Capabilities
Call Us Today 760-560-0530Precision Circuit Board Source · California
PCB Manufacturing Capabilities
Rigid printed circuit boards up to 14 layers as standard or 32 layers as advanced, with 0.5–4 oz copper as standard and 0.33–15 oz for advanced builds, built to IPC-6012 Class 2 or Class 3 and 100% netlist tested, with a free DFM check on every order. All boards are manufactured in one of our 2 China based factories with California based technical support and accountability on Pacific time. Values are finished dimensions. Standard is our everyday process window; Advanced is available on request and may affect price and lead time.
- Layers
- 14 standard · 32 advanced
- Trace / space
- 4 mil · 3 mil adv.
- Smallest hole
- 8 mil · 6 mil adv.
- Copper
- 0.5–4 oz · 0.33–15 oz adv.
- Thickness
- 0.4–3.9 mm (0.0157–0.1535 in) standard
0.4–10 mm (0.0157–0.3937 in) advanced - Aspect ratio
- 8:1 · 12:1 adv.
- Lead time
- 7–10 working days
- Quick-turn
- 2L 4–5 · 4L 5–7 days
Capabilities updated · Questions: 760-560-0530 · info@precisionpcbs.com
ISO 9001 · IATF 16949 · ISO 13485 · ISO 14001 · UL · IPC-6012 Class 3 · RoHS · REACH · 100% netlist tested
Inch equivalents are rounded conversions of the listed millimetre values. Existing mil figures are nominal reference values.
Capability tables
General
| Item | Standard | Advanced |
|---|---|---|
| Layer count | Up to 14 layers | Up to 32 layers |
| Finished board thickness | 0.4–3.9 mm (0.0157–0.1535 in; 16–154 mil) | 0.4–10 mm (0.0157–0.3937 in; 16–394 mil) |
| Minimum core thickness | 0.15 mm (0.0059 in; 6 mil) | 0.05 mm (0.00197 in; 2 mil) |
| Copper weight (finished) | 0.5–4 oz | 0.33–15 oz |
| Plated hole wall copper, minimum | 20 µm (0.8 mil) | 25 µm (1.0 mil) |
| Maximum panel size | 600 × 660 mm (23.6220 × 25.9843 in) | 600 × 660 mm (23.6220 × 25.9843 in) |
| Base materials | FR-4; aluminum-backed | High-Tg FR-4 (Shengyi TG170, ITEQ IT-180), PTFE (Teflon), Rogers, flexible (FPC) |
Conductors and spacing
| Item | Standard | Advanced |
|---|---|---|
| Minimum trace width | 0.10 mm (0.0039 in; 4 mil) | 0.076 mm (0.00299 in; 3 mil) |
| Minimum trace spacing | 0.10 mm (0.0039 in; 4 mil) | 0.076 mm (0.00299 in; 3 mil) |
| Conductor width tolerance | ±20% of artwork | ±1 mil (0.025 mm (0.00098 in)) of artwork |
| Conductor to board outline, minimum | 0.15 mm (0.0059 in; 6 mil) | 0.13 mm (0.0051 in; 5 mil) |
| Solder mask web (dam), minimum | 0.13 mm (0.0051 in; 5 mil) | 0.10 mm (0.0039 in; 4 mil) |
Drilling and holes
| Item | Standard | Advanced |
|---|---|---|
| Minimum drilled / plated hole | 0.20 mm (0.0079 in; 8 mil) | 0.15 mm (0.0059 in; 6 mil) |
| Aspect ratio (board thickness : hole), maximum | 8 : 1 | 12 : 1 |
| Hole edge to hole edge, holes 0.30–1.60 mm (0.0118–0.0630 in) | 0.30 mm (0.0118 in; 12 mil) | 0.20 mm (0.0079 in; 8 mil) |
