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thick film circuit

Why Use Microelectronics?. High Power. High Frequency. High Density

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thick film circuit

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    3. Thick Film Ink Systems Printing – Firing - Lasering Gold, Silver, High and low Temperature Copper. Resistor Printing directly in circuit. Aspect ratio to 0.1mm track and gap width, +/- 0.03mm registration. Automatic printing machines cassette to cassette process. Automatic Laser trimming and continuity testing. Clean-room facility operating on 3 shifts. Thick Film Circuit

    4. Substrates Thick film on 96% alumina or aluminium nitride Directly bonded copper (DBC) Active metal braise on aluminium nitride & silicon nitride High/Low temperature co-fired ceramic (HTCC/LTCC) Steel Aluminium Thin film FR4 Technologies

    5. Component Attach Solder Surface Mount Polymer Component and die attach Vacuum soldering (Power Die Attach) upto 400oC Wire Bonding Fine wire Au 17um to 33um Fine wire Al 25um to 33um Large diameter Al >125um Packaging Hermetic sealing Projection weld & Seam Seal Ceramic lidding Glob-top / Silicon conformal coat Technologies

    6. Clean-room assembly operations. Automated die bonding and wire bonding by pattern recognition. Re-flow soldering and real time x-ray for void detection. Aluminium fine wire bonding for high density signal and control circuits. Large diameter Aluminium wire bonding for power circuits. Hermetic sealing in inert atmosphere. Leak detection. Automatic test facilities. Microelectronics Assembly

    8. Characteristics High Temperature Co-fired Ceramic (HTCC) Chip and Wire (>1000 bonds) High Density – Reduced size and Weight Hermetically sealed Engine mounted Qualified –55oC to +150oC Extended high temperature approval testing –55oC to +205 oC. Completed 1000 hours +205oC Completed 100 cycles –55oC to 205 oC MCM Engine Management

    9. MCM (Linear) Engine Management – Civil Aviation

    10. DC/DC Converter – Civil Aviation

    11. Safety Critical Fuse

    12. Power MCM – Civil Aviation

    13. Sonar Transducer Power Driver – Naval Systems

    14. Flight Controls Steel Dynamic Braking Resistors For Aileron, Elevator and Rudder Actuation Increased power dissipation by the use of bottom and top heatsinking Low profile, Low Weight Design-ins on: Airbus A400M A330 MRTT Boeing 787 EBACS

    15. Power Resistor – Motor Speed Control

    16. AlN Heater – Toner Fusing

    17. Hi Frequency Telecommunications Function: Frequencies up to 38GHz Hi Reliability Direct feed to antenna Small Package size

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