HOTOPRINT Leiterplatten

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Technical data

The key manufacturing limits and design rules at a glance, for single-sided, double-sided, multilayer, flex and rigid-flex PCBs. Limit values do not all apply in every combination at the same time. For demanding designs, we are happy to check your data in advance.

Datasheet as PDF (German) As of November 2026

Conductor pattern

 Outer layersInner layers
Min. track width 0.08 mm 0.08 mm
Min. track spacing 0.08 mm 0.08 mm
Min. pad diameter 0.35 mm 0.35 mm
Min. SMD pad 0.2 mm
Min. component spacing 0.37 mm
Dimensioned top view of a conductor pattern: track width and track spacing min. 0.08 mm, pad diameter min. 0.35 mm, finished hole diameter of the plated through-hole min. 0.1 mm

Holes and vias

Aspect ratio (hole depth to min. Ø) 12 : 1
Min. finished hole diameter (PTH) 0.1 mm
Mechanically drilled microvias 0.1 – 0.2 mm
Blind via – min. finished diameter 0.2 mm
Blind via – min. pad diameter outer / inner 0.35 mm
Blind via – aspect ratio 1 : 1
Copper in the hole wall > 25 µm
Cross-section of a multilayer PCB with blind via (aspect ratio 1 : 1) and plated through-hole (aspect ratio 12 : 1), copper in the hole wall over 25 µm

Sizes and thicknesses

Layer count up to 12 layers
Max. size double-sided 490 × 580 mm
Max. size multilayer 405 × 525 mm
Final PCB thickness 0.1 – 3.5 mm
Min. layer spacing 0.05 mm
Standard final copper 35 / 70 µm
Copper thickness 9 – 235 µm
Maximum PCB size compared: double-sided 490 × 580 mm, multilayer 405 × 525 mm

Milling and tolerances

Min. inner radius 0.25 mm
Milling tolerance ± 0.10 mm
V-scoring – min. material thickness 0.5 mm
Tolerance PTH diameter +0.10 / –0.05 mm
Tolerance hole position ± 0.05 mm
Tolerance base material thickness ± 10 %
Schematic milling contour: inner radius min. 0.25 mm, milling tolerance ± 0.10 mm

Solder mask and printing

Solder mask – min. clearance 0.05 mm
Peelable mask – min. overlap 0.3 mm
Peelable mask – min. clearance 0.6 mm

Solder mask – colours

  • Green
  • Red
  • White
  • Black
  • Blue

Special printing

  • Peelable mask, RoHS-compliant
  • Carbon printing

All solder masks and inks we use are supplied by Lackwerke Peters.

Surface finishes

  • HAL / lead-free HAL
  • Electroless nickel immersion palladium immersion gold (ENIPIG)
  • Electroless nickel immersion gold (ENIG)
  • Electroplated nickel-gold
  • Gold-plated edge connectors
  • Immersion tin
  • OSP

Materials and certificates

Base materials

  • All FR4*
  • Polyimide**
  • Rogers®**
  • Aluminium, copper-clad**

* For UL-marked PCBs, FR4 base materials and solder masks are restricted
** Without UL marking

Certifications

  • DIN EN ISO 9001:2015
  • UL certification (US and C) for ZPVM2 and ZPVM8, E-File E119015
  • ZPVM8 is recognised by CSA

You can find our certificates in the download area.

Is your design at the limit of what is feasible?

Send us your data – we will check feasibility in advance.