Case Study: a leading semiconductor manufacturing company achieves 50–70% less manual work with Legacyleap's VB6 to .NET modernization

How Legacyleap Modernized Semiconductor Software from VB6 to a Scalable .NET Framework

The client, a leading semiconductor manufacturing company, faced the challenge of modernizing six mission-critical VB6 applications that controlled precision manufacturing hardware. Their fragmented, post-merger software ecosystem was constrained by tightly coupled COM objects, desktop-only interfaces, and the critical need to preserve exact timing for stepper and servo motors without halting production. They engaged Legacyleap for a structured modernization strategy.

Legacyleap implemented a phased modernization, decoupling COM objects into microservices and rewriting the components in .NET. They engineered real-time synchronization to preserve hardware precision, standardized the fragmented architecture, and migrated the UI to a web-based framework. As a result, Legacyleap helped the client achieve a 50-70% reduction in manual processes and a 40% improvement in application performance while maintaining all critical hardware operations.