申请人:International Business Machines
Corporation
公开号:EP0653904A2
公开(公告)日:1995-05-17
The present invention permits solder joints to be made directly to via and through holes without the solder being wicked into the vias or through holes, by filling plated through holes (14) with an epoxy or cyanate fill composition (16). When cured and overplated, the fill composition (16) provides support for the solder joint (22) and provides a flat solderable surface (18) for the inter-connection. In certain embodiments, the cured fill compositions, offer a further advantage of being conductive. The invention also relates to several novel methods for filling through holes with such fill compositions, and to resistors located in through holes and vias.
本发明通过用环氧树脂或氰酸酯填充组合物(16)填充电镀通孔(14),可直接在通孔和通孔上形成焊点,而无需将焊料泼洒到通孔或通孔中。当固化和过镀时,填充成分 (16) 可为焊点 (22) 提供支撑,并为互连提供平整的可焊表面 (18)。在某些实施例中,固化的填充组合物还具有导电的优点。本发明还涉及几种用这种填充组合物填充通孔的新方法,以及位于通孔和过孔中的电阻器。