PCB capability filter
For very high layer counts, ChinaPCB records the 20-plus layer capability per product series with its source and review date, and never combines a layer ceiling from one line with line-width or drill figures from another. Factories appear here only once that record has been checked.
This page describes the dimensions used to filter factories. Filter results are generated as combinations and are deliberately kept out of the index; a results URL is not an editorial page and should never compete with a board type or a factory profile.
| Layer count | Range for a named product series, with whether it is prototype or volume production. |
|---|---|
| Line width and spacing | Minimum for that series, not the company-wide best figure. |
| Drill and via | Mechanical versus laser drill, minimum hole size and aspect ratio. |
| Impedance | Target tolerance and the method used to verify it. |
| Copper weight | Inner and outer layer copper, stated separately. |
| Materials | Named laminate systems qualified for that series. |
| Subcontracting | Which steps are performed outside the factory. |
Why there is no live filter widget yet
Hard-verified factory records published so far: 0. Until enough factory records exist, a filter would either return nothing or return name-and-address entries. Browse the factory directory, the board types and the clusters instead, and read the capability comparison guide before building your own comparison table.