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飞控板工作在强振动、大电流、射频密集的环境里。这块 4 层板把电源层与敏感的模拟传感器层分开，并在 MCU 正下方铺完整地平面，使陀螺仪与气压计走线保持干净。
每块拼板都经过飞针电气测试，每个生产批次都会测量并记录阻抗测试条，检测报告随货发出。打样起订 5 片；500 片以上的批量可以重新拼板以提升材料利用率——请在询价单里注明预计年用量。
Yes. The same Gerber and stack-up review applies; we fabricate the board only on Dongguan-managed lines, with no component sourcing and no SMT.
Gerber files plus a one-line note on quantity, layer count, thickness and surface finish. BOM and pick-and-place files are only needed if you also want assembly.
2-8 layer prototypes typically ship in about 48 hours after the files are confirmed; small batches run from 5 pcs to 5,000 pcs on the same QC checklist.
AOI on the bare board, plus FAI and X-ray where assembly is involved. Every order is inspected against the same ZiLian checklist.