Official online bookstore of Caltech's Online Bookstore. Shop for your course materials and textbooks, sell your used books for cash & access your digital materials. Caltech Intermediate Form (CIF) is a file format for describing integrated circuits. CIF provides a limited set of graphics primitives that are useful for describing the two-dimensional shapes on the different layers of a chip. The format allows hierarchical description, which makes the representation filesbestnowsearchfilmsfirst.info of format: EDA file format. Jul 10, · Caltech Bookstore, Pasadena, California. 9 likes · 65 were here. Bookstore/5().