Materials

We stock a large selection of High Tg FR4 (VT47,GA170) and Rogers 4000 series materials. Other materials are available on request. Please contact a member of our Technical Support Department who can advise you of the performance and availability of your chosen material.

Express are more than happy to stock any materials with extended lead-times as long as your requirements meet with your chosen materials shelf life and minimum order requirements.

FR4 Laminates Used

• Hi Tg Lead Free Compatible
• Medium Tg Lead Free Compatible
• Halogen Free

Specialist Laminates Available

• Rogers
• Taconic
• Polyimide
• Nelco

(Direct links to manufactures / suppliers are available from the links area)

Capabilities

• Max Brd Dimensions - 550 x 480mm
• Max Brd Thickness - 4.8mm
• Number of Layers - Max 32 layers
• Min Track: - 75  microns (³50 micron in controlled areas)
• Min Gap: - 75  microns (³50 micron in controlled areas)
• Smallest Mechanical Hole: - 0.15mm Drilled (PCB Thickness Dependant)
• Smallest Laser Hole: - 0.05mm Finished (Layer Separation Dependant)
• Aspect Ratios: - 8:1 Drilled as standard
• Hole to Copper - 0.15mm (Design dependant)
• Controlled Impedance - +/-10% Standard or +/-5% Advanced
• Copper Filled Vias - Flat Pad Technology
• Bonded Heatsink/Planes

Finishes

Finish Type	Thickness	Application Use
Electroless Ni/Au	3-5 Microns Ni 0.05 – 0.15 Microns Au	Lead Free Solder Alum Wire Bond Touch Pads
Immersion Silver	0.2-0.3 Microns	Lead Free Solder Alum Wire Bond Touch Pads
Electro-Plated Hard Gold	2.5-5 Microns Au	Edge Connector Contact
Electro-Plate Nickel & Hard Gold	3-5 Microns Ni < 1.5 Microns Au	Surface Friction Contact
Electroless Nickel/Pd/Au	3-5 Microns Ni 0.2-0.6 Microns Pd 0.02-0.1 Microns Au	Lead Free Solder Alum Wire Bond Gold Wire Bond
Lead Free HASL	5-15 Microns	Lead Free Soldering
Tin Lead HASL	5-15 Microns	Lead Based Solderingn Military, Aerospace
Electro-plate Nickel	up to 25 Microns	Hard Wear Contacts
OSP (Organic Preservative)	0.3 Microns	Soldering
Conductive Carbon Ink	Spec Type / Thk's TBA	Touch Pad Surface Contact

For a more comprehensive list of capabilities please contact a member of the Technical Support Department.

Key Manufacturing Equipment

CAM Dept:

• Softwires PCP 2000 ERP System
• 4 Frontline Incam Systems
• 4 Frontline Genesis 2000 CAM Systems
• 2 Barco UCAM Systems
• Orbotech LPI9008 Photo Plotter
• Polar Instruments SI8000 Impedance Calculator
• Polar Instruments SpeedStack Stack-up Calculator

Inspection & Test Dept:

• ATG BBT Machine: A2-16S Probe
• ATG BBT Machine A5-8 Probe
• ATG BBT Machine A5-L Probe
• Camtek AOI 868 WR Eye Q (38 micron T/Gap scan capability)
• Camtek AOI 804 WR
• Optima AOI
• Polar Instruments CITS 500 S4 Impedance Tester

Drill / Rout Dept:

• 2x Laser Drill: ESI 5200
• X-Ray Drill: Schmoll XRC 200,000RPM
• 1 x Schmoll LM Series 200,000RPM, 2 spindle with Autoload
• 1 x Schmoll MX Series 2000,000RPM, 2 spindle
• 1 x Klingenberg 3 Spindle Drilling Machine
• 1 x Schmoll LM Series 2 spindle router with Linear Z Technology
• 2 x Schmoll single spindle rout machines
• SEL Router
• Telmec CNC V- Scoring Mch
• Glenbrook Real Time X-Ray Drill Inspect Mch
• SV 100 Planner Machine

Laboratory Dept:

• CMI Xray Fluoresance (Surface Plating Thickness Measurement)
• CMI Caviderm (Hole Plating Thickness Measurement)
• Camspec U.V. / Visual Spectrophotometer
• Cemco Solderability Tester
• Cemco Peel and Pull Tester
• Cemco Change of Resistance Tester
• Olympus 1000X Microscope
• C.I.F. Bench IR Reflow

Press Room:

• Burkle MTV 100/4 3 Daylight Press
• CEDAL MCP 20 Monolam Press
• Piergiacomi AMM20 Weld Machine

Legend Print:

• Orbotech Sprint 8 Legend Printer