The engineer who finds what the last one missed.
Send your board before it goes to fab. Start with a free quick check, or book the full production-ready review of schematic, layout, and BOM. Either way you get a written list of exactly what would have cost you a respin.
Two ways to get your board reviewed
Not sure which you need? Start with the free quick check. We will tell you if the board needs the full review.
Free quick check
Free · Notes in 2 business days
For the “is it ready to order?” moment. A checklist pass on the faults that kill boards most often.
- Footprints and pin 1 against the datasheet for the main ICs and connectors
- Ground return paths and plane splits under fast signals
- Decoupling capacitor placement
- Antenna keepout for Wi-Fi, BLE and LoRa modules
- ESD and protection parts at the connectors
- DRC against your fab house's published rules
You get short written notes on what to fix before you order. No call, no obligation.
Production-ready review
Fixed quote per board · Report in 3–5 business days
For boards heading to production, certification or a contract manufacturer. Schematic, layout and BOM, end to end.
- Full schematic check: power stage maths, absolute maximum ratings, boot and protocol pins
- Layout, signal integrity and EMC risk review
- DFM against the fab and assembler you will actually use
- BOM lifecycle, availability and part-number suffix check
- Severity-ranked report with a datasheet reference on every finding
- 30-minute walkthrough call
Quoted before any work starts. If we find nothing Critical or Major, you pay nothing.
A respin does not cost you a board. It costs you a quarter.
You already know the mechanics. A fault gets caught after fab, or after assembly, or — worse — after the board is in a customer's hands. Now you are paying for a new fab run, a new stencil, a new assembly pass, and weeks back on a schedule you had already committed to someone else.
That is the good outcome. The bad one is a board that boots, looks fine on the bench, and fails somewhere you cannot get to it — because the fault was never a rendering error. It was a resistor value calculated for the wrong switching frequency, a pin rated past its absolute maximum under normal operation, a signal channel wired backward. Nothing on a visual inspection catches any of that.
A review costs a fraction of a respin and takes days, not weeks. The maths only fails to work in your favour if the board really was clean — and you find that out too.
The production-ready review, end to end
Schematic, layout, and BOM together — not a layout glance.
A severity-ranked fault list
Every finding labelled Critical, Major, or Minor — so you know what blocks fab and what can wait.
A datasheet reference on every finding
Not "this looks off." The exact page, absolute maximum rating, or application note that proves it is a fault.
A 30-minute walkthrough call
Every item explained in context, so you leave knowing what to fix and why.
A fixed turnaround
3–5 business days. You know when you are getting an answer before you send the board.
How it works
- 1
Send your board
Schematic, layout files, and your BOM — as a link you control. No call required to start.
- 2
We review it against what it has to survive
Power stage maths, absolute maximum ratings on every active pin, protocol and boot-strapping configuration, part-number suffixes against what the schematic actually calls for, and the layout details datasheets bury in a footnote.
- 3
You get the written fault list
Severity-ranked and datasheet-referenced, within 3–5 business days.
- 4
We walk through it together
Thirty minutes on what each finding is, why it matters, and what it would have cost to find at fab instead.
Production-ready review: if we find nothing Critical or Major, you pay nothing.
Every review is delivered as a written, severity-ranked report. If it contains zero findings ranked Critical or Major — nothing that, left unaddressed, would plausibly have required a new board revision, reassembly, or re-tooling — you do not pay. You keep the report either way.
Findings ranked Minor — style, documentation, non-blocking suggestions — do not trigger payment.
The guarantee applies to boards submitted with complete design files. It does not apply to incomplete submissions, boards with undocumented custom parts, or work scoped beyond the single board agreed at intake.
What a review actually finds
Three faults. One board. One review.
A client sent a board they considered finished — ready for fab. A resistor pair setting the switching frequency on a TPS54360 regulator was miscalculated. An enable pin was exposed to voltage above its absolute maximum under completely normal input conditions. And a signal channel on an ISO7721 isolator was wired in the reverse direction — a fault that works on the bench and fails silently in the field.
Dead board. Healthy power.
A board would not boot. Every rail measured correctly, so the power supply was not the problem. The AM4379 processor was reading a boot-configuration pin combination matching no valid boot mode — a SYSBOOT strapping conflict. Found by tracing pin states against the boot-mode table, not by re-checking the rails a second time.
One suffix. One dead converter.
A buck converter kept failing. The schematic called for the AP63203WU-7 variant that regulates through an external feedback divider — the board was built with the fixed-output version of the same part. Same package, same footprint, different internal behaviour.
Written-up reviews and root-cause cases
The three things people ask
- “My board is probably fine.”
- The client in the first case above thought so too — the board was already considered finished. A review either confirms you are right, in writing, or tells you what to fix before fab does.
- “I already had it reviewed.”
- By whom, checking against what? A layout glance and a datasheet-referenced fault list are different products. This checks switching-frequency maths, absolute maximum ratings, boot and protocol pin configuration, and part-number suffixes against the schematic's actual intent.
- “How do I know you are any good?”
- IPC CID+ certified and 500+ PCB designs delivered since 2016. Or skip our claims and read a client's, below.
What clients say
Verbatim reviews from the engineers and founders whose boards we designed.
I talked to about 8 fiverr contractors for this gig, and most said something like “yes I can do that” with no real indication of understanding. Niloy offered to hop on a Zoom call — I was free, and we immediately reviewed my schematic and plans. In 4 days, Niloy delivered everything we discussed and more.
This was a highly complex hardware design project involving a custom radar frontend board for a security system. The scope required precise RF routing, power control, shielding, and signal conditioning. Niloy took the feedback seriously and delivered a fully functional revision that met 100% of our requirements. Serious engineer, strong delivery.
Niloy did an excellent job designing a custom MCP23S17 PCB for me. He is very professional, skilled, and easy to work with. The PCB design was perfect, and everything worked as expected. He communicated well throughout the project and delivered the work on time.
Send your board. Get the fault list.
Pick the free quick check or the production-ready review, then share your schematic, layout, and BOM. No call required to start.