Basket jig for electroless plating apparatus and electroless plating method

Abstract

The present invention relates to a basket jig for an electroless plating apparatus and an electroless plating method. A basket jig for an electroless plating apparatus in accordance with the present invention includes a basket loaded thereon a plurality of printed circuit boards, a rotating structure coupled to top portions of both sides of the basket and a tube in a shape of a rectangular plate coupled to bottom portions of the basket.

What is claimed is: 
     
         1 . A basket jig for an electroless plating apparatus comprising:
 a basket loaded thereon a plurality of printed circuit boards;   a rotating structure coupled to top portions of both sides of the basket; and   a tube in a shape of a rectangular plate coupled to bottom portions of the basket.   
     
     
         2 . The basket jig for an electroless plating apparatus according to  claim 1 , wherein the rotating structure includes a carrier to move up and down, a bearing placed in a bottom portion and a rotating axis coupled to the bearing of which end portions are connected to the basket. 
     
     
         3 . The basket jig for an electroless plating apparatus according to  claim 2 , wherein the tube is divided in such a way that materials having different densities from each other are arranged on a front part and a rear part. 
     
     
         4 . The basket jig for an electroless plating apparatus according to  claim 2 , wherein the tube has a side surface in a shape of a trapezoid or a triangle as a structure to have a long front part and a short rear part. 
     
     
         5 . The basket jig for an electroless plating apparatus according to  claim 2 , wherein a point is formed on the tube to be separated from a bottom front part of the basket at a predetermined interval. 
     
     
         6 . The basket jig for an electroless plating apparatus according to one of  claims 1  to  5 , wherein the tube is made of a corrosion resistant material capable of protecting the corrosion from a plating solution. 
     
     
         7 . The basket jig for an electroless plating apparatus according to  claim 6 , wherein the tube is made of a material with a density lower than that of the plating solution. 
     
     
         8 . The basket jig for an electroless plating apparatus according to  claim 7 , wherein the tube is made of a material selected from a group consisting of polytetrafluoreethylene (PTFE), polyvinyl chloride (PVC), polypropylene, fiberglass-reinforced plastics, polyethylene, furan, epoxy, polyester, vinyl ester, urethane, natural rubber, neporpene, butyl rubber, chlorobutyl rubber, chlorosulfonated polyethylene (CSPE), fluororcarbons or the like. 
     
     
         9 . An electroless plating method comprising:
 placing a basket jig for an electroless plating apparatus;   immersing the basket jig for the electroless plating apparatus into a plating bath where a plating solution exists;   performing a plating on a printed circuit board by immersing all the basket jig for the electroless plating apparatus into the plating solution; and   extracting the basket jig for the electroless plating apparatus from the plating bath.   
     
     
         10 . The electroless plating method according to  claim 9 , wherein, in immersing the basket jig for the electroless plating apparatus into the plating bath, a rotation of a basket is generated by generating a difference of buoyancy due to a density difference. 
     
     
         11 . The electroless plating method according to  claim 9 , wherein, in immersing the basket jig for the electroless plating apparatus into the plating bath, a top position and a bottom position of a basket are in reverse. 
     
     
         12 . The electroless plating method according to  claim 9 , wherein, in immersing the basket jig for the electroless plating apparatus into the plating bath, a rotation of the basket is generated due to a self-weight generated since the buoyancy becomes smaller.