| Material | Quartz Repeated as quartz/QTZ in source descriptions. |
|---|---|
| Size | 8 inch / 200 mm context Both 8 inch and 200 mm wording appear. |
| Application wording | EXT cath Likely external cathode/cathode-area ring context; exact abbreviation expansion is not confirmed. |
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.
No public documents were listed for this part when captured.
Prices and availability may change. Confirm details with the seller.
Observed public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 13, 2026 16:10 UTC
Availability has not been rechecked; current availability is unknown.
Best Offer · Buy It Now
View on eBayObserved public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 1, 2026 16:10 UTC
Availability has not been rechecked; current availability is unknown.
Buy It Now
View on eBayObserved public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 1, 2026 16:10 UTC
Availability has not been rechecked; current availability is unknown.
Buy It Now
View on eBayObserved public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 1, 2026 16:10 UTC
Availability has not been rechecked; current availability is unknown.
Buy It Now
View on eBayObserved public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 1, 2026 16:10 UTC
Availability has not been rechecked; current availability is unknown.
Buy It Now
View on eBayObserved public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 1, 2026 16:10 UTC
Availability has not been rechecked; current availability is unknown.
Buy It Now
View on eBayObserved public listing price, not an accepted sale amount.
eBay response captured — Checked Oct 18, 2026 16:06 UTC
Availability has not been rechecked; current availability is unknown.
Best Offer · Buy It Now
View on eBay0 matching listings.
No active-status direct listings are shown on this page.
Auction listing history. Direct marketplace listings are shown separately.
| Currency | Price basis | Records | Minimum | Maximum | Mean |
|---|---|---|---|---|---|
| USD | Observed public listing prices | 7 | 750.5600 | 1000.0000 | 857.2228571428571429 |
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 |
|---|---|---|---|---|
| Sep 22, 2025 20:20 UTC | 0020-30362 / RING QUARTZ 8 EXT CATH / APPLIED MATERIALS AMAT | Completed listing price | 1541.51 (currency not captured) | Not established |
| Jun 16, 2023 00:09 UTC | Applied Materials 0020-30362 Top Ring, SXTAL 200 MM AMAT Etch | Completed listing price | 1000 (currency not captured) | Not established |
| Aug 9, 2022 02:11 UTC | 0020-30362 / RING QUARTZ 8 EXT CATH / APPLIED MATERIALS AMAT | Completed listing price | 1541.51 (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.
Prices and availability may change. Confirm details with the seller.
Legacy 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.
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.
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.
Best Offer lookup was not verified; no accepted-price claim is made.
View on eBay0 of 0 matching services.
No services match this search.
Marketplace search uses listing titles and service keywords, with quoted phrases and -excluded terms.