| Piezo Printhead Technology | |
| Course - GBP 795, Euro 995 | |
| Thursday 10th - Friday 11th July, 2008 imperial College, London, England |
Conference registration Location, directions and accommodation |
| COURSE FOCUS | |
| With drop on demand piezo printheads becoming the key imaging technology for a wide new range of products and manufacturing processes, it is becoming vital to understand how these critical components work, and how to recognise when things are not as they should be even if you are just a user of OEM printheads. Here Steve Temple will take you through the basics of piezo materials and their properties, how they are used as actuators within printheads, other aspects of printhead design, printhead operation, crosstalk, reliability and lifetime issues, and the special considerations for deposition and ink jet as a manufacturing process. |
|
| COURSE LEADER | |
| Stephen Temple Templetech Impington, Cambridge, UK Steve joined Cambridge Consultants Limited (CCL) in 1968 fresh out of Oxford University, with the intention of becoming a successful inventor. At that time, there was much talk of start-ups and of a vision of Cambridge as a centre of a new hi-tech revolution. Steve failed to join this bandwagon until 1990 when Xaar was founded. In the meantime, he worked on and produced inventions for a huge diversity of industries and technologies: textiles (carpets and weaving); printing; new materials; space-sails and parachutes. Printing was a recurring theme during this time, and in 1987 together with others, he invented the Xaar technology. As soon as this became a spin-off prospect, he joined Xaar and was instrumental in its evolution from four people to a listed company of 300+ with sites in Cambridge, Huntingdon, Sweden, Japan and the US. In 2007 he left Xaar with a view to starting a new venture and is currently exploring the potential for Rapid Manufacture using Ink Jet technology. |
![]() |
| Course outline | |
| Thursday 10th July 2008 10:00 - 11:00 am Registration 11:00 am Course begins Piezo materials • Fundamentals - Petrovskite crystal - Axes and modes • Uses of piezo material • Manufacturing methods - Bulk sintering - Tape cast - Deposition • Material properties - k, d, e - Curie temperature - Soft versus hard - Activation modes • Direct mode - Shear mode • Problem areas and trade-offs - Gearing - Direct mode, multi-layers, bending, shear - Fatigue • Alternatives - Thermal, capacitative, magnetic 1:00 - 2:00 pm Lunch Piezo printheads • Different piezo printhead architectures - Roof mode (bender) - Piston - Moving wall • Theory of operation - Roof mode - Moving wall - Squeeze mode - Acoustic • Manufacturing methods - Individual pieces - Separate in situ - Monolithic - Thin film • Channel structure manufacture - Moulding - MEMs - Sawing 5:30 pm Adjournment 6:00 - 7:30 pm Reception |
Friday 11th July 2008 |