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I will debug pcb power signal integrity issues with a root cause report and fast clocks
Professional FPGA and PCB Hardware Engineer, Embedded Systems and Firmware
I am a professional FPGA and PCB design engineer with strong experience in delivering high performance, reliable, and production ready hardware solutions. I specialize in FPGA development, digital har...
About this Gig
Does your board reset, brown out, ring or work on the bench but fail in the field? Most of these faults come from the power delivery network, return paths and signal termination, and they can be diagnosed.
I debug existing PCBs for power and signal integrity problems and deliver a written root cause report with prioritized fixes.
What I check:
- Decoupling, regulator stability, ripple, sequencing and brown-out
- Ground return paths, plane splits and via transitions
- Impedance, reflections, crosstalk, stubs and termination
- Your scope captures and test results, if you have them
You receive:
- Annotated PDF report with severity ratings
- Fixes for rework and for the next revision
- Corrected schematic and layout (Premium)
Works with KiCad, Altium, EasyEDA, Gerber or PDF. Boards above 8 layers, DDR and PCIe are quoted after review. Fixes are not guaranteed without testing on your hardware.
Send your files, symptoms and any scope captures and I will confirm feasibility before you order.
FAQ
What problems can you diagnose?
Resets and brown outs, noisy rails and analog readings, ringing and reflections, crosstalk, flaky USB, Ethernet and SPI links, switching regulator noise and grounding problems.
What do you need from me?
Schematic and layout files (KiCad, Altium, EasyEDA, or Gerber and PDF), a description of the symptoms, supply and load details, and any scope captures or test notes. More evidence means a better diagnosis.
Can you guarantee you will find and fix the problem?
No. I find the most likely causes and give prioritized fixes. The cause may also be firmware, assembly or component quality, and I will say so if the evidence points there.
Do you run simulations?
I use first-order calculations and free tools, such as impedance, decoupling and PDN estimates. Full 3D electromagnetic or commercial board-level simulation is not included.
Which file formats and layer counts do you support?
KiCad, Altium, EasyEDA and Eagle files, or Gerber and PDF. Standard covers up to 4 layers. Premium covers up to 6 layers. Larger or DDR and PCIe boards are quoted.
Can you fix the board for me?
In Premium I provide corrected schematic and layout for the affected areas. Standard gives you a written fix plan.
Do you review boards I do not own?
No. I review boards you own or have the right to share. I do not reverse engineer or copy other companies' products.
