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Annular rings

An annular ring is the circumferential copper ring around a plated contact.

Example – Standard

Example – Microvia

Example – Component hole

Attention:

  • You should design the annular rings as large as possible (annular ring ≥ 125µm).
  • Please specify component holes ≤ 0.5mm with your order!
  • Component holes ≤ 0.6mm must be manufactured with a chemical surface, otherwise these holes will be filled with tin during the HAL process!