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1. Scope. The Aerospace
Qualified Electronic Component (AQEC) standard, GEIA-STD-0002-1, was developed
with the collaboration of integrated circuit and semiconductor device
manufacturers and users of these devices to provide a mechanism to more
effectively apply commercial parts in aerospace and other systems that require
specified reliability. As stated in GEIA-STD-0002-1, the intention of AQEC is
to
“a. Provide
AQEC users access to information from the AQEC manufacturers necessary to use
commercial-off-the-shelf (COTS) products.
b. Better
enable AQEC users to assess that these parts are capable of operating reliably
in their applications.
c. Minimize
deviations from the AQEC manufacturers’ COTS products.
d. Have
minimal impact on the AQEC manufacturers’ standard operating or business
procedures.
e. Promote
communication between the AQEC manufacturers and users.”
2. Applicable
Documents
GEIA-STD-0002-1, Aerospace Qualified
Electronic Component (AQEC) Requirements, Volume 1 - Integrated Circuits and
Semiconductors.
IEC TS 62239, Process management for avionics, Preparation of an
electronic components management plan-First Edition
AIAA R-100A, Recommended Practice for Parts
Management
GEIA: Government Electronics and Information Technology
Association
IEC: International Electrotechnical Commission
AIAA: American
Institute of Aeronautics and Astronautics
3. Definitions. See
applicable documents for definitions.
4. General
Guidelines
4.1 AQEC standard
requirements. The AQEC standard provides a means to share data on part
performance. The AQEC standard does not specify a uniform performance
requirement or any minimum part performance capability.
4.2 User responsibility. The
user’s responsibility in applying an AQEC part is the same as for any commercial
device, but it should be easier to get the information to properly apply the
part. An AQEC part may still require additional testing by the user to verify
capability for any particular application. An AQEC part may be appropriate for
one application and not for another.
5. Detail
Guidelines
5.1 Part application
assessment. Any AQEC standard part requires the parts application and
management guidelines specified in IEC 62239 and AIAA R-100 to justify use in
any application. These guidelines include application assessments that consider
the following factors:
- Materials (e.g., compatibility with
assembly processes, pure tin effects analysis, etc.)
- Derating (see SD-18,
http://www.crane.navy.mil/sd18/default.htm)
- Circuit tolerance analysis,
parameter variation effects on system performance
- Reliability for life cycle
environments and operation (see SD-18,
http://www.crane.navy.mil/sd18/LibraryDodRptsLifeCycleEnv.htm)
- Procurement availability, and
technology/upgrade roadmap
- Quality (assess for need of
additional screens, receiving inspection)
5.2 Part procurement. Users
should only procure AQEC standard parts through distribution channels approved
by the device manufacturer.
6. Notes
6.1 Information. For more
information contact US Army Aviation and Missile RDEC,
256-842-0163