January 28, What s illuminator? INTER ACTION CORPORATION. Copyright Inter Action Corp All rights reserved.

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1 What s illuminator? INTER ACTION CORPORATION

2 In digital cameras, camcorders and cameraequipped mobile phones CCD and C-MOS semiconductor imagers function as a retina. CCD and C-MOS imagers convert images seen through a camera lens into electrical signals. At Semiconductor factories, illuminators generate light used to test CCD and C-MOS imagers. Digital camera CCD

3 The Structure of a CCD/C-MOS Imager The surface of a CCD/C- MOS imager is covered with a grid of tiny picture elements (pixels) that convert light into electrical signals. A three million pixel imager, for example, would have three million of these elements on its surface.

4 Chemical vs. Digital Cameras Conventional single-reflex camera Digital single-reflex camera Digital compact camera Aperture Aperture Lens Shutter Lens Shutter Exposed film must be developed Stores digitally encoded information Chemical film Optical semi-conductor devices (CCD)

5 Capturing modules and Camera CCD/C-MOS imagers Digital camera CCD CCD/C-MOS imager cameras

6 The Problem With CCD/C-MOS Imagers Any imperfection in a CCD/C-MOS imager picture element (shown in red above) appears as a blank space in a picture.

7 Standard Semiconductor Testing Inspection of finished silicon wafers Testers and probers Tester Prober Pre-shipment inspections Testers and handlers Tester Handler

8 Semiconductor Imager Testing Inspections of finished silicon wafers Testers, probers and illuminators Illuminator Pre-shipment inspections Testers, handlers and illuminators Tester Prober Illuminator Tester Handler

9 Major Users Domestic semiconductor manufactures Sony, Matsushita, Toshiba, Sharp, Fuji Film, Canon, Fujitsu, Mitsubishi Electric, Seiko-Epson, Sanyo, others Overseas semiconductor manufacturers Intel, Atmel, Philips, Conexant, NS, Samsung, HyNEX, testing firms in Taiwan, others

10 Applications of Semiconductor Imagers PDA Notebook PC Mobile phone Wristwatch camera CCD/C-MOS camera modules Digital still camera Automotive camera CCD/C-MOS image sensors Digital video camera Surveillance camera Facsimile scanner Copier Fingerprint/iris ID

11 Camera-Equipped Mobile Phones Camera-Equipped Mobile Phones Close-up of camera CCD/C-MOS imager camera modules

12 Automotive Cameras Rear-view monitors Visibility with CCD camera Blind corner monitors Visibility from driver s seat Visibility with CCD camera Driving support systems CCD camera monitors lane indicators, sounds warning to alert driver as needed

13 Future Applications for Automotive Cameras As a replacement for mirrors Rear-view images can be shown on a display. As an adjustment device for air bags Adjusts strength of passenger seat air bag according to size of occupant As a device to prevent drivers from falling asleep

14 Growth in Shipments of Digital Cameras Digital camera shipments Unit: thousand units Total units shipped Monthly avg. Change Pct Jan.-Dec. 5, Jan.-Dec. 10, % 2001 Jan.-Dec. 14,753 1, % 2002 Jan.-Nov. 21,972 1, % Source: Camera & Imaging Products Association 2,500 2,000 1,500 1, Shipments from January to July ,800 1,600 1,400 1,200 1,

15 Digital Camera Shipments by Region Unit: thousand units Japan Europe N. America Otherexports Monthly Growth Share Monthly Growth Share Monthly Growth Share Monthly Growth sales rate sales rate sales rate sales rate Share 1999 Jan.-Dec % 96 23% % 25 6% 2000 Jan.-Dec % 29% % 22% % 42% % 7% 2001 Jan.-Dec % 33% % 23% % 36% % 8% 2002 Jan.-Nov % 26% % 28% % 35% % 12% Source: Camera & Imaging Products Association 2,000 1,500 1, Other exports North America Europe Japan

16 Recently Introduced Illuminator Products IA-OPTPATH Series 4-site parallel measurement Adjustable mechanism for F-number Illuminated area of 30mm x 30mm Light uniformity of +/-2% within one area and +/-1% between areas

17 Profile of the OPTPATH Series Optical Box Optical Head The CCD/CMOS imagers for testing are arranged in a square. Light produced by a halogen lamp in the optical box is adjusted to achieve uniformity, and then passed to the optical head via optical fibers. Light is divided within the optical head to produce four columns of light to illuminate the four devices at once. CCD/C-MOS imagers

18 Illuminators and Handlers The illuminator is located inside the handler. The handler aligns the semiconductors to be tested in a square. The tester sends instructions to perform the inspection, automatically separating units that pass and fail afterward. Connection to tester

19 Illuminator Control Screen Includes an accurate diagram of the illuminator Designed for maximum ease of use Generating strong support from users

20 Illuminates Four Semiconductor Devices at Once IA-OPT026W Large illuminated area accommodates four devices at once Simply change the design of the probe card to alter the alignment of the four devices as required January 28, 2003