Two primerless encapsulants from Dow Corning should bring greater adhesion and stress relief to electronic applications, along with a fast, room-temperature cure. Both deliver an uncharacteristic toughness and peel strength for a silicone dielectric gel material, the company reports. Dow Corning(reg) 3-4220 Firm Gel is one part blue and one yellow, facilitating visual inspection for complete mixing. Dow Corning 3-4219 Firm Gel, a clear version, contains no dye or UV indicator, and is designed to help prevent radio-frequency interference in applications involving wireless communications. Dow Corning Corp. (M), Customer Service Department, P.O. Box 0994, Midland, MI 48686-0994, FAX (517) 496-4586.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
Microchip recently released the 3D TouchPad, the first USB PC Peripheral device that couples 2D multi-touch input with 3D air gesture technology. The company seeks the help of developers to further enhance the capabilities of the technology.
To give engineers a better idea of the range of resins and polymers available as alternatives to other materials, this Technology Roundup presents several articles on engineering plastics that can do the job.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.