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Need details for SDRAM board fabrication


I am trying to get SDRAM board fabricated as given in the details of  TI website:

I need details like Material(Specify clearly whether High Tg or Normal Tg), Impedance control (Yes/No) with tolerance , Copper finish (35 microns/70 microns/ any other), Min. Annular ring (mil), Board finish(Hot Air Leveled/ Electroless Ni-Au / Hard Gold / any other). These details are required by the PCB manufacturing team. Can anyone help me to get this data?



  • Hello Arun,

    The board may be Normal Tg, No Impedance control, HASL finish. The min annular ring is 6 mil, if I remember correctly. However this is strange that a PCB manufacturing house requires this information, as some of the aspects like annular ring they can extract from the gerber.