Patent ID: 7007378
Filing Date: 2006-03-07
Classification: H05K,Y10T

Abstract:
1. A process for manufacturing a printed wiring board having a land grid array comprising the steps of: a) providing a personalized printed wiring board comprising copper circuitry and copper pads disposed on at least one lateral surface of said printed wiring board said copper pads comprising upper and sidewall surfaces, said personalized wiring board being absent a commoning structure; b) selectively covering said copper circuitry with a resist; c) using a non-electrolytic process, plating nickel onto said copper pad upper and sidewall surfaces; d) using a non-electrolytic process, plating a first precious metal onto said nickel; e) using a non-electrolytic process, plating a second, soft precious metal onto said first precious metal; and f) removing said resist, wherein at least one of said plated materials conformally covers upper and sidewall surfaces of said copper pad.