Apparatuses of the mustang family: A new page in laser therapy

Translated from Metallurg, Vol. 39, No. 6, p. 45, June, 1995.     

Si/SiGe epitaxial-base transistors. I. Materials, physics, andcircuits

A detailed review of SiGe epitaxial base technology is presented, which chronicles the progression of research from materials deposition through device and integration demonstrations, culminating in the first SiGe integrated circuit application. In part I of this paper, the requirements and processes for high-quality SiGe film preparation are discussed, with emphasis on fundamental principles. A detailed overview of SiGe HBT device design and implications for circuit applications is then presented     

What is health promotion?

With change abounding in Canada's health care system, nurses must redefine their roles. One role is in health promotion, a field where nurses have created a unique identity for themselves. But before advocating, the concept must be fully understood.