| Item type | Focusing ring A chamber ring used around the wafer/process area to help shape plasma or process exposure. |
|---|---|
| Material | Quartz / QTZ Quartz is used for high-purity, thermally stable chamber components. |
| Wafer size context | 200 mm Indicates use in a 200 mm process environment. |
| Process context | Poly/WSi Poly/WSi suggests polysilicon/tungsten silicide process context; verify tool recipe compatibility. |
| Other marking | 230M Preserved as a supported descriptor; exact significance not independently confirmed. |
A precision quartz chamber ring used near the wafer/process region.
Focusing rings influence plasma/process uniformity and must match chamber geometry, wafer size, and material requirements.
High-purity silica material commonly used for plasma-facing or high-temperature chamber parts.
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 10, 2026 16:16 UTC
Availability has not been rechecked; current availability is unknown.
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eBay response captured — Checked Oct 5, 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 5, 2026 16:04 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 5, 2026 16:04 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 5, 2026 16:04 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 16:01 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 16:01 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 16:01 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 16:01 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 16:01 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 16:01 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 16:01 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 16:01 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 16:01 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 16:01 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 16:01 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 16:01 UTC
Availability has not been rechecked; current availability is unknown.
Buy It Now
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| Currency | Price basis | Records | Minimum | Maximum | Mean |
|---|---|---|---|---|---|
| USD | Observed public listing prices | 17 | 995.0000 | 995.0000 | 995.0000000000000000 |
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.
No qualifying price-history observations were recorded for this match.
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.
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