assembly to heat and melt solder disposed between the electrical connector and an electrically conductive trace established at the glass panel to form a solder joint providing electrically-conductive connection between the electrical connector and the electrically conductive trace established at the glass panel. A temperature sensor captures sensor data indicative of a temperature of the electrical connector and the solder. The system, based on processing at an electronic control unit (ECU) of the captured sensor data, adjusts electrical operation of the heating device to adjust the temperature of the electrical connector and the solder during the soldering process that forms the solder joint.

An intelligent soldering cartridge that includes: a housing; a solder tip; a heater for heating the solder tip; a storage device for storing information about characteristics of the cartridge; a processor for retrieving the information about characteristics of the cartridge, monitoring the power level delivered to the solder tip to detect liquidus occurrence at a solder joint, determining a thickness of an intermetallic compound (IMC) of the solder joint using some of the retrieved information, determining whether the thickness of the IMC is within a predetermined range, and generating an indication signal indicating that a reliable solder joint connection is formed when the thickness of the IMC is within the predetermined range; and an interface for transmitting the indication signal.

According to an aspect of the invention there is provided a reflow soldering method for manufacturing an electronic circuit board including a first component and a second component, wherein the first component has a first thermal mass, the second component has a second thermal mass and wherein the second thermal mass is different to the first thermal mass. The reflow soldering method includes: applying a solder paste to a substrate to be soldered; applying the first component to the substrate; applying the second component to the substrate; providing a heating control means proximal to one or both of the first component and the second component; forming a first solder joint between the first component and the substrate by heating the first component and the substrate; and forming a second solder joint between the second component and the substrate using the heater.

The present disclosure discloses a reflow oven for processing a circuit board, the reflow oven comprising a heating zone having a plurality of heating sub-zones, in which the plurality of heating devices are arranged in corresponding heating sub-zones of the plurality of heating sub-zones, and each of the plurality of heating devices is configured such that a working temperature of the corresponding heating sub-zone is in a predetermined temperature interval; a start-stop device configured to activate or deactivate the plurality of heating devices, and configured to activate and deactivate the plurality of heating devices according to predetermined time intervals in a process during which the circuit board sequentially passes through the plurality of heating sub-zones, such that a working temperature of each of the plurality of heating sub-zones is in a corresponding predetermined temperature interval.

Method and System for Soldering Flexible Printed Circuit, wherein the soldering method comprises: S100: creating windows in flexible flat cable; S200: applying solder paste at window positions; S300: performing solder paste inspection; S400: attaching double-sided tape near the solder paste; S500: adhering and assembling branch circuit boards at double-sided tape positions; S600: soldering branch circuit boards to flexible flat cable at window positions. This method involves no pollution during production, achieves high processing precision, and maintains low production costs.