Printed circuit boards 2018-06-22T10:49:27+00:00

We are your supplier for printed circuit boards

Due to our many years of experience, we also meet the highest quality standards and this at market prices. Ask for your offer and let us convince you of our balanced price-performance ratio and best quality.

We supply printed circuit boards with the following specifications:

PCB types

  • one-sided
  • through-contacted on two sides
  • Multilayer with unlimited number of layers, with and without impedance control
  • flexible and rigid-flexible printed circuit boards
  • Heat sink circuit boards (aluminum and copper core)
  • Fine and ultrafine conductor circuits
  • special arrangements

Base material

  • FR4
  • FR4 halogen-free
  • Teflon
  • polyimide
  • Kapton
  • Berquist
  • aluminum
  • copper
  • and other special materials

Maximum dimensions

  • 800 x 600 mm (also multilayer)
  • Standard production benefit depending on order

Thicknesses

  • Standard 1.6 mm
  • Variations from 50 μm to 6 mm possible
  • Multilayer from 250 μm
  • Flexible printed circuit boards from 50 μm
  • Custom made possible

Copper edition

  • 5 to 240 μm

Smallest drill diameter

  • 75 μm laser drilled
  • 0.15 mm conventionally drilled

Smallest trace width and spacing

  • 50 μm, series 75 μm

Surfaces

  • hot tinned (HAL), also lead free
  • chemically nickel-gold
  • galvanic nickel-gold
  • chemically tin
  • chemically silver
  • organic surfaces (OSP)

Stocking pressure, stripping paint, carbon print

  • screen printing
  • Colors: white, yellow, red, black, blue

Solder resist

  • Curtain casting process
  • Probimer 65, Peters 2467 and others

Press-fit technology and plugging technology

  • possible

Buried and Blind Vias

  • At least 75 μm laser drilled
  • 0.1 mm conventionally drilled

Mechanics

  • Milling, scoring or punching
  • depth milling
  • countersinks
  • also round contours when scratching possible
  • Laser drilling and cutting

Electrical test

  • one-sided or two-sided
  • Flying Probe and Adapter Tester
  • from Gerber data or Golden Board
  • Impedance measurement with protocol

Keltronik GmbH

Gewerbestr. 9
D-86836 Graben

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