Does TI sell flip-chip, daisy-chain die (chip, IC) that can be used to check continuity and assembled for Coefficient-of-Thermal-Expansion testing (preferably with 63/37 SnPb bumps)?Page 9 of your document at www.ti.com/.../spraa99b.pdfstates “Texas Instruments offers daisy-chained units in all production nFBGA packages.” However, I’m unable to find them on the ti.com website. I'm only interested in the flip-chip die (chip, IC), not the entire package. If you do offer them, would you please give me more information (including pricing and minimum order quantities)?Sincerely, John Masnik
Please review the Die & Wafer Products on this page: https://www.ti.com/die-wafer-services/products.html .
As indicated on the Overview page, the Authorized Distributor for die sales is Micross, please use the link provided on that page to obtain ordering information.
At your service,
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In reply to LeonardEllis:
There is no daisy chain die on your Die & Wafer Products webpage. So, they are no longer offered, if they ever were. Thanks.
In reply to John Masnik1:
As you highlighted in the text from page 9 of the App Note:
“Texas Instruments offers daisy-chained units in all production nFBGA packages.” ,
Since you are asking about die, I don't see where this daisy-chain feature would apply, correct? I have asked some experts on die and will update this if I find out anything different.
Thanks for your reply. I'm not sure I understand your statement "I don't see where this (die) daisy-chain feature would apply?" You're correct that the reference I gave that “Texas Instruments offers daisy-chained units in all production nFBGA packages” does not mention a die. However, it depends how the daisy-chain package is made. The daisy chain package could only be a package or may also contain a die. If it contains a die, the die may be a dummy die (electrically inactive) or electrically active (the daisy chain weaves between the die and package). I don't know which is the case for the TI daisy-chain nFBGAs, which is why I was looking for a description (and ultimately, if it's for sale). As I was unable to find any daisy-chain product on ti.com for reliability testing, I realized it probably is not offered. I contacted your support, however, on the long-shot that all your catalog is not on your website. Thanks again for looking into this matter.
As you suggested, daisy-chain products are not available. I hope you can find products for your design through Micross.
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