IP Library Granted Patent US 12,502,722
Granted Patent B2
US 12,502,722 · App. 17/864,760 · Granted Dec 23, 2025

Method for heating a soldered joint

Inventors: Cédric Benaben (Toulouse, FR); Stéphane Vitali (Toulouse, FR)
Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
B23K1/018B23K3/047H01L24/98H05K13/0486B23K2101/42
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,502,722
App. No.
17/864,760
Granted
Dec 23, 2025
Kind
B2
Abstract

A method for a heating device suitable for heating at least one soldered joint between an electronic component including at least a first contact mound and a printed circuit board. The soldered joint on the one hand securing the electronic component to the printed circuit board and on the other hand, while providing electrical continuity, the electronic component also having an electronic-component width, and an electronic-component thickness, wherein it includes an electrical-connection suitable for being coupled to an electrical power supply and a heater suitable for reaching a temperature at least equal to the melting point of the solder.

Claims (11)

1 . A method for heating, with a heating device, at least one soldered joint between an electronic component or a complex electronic component pre-attached on a printed circuit board with a space separating the electronic component from the printed circuit board, the method comprising:

providing the heating device includes electrical-connection means attached to heating means, said heating means suitable for reaching a temperature at least equal to a melting point of a solder of the at least one solder joint;

coupling the electrical-connection means to an electrical power supply to activate the heating means;

placing the heating device in an area adjacent to the solder of the at least one soldered joint between the pre-attached electronic component and the printed circuit board at the space separating said pre-attached electronic component from the printed circuit board;

activating the electrical power supply to pre-heat the heating means until the temperature reaches the temperature at least equal to the melting point of the solder of the at least one solder joint;

moving the heating means under the pre-attached electronic component against the at least one solder joint at a predetermined speed to melt the solder of the at least one solder joint, wherein the predetermined speed is related to a rate at which the temperature of the heating means reaches the melting point of the solder of the at least one solder joint; and

melting the solder of the at least one solder joint while moving the heating means between the pre-attached electronic component and the printed circuit board until the pre-attached electronic component is fully desoldered and separated from the printed circuit board.

2 . The method as claimed in claim 1 , wherein in the providing the heating device, the heating means has a cylindrical shape or a parallelepipedal shape.

3 . The method as claimed in claim 1 , wherein in the providing the heating device, the heating means has a thickness smaller than a height of the solder of the at least one solder joint between the electronic component or the complex electronic component pre-attached on the printed circuit board.

4 . The method as claimed in claim 1 , wherein a width of the pre-attached electronic component is less than a length of the heating means.

5 . The method as claimed in claim 1 , wherein the melting the solder further comprises removing the pre-attached electronic component from the printed circuit board.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 29, 2025
From: VITESCO TECHNOLOGIES GMBH
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 072774/0843 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2025
From: CONTINENTAL AUTOMOTIVE GMBH; CONTINENTAL AUTOMOTIVE FRANCE
To: VITESCO TECHNOLOGIES GMBH
Reel/Frame 072081/0561 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 15, 2022
From: BENABEN, CÉDRIC; VITALI, STÉPHANE
To: CONTINENTAL AUTOMOTIVE FRANCE; CONTINENTAL AUTOMOTIVE GMBH
Reel/Frame 061771/0195 →