Doosan Electro Materials BG

1
Heavy Copper Clad Laminate by Doosan
2003 Doosan HCCL circuit boards (100µm lt HCCL
400µm)
1950 Direct Wire Wires crimped terminals.
1980 Metal Fret Stamped metal pieces.
1995 PCB Circuit boards and bus- bars.

• Strengths
• Least expensive

• Strengths
• Low cost if high volumes.
• Can manage higher density circuits

• Strengths
• Low cost
• High density of circuits
• Lighter than metal fret
• Integration of electronics

• Strengths
• Cost competitive with metal fret
• High density of circuits
• Excellent as heat sink
• Lighter than metal fret
• Integration of electronics
• Operates much cooler
• Fast turnaround time when design changes occur
• Highest reliability
• Possible to predict thermal distribution
• Best used when current demands are high
• Not sensitive to thermal shock
• Small dimensional changes in copper traces result
  in negligible heat changes.

• Weaknesses
• Least reliable
• Many quality problems in manufacturing and
  assembly
• Massive safety recalls possible
• Characterized by intermittent opens
• Modern vehicles cannot tolerate large area
  required to implement

• Weaknesses
• Lower reliability than PCB
• Expensive to change design
• Long time to make first parts from tools
• Complex mold and stamping tools required
• Labor intensive Assembly
• Very heavy

• Weaknesses
• Sensitive to Thermal shock

• Weaknesses
• Requires higher level of automation in
  manufacturing

Al Base Cu Clad Laminate (DST-5000)

• Features
• High heat dissipation
• High thermal durability
• Good circuit Integration
• Good mechanical strength

Structure

• Applications
• Inverter, Converter
• PDP, LED, Regulator for TV
• Ignitor, ECU, Voltage regulator
• Rectifier, Power supply

Cu layer
Thermally Conductive Dielectric layer
Al layer 1050, 5052 6061
18400um
(75200um)
(1.03.0mm)
DST-5000
Doosan Electro Materials BG