ASAHIKOHSAN CO.,LTD.
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FPD (flat panel display) production equipment

We manufacture Glass substrate handling equipment and various flat panel display production equipment used for liquid crystal display (LCD), plasma display (PDP), and organic EL (electroluminescence) or FED (field emission devices).
In addition to domestic locations, we have supplied our products to factories in various countries including Taiwan, South Korea, Singapore, and China.
We have also organized local maintenance services in Taiwan. Local maintenance services are also expected to be established in Shanghai. Additionally, local production maintenance operations sre being established in Taiwan.


Our capabilities cover a wide variety of services including system design for various production lines, new development of manufacturing equipment, and OEM product development.




1 Sheet-feeding conveyer system for large-sized glass substrates

@High speed sheet-feeding lifter for G8 size
glass substrate
(applicable to G9 and G10 sizes)

The lifter is used for conveyance from floor to floor and among producing equipments.These operations must have a long conveyance distance and this point is a neck of shortening the tact time up to now. But now we have solved this problem by actualizing high speed.

Characteristics
a. 90 m/min of high working speed
We have actualized 90 m/min of high working speed by design based on air fluid theory.
b. The system has no cable carriers.
We take new types of driving system, and there is no need of cable carriers.
c. Glass substrates are prevented from possible damage during going down by air pressure.
The lifter has air current control panels based on the fluid theory in order to prevent glass substrates from coming up and being damaged by air pressure.
d. It is possible to answer flexibly to customers’ request respecting working stroke in the vertical direction.
By taking the belt driving system in addition to disuse of the cable carriers, the range of working stroke is extended so widely ( it is possible to answer to long stroke specifications ).
e. Improvement in cleanliness
Addition to the decrease of dust sources by disuse of cable carriers, an air exhauster provided in the system improves the cleanliness of the system.
f. Compact style and lower noise level
The disuse of the cable carriers and the space saving design realize the compact size, nearly same as the size of the glass substrate and the lower noise level ( 75 db or below).


ASlightly tilting air-floating conveyer for G8 size glass substrates
( Applicable to G9 and G10 sizes glass substrates)

We’d like to give customers a new suggestion for sheet-feeding air-floating conveyance of mixed glass substrates of various generations on 8th and after.
Formerly it makes a considerable increase in cost to make mix conveyance of various sizes of thin glass substrates which are used for liquid crystal displays. But now the introduction of the Slightly tilting air-floating conveyers makes it possible to reduce the cost sharply and to realize high speed conveyance.
Please inquire for G9 and G10 sizes glass substrates, if you have any questions.


Characteristics
a. A sharp cut in cost
By taking a slightly tilting method (an angle of 10 degrees or below, normally about 6 degrees), we realized a sharp reduction in cost comparing with the former one side driving conveyer ( G8 size, and plural sizes specifications ) .
b. Realization of high speed conveyance
By the adoption of the one side corner belt conveyer, high speed conveyance of normal 36 m / min and maximum 40 m / min was realized.
c. Mix conveyance of various sizes of glass substrates is possible.
One side driving system makes it possible to convey many sizes of glass substrates continuously.
d. The conveyer makes it possible to convey glass substrates without damage.
Different from the conveyance method putting glass substrates on their end, the slightly tilting conveyance gives them little damage such as deformation.
e. Improvement in stability during operation
Special air blower nozzles improve in the stability of conveyance and decrease factors of disturbance of air flow.
f. Clean floating air
In order to supply clean floating air, a built-in blower is equipped. The floating air is supplied after filtration.
g. Many types of conveyers answer to various conveyance patterns.
Various types of conveyers with a line shift device ( cross type and turn type ) and with a tilting angle turning device are kept ready, and answer to each type of conveyance.



Slightly tilting and air-floating conveyer
( For G8 size glass substrates)





BHorizontal air floating(non-contact) conveyer
Our past accomplishments include the development and manufacturing of the first air floating conveyance device for a major company in Japan in 1998.

Using the best of our experiences and implementing standardization has resulted in the ACA series becoming available for market sales.


