Semiconductor and Electronic component production equipment

Spin Dryer

Horizon-type Spin Dryer

OKH-series
Safe and Clean Drying has been Realized!!
スライディングカバー 6ヶ掛け ヒーター付公転式Spin Dryer エリアセンサー付公転式Spin Dryer

Outline

There are three types: full automatic, semi automatic, and manual.

Stand-alone Spin Dryers with various lineups (wafer centrifugal dryer)
There are a variety of options such as Full Automatic Balancing device (FAB) , heaters, or rinsing of a chamber.
With our original balancing technology, we realize drying with a 6-in and an 8-in cassette as well as 2 cassettes of
3-in, 4-in, 5-in, or 6-in or 2 cassettes of 3-in, 4-in, or 8-in to meet your requirements.
Equipped with FAB, you can dry with a difference from 0 to 25 wafers without using dummy wafers.


  • Drying performance has improved with effective air flow. Drying time is shortened accordingly.
  • Strictly eliminates dust-causing factors. See the particle evaluation.
  • 'Spin Dryers without vibration' as its design concept realizes high-quality rotation performance, supported by the original vibration analyzing technology.
  • Add options such as the original automatic vibration control mechanism of FAB (Full Automatic Balancing device) or wafer crack detection system to make it more functional.
  • Applicable to wafers or substrates made of materials other than silicon. Please consult with us if interested.

Option

Automatic balancing device

By installing to the rotating unit of Spin Dryer, the automatic balancing device will control the vibration even with unbalanced wafer numbers. The breakthrough device has been developed with the vibration analyzing technology over the years.
The device will be most effective under when dealing with the weight difference due to variation of wafer kinds or fluctuation in wafer numbers.
The device is also recommended to eliminate vibration even when there is not so much weight difference or wafer number difference, or when different-sized wafers are used.

Automatic balancing system

Best for less difference in wafer numbers. Easier to install and operate.
More users use this with manual Spin Dryers.
Perfect when there is variation of wafer kinds or fluctuation in wafer numbers.
No need adjust number of wafers,Operator can focus other works.
No need dummy wafer,you can keep chamber clean.

Sliding Lid cover

Sliding lid enables a robot to move freely above Spin Dryer and thus saves time significantly including the lid opening and closing time.

・Saves the lid opening and closing time.
・Moving space of a robot is highly unlimited.
・Standing by above Spin Dryer, a robot can insert wafers right after the lid opens.


time:2min 58sec

Heater High throughput

Drying efficiency improved to a limit

Drying efficiency is improved with a heater attached to the opening part taking warm air into the chamber.
Works best with smaller difference in wafer number.

吸気口上部

Particle check results

The evaluation of 5 or less particles of 0.16 μ or more was highly rated by O Laboratory at Tohoku University, which was with the Spin Dryer of basically standard specifications.

Evaluation Sheet from O Laboratory at Tohoku University

Test condtion

1.Prepare bare wafers. Measure an initial value with a particle counter.
2.Perform drying operation. (1,000 min-¹ 480 s)
3.Measure a value with a particle counter.

ウエハ

Particle counter SFS6420 KLA-Tenco
Test wafer 8-in silicon wafer (SLOT 1,4,7)
Spin Dryer OKH-800series 7-wafer cassette
Horizon-type
1 cassette
Simple Balancer installed
Standard shaft mechanism
↓

Results

(µm) SLOT 1 SLOT 4 SLOT 7
Ini. Aft. Diff. Ini. Aft. Diff. Ini. Aft. Diff.
0.160-0.200 0 1 1 0 3 3 1 2 1
0.200-0.300 1 0 -1 2 3 1 0 0 0
0.300-0.400 0 1 1 0 0 0 1 1 0
0.400-0.500 0 1 1 0 1 1 0 0 0
0.500-0.700 0 1 1 0 0 0 0 1 1
0.700-0.900 0 0 0 0 1 1 0 0 0
0.900-1.20 0 0 0 1 0 -1 0 0 0
A/C 1 0 -1 0 0 0 0 1 1
TOTAL 2 4 2 3 8 5 2 5 3

Specifications

Model
Automatic Type
オート
Semi-auto or Manual Type
セミオート / マニュアル
Revolution 2-6inch Max 1,000min-¹
8inch
12inch Max 700min-¹
Dimensions 2-6inch 750×1350×1100 (mm) 750×1430×1100 (mm)
8inch 850×1450×1150 (mm) 850×1530×1150 (mm)
12inch 1050×1700×1170 (mm) 1050×1780×1170 (mm)
Type Horizon downflow type spin dryer
Size of wafers for use 2-12inch
Power source AC200V (50/60Hz)
Cradle Possible to mount 2 or 4 cradles
Speed setting 1st-speed, 2nd-speed
Material SUS316L (EP) for both turn table and cradle
Exterior PVC
Safety feature Automatic stop upon unusual vibrations, overload operation prevention
Start-up time 30 seconds or less(12in) / 25 seconds or less(∼8in)

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