| Your PCB parameter |
Single layer |
Double layer |
4-layer |
| Core process difference |
Non‑plated holes |
Plated holes |
Inner layers + lamination |
| Regular base material |
FR‑4 |
FR‑4 |
FR‑4 (core + PP) |
| Regular thickness |
1.6mm |
1.6mm |
1.6mm |
| Regular copper thickness |
1oz |
1oz |
1oz (inner/outer) |
| Regular line width/space |
≥0.3mm |
≥0.15mm |
≥0.1mm |
| Regular min. hole diameter |
0.8‑1.0mm |
0.3mm |
0.25mm |
| Mainstream surface finish |
HASL / OSP |
HASL / ENIG |
HASL / ENIG |
| Solder mask color |
Green |
Green |
Green |
♩
Purchasing object
non‑PCB engineers · we take care of everything
♪
Pricing mode
quantity + area combination · best price automatically
♫
Prototype panelization
pure prototypes enjoy panel production
♬
File storage
re‑order with discount · worry‑free archive
♫ Lead time: standard / expedite · choose most economical ♫ Logistics: Express / Post · always cost‑efficient
𝄞 You only send one PO — we deliver PCB to your door. ♬ purchasing doesn’t have to be an engineer · free your engineers
♩ New customer · SMIERY advantage
Purchase one SMIERY online, enjoy 10% off all orders for one year.
Example: buy a SMIERY on Jan 1, 2026 → 10% discount on every order in 2026.
♫ File storage & reorder discount always applied
10%
off · full year
one PO · full service
♩ upload Gerber · instant quote ♪ request PO template
♬ first SMIERY = 1 year 10%
specs · one PO · 10% smiery
