How are 2020 MARK date codes (example: 027BB135) differentiated from 2010 MARK date codes (example: 035BB246) for FLASH Memory Products?
Will Infineon change the date code format for 2020 MARK date codes and beyond?
No. Infineon will not change the date code format for 2020 MARK date codes and will remain unchanged, moving forward.
The purpose of the four-digit SEAL date code provides information as to the production-assembly year and workweek when the package was assembled into its final form. Example of 2019 SEAL date code: 1949DMA:
However, to differentiate a 2020 (production year) MARK date code (ex.: 027BB135) from a 2010 (production year) MARK date code (ex.: 035BB246), the SEAL (four-digit) date code is used to determine the actual production year. A MARK date code to exist before a SEAL date code is not possible and is an invalid production/process flow. The SEAL date code information can be found on the official box shipping label, as well as on other shipper/traveller paperwork that accompanies the devices, during shipment.
2020 MARK (027BB135) date code examples
“0” = 2020 production MARK year (year will vary)
“27” = workweek 27 within production year (workweek will vary)
“B” = Bangkok assembly Location (letter may vary)
“B” = Bangkok MARK and PACK location (letter may vary)
“135” = Alphanumeric (running) sequential number (number/letter will vary)
Corresponding 2019 SEAL (1949DMA) date code example
“19” = 2019 production assembly year (year will vary)
“49” = workweek 49 within production year (workweek will vary)
“D” = Date of the week for package assembly (letter may vary)
“B” = Bangkok MARK and PACK location (letter may vary)
“A” = Alphanumeric (running) sequential number (number/letter will vary)
Therefore, the SEAL date code of 2019 confirms the 2020 production-MARK year.
2010 MARK (035BB246) date code example
“0” = 2010 production MARK year (year will vary)
“35” = workweek 35 within production year (workweek will vary)
“B” = Bangkok assembly Location (letter may vary)
“B” = Bangkok MARK and PACK location (letter may vary)
“246” = Alphanumeric (running) sequential number (number/letter will vary)
Corresponding 2009 SEAL (0946DBC) date code example
“09” = 2009 production assembly year (year will vary)
“46” = workweek 46 within production year (workweek will vary)
“D” = Date of the week for package assembly (letter may vary)
“B” = Bangkok assembly location (letter may vary)
“C” = Alphanumeric (running) sequential number (number/letter will vary)
Therefore, the SEAL date code of 2009 confirms the 2010 production-MARK year.
To have a MARK date code to exist before a SEAL date code is not possible and is an invalid production or process flow.
The SEAL date code no longer appears on the topside package marking. Therefore, see the shipping label and associated shipper/traveller paperwork for the SEAL date code to determine the actual production yea
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Translation - Japanese: フラッシュメモリ製品における2020年MARK Date codeと2010年MARK Date codeの区別について- KBA230044- Community Translated (JA)
