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Outputs (75)

Potential Uses of Embedded RFID in Appliance Identification (2006)
Journal Article
McWilliam, R., & Purvis, A. (2006). Potential Uses of Embedded RFID in Appliance Identification. International appliance manufacturing, 10, 100-107

Radio Frequency Identification (RFID) has become a pervasive technology for the purpose of tracking goods through the supply chain. It is possible to adapt this radio technology such that remote identification is possible using the electrical power c... Read More about Potential Uses of Embedded RFID in Appliance Identification.

Photolithography on grossly non-planar substrates (2005)
Presentation / Conference Contribution
Williams, G., McWilliam, R., Maiden, A., Purvis, A., Ivey, P., & Seed, N. (2005, June). Photolithography on grossly non-planar substrates. Presented at Proceedings of 7th IEEE CPMT Conference on High Density Microsystem Design, Packaging and Failure Analysis., Shanghai, China

Within the electronics industry, photolithography is the primary technique by which patterns are transferred from mask to substrate. The substrates are either semiconductor wafers or printed circuit boards, both of which are nominally flat. The growt... Read More about Photolithography on grossly non-planar substrates.

Nonplanar photolithography with computer-generated holograms (2005)
Journal Article
Maiden, A., McWilliam, R., Purvis, A., Johnson, S., Williams, G., Seed, N., & Ivey, P. (2005). Nonplanar photolithography with computer-generated holograms. Optics Letters, 30(11), 1300-1302. https://doi.org/10.1364/ol.30.001300

We outline a method for accomplishing photolithography on grossly nonplanar substrates. First we compute an approximation of the diffraction pattern that will produce the desired light-intensity distribution on the substrate to be patterned. This pat... Read More about Nonplanar photolithography with computer-generated holograms.

Non-Planar Interconnect (2005)
Journal Article
Williams, G., Seed, N., Purvis, A., Maiden, A., McWilliam, R., Ivey, P., & Johnson, S. (2005). Non-Planar Interconnect. Circuit World, 31(2), 10-14. https://doi.org/10.1108/03056120510571798

Purpose – This paper describes a method for patterning fine line interconnections over non-planar surfaces and introduces the idea of using holographic masks for more challenging geometries. Design/methodology/approach – A photolithographic method fo... Read More about Non-Planar Interconnect.

Holographic Lithography (2004)
Patent
Purvis, A., McWilliam, R., Seed, N., Williams, G., Ivey, P., Maiden, A., & Johnson, S. Holographic Lithography. WO2006021818

Method of generating a holographic diffraction pattern and a holographic lithography system are disclosed, the method comprising the steps of: defining at least one geometrical shape; generating at least one line segment to represent the at least one... Read More about Holographic Lithography.

Characterisation of Bluetooth Carrier Frequency Errors (2003)
Presentation / Conference Contribution
Robinson, C., & Purvis, A. (2003, June). Characterisation of Bluetooth Carrier Frequency Errors. Presented at Proceedings of the 9th IEEE International Mixed Signal Testing Workshop (IMSTW’03), Seville, Spain

Bluetooth, the short range wireless communications standard, operates in the unlicensed ISM frequency band at 2.4 GHz using Gaussian Frequency Shift Keying (GFSK) modulation. After a brief introduction to GFSK and FM demodulation, the paper describes... Read More about Characterisation of Bluetooth Carrier Frequency Errors.

The Development of a Digital Switched Mode Power Supply Controller and Controller Design Tool (2003)
Presentation / Conference Contribution
Maiden, A., Purvis, A., & Kinghorn, M. (2003, March). The Development of a Digital Switched Mode Power Supply Controller and Controller Design Tool. Presented at Proc International Signal Processing Conference, Dallas, Texas

This paper presents a software tool for the autonomous design of digital Switched-Mode Power Supply compensators based on step -response. The program uses a Genetic Algorithm (GA) to locate an optimal controller configuration within a search space. S... Read More about The Development of a Digital Switched Mode Power Supply Controller and Controller Design Tool.

A VXIBus Based Bluetooth Radio Test Set For IC Validation and Debug (2002)
Presentation / Conference Contribution
Robinson, C., & Purvis, A. (2002, June). A VXIBus Based Bluetooth Radio Test Set For IC Validation and Debug. Presented at Proceedings of the 8th IEEE International Mixed Signal Testing Workshop (IMSTW’02), Montreux, Switzerland