Perhaps. If you find a legitimate PDF of the 4th edition (circa 1990s), it is fantastic for learning bipolar and basic CMOS logic. But if you are applying for a job at a modern fab working on 5nm nodes, the old edition will teach you the theory, but not the practice.
Pro Tip: Search for the 6th Edition (Published 2008) if you must go digital. It covers copper interconnects and shallow trench isolation, which are still used today. The 7th edition adds more on MEMS and nanotech. microchip fabrication peter van zant pdf
Most books teach individual steps (oxidation, diffusion, etc.) in isolation. Van Zant teaches integration—how to layer 20+ masks to build a CMOS transistor. He includes real-world yield management and statistical process control (SPC). Perhaps
One of Van Zant’s most famous chapters deals with contamination. He famously illustrated that a single human hair (approx. 75 microns thick) is equivalent to a skyscraper sitting on a microscopic circuit line. The PDF versions of his book are heavily searched for the cleanroom classification tables (Class 1, Class 10, ISO standards). CMP to remove overburden.
If you buy the hardcopy (or legal Kindle version) and want a personal PDF for annotation:
Example: Dual-damascene copper process with SiO2 interlayer dielectric and TaN barrier, CMP to remove overburden.