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Pinhole array camera for integrated circuits.

P A Newman¹, V E Rible

¹U. S. Army Electronics Command,Fort Monmouth, New Jersey, USA.

|January 6, 2010

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A novel pinhole camera system offers a new method for creating multiple integrated circuit images. This system achieves high image quality and precise mask registration, improving upon traditional step-and-repeat methods.

Area of Science:

Optics and Photonics
Microfabrication Technology
Semiconductor Manufacturing

Background:

Current methods for producing multiple integrated circuit images, such as step-and-repeat cameras, face challenges in achieving high image quality and precise registration.
The demand for higher resolution and accuracy in integrated circuit (IC) manufacturing necessitates advanced imaging techniques.

Purpose of the Study:

To design, fabricate, and test a novel pinhole camera system for efficient and accurate multiple image production in integrated circuit fabrication.
To provide an alternative to the conventional step-and-repeat camera method, enhancing precision and image quality.

Main Methods:

Development of a pinhole camera featuring an array of precisely positioned, uniform diameter pinholes.
Integration of a vacuum back system to securely hold the film or plate during exposure.

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Testing the camera's capability to produce multiple, high-resolution images with accurate registration.

Main Results:

The designed pinhole camera successfully produced multiple images for integrated circuits.
The system demonstrated the capability to achieve precise registration between all masks in a set.
The arrangement allows for the creation of working masks with fine features, such as lines of 12.5 microm width.

Conclusions:

The novel pinhole camera design presents a viable and improved alternative to existing methods for integrated circuit mass production.
The system's ability to ensure high image quality and precise registration is critical for advanced semiconductor manufacturing.
Further development could lead to enhanced efficiency and resolution in microelectronic fabrication processes.