If you’re working with a UK PCB manufacturer, getting your boards into production quickly and smoothly depends on more than just sending in your files — it depends on sending the right files, with complete and clear information.
At Tate Circuits, a leading UK PCB supplier, we often see delays caused not by the complexity of a board, but by missing or unclear data. Our engineering team processes thousands of orders each year, and one thing has become clear: the most common cause of PCB production delay is incomplete or ambiguous Gerber files.
In this post, we’ll show you exactly what to send, how to avoid unnecessary engineering queries (EQs), and how to keep your project on track — all while showing you what sets UK PCB manufacturers like Tate Circuits apart from overseas-only options.
What Causes PCB Production Delays?
Let’s start with the basics. When you send a quote or order to a PCB manufacturer UK, your data is immediately reviewed by engineers. If anything is unclear, an Engineering Query (EQ) is raised — and production won’t start until it’s resolved.
Here are the most common reasons EQs are raised:
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❌ Missing drill files
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❌ No board outline or unclear routing paths
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❌ Ambiguous layer definitions
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❌ No indication of copper weight or board thickness
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❌ Conflicting finish types (e.g. ENIG vs HASL)
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❌ Unclear material requirements or UL marking preferences
As a UK circuit board supplier with engineering-led service, we work hard to resolve these quickly — but any delay in confirmation means your production start date gets pushed back, delaying delivery.
PCB Design Tips to Avoid Manufacturing Delays
If you’re working with a PCB supplier UK, these quick tips can help keep your board on track:
✅ 1. Double-check your Gerber file set
Make sure your ZIP includes:
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All copper layers (e.g. top, bottom, internal if multilayer)
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Soldermask and silkscreen layers
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A clear mechanical layer with the board outline
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Drill files (Excellon format)
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Readme or fabrication notes (if applicable)
🔍 If in doubt, send your file set here for a free check with a trusted UK PCB manufacturer like Tate Circuits.
✅ 2. Clearly specify your stack-up
For multilayer boards, always include a visual or table showing:
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Layer names and order
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Thicknesses of each layer
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Material (e.g. FR4, TG values)
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Controlled impedance requirements
As a PCB manufacturer UK, we can match specific stack-up requests — but we need clear guidance upfront to do so without delay.
✅ 3. Include copper weight and surface finish details
Tell your PCB supplier if your design requires:
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1oz, 2oz, or higher copper weights
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ENIG (Electroless Nickel Immersion Gold), HASL, OSP, or other finishes
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Any plating or via fill requirements
This data affects pricing, lead time, and panel layout — critical info for your UK PCB manufacturing partner.
✅ 4. Don’t resend files for repeat orders (unless they’ve changed)
If you’re placing a repeat PCB order, just include the part number or job reference from your last order. Resending files could be interpreted as a new job with potential changes, which would:
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Trigger a fresh quote
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Launch a new engineering review
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Change panel layout
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Delay your delivery
That’s why, as a trusted UK PCB supplier, we recommend simply referencing the job number — we’ll match your previous spec exactly.
Why Choose a UK PCB Manufacturer?
There are plenty of PCB suppliers in the global market, but here’s why working with a UK PCB manufacturer like Tate Circuits gives you an edge:
📦 All-in Pricing (Delivered to Your Door)
We offer fully inclusive pricing — meaning no hidden charges, no customs admin, and no surprises. We handle all paperwork between our Shenzhen factory and your UK delivery address.
📞 Local Support with Global Production
With a UK-based support team and offshore manufacturing scale, we offer the best of both worlds: UK PCB supplier service with China factory efficiency.
📊 Engineering-led Service
We don’t just process orders. Our team reviews every job with a critical eye, spotting issues before they become delays — that’s why engineers across the UK trust us as their circuit board supplier.
Conclusion: Avoiding Delays with the Right Data
Whether you’re sending a prototype or a full production run, following these steps will help you avoid delays and keep your project moving.
And if you’re working with a UK PCB manufacturer like Tate Circuits, we’re here to support you at every step — from checking your files, to panel optimisation, to fast quoting.
📩 Want a fast, accurate quote?
Send us your Gerber files or part number here today:
📧 sales@tatecircuits.com
🔁 Thinking of switching PCB suppliers?
Already ordering repeat boards from another supplier? We’ll quote the same design — no obligation — and you might be surprised how much we can save you.
Get an instant PCB quote on our easy to use gerber upload form here.