In general, the disclosure is directed toward transmitting radiant energy across a boundary of a medical device via an optical feedthrough. A system for transmitting radiant energy across a boundary of a medical device includes a first functional module of a medical device, a second functional module of the medical device, an optical feedthrough assembly coupled to the first functional module, and a radiant energy source that emits a beam through the optical feedthrough assembly to perform a manufacturing process on the first functional module and the second functional module.

A sensor device includes a body case provided with an opening, and a body cover assembled to the body case to cover the opening. The body cover has at an outer peripheral portion thereof an overlapping region overlapping a portion of the body case located at a peripheral edge of the opening. The body cover is fixed to the body case by providing a welded portion surrounding the opening using laser-welding at a portion distant from an end surface of the body cover in a boundary of the overlapping region of the body cover and a portion of the body case overlapping the overlapping region.

A method for laser welding of a workpiece includes welding at a corner joint of two workpiece parts of the workpiece by a welding laser beam to create an aluminum connection between the two workpiece parts, and feeding an output laser beam into a first end of a multiclad fiber to generate the welding laser beam. The multiclad fiber comprises at least a core fiber and a ring fiber surrounding the core fiber. A first portion LK of a laser power output of the output laser beam is fed into the core fiber, and a second portion LR of the laser power output of the output laser beam is fed into the ring fiber. A second end of the multiclad fiber is reproduced on the workpiece. The method further includes welding the workpiece by deep welding.

A method of manufacturing a heat dissipation device is disclosed. The heat dissipation device manufactured with the method includes two titanium metal sheets and a metal mesh. According to the method, the two titanium metal sheets and the metal mesh are subjected to a surface treatment, so that surface of any one of the titanium metal sheets and the metal mesh is modified to form a hydrophilic layer. With these arrangements, the titanium metal material can be freely plastically deformed and possess a capillary force, and the titanium metal sheet can therefore be used in place of the conventional copper sheet to serve as a material for making heat dissipation devices. The heat dissipation devices so produced can have largely reduced weight and largely improved heat dissipation performance.

In a battery case sealing method, a lid is fitted to an opening of a battery case, and then a side wall on an inner side of the battery case and a side surface of the lid are brought into contact with each other. The side wall forms the opening. In a state where the side wall on the inner side of the battery case is in contact with the side surface of the lid, a boundary portion between the side wall and the side surface of the lid is welded by irradiating a laser beam in a direction from an outer side of the battery case toward the inner side of the battery case in a thickness direction of the lid.

A hermetically sealed package includes: a heat-dissipating base substrate configured for dissipating heat from the hermetically sealed package; a cap arranged on the heat-dissipating base substrate, the cap and the heat-dissipating base substrate jointly forming at least a part of the package; at least one functional area hermetically sealed by the package; at least one laser bonding line configured for hermetically sealing the package, the laser bonding line having a height perpendicular to a bonding plane of the laser bonding line.

A steel sheet that is welded and then cold rolled to a thickness between 0.5 mm and 3 mm, the deformation ratio created by cold rolling in the base metal is equal to ε.sub.MB, for which the deformation ratio created by the cold rolling in the welded joint is equal to ε.sub.S, where:

[00001]$0.4\le \frac{\mathrm{.Math.S}}{\mathrm{.Math.}MB}<0.7.$

Disclosed herein are sealed devices comprising a first substrate, a second substrate, an inorganic film between the first and second substrates, and at least one weld region comprising a bond between the first and second substrates. The weld region can comprise a chemical composition different from that of the inorganic film and the first or second substrates. The sealed devices may further comprise a stress region encompassing at least the weld region, in which a portion of the device is under a greater stress than the remaining portion of the device. Also disclosed herein are display and electronic components comprising such sealed devices.

A method and apparatus comprising a manufacturing process, equipment and a product. The manufacturing process and equipment configured to produce very high precision parts using a laser beam. Embodiments of the manufacturing process and equipment provide an improved method for the production of supercapacitors with critical dimensions on the order of one to fifty microns that can store electricity at very high energy densities using a modified laser beam. Using the manufacturing process and equipment, the proposed improvements allow the production of key parts thousands of times faster than what can be achieved using the usual process, resulting in a manufacturing time suitable for mass production.

A laser welding system for sealing welding a cell top cover includes a laser emitting device for generating a scanning welding laser beam to be irradiated to a portion of the cell top cover to be welded, and a control device for controlling the laser emitting device to perform continuous scanning sealing welding on the cell top cover. The laser welding system is configured to complete the sealing welding of the cell top cover at only one work station.