DDI (Display Driver IC) is the core semiconductor driving the display in the electronic products. It is the semiconductor element which expresses the colors by adjusting the pixel in the display.
DDI is broken down to panel DDI and mobile DDI in terms of its application.
Depending on how DDI is attached, DDI is divided into COG (Chip On Glass) which is DDI directly stuck on the glass circuit board and COF (Chip on Film) which is the DDI directly stuck on the film.
This is the packaging technology which is jointly applied not only to mobile DDI but also to panel DDI.
The panel DDI, which is used for the medium and large sized electronic products such as tablet and TV drives large display, is made with several gate ICs (which control the flow of data), source ICs (expressing the color by controlling the image signal) and T-CON.
In addition, there is the T-CON (Timing CONtroller) which converts the image information to the signal required by DDI.
The mobile DDI contains the small sized electronic products such as smart phone. It has all functions in its small DDI such as source IC and gate IC, unlike the panel DDI which have several things in it.
ALT is capable of 6, 8, and 12 inch wafer tests and provides customers with a total test solutions including test program development. We provide the best test solution by establishing dedicated DDI test facilities capable of high speed image interfaces and cooling test system.
Probe Test Process
Store
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1
IQC
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- Image High & low Power Scope
- Clean Room (10 Class)
2
Probe Test
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- Electrical Testing
- Program Development
3
AVI
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4
Inking
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- Wafer Reject Dies Inking
- Clean Bake Oven
5
QVI
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- Image High & low Power Scope
- Sampling or All
6
Packing
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- Barcode Labeling
- Packing Machine
7
QPI
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- Packing & Sheet Inspection
8
Ship
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9
Final Test Process
Incoming
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- TCP, COF
- 35mm, 48mm, 70mm
1
Final Test
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- Electrical Testing
- Program Development
2
Visual Inspection
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- All Inspection
- Splicing
- Auto Winder
3
QVI
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- Visual & Sheet Inspection
- Sampling 50Units/Lots
- Auto Winder
4
Packing
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- Barcode Labeling
- Packing Machine
5
Ship
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6