MIL-PRF-19500 (formerly MIL-S-19500) titled Semiconductor Devices, General Specification for, has just been revised. This specification is one of the top Semiconductor specs for use by the Department of Defense.
The release of new 170 page Revision P requires compliance by April 20th, 2011. Changes from the previous Revision N are extensive and are not noted in the margins, as is sometimes the case.
This specification covers the general requirements for semiconductor devices used in electronic equipment procured by the U.S. military. The semiconductor devices covered by it are unique due to the fact that these devices must be able to operate satisfactorily in systems under demanding conditions such as: 20 g’s vibration, 100 g’s of shock, salt atmosphere, wide temperature range (e.g. -55°C to +150°C). In addition, these requirements are verified under a qualification system. Commercial components are not designed to withstand these environmental conditions.
MIL-PRF-19500P establishes the general performance requirements for semiconductor devices. Detail requirements and characteristics are specified in the specification sheet. Revisions to this specification and it’s corresponding specification sheets are structured to assure the interchangeability of devices of the same part type regardless of manufacturing date code or conformance inspection (CI) completion date.
Five quality levels for encapsulated devices are provided for in this specification, differentiated by the prefixes JAN, JANTX, JANTXV, JANJ, and JANS. Eight radiation hardness assurance (RHA) levels are provided for the JANTXV and JANS quality levels. These are designated by the letters M, D, P, L, R, F, G, and H following the quality level portion of the prefix. Two quality levels for unencapsulated devices are provided for in this specification, differentiated by the prefixes JANHC and JANKC.
The main body of this document specifies the performance requirements and requires the manufacturer to verify that their devices are capable of meeting those performance requirements.
Appendix A contains definitions of terms used throughout the specification. Appendix B contains abbreviations and symbols. Appendix C contains the Quality Management (QM) Program. Appendix D contains the quality system. Appendix E contains the standard verification system for qualified products. Appendix F has been canceled. Appendix G contains discrete semiconductor die/ship lot acceptance. Appendix H contains critical interface and materials for semiconductor devices.
The document number was changed from MIL-S-19500 to MIL-PRF-19500 during the Mid-1990’s Mil Spec Reform to designate the performance specification status of the document.
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