PCB & PCBA Frequently Asked Questions
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Rogers PCB
What files are needed to quote a microwave PCB with controlled impedance?
Gerber/ODB++, target impedance list, stack-up intent (or constraints), coupon requirements, and any critical RF routing notes.
Do you support “thin copper” or local copper optimization for sharper RF corners?
It can be supported when the design requires it; local thin-copper processing may improve corner accuracy versus full-board copper tolerance control.
Do you have real RF performance validation data?
Yes. The microwave filter bandwidth target is 5.7–7.0GHz; measured test is 5.86–7.19GHz, matching within <5% deviation.
What impedance tolerance can you support for this build?
This design targets ±5% impedance tolerance with verification and process locking for consistency.
Why use resin-filled vias on high-frequency microwave boards?
Resin-filled vias improve surface planarity and reduce solder wicking/void-related risk, supporting reliable RF assembly.
How does BGA pad optimization improve SMT yield on RF modules?
Standardized pad sizing prevents “mixed pad sizes,” improving coplanarity and placement stability for high-density BGA assemblies.
What does “±0.5mil line tolerance” mean for microwave PCBs?
It means the critical RF trace width is controlled within ±0.0127mm, reducing impedance drift caused by etching variation.
Can impedance or copper thickness be customized?
Yes. Impedance targets, copper thickness distribution, and slot dimensions can be customized based on application requirements.
What reliability level does this PCB meet?
The PCB meets IPC-6012B Class III requirements, suitable for military and industrial environments.
How is impedance verified before shipment?
100% electrical testing is performed, with impedance verification applied to all controlled-impedance structures.
Does this design use HDI microvias?
No. This is a traditional multilayer high-frequency PCB using through-hole architecture for higher mechanical robustness and yield stability.
What is controlled depth slot technology used for?
It enables precise structural integration for industrial automation, with slot depth accuracy controlled within ±0.05 mm.
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