This is to advise you that a Design and/or Process Change will be made to the following High Reliability product(s):
Product ID (Description): All B level products/883, Jan B, and Logic LS family.
See Table 1 for affected part numbers.
Proposed Date of Change: Datecode 0126
Description of Change: The B/Q level Logic LS Family devices manufactured after the above date will no longer have 100% production burn-in. A burn-in process monitor has been established to ensure continued quality and reliability. Operational life burn-in will continue to be performed on Logic LS Family, JAN B and 883 product per standard Quality conformance Inspection rules.
This reduction does not affect any B level radiation tolerant, JAN Level S or Custom -MLS products.
Under the guidelines of MIL-PRF-38535 QML process reduction procedures, National Semiconductor's Technology Review Board has reviewed and approved this process modification.
Effect of Change: This change should have no impact on quality or reliability to customers. Logic LS Family is a mature product line which has been manufactured in the same FAB facility for 14 years. The FAB process is well understood and controlled. The burn-in process monitor that has been instituted will ensure continued process control.
Associated Notes / Table(s):
This PCN can also be sent to customers by copying and pasting the attached PDF file into an email:-