September 1998
Volume 4, Number 3

Features

New ultrasound therapies emerge
As well as being used for diagnostic imaging and treating kidney stones, ultrasound is now being used to perform bloodless surgery, to stop internal bleeding, and to control the delivery of drugs to targeted sites in the body – Jennifer Ouellette

Magnets, markets, and magic cylinders
The new rare-earth permanent magnets are far superior to any of their predecessors and have paved the way for a host of new products, including those that make use of the uniform field inside Halbach cylinders – Michael Coey and Denis Weaire

News

Biosensors: Microelectronics marries biology
Biological sensors combine the exquisite sensitivity of the biological molecule with the processing power of modern microelectronics and optoelectronics to offer new analytical tools – Jennifer Ouellette

Get ready for a wireless world
The next stage beyond the cell phone is wireless data communication. Silicon foundries now turn out chips with built-in wireless capability, ready to create a revolution in the office, on the manufacturing floor, in the construction industry, and in science and technology research – David Pope

Briefs - David Pope
Advancing battery technology; Microvalves on the move; Construction kit for MEMSBow-tie resonance; Shallow wafer defects; Update

Departments

Editorial/Letters

Technology
Silicon micromechanics takes on lightwave networks – David Bishop and Randy Giles

Cutting accelerometers down to size – Dan Handman

Hidden Physicists
Diverse careers

Forum
Asian Flu strikes Silicon Valley – Matt Richter

Careers
Don't stress over interview dress – Lynne Waymon

Corporate Associates
A tradition of discovery – Angela Putney

New Products