1. Distinguish the Material Code from the Device Family
Start with the material the owner actually proposes to supply: identified loose dies in a carrier, a documented die-on-frame item or another specifically described form. An equipment or packaged-IC reference may explain its origin, but does not alone establish the identity of a bare-die product. Preserve the original label and material reference without silently converting them into a packaged-device code.
ADI's Die and Wafer Models catalogue places Generic, Material, Description, Order Qty and Package Option in separate columns. This is a useful example of the distinctions an inventory record can lose when it retains only a familiar family name. The document's material entry and packing description should remain linked to the corresponding row.
Use the actual supported material code alongside the generic family reference. If a receipt contains only the family name, describe the material identification as incomplete. Do not derive a die suffix from a packaged component number, a nearby catalogue row or an owner's recollection of the circuit that once used the product.
The catalogue carries a historical document date and includes Contact ADI entries. It is an identity reference, not a live offer for the owner's stock. Preserve that limit when using it to clarify terminology. Neither a row in the document nor a contact instruction confirms quantity, orderability or a commercial proposal for the surplus material.
2. Describe the Actual Carrier and Die-Quantity Basis
Record the carrier shown by available packing records separately from the die material identity. ADI's catalogue includes distinct packing descriptions, while its Gel-Pak and Waffle Pack document addresses bare-die packaging. The historical packing note directs readers to the specific HMC product data sheet for the packing used by that product; a general carrier example cannot choose an unknown lot's packing configuration.
Retain what is actually known about the supplied carrier: its label or reference, whether the material remains in its documented original arrangement, and any disclosed partial or changed contents. An empty carrier and a carrier holding identified dies are different deliverables. A photograph can support an observation, but should not be promoted to a complete contents or usable-die count without its own basis.
Keep carrier quantity, recorded die quantity and any confirmed present count as different fields. Where contents are not established, report the quantity as unresolved. Do not multiply carrier capacity by carrier count or describe every position as an acceptable die. The existing warehouse guide covers wider container reconciliation; here the decision concerns what bare-die material the carrier actually represents.
This identification review gives no opening, pickup, orientation, bonding or repacking procedure. Preserve available records and ask the responsible handling team to address any work needed to establish contents. Changing the packing just to obtain a quotation would create a different handling question beyond recording the material as it stands.
3. Keep Catalogue Identifiers Separate from Test Coverage
The ADI catalogue includes KGD-style material identifiers. Retain such text exactly as part of a supported product reference rather than deleting it or expanding it into an assertion about every physical die. A string in a catalogue does not connect an offered carrier to a current known-good result for its contents.
If the owner supplies an existing test or wafer-related record, identify the material and lot it actually covers. Keep the report reference, date, declared scope and any available relation to the offered carrier. An unlinked file or a report for another material code should remain an unresolved reference rather than a general tested-good flag.
Distinguish the number of dies physically described from the quantity covered by a report and from any quantity accepted under an agreement. These questions cannot be answered by carrier count alone. If the relevant map, report or contents evidence is unavailable, name that gap instead of estimating which positions or pieces would pass a customer's requirements.
Record known condition and packing changes independently from a test identifier. A clean-looking carrier does not disclose the material's complete handling history, and an old catalogue description supplies no present inspection result. This article reports no probing, screening, yield determination or verification of a real bare-die lot.
4. Submit Supported Die Groups and Specific Identity Gaps
Build the enquiry around the exact supported material code and actual carrier description. Keep packaged IC stock, unresolved die candidates and empty carriers distinguishable. Also retain differences in document coverage rather than combining every item associated with one generic family into a single known-good die group.
Ask the owner to confirm which identified material is authorised for release and which non-sensitive records may be shared. For an incomplete group, identify whether the missing evidence concerns material code, carrier contents or report coverage. These are distinct questions; a clearer packing label does not automatically resolve the test-record gap.
For an ICULTRA bare-die enquiry, provide the available material references, actual carrier identities, declared quantities with their basis and permitted lot-linked records. Request assessment of that specific scope. Catalogue presence, a historical packing example and KGD-style wording establish neither usable quantity, current supply availability nor an agreement to purchase the offered material.
Sources and further reading
- Analog Devices Die and Wafer Models Catalogue
- Analog Devices Historical Gel-Pak and Waffle Pack Bare Die Packaging Information
ADI's Die and Wafer Models catalogue and historical Gel-Pak/Waffle Pack information support the identity-field examples. Only the catalogue headings and the packing note are used; these documents do not confirm seller stock, usable-die counts or the condition of an offered lot.