CST Global Adds InP Epitaxial Overgrowth to Foundry Services

UK firm CST Global, a wholly-owned subsidiary of Sivers IMA Holdings AB, reported that it added an InP epitaxial overgrowth capability to its foundry production services. The company contends that the InP epitaxial overgrowth process is crucial for the production of high-volume, DFB lasers used in passive optical network (PON) markets worldwide. CST Global says that it successfully achieved this process after focused research and development efforts and the investment over the last year of about £500,000 (about USD$650,000).

CST Global Uses VPE to Deposit InP Layer

Using CST Global’s commercial, metal organic chemical vapor deposition (MOCVD) reactor, the process deposits an Indium Phosphide (InP) epitaxial layer via vapor-phase epitaxy (VPE).

“Over the past year, we have significantly increased the capacity of our factory in Blantyre, Scotland, to meet the high demand for DFB lasers used in PON markets,” Euan Livingston, VP Sales, and Marketing at CST Global said.

He further explained, “Adding InP epitaxial overgrowth to our foundry capability brings a critical production process in-house, where previously it was out-sourced. It not only mitigates production bottlenecks but also reduces DFB laser production times.”

Livingston acknowledged the contributions of both the development and operations teams at CST Global saying, “Epitaxial overgrowth is a challenging process to master. We recognize that the combined expertise of our development and operations teams has been essential to the successful introduction of this new process.”