Coating Materials for Electronic Applications

1st Edition

Polymers, Processing, Reliability, Testing

Print ISBN: 9780815514923
eBook ISBN: 9780815516477
Imprint: William Andrew
Published Date: 11th June 2003
Page Count: 545
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This first book in the Materials and Processes for Electronics Applications series answers questions vital to the successful design and manufacturing of electronic components, modules, and systems such as:
- How can one protect electronic assemblies from prolonged high humidity, high temperatures, salt spray or other terrestrial and space environments?
- What coating types can be used to protect microelectronics in military, space, automotive, or medical environments?
- How can the chemistry of polymers be correlated to desirable physical and electrical properties?
- How can a design engineer avoid subsequent potential failures due to corrosion, metal migration, electrical degradation, outgassing?
- What are the best processes that manufacturing can use to mask, clean, prepare the surface, dispense the coating, and cure the coating?
- What quality assurance and in-process tests can be used to assure reliability?
- What government or industry specifications are available?
- How can organic coatings be selected to meet OSHA, EPA, and other regulations?

Besides a discussion of the traditional roles of coatings for moisture and environmental protection of printed circuit assemblies, this book covers dielectric coatings that provide electrical functions such as the low-dielectric-constant dielectrics used to fabricate multilayer interconnect substrates and high-frequency, high-speed circuits.

Materials engineers and chemists will benefit greatly from a chapter on the chemistry and properties of the main types of polymer coatings including: Epoxies, Polyimides, Silicones, Polyurethanes, Parylene, Benzocyclobenzene and many others.

For manufacturing personnel, there is an entire chapter of over a dozen processes for masking, cleaning

Table of Contents

  1. Functions and Requirements of Coatings for Electronic Applications 1.1 Functions and Requirements 1.2 Environmental Protection Functions 1.3 Special Metal Protection 1.4 Electrical Functions 1.5 Thermal Functions
  2. Chemistry and Properties of Polymer Coatings 2.1 Acrylics 2.2 Polyesters 2.3 Polyvinyls 2.4 Polystyrenes 2.5 Diallylphthalate and Other Allylic Polymers 2.6 Epoxies 2.7 Polyurethanes 2.8 Silicones 2.9 Polyimides 2.10 P-Polyxylylenes 2.11 Benzocyclobutene, Cyclotene 2.12 Fluorocarbons and Fluorinated Polymers 2.13 Polysulfones 2.14 Polyaryletheretherketone (PEEK) 2.15 Polyamides 2.16 Phenolics 2.17 Polysulfides
  3. Manufacturing Technology 3.1 Masking 3.2 Cleaning 3.3 Surface Preparation 3.4 Coating Preparation 3.5 Application Methods 3.6 Curing and Polymerization Processes 3.7 Manufacturing Issues
  4. Applications 4.1 Conformal Coatings for Printed Wiring Assemblies (PWA) 4.2 Coatings for Semiconductor Single Chip and Multichip Modules 4.3 Coatings for Discrete Passive Devices 4.4 Multilayer Circuit Board Fabrication 4.5 Interlayer Dielectric Coatings for Multichip Module Substrates 4.6 Polymer Waveguides 4.7 Solder Maskants 4.8 Chip-Scale and Ball Grid Array Packages 4.9 Chip-on-Board and Glob-Top Coatings 4.10 Particle Immobilizing Coatings and Particle Getters 4.11 Reinforcement of Interconnections 4.12 Wire


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© William Andrew 2003
William Andrew
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"There are not many books available on coatings for electronic assemblies ...each of the sections did explain the coating process in detail and the benefits of each system." - Bob Willis, Process Engineering Consultant Electronic Presentation Services