Hi All, We are facing a problem, i.e. our PCB supplier have advised they cannot perform ENIG (Immersion Gold) due to the 0.18mm uBGA pads for U29, and have requested OSP (preserved bare copper). In order for PCB supplier to perform ENIG they require the pads to increase from 0.18mm to 0.25mm, which may be possible however there is an increased potential for shorts, and without X-ray in our side. To date we have not used OSP surface finished boards, the downside to using OSP is the shelf life of 3months compared to +1year with ENIG. cid:[log in to unmask] So, could you please share your valued experience on this? Thanks in advance! Best regards, Justin ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________