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Polymers, Processing, Reliability, Testing
To order this title, and for more information, click here
By
James J. Licari, AvanTeco, Whittier, CA, USA
Included in series
Materials and Processes for Electronic Applications,
Description
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, and surface
preparation and a comprehensive review of over 20 processes for the application and curing of coatings including recent extrusion, meniscus,
and curtain coating methods used in processing large panels. The pros and cons of each method are given to aid the engineer in selecting
the optimum method for his/her application. As a bonus, from his own experience, the author discusses some caveats that will help reduce
costs and avoid failures.
Finally, the author discusses regulations of OSHA, EPA, and other government agencies which have resulted
in formulation changes to meet VOC and toxicity requirements. Tables of numerous military, commercial, industry, and NASA specifications
are given to help the engineer select the proper callout.
Audience
Answers questions on how to protect electronics in space, high humidity and temperature for military and commercial environments, as well as for medical implants and high-heat automotive electronics.
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 and Coil Coatings
4.13 Coatings for Space Applications
4.14 Coatings for Automotive Applications
4.15 Coatings for Electromagnetic Interference (EMI) Shielding and Electrostatic Discharge
(ESD)
4.16 Coatings for Medical Applications
4.17 Tamper-Proof Coatings
4.18 Temporary Coatings
4.19 Polymer Thick Fields
5.
Reliability Assurance and Testing
5.1 Initial Qualification
5.2 Receiving Inspection
5.3 In-Process Inspection and Testing
5.4
Final Inspection and Testing
5.5 Reliability Prediction
5.6 Failure Modes and Mechanisms
5.7 Test Procedures for Contaminants and
Cleanliness Assurance
5.8 Accelerated Stress and Environmental Tests
5.9 Tests for Coating Integrity
5.10 Adhesion
6. Test Methods
6.1 Physical/Mechanical Test Methods
6.2 Electrical Tests
6.3 Environmental Exposure Tests
6.4 Thermal Tests
6.5 Chemical/Analytical
Tests
7. Specifications and Documents
7.1 Top-Level Performance or Requirements Specification
7.2 Material Specifications
7.3 Process
Specifications
7.4 Work Instructions
7.5 Failure Analysis Documentation
7.6 Military, Space, Government and Industry Specifications
7.7 Specifications Relating to Organic Coatings
Appendix
| Bibliographic details |
Hardbound, 545 pages, publication date: JUN-2003
ISBN-13: 978-0-8155-1492-3
ISBN-10: 0-8155-1492-1
Imprint: WILLIAM ANDREW
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Last update: 5 Sep 2009
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