A processing apparatus is equipped with: a first stage system that has a table on which a workpiece is placed and moves the workpiece held by the table; a beam irradiation system that includes a condensing optical system to emit beams; and a controller to control the first stage system and the beam irradiation system, and processing is performed to a target portion of the workpiece while the table and the beams from the condensing optical system are relatively moved, and at least one of an intensity distribution of the beams at a first plane on an exit surface side of the condensing optical system and an intensity distribution of the beams at a second plane whose position in a direction of an optical axis of the condensing optical system is different from the first plane can be changed.

A processing apparatus is equipped with: a first stage system that has a table on which a workpiece is placed and moves the workpiece held by the table; a beam irradiation system that includes a condensing optical system to emit beams; and a controller to control the first stage system and the beam irradiation system, and processing is performed to a target portion of the workpiece while the table and the beams from the condensing optical system are relatively moved, and at least one of an intensity distribution of the beams at a first plane on an exit surface side of the condensing optical system and an intensity distribution of the beams at a second plane whose position in a direction of an optical axis of the condensing optical system is different from the first plane can be changed.

The present disclosure provides methods of forming products using one or more lasers. In at least one aspect, a method for powder bed additive manufacturing includes defining a uniform pitch raster path for a laser traveling at a predetermined rate of travel. The raster path alternates back and forth within a strip width of less than 0.5 mm such that the laser's power density level is at least 80 percent of maximum power and the predetermined rate of travel yields a travel speed in the scan width direction of not less than 1,000 mm/s. The method includes depositing a layer of powder onto a substrate and causing the laser to solidify a quantity of the powder according to the defined raster path and the laser power setting.

The present disclosure provides methods of forming products using one or more lasers. In at least one aspect, a method for powder bed additive manufacturing includes defining a uniform pitch raster path for a laser traveling at a predetermined rate of travel. The raster path alternates back and forth within a strip width of less than 0.5 mm such that the laser's power density level is at least 80 percent of maximum power and the predetermined rate of travel yields a travel speed in the scan width direction of not less than 1,000 mm/s. The method includes depositing a layer of powder onto a substrate and causing the laser to solidify a quantity of the powder according to the defined raster path and the laser power setting.

An in-fiber beam scanning system may comprise an input fiber to provide a beam, a feeding fiber comprising an imaging bundle with multiple cores embedded in a first cladding that is surrounded by a second cladding, and an in-fiber beam shifter that comprises a first multibend beam shifter coupled to the input fiber, a graded index fiber following the first multibend beam shifter, and a second multibend beam shifter following the graded index fiber and coupling into the feeding fiber. In some implementations, the first multibend beam shifter is actuated by a first amount and the second multibend beam shifter is actuated by a second amount to shift the beam in two dimensions and deliver the beam into one or more target cores in the imaging bundle.

An in-fiber beam scanning system may comprise an input fiber to provide a beam, a feeding fiber comprising an imaging bundle with multiple cores embedded in a first cladding that is surrounded by a second cladding, and an in-fiber beam shifter that comprises a first multibend beam shifter coupled to the input fiber, a graded index fiber following the first multibend beam shifter, and a second multibend beam shifter following the graded index fiber and coupling into the feeding fiber. In some implementations, the first multibend beam shifter is actuated by a first amount and the second multibend beam shifter is actuated by a second amount to shift the beam in two dimensions and deliver the beam into one or more target cores in the imaging bundle.

A method of additive manufacture is disclosed. The method may include providing a powder bed and directing a shaped laser beam pulse train consisting of one or more pulses and having a flux greater than 20 kW/cm.sup.2 at a defined two dimensional region of the powder bed. This minimizes adverse laser plasma effects during the process of melting and fusing powder within the defined two dimensional region.

A method of additive manufacture is disclosed. The method may include providing a powder bed and directing a shaped laser beam pulse train consisting of one or more pulses and having a flux greater than 20 kW/cm.sup.2 at a defined two dimensional region of the powder bed. This minimizes adverse laser plasma effects during the process of melting and fusing powder within the defined two dimensional region.

The laser reflow apparatus of the present invention comprises a laser pressurization head module for pressing a bonding object, which includes a plurality of electronic components arranged on a substrate by a transmissive pressurization member while irradiating a laser beam through the pressurization member, to bond the electronic components to the substrate; and a bonding object transfer module for transferring the bonding object having transferred from one side of the laser pressurization head module to carry the bonding object to the other side thereof after passing through a reflow process of the laser pressurized head module.

A stacked aluminum electrolytic capacitor includes a lead frame, a capacitor set, and at least one laser welding area. The lead frame includes a positive electrode end and a negative electrode end spaced from the positive electrode end. The capacitor set includes a plurality of stacked capacitor elements each having a positive electrode portion electrically connected to the positive electrode end and a negative electrode portion electrically connected to the negative electrode end. The at least one laser welding area is configured by a laser source capable of emitting a laser beam to perform laser welding on the positive electrode end and the positive electrode portion to form a fusion connection therebetween.