While Hastings wrote in the era of manual drawing, his rules for device orientation and spacing are the logic behind the PCells used today.
Perhaps the most valuable aspect of Hastings’ text is his treatment of matching and symmetry. In analog design, the performance of differential pairs and current mirrors hinges on the precise matching of transistors. Hastings elevates this requirement into a high art form. He details the nuances of common-centroid layouts and interdigitated fingers, explaining how to neutralize the effects of process gradients—variations in doping or oxide thickness that sweep across the die. This section alone transforms the book from a textbook into a practical field guide. It provides the engineer with the tools to diagnose offset voltages and gain errors, skills that are essential for "porting" a design concept into a reliable physical product. the art of analog layout by alan hastings portable
A portable version of this text means you can check a "matching rule" while standing at a microscope, verifying a layout in real-time. While Hastings wrote in the era of manual
The result was a fully interactive, portable classroom that could be accessed on any device, at any time. Hastings elevates this requirement into a high art form
It was a sunny day in Silicon Valley, and Alan Hastings, a seasoned expert in analog design, was packing his bags for a trip to a remote island. He had been invited to give a series of lectures on the art of analog layout, and he wanted to make sure he had all the necessary materials with him.
If you’ve worked in IC design for more than a week, you’ve heard the name: The Art of Analog Layout by Alan Hastings. It’s the bible of physical design for analog and mixed-signal chips.