手機布線要求BB/RF/layout Training SessionGary HsuBientecTypical PCB structure (1/3)4 20 4 16 8 16 8L1 L220 8 12 4 8 8 4 18L312Ln-224 5 12Ln-1 Ln N>=8241812Unit: mil2BientecTypical PCB structure (2/3)Multi-Layer Structure6 860um +/-10%Number of layers: Total thickness (measured on solder resist):Layer 1 copper thickness----------------------------------------------------0.7mil Epoxy 1 thickness (rcc)------------------------------------------------------2.0mil Layer 2 copper thickness----------------------------------------------------1.4mil Epoxy 2 thickness (Prepreg FR4)--------( 1080 x 2 ) ---------------5.5mil Layer 3 copper thickness----------------------------------------------------1.4mil Epoxy 3 thickness (Core FR4)----------------------------------------……
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