Waferpedia

YES

15 HMDS Vapor Prime

Thermal / Diffusion
Research Quality: 40% complete

Provisional entry — research in progress

This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.

The YES 15 HMDS Vapor Prime Oven is a vacuum oven designed for HMDS vapor priming to improve photoresist adhesion on wafers. The YES 15 HMDS Vapor Prime Oven uses hexamethyldisilazane (HMDS) vapor that forms a monolayer on wafer surfaces after dehydration at 150 °C. The YES 15 HMDS Vapor Prime Oven has a chamber of 16x16x16 inches with a fixed shelf and 1700W heaters.[1]

YES15 HMDS Vapor Prime
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What it is

The YES 15 features a chamber measuring 16 inches by 16 inches by 16 inches with a fixed shelf. The oven includes 1700 watt heaters, a temperature controller, an HMDS cylinder, a logical sequencer, and a Granville Phillips 275 Convectron gauge. The system is capable of processing 8-inch wafers.[2][4][3]

How it works

The YES 15 operates by dehydrating clean wafers through a series of heated evacuations and dry nitrogen refills at 150 degrees Celsius. After dehydration, HMDS vapor is introduced into the evacuated chamber, where it adsorbs onto the wafer surfaces to form a monolayer. The system provides two selectable sequences: Sequence 1 for HMDS vapor prime, which takes approximately 30 minutes, and Sequence 2 for substrate dehydration only, which takes approximately 60 minutes. During operation, the oven temperature is maintained between 102 and 104 degrees Celsius.[1]

Applications

The oven can also be used for substrate dehydration alone, independent of HMDS priming. Both silicon and glass substrates are commonly processed in the system.[1]

What do the numbers mean?

Wafer handling2

Wafer size
8 inch[3]
Accurate?
Process time for substrate dehydration
~60 minutes[1]
Accurate?

Control & software1

Temperature controller
included[2]
Accurate?

Dimensions & facilities1

Chamber dimensions
16" x 16" x 16"[2]
Accurate?

Configuration & options8

Heater power
1700 W[2]
Accurate?
Dehydration temperature
150 °C[1]
Accurate?
Operating temperature
102–104 °C[1]
Accurate?
Process time for HMDS vapor prime
~30 minutes[1]
Accurate?
Gauge
Granville Phillips 275 Convectron Gauge[2]
Accurate?
Logical sequencer
included[2]
Accurate?
HMDS cylinder
included[2]
Accurate?
Fixed shelf
included[2]
Accurate?
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Where are the manuals?

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Not publicly documented

Field notes

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Not publicly documented

The following facts about the 15 HMDS Vapor Prime are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

  • No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the 15 HMDS Vapor Prime are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • No publicly documented variants, configuration options, or revision breakpoints of the 15 HMDS Vapor Prime are on record.

    Answerable by: an OEM product catalog or an engineer who ordered or specified the tool

  • The control-system platform and OS era of the 15 HMDS Vapor Prime are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • No publicly documented failure modes or field errata for the 15 HMDS Vapor Prime are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the 15 HMDS Vapor Prime is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (4)Every fact above is drawn from these public sources
  1. [1]bpb-us-e2.wpmucdn.combpb-us-e2.wpmucdn.combpb-us-e2.wpmucdn.com
  2. [2]classoneequipment.comclassoneequipment.comclassoneequipment.com
  3. [3]Equipment inventory listing
  4. [4]Yield Engineering YES 15 HMDS Vapor Prime | Tested | ClassOneclassoneequipment.comclassoneequipment.com
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Last updated Sep 1, 2026.

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