RF and microwave boards live or die by impedance control and dimensional accuracy, putting the emphasis on imaging, etching precision and impedance testing.
Overview
This guide explains the role of rf and microwave pcb manufacturing in PCB manufacturing, the equipment involved, and how to specify it correctly. On low-loss laminates, conductor width and etch factor directly set characteristic impedance, so tight imaging and etching control plus impedance testing are essential.
Where It Fits in the Process
Precision is concentrated in imaging and etching, verified by impedance and dimensional measurement.
Equipment Categories Involved
Key Considerations
Material handling must avoid contamination of soft RF laminates; trapezoidal etch profiles shift impedance.
Standards and Compliance
Designs and processes in this area commonly reference:
- IPC-6012
- IPC-2141 (controlled impedance)
- IPC-TM-650
Selection and Comparison
Key trade-offs when specifying for rf and microwave pcb manufacturing:
- LDI vs. film for impedance control
- Fine-line vs. standard etching
- TDR impedance test vs. coupon measurement
Recommended Equipment from acfindustry.com
The following machines from our catalog support the processes discussed above:
2D Measurement Machine
- Model: ACF-QC-10
- Sub-process: Measurement Systems
- Automation: Semi-automatic
CCD Exposure Machine
- Model: ACF-IM-05
- Sub-process: Exposure Systems
- Automation: Automatic (PC/CNC controlled)
Film Punching Machine
- Model: ACF-IM-07
- Sub-process: Exposure Systems
- Automation: Semi-automatic
LDI Automatic Exposure Machine (Inline 1x2)
- Model: ACF-IM-04
- Sub-process: Exposure Systems
- Automation: Inline / automatic
Photoplotter (Film Production)
- Model: ACF-IM-06
- Sub-process: Exposure Systems
- Automation: Semi-automatic
4-Wire Electrical Test Machine
- Model: ACF-QC-07
- Sub-process: Electrical Testing
- Automation: Semi-automatic
Related Topics
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