Museum Curator’s Note: Hans Camenzind is founder and current president of Array Design Inc, a Bay Area company that is active in the design of analog integrated circuits. A recent Array Design project, described by Hans, has been the design of an integrated circuit for another company making laptop “touchpad” devices; according to Hans, his company can produce ICs of this complexity (200 transistors, or so) in about six weeks, from start of contract to first production. This is an impressive result, and is reflective of the tremendous progress in this technology (and also in Hans’s high level of experience), since the early 1970s, when the 555 project required an entire year. Hans has recently developed a new comprehensive text, which provides an excellent discussion of IC design, as is currently practiced, but also including historical background which has been experienced firsthand by Hans over an active 40 year design career. He describes the book as follows: Designing Analog Chips “A comprehensive introduction to CMOS and bipolar analog IC design. The book presumes no prior knowledge of linear design, making it comprehensible to engineers with a non-analog background. The emphasis is on practical design, covering the entire field with hundreds of examples to explain the choices. Concepts are presented following the history of their discovery.” I highly recommend this new publication, which is downloadable from Hans’s website: http://www.arraydesign.com/