YES (Yield Engineering Systems, Inc.) Acquires SPEC (Semiconductor Process Equipment Corp.)
Adds Wet Processing to its Expanding Portfolio of Surface & Material Enhancement Solutions

FREMONT, Calif. – Dec 21, 2021 – YES (Yield Engineering Systems, Inc.), a leading manufacturer of process equipment for semiconductor advanced packaging, life sciences and “More-than-Moore” applications, today announced that it has acquired SPEC (Semiconductor Process Equipment Corporation) of Valencia, California for an undisclosed amount. The companies had announced a strategic partnership agreement in June.

The purchase brings together two longtime, trusted semiconductor equipment suppliers with more than 70 years of industry experience between them. “YES and SPEC have many characteristics in common,” said Rama Alapati, CEO of YES. “Both of us have accumulated decades of technological expertise and have installed hundreds of systems in dozens of countries. We both take pride in our many repeat customers, and our excellent industry reputations. In acquiring SPEC, we feel YES is now better-positioned to meet the growing demands of current and future customers in emerging markets such as HPC, AI/ML, 5G, autonomous driving, augmented reality, and other computationally intensive applications.”

“The SPEC product line, which includes cleaning, etching, stripping and plating equipment, complements our portfolio well, and will allow YES to extend our offerings into the wet processing market,” added Rezwan Lateef, President of YES. “We welcome SPEC’s employees to the YES team, and we look forward to developing a variety of new products together to address and anticipate customer needs.”

“SPEC is very pleased to join forces with YES. With global demand for semiconductors increasing dramatically, this merger could not have come at a better time for both companies. We are excited to help YES open new markets and opportunities for our proven wet-process technologies going forward,” said Kevin McGillivray, co-founder of SPEC.

In addition to augmenting its personnel resources with the SPEC staff, YES will gain more than 40,000 square feet of manufacturing, assembly, and cleanroom space in Valencia, as well as SPEC’s regional offices around the world.

About YES

YES (Yield Engineering Systems, Inc.) is a preferred provider of high-tech, cost-effective equipment for transforming surfaces, materials, and interfaces. The company’s product lines include vacuum cure systems, chemical vapor deposition (CVD) systems, and plasma etching tools used for precise surface modification and thin-film coating of semiconductor wafers, semiconductor and MEMS devices, biosensors and medical substrates. With YES, customers ranging from startups to Fortune 100 companies can create and volume-produce products in a wide range of markets, including Advanced Packaging, MEMS, Augmented Reality/Virtual Reality and Life Sciences. YES is headquartered in Fremont, California, with a growing presence globally. For more information, please visit

About SPEC

SPEC (Semiconductor Process Equipment Corporation) is a highly experienced supplier of surface conditioning wet process equipment.​​​ Since 1986, SPEC has designed and manufactured wafer-level and device-level wet process equipment for acid and solvent surface modification (cleaning, etching, stripping), electroplating, and electroless (chemical) plating for all industries requiring a high level of process cleanliness. SPEC’s products are used for polysilicon chip, chunk, and ingot cleaning; crucible cleaning, cavity cleaning for particle accelerators, chemical mixing and delivery, hard drive component cleaning, and quartzware cleaning. SPEC systems are engineered to match the unique requirements of the end user. For more information, please visit

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