| Item noun | Confinement ring Repeated identity. |
|---|---|
| Material | Vespel Repeated material description. |
| Manufacturer | Lam Research Request manufacturer and sources align. |
A chamber ring is a shaped process-area component used around wafers, electrodes, shields, or chamber openings.
Rings influence plasma confinement, edge exclusion, process uniformity, and protection of more expensive chamber hardware.
High-performance polyimide used in some confinement or insulating ring applications.
High-purity ceramic material often used where thermal and plasma compatibility are important.
Metals used in PVD-related chamber hardware when process compatibility requires them.
Product reference only. Confirm fitment, revision, included components, and specifications before purchase.
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Observed public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 5, 2026 16:20 UTC
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| Currency | Price basis | Records | Minimum | Maximum | Mean |
|---|---|---|---|---|---|
| USD | Observed public listing prices | 2 | 1017.6900 | 1050.0000 | 1033.8450000000000000 |
Amounts without an established currency are retained in the history below and excluded from monetary comparisons. Bids, public listing prices and accepted amounts are distinct; no currency conversion is applied.
| Time recorded | Listing | Observation | Public price | Recorded acceptance |
|---|---|---|---|---|
| Jul 26, 2025 08:43 UTC | Lam Research Ring Confinement, Vespel PN 713-028487-001 | Completed listing price | 1075 (currency not captured) | Not established |
| Oct 25, 2023 15:03 UTC | 713-028487-001 / RING CONFINEMENT / LAM RESEARCH | Completed listing price | 1000 (currency not captured) | Not established |
| May 12, 2022 16:38 UTC | LAM RESEARCH RING, CONFINEMENT, VESPEL 713-028487-001 | Completed listing price | 974.25 (currency not captured) | Not established |
| Nov 16, 2020 14:46 UTC | Lam Research 713-028487-001 B Ring New, Never Used | Completed listing price | 1150 (currency not captured) | Not established |
| Jul 10, 2020 20:57 UTC | LAM, 713-028487-001, Confindment Vespel Ring | Completed listing price | 699 (currency not captured) | Not established |
| Mar 3, 2020 19:12 UTC | LAM RING CONFINEMNT (VESPEL) p/n: 713-028487-001 | Completed listing price | 375 (currency not captured) | Not established |
| Jun 12, 2018 21:53 UTC | LAM RESEARCH (LAM) 713-028487-001 Vespel Ring, Confinement | Completed listing price | 895 (currency not captured) | Not established |
Public listing prices, direct recorded sale prices and recorded accepted Best Offer amounts remain distinct. Quantities are source estimates. No aggregate sales total or average is inferred.
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Legacy record; no enhanced status check captured
Check time or freshness is unknown; current availability is unknown.
Best Offer lookup was not verified; no accepted-price claim is made.
View on eBayLegacy public listing price; currency may not have been captured.
Legacy record; no enhanced status check captured
Check time or freshness is unknown; current availability is unknown.
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