| Hole edge to hole edge, holes 1.61–6.50 mm (0.0634–0.2559 in) | 0.35 mm (0.0138 in; 14 mil) | 0.25 mm (0.0098 in; 10 mil) |
| PTH edge to copper pattern, minimum | 0.25 mm (0.0098 in; 10 mil) | 0.20 mm (0.0079 in; 8 mil) |
| NPTH edge to copper pattern, minimum | 0.20 mm (0.0079 in; 8 mil) | 0.15 mm (0.0059 in; 6 mil) |
| Hole position tolerance | 0.075 mm (0.00295 in; 3 mil) | 0.05 mm (0.00197 in; 2 mil) |
| PTH diameter tolerance | ±0.075 mm (±0.00295 in; 3 mil) | ±0.05 mm (±0.00197 in; 2 mil) |
| NPTH diameter tolerance | ±0.05 mm (±0.00197 in; 2 mil) | ±0.05 mm (±0.00197 in; 2 mil) |
| Blind vias | — | 0.10–0.15 mm (0.0039–0.0059 in; 4–6 mil) |
Multilayer
| Item | Standard | Advanced |
|---|---|---|
| Layer-to-layer registration, 4 layers | 0.15 mm (0.0059 in; 6 mil) max | 0.10 mm (0.0039 in; 4 mil) max |
| Layer-to-layer registration, 6 layers | 0.20 mm (0.0079 in; 8 mil) max | 0.13 mm (0.0051 in; 5 mil) max |
| Layer-to-layer registration, 8 layers | 0.25 mm (0.0098 in; 10 mil) max | 0.15 mm (0.0059 in; 6 mil) max |
| Hole edge to inner-layer copper, minimum | 0.225 mm (0.0089 in; 9 mil) | 0.15 mm (0.0059 in; 6 mil) |
| Board outline to inner-layer copper, minimum | 0.38 mm (0.0150 in; 15 mil) | 0.225 mm (0.0089 in; 9 mil) |
| Minimum board thickness, 4 layers | 0.50 mm (0.0197 in; 20 mil) | 0.50 mm (0.0197 in; 20 mil) |
| Minimum board thickness, 6 layers | 0.70 mm (0.0276 in; 28 mil) | 0.70 mm (0.0276 in; 28 mil) |
| Minimum board thickness, 8 layers | 0.90 mm (0.0354 in; 35 mil) | 0.90 mm (0.0354 in; 35 mil) |
Tolerances
| Item | Standard | Advanced |
|---|---|---|
| Board thickness tolerance, boards ≥ 1.0 mm (0.0394 in) | ±10% | ±10% |
| Board thickness tolerance, boards < 1.0 mm (0.0394 in) | ±0.10 mm (±0.0039 in; 4 mil) | ±0.10 mm (±0.0039 in; 4 mil) |
| Outline dimension tolerance | ±0.15 mm (±0.0059 in; 6 mil) | ±0.10 mm (±0.0039 in; 4 mil) |
| Warp and twist, maximum | 0.75% | 0.50% |
V-scoring
| Item | Standard | Advanced |
|---|---|---|
| Minimum board thickness for V-score | 0.50 mm (0.0197 in; 20 mil) | 0.50 mm (0.0197 in; 20 mil) |
| Remaining web | 1/3 of board thickness | 1/3 of board thickness |
| V-score position tolerance | ±0.13 mm (±0.0051 in; 5 mil) | ±0.10 mm (±0.0039 in; 4 mil) |
| Groove width, maximum | 0.50 mm (0.0197 in; 20 mil) | 0.38 mm (0.0150 in; 15 mil) |
| Groove to groove, minimum | 3 mm (0.1181 in; 118 mil) | 2 mm (0.0787 in; 79 mil) |
| Groove to copper, minimum | 0.45 mm (0.0177 in; 18 mil) | 0.38 mm (0.0150 in; 15 mil) |
Slots
| Item | Standard | Advanced |
|---|---|---|
| Plated slot, minimum width | 0.40 mm (0.0157 in; 16 mil) | 0.40 mm (0.0157 in; 16 mil) |
| Non-plated slot, minimum width | 0.50 mm (0.0197 in; 20 mil) | 0.50 mm (0.0197 in; 20 mil) |
| Plated slot length/width tolerance | ±0.15 mm (±0.0059 in; 6 mil) | ±0.10 mm (±0.0039 in; 4 mil) |
| Non-plated slot length/width tolerance | ±0.10 mm (±0.0039 in; 4 mil) | ±0.10 mm (±0.0039 in; 4 mil) |
