DLideas Lithography

DLideas 6: Lithography

The DLideas series focuses on current developments in the world of DLP and emerging applications using the technology. In this video, DLi’s Justin Lemon discusses how DLP® Technology is being used in the field of Lithography – specifically Maskless Lithography, where structures like integrated-circuits are fabricated at a nanometer-scale size. DLP’s ability to project pre-determined mirror patterns onto photosensitive material eliminates the need for expensive, inflexible photomasks and is helping move the industry forward as a result. Learn more about lithography in the video below:

The DLideas series focuses on current developments in the world of DLP® and emerging applications using the technology. In this video, DLi’s Justin Lemon discusses how DLP® Technology is being used in the field of lithography – specifically maskless lithography, where structures like integrated-circuits are fabricated at a nanometer-scale size. DLP®’s ability to project predetermined mirror patterns onto photosensitive material eliminates the need for expensive, inflexible photomasks and is helping move the industry forward as a result.

Lithography, the process of printing from a plane surface on which the image to be printed is ink-receptive and the blank area is ink-repellent, is one of the fastest emerging applications using DLP® technology. Micro or nano-lithography refers specifically to the branch of nanotechnology concerned with the study and application of fabricating nanometer-scale structures.

With DLP® using digital micromirror devices, you can reflect a predetermined mirror pattern onto a photosensitive material called a photoresist. In this case, the DMD acts as a dynamic mask and the final pattern is created directly from a digital representation on a computer by controlling an electron beam as it scans across a resist coated substrate. This is often referred to as maskless lithography. In this method, the radiation used to expose a photoresist is not projected from, or transmitted through, a photomask. Instead, the radiation is focused to a narrow beam, then used to directly write the image into the photoresist one or more pixels at a time.

Examples of maskless lithography include digital exposure or direct imaging, printed circuit board patterning and manufacturing, flat panel displays, laser marking, computer-to-plate printing, solder masks, ball grip arrays, chipscale package, and real-time barcode marking.

Most lithography applications usually require a custom-produced hard photo mask to be manufactured, which is very time consuming, expensive, and limits functionality and flexibility. By using DMDs, you can directly expose a pattern onto the photoresist films without the need for any expensive photo masks. With DLP®, lithography patterns can also be dynamically changed on the fly through digital methods without having to physically change out the mask or print plates.

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About DLI

Digital Light Innovations (DLi) is regarded as the world leader in DLP® light exploration. We are a full service design and manufacturing company with extensive experience in creating unique DLP-based solutions for a broad range of applications. We are not only experts in DLP interface and electronic controller board design, but specialize in custom optics as well as prototype design and development.

Notably, DLi was the first to receive the DLP Authorized Design House designation from Texas Instruments (TI), and has partnered with TI to design and manufacture the electronic controller boards, firmware and software for the Explorer API and Control Software utilized by the best-selling DLP Discovery™ Development Kits and LightCrafter™ 6500/9000 EVMs.