Patent ID: 6174562
Filing Date: 2001-01-16
Classification: H05K

Abstract:
A method for the manufacturing of solder stop in at least one through plated hole, arranged in a pad to which a component is to be soldered, on a product having a pattern of conductors of electrically conducting material, where the hole in the product has an opening on each side of the product, said method comprising the steps of:applying a solder resist lacquer on the product in order to enable a portion of said applied lacquer to flow down into a top part of the plated hole; andretaining a ring-shaped portion of the applied solder resist lacquer that has flowed in said top part of the hole while removing the lacquer from at least said pad wherein said ring-shaped portion allows air to flow through said plated hole and said solder stop is formed by the retained ring-shaped portion of the solder resist lacquer in the top part of the hole.