Solder mask and electrical
| Item | Standard | Advanced |
|---|---|---|
| Solder mask colors | Green, matte green, black, matte black, white, yellow, blue, red, purple, clear | Same as Standard |
| Impedance control | 50 Ω ±10% typical | 50 Ω ±10% typical |
| Electrical test voltage | 250 V | 250 V |
| Continuity (open) threshold | < 50 Ω (typical 25 Ω) | < 50 Ω (typical 25 Ω) |
| Isolation (short) resistance | 10 kΩ–20 MΩ (typical 5 MΩ) | 10 kΩ–20 MΩ (typical 5 MΩ) |
Surface finishes
| Finish | Standard | Advanced |
|---|---|---|
| Lead-free HASL | 1 µm minimum | 1 µm minimum |
| OSP | 0.2–0.5 µm | 0.2–0.5 µm |
| Immersion silver | 0.2–0.4 µm | 0.2–0.4 µm |
| Immersion tin | 0.8–1.2 µm | 0.8–1.2 µm |
| ENIG (immersion gold) | Au 1–3 µin | Au 1–5 µin |
| Hard gold, including gold edge-connector fingers | Au 5–50 µin | Au 5–50 µin |
| ENEPIG (Ni/Pd/Au) | Not offered | Not offered |
Frequently asked questions
What PCB manufacturing capabilities does Precision PCBS offer?
Precision Circuit Board Source (Precision PCBS) builds rigid printed circuit boards up to 14 layers as standard and 32 layers as advanced. Finished board thickness is 0.4–3.9 mm (0.0157–0.1535 in) standard and 0.4–10 mm (0.0157–0.3937 in) advanced. Finished copper weights are 0.5–4 oz standard and 0.33–15 oz advanced. Standard minimum trace and space is 4 mil (0.10 mm (0.0039 in)), and advanced builds go down to 3 mil (0.076 mm (0.00299 in)). Materials include FR-4, high-Tg FR-4 (Tg 170 °C), Rogers, PTFE, aluminum-backed and flexible laminates.
What is the minimum trace width and spacing?
4 mil (0.10 mm (0.0039 in)) trace and space on standard builds, and 3 mil (0.076 mm (0.00299 in)) on advanced builds. Heavy copper needs wider features; send your Gerbers for a free DFM check and we will confirm the limits for your copper weight.
What is the smallest hole you can drill?
8 mil (0.20 mm (0.0079 in)) finished hole on standard builds and 6 mil (0.15 mm (0.0059 in)) on advanced builds, with an aspect ratio up to 8:1 standard and 12:1 advanced. Blind vias of 0.10–0.15 mm (0.0039–0.0059 in) are available on advanced builds.
How many layers can you build?
Up to 14 layers as standard and 32 layers as advanced. Minimum finished thickness is 0.50 mm (0.0197 in) for 4-layer boards, 0.70 mm (0.0276 in) for 6-layer and 0.90 mm (0.0354 in) for 8-layer. Layer-to-layer registration is 0.15 mm (0.0059 in; 6 mil) standard and 0.10 mm (0.0039 in; 4 mil) advanced on 4-layer boards.
Do you build heavy copper boards?
Yes. Finished copper weights from 0.5 oz to 4 oz are standard, and 0.33–15 oz is available for advanced builds.
Which surface finishes are available?
Lead-free HASL, OSP, immersion silver, immersion tin, ENIG (immersion gold) and hard gold (including gold edge-connector fingers). ENIG gold is 1–3 µin standard and 1–5 µin advanced; hard gold is 5–50 µin. Selective gold and ENEPIG (Ni/Pd/Au) are not offered.
