Method for making non-spherical solder ball
AssigneeJoinset Co., Ltd.
InventorSun-Ki Kim
Life of this patent
Estimating the term…
Abstract
Disclosed is a making method for mass-producing non-spherical solder balls. The making method includes: inserting spherical solder balls into non-spherical accommodation grooves; melting the spherical solder balls by heating and filling the accommodation grooves with the molten solder; making non-spherical solder balls by cooling the molten solder; and withdrawing the non-spherical solder balls from the accommodation grooves.
Claims12
A method for making a non-spherical solder ball that mechanically and electrically connects an object by soldering, the method comprising:
- preparing a plurality of spherical solder balls;
- preparing a mold having a plurality of non-spherical accommodation grooves;
- inserting the spherical solder balls into the non-spherical accommodation grooves;
- deforming the spherical solder balls into a shape corresponding to that of each of the non-spherical accommodation grooves and making non-spherical solder balls by applying heat, a pressure, or a combination thereof to the spherical solder balls or the mold in the state in which the spherical solder balls are inserted into the non-spherical accommodation grooves;
- withdrawing the non-spherical solder balls from the non-spherical accommodation grooves;
- and
- sorting the withdrawn non-spherical solder balls according to a preset reference.
A method for making a non-spherical solder ball that mechanically and electrically connects an object by soldering, the method comprising:
- inserting a spherical solder ball having a structure in which a solder or solder alloy is laminated on a spherical metal or polymer core into a non-spherical accommodation groove of an instrument;
- deforming the spherical solder ball into a shape corresponding to that of the accommodation groove by applying physical force to the spherical solder ball;
- melting the solder or solder alloy by heating the deformed spherical solder ball;
- forming a non-spherical solder ball by cooling the melted solder or solder alloy;
- and
- withdrawing the cooled non-spherical solder ball and sorting the withdrawn non-spherical solder ball according to a preset reference.
Dependencies are inferred from the claim text.