Large-scale high-speed glass substrate (non-contact) transportation system

ACA series


Cross type conveyer

Speciaty

1 Successful cost reductions made through the application of our original design small block structure.
2 Reduction in air turbulence within the shell accomplished with the small blocks.
3 Reduction in running costs.
Floating air is controlled by small blocks.
Floating air is generated by blowers inside the device.
4 Conveyance speed
Standard  20m/min
Maximum   40m/min
5 Whole glass substrate shape has minimal sag (less than 1mm) while floating.
6 Conveyance system is operated by a dual drive system.
7 Smooth transport is possible between conveyance platforms with gaps or size differences.

In addition, a variety of upgrade options are available.

a Cleanliness-level improvements
HEPA Filter Unit(FFU)
b Static electricity prevention
Ioniser
c Compound glass and thick PDP glass conveyer capabilities.
d For other glass substrate sizes, we are capabie of producing various sizes and multi-sized glass substrates according to the customers orders.
e Solutions for systemization of wire cassette station, loader/un-loader, and other devices.


・Compatible to various production lines.
・3 Standard model of glass substrate production

*Pre- processing
*Treatment device
*Examination Device



Specification(G8)
Giass substrate (G8)
series
Size of device (mm) Weiht(kg)
Strait
ACA-S-2460
4,095(Note1) 2,600 2,675 2,500
Cross
ACA-C-2460
3,043 2,738 2,675 2,000
turn
ACA-T-2460
3,562 3,500 2,675 2,500
Size of giass substrate 2160mm×2460mm×0.7t or
2160mm×2400mm×0.7t
Air consuming 0.1Nm3/min(Over 0.4Mpa)
Conveyance speed 20m/min. 40m/min. Maximum (Note2)
Air floating sunrce 2.2Kw blower × 3
Conveyance method Either side of roller drive
Electricity consuming 10KVA
Exhaust 10Nm3/min
(FFU been installed)


Specification(G5.5)
Giass substrate (G5.5)
series
Size of device (mm) Weiht(kg)
Strait
ACA-S-1500
4,095(Notn1) 1,920 2,215 1,800
Cross
ACA-C-1500
2,470 2,308 2,215 1,800
turn
ACA-T-1500
2,621 2,200 2,215 1,800
Size of giass substrate 1300mm×1500mm×0.7t or
1320mm×1500mm×0.7t
Air consuming 0.1Nm3/min(Over 0.4Mpa)
Conveyance speed 20m/min. 40m/min. Maximum (Note2)
Air floating sunrce 2.2Kw blower × 1
Conveyance method Either side of roller drive
Electricity consuming 5KVA
Exhaust 10Nm3/min
(FFU been installed)

Note1: Modification of dimensions is possible.
Note2: Only strait type conveyance is capably of reaching 40m/min.




2 Glass Substrate Loader/Un-loader

@Array process
Shifting type dual-arm robot
Compatible up to 8th generation glass substrate

photograph : Loader Loader Conveyer type

Loader/Un-loader corresponds to high-density wire cassette.
Non-contact transition structure is included to reduce dirt on the removal conveyer.


ACell process
The loader used for a variety of data processing examinations



   In-line Multi loader



3 Wire-cassette station

Wire cassette device supplies and receives glass substrate to/from a loader/un-loader device. Non-contact transition structure is included to reduce dirt.
This station is compatible to the air-floating conveyance device.



  Wire-cassette station



4 Glass Substrate packer/un-packer system


 Glass Substrate packer/un-packer

@Glass Substrate packer/un-packer
Multi-jointed robot type
Compatible up to convey 8th generation glass substrate.

AGlass Substrate shipping line
Glass substrate examination unit, compounded-paper supply device, pallet carrying, pack and bale.


5 Vacuum Processing Equipment

Vacuum chambers and other various vacuum processing equipments


6 Peeler Device

Device for peeling off the film pasted on glass substrate

 
     Peeler




7 Other film processing equipment

Cut-film handling equipment
Roll-film accessory equipment
Compatible with examination device.



8 Conveyer and other transport equipment

Correspond to various transport methods such as conveyer and lifter.


Semiconductor production equipment

Loader/un-loader
Spin coater, wafer-washing equipment
Substrate thickness measurement equipment, mounter
In addition, various types of equipment is manufactured.



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