Can you use high-Tg, Rogers or PTFE materials?
Yes, as advanced builds. We use high-Tg FR-4 such as Shengyi TG170 and ITEQ IT-180 (Tg 170 °C or higher), Rogers and PTFE (Teflon) laminates, and flexible (FPC) materials. Standard builds use FR-4 and aluminum-backed laminates.
What board thickness tolerance can you hold?
±10% for boards 1.0 mm (0.0394 in) and thicker, and ±0.10 mm (±0.0039 in) for boards under 1.0 mm (0.0394 in). Outline tolerance is ±0.15 mm (±0.0059 in) standard and ±0.10 mm (±0.0039 in) advanced. Warp and twist is held to 0.75% standard and 0.50% advanced.
Do you build to IPC-6012 Class 3?
Yes. We build to IPC-6012 Class 3 as well as Class 2. Every bare board is 100% netlist tested, and a test report is available on request.
Do you offer impedance control?
Yes. Typical impedance tolerance is 50 Ω ±10%. Send your stackup and impedance targets with your files and we will confirm the build.
Are boards electrically tested?
Yes. Every PCB is 100% netlist tested, and boards for assembly are 100% netlist tested before assembly. Testing runs at 250 V with a continuity threshold under 50 Ω and isolation resistance of 10 kΩ to 20 MΩ. A test report is available on request.
What are your V-score and panel rules?
Boards must be at least 0.50 mm (0.0197 in) thick to V-score. The remaining web is one third of the board thickness, grooves must be at least 3 mm (0.1181 in) apart (2 mm (0.0787 in) advanced), and copper must be at least 0.45 mm (0.0177 in) from the groove (0.38 mm (0.0150 in) advanced). Maximum panel size is 600 × 660 mm (23.6220 × 25.9843 in).
Do you check my files before production?
Yes. We offer a free first-level DFM check of your Gerber files for errors and potential manufacturing issues before your order goes into production. Our internal process double checks the production floor's working gerbers and approves or corrects.
Where are the boards made?
Precision PCBS is a U.S.-owned company based in California. All boards are manufactured in one of our 2 China based factories with California based technical support and accountability on Pacific time.
Do you offer PCB assembly?
Yes. We provide turnkey surface-mount (SMD) and through-hole assembly, sourcing the components ourselves. We accept consigned parts for a few hard-to-find components. Bare boards are 100% netlist tested before assembly. Typical assembly lead time is 4 weeks.
What are your lead times?
Standard PCB lead time is 7–10 working days. Quick-turn is available: 4–5 working days for 2-layer boards and 5–7 working days for 4-layer boards. Assemblies typically take 4 weeks.
Can you plate gold edge-connector fingers?
Yes. We plate hard gold on edge-connector fingers, 5–50 µin.
How fast can you build a quick-turn PCB?
2-layer boards in 4–5 working days and 4-layer boards in 5–7 working days. Contact us with your files for quick-turn on other builds.
What files do I need to send for a quote?
For bare boards: Gerber files or ODB++, plus your drill file and fab drawing (material, thickness, finish, quantity). For assembly, also send a bill of materials (BOM) and a pick-and-place (centroid) file. Don't forget to provide Fab instructions. A downloadable Fab instruction form is available on our web site.
How do I get a quote or check order status?
Email info@precisionpcbs.com, call 760-560-0530 or use the Quote Now form on this site. Existing customers can sign in to the customer portal to see work in progress and order status notices. Precision PCBS products are also available through Digi-Key.
What certifications do you hold?
Our manufacturing is certified to ISO 9001, IATF 16949 (automotive), ISO 13485 (medical devices) and ISO 14001 (environmental), and boards carry UL recognition. Boards are RoHS compliant when the design is RoHS compliant, and our materials are REACH compliant.
Are you ITAR registered?
No. Our boards are manufactured in China, so we cannot take ITAR-controlled work.