PORTLAND, Ore.--(BUSINESS WIRE)--Electro Scientific Industries, Inc. (Nasdaq: ESIO), a leading supplier of innovative laser-based manufacturing solutions for the microtechnology industry, today announced it has completed the acquisition of Topwin Optoelectronics, a fast-growing, innovative laser design and manufacturing systems company based in Wuhan, China. The Topwin acquisition significantly increases ESI’s ability to design, build, and sell into the China market. Topwin’s design and manufac