DPA (Destructive Physical Analysis) is performed at EAG (Formerly SEAL Laboratories) on “high reliability” electronic components and materials used in aerospace, commercial, military and government applications.
The lifetime of electronic components follows a predictable trend. A significant number of components fail prematurely at a very early age (“infant mortality”). The infant mortality problem can be addressed by the implementation of stringent quality controls during manufacturing. SEM examination of metallization, glassivation analysis, thorough precap inspection, electrical burn-in, and DPA procedures will identify respective problems.
Once past this initial failure stage, they usually perform for a long period of time with a low probability of failure. Destructive Physical Analysis (DPA) is performed to ascertain the high quality of parts used in the designs of space and launch vehicles. It is a comprehensive test program performed on a sampling of parts from a given lot to assess their quality and reliability. DPA is used to inspect and verify the internal design, materials, construction, and workmanship of those parts. This analysis is useful to determine those lots of parts which have anomalies or defects which may, at some later date, cause degradation or catastrophic system failure. DPA subjects each part to be tested to numerous electrical, mechanical and analytical tests to assure product reliability or to ascertain the likelihood and/or probable cause of failure. Our facilities are DLA (Defense Logistics Agency) certified for various MIL-STD testing requirements, including MIL-STD-1580, MIL-STD-883, MIL-STD 750, MIL-STD-202 and more.
Die shear during DPA testing
DPA is routinely used by the aerospace industry in order to qualify electronic components to Class “S”. More and more commercial applications are using DPA screening to dramatically increase the reliability of their products in the field. Higher reliability electronic components are often required to operate for long periods of time, having little or no opportunity for replacement. Orbiting satellites are good examples of this situation. Parts that meet the requirements for “space usage” are also used in applications where replacement is difficult and/or failure engenders great risk.
EAG has been performing Destructive Physical Analysis (DPA) for over 40 years on materials used in aerospace, commercial, military, and government applications. Our facilities are complete and DLA certified for various MIL-STD testing requirements. Testing capabilities include External Visual Inspection, Radiography, Hermetic Seal Testing (Fine Leak, Gross Leak), Particle Impact Noise Dectection, (P.I.N.D) Testing, DLA Certified Residual Gas Analysis (RGA)/Internal Water Vapor Content Testing, Delid/Decap/Case Removal, Internal Visual Inspection, Bond Pull Strength, Die Shear, SEM Inspection and Microsectioning. It is a systematic detailed examination of parts during various stages of physical disassembly. Parts are examined for a wide variety of design, workmanship, and processing problems that may not show up during normal screening tests. It is the process of testing and inspecting of a component in conformance with applicable military standards and design requirements.
Dye penetrant failure on a double slug glass diode
We have many years of experience providing DPA testing at our Los Angeles (formerly known as SEAL Laboratories). For more information regarding DPA testing contact Evans Ryan at firstname.lastname@example.org or call +1 310 322 2011.
Types of parts inspected by DPA analysis at EAG Laboratories:
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