Lam Research 716-031257-739 Top Edge Ring, Ceramic, 300mm

Name: Lam Research 716-031257-739 Top Edge Ring, Ceramic, 300mm
Brand: Lam Research
SKU: 716-031257-739
Availability: InStock

Part No. 716-031257-739

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Available by Request

Last verified: 2026-08-10

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✓Tested & inspected

✓Documentation included

✓Fast worldwide shipping

✓30-day functional warranty

✓Escrow payment available

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How much does a used Lam Research 716-031257-739 Top Edge Ring, Ceramic, 300mm cost in 2026?

Pricing for used Lam Research 716-031257-739 Top Edge Ring, Ceramic, 300mm units varies by condition and configuration. Contact us for current 2026 market pricing — typical savings vs. new OEM are 40–70%. Get a quote.

Used Lam Research Process Kit & Chamber Parts vs. buying new: is it worth it in 2026?

Used (2026)

✓Save 40–70% vs. new OEM

✓Lead time: 2-4 weeks

✓Condition: B grade

✓30-day functional warranty

New OEM

—Full OEM price (1–2.5× used)

—Lead times: 12–52 weeks

—New condition, full warranty

—Factory support included

Most buyers in 2026 choose used for cost and speed. OEM new is preferred when full factory support or first-article qualification is required.

What's included with a used Lam Research 716-031257-739 Top Edge Ring, Ceramic, 300mm from Caladan Semi?

Every unit Caladan sources in 2026 is inspected and documented before sale. Here's what you get:

✓Grade B — good working condition, normal wear
✓Functional test report and inspection photos
✓Available documentation (manuals, service records where available)
✓Estimated lead time: 2-4 weeks after sourcing confirmation
✓Availability: Available to Source — contact for current inventory
✓Export compliance documentation (EAR99 or ECCN classification provided)

How Much Does Lam Research 716-031257-739 Cost in 2026?

Used units typically range from $1,200 to $1,800, depending on plasma exposure history and ceramic integrity. Refurbished variants (with verified <500 plasma cycles since recoating) average $1,500–$2,000. This represents a 45–60% discount versus new OEM pricing ($3,500–$4,500). Critical caveat: parts with >10% edge erosion or microcracks (per ASTM C1250) drop in value by 30–50% and require derating. Market demand remains stable due to 300mm etch tool lifecycles extending past 2027.

Lam Research 716-031257-739 Specifications and Compatible Tools

Ceramic composition: 99.5% alumina (Al₂O₃), density 3.8–4.1 g/cm³. Dimensions: 304.8mm OD × 47.6mm H, with 0.025mm surface roughness (Ra). Rated for 350°C continuous operation and 5kV dielectric strength. Compatible with Lam Centura DSiE (2008–2015), Producer TCP (2012–2017), and Symphony Etch (2014–2019) platforms. Warning: Not compatible with 716-031257-740 (stainless steel variant)—using this part in non-OEM configurations voids tool warranties.

What to Check Before Buying a Used Lam 716-031257-739 in 2026

Surface integrity: Use a 5X magnifier and dye penetrant test (ASTM E1444) to detect microcracks. Reject parts with >3 cracks >2mm.
Edge wear: Measure OD with a 0.001mm-resolution micrometer. Tolerance must be within ±0.05mm of 304.8mm.
Dielectric test: Apply 4kV AC per IEC 60674-1. Fail if leakage exceeds 10µA.
Plasma cycles: Cross-reference tool logs. Parts with >8,000 cycles since last recoating show 20–30% faster erosion.
Thermal history: Check for glazing via X-ray diffraction (XRD). Alumina phase shifts above 1,400°C indicate overheating damage.