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Subclass of:

228 - Metal fusion bonding

228101000 - PROCESS

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
228164000 Prior to bonding 78
228155000 Subsequent to bonding 48
228265000 With concurrent bonding 6
228144000 And edge joining of one piece blank or strip 6
228153000 Lap joining of parts of nonplanar surfaces 1
20120273556TOWER PRODUCTION METHOD - A tower production method, comprising a first production stage including the steps of unrolling and bringing into a planar state a sheet metal wound around a coil; bending the planar sheet metal at the lateral direction at varying bending radii; and winding the bent sheet metal into a conical coil, as well as a final production stage yielding the tower and including the steps of feeding the sheet metal unwound from the conical coil to at least one winding machine, and bending and winding the bent sheet metal in the winding machine around a central bending axis parallel to one surface thereof so that a defined initial winding radius and the angle between a longer edge thereof and the axis are kept constant and the longer edge of the sheet metal is joined over itself.11-01-2012
Entries
DocumentTitleDate
20130334291METHOD OF FORMING SOLDER ON PAD ON FINE PITCH PCB AND METHOD OF FLIP CHIP BONDING SEMICONDUCTOR USING THE SAME - Disclosed are a method of forming a solder on pad on a fine pitch PCB and a method of flip chip bonding a semiconductor device using the same. The method of forming a solder on pad on a fine pitch PCB includes: applying a solder bump maker (SBM) paste with a predetermined thickness to an entire surface of a PCB including a metal pad and a solder mask; heating the SBM paste at a temperature higher than a melting point of solder contained in the SBM paste and then cooling the SBM paste to form a solder on pad; and washing a residual polymer resin and residual solder particles of the SBM paste by using a solvent.12-19-2013

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