The Story Behind the LOGENEST LAMBDA Series for Semiconductor Manufacturing Equipment

 LOGENEST LAMBDA is a long-running best-seller with a history of more than 40 years.

　It was first adopted in high-end professional office printers and flagship DSLR cameras. The product proved its performance in demanding conditions—supporting the durability requirements of printers and delivering reliable operation in extreme cold, including environments such as Mount Everest and Antarctica—earning strong recognition in the field.

　Around 2000, LOGENEST LAMBDA was introduced for use in vacuum equipment. It later expanded into manufacturing equipment for flat panel displays (around 2010) and, from around 2017, into semiconductor manufacturing equipment.

　In these industries, lubricants must perform not only across wide temperature ranges but also under vacuum. As semiconductor processes become increasingly advanced, operating conditions continue to grow more severe, making long-term stability and low outgassing especially important.

　To meet these requirements, LOGENEST LAMBDA has been continuously refined as a grease designed for harsh temperature and vacuum environments, leading to the development of a new series. As vacuum-based industries—such as semiconductor manufacturing and space-related applications—continue to expand, the importance of reliable lubrication in vacuum environments will only increase. The LOGENEST LAMBDA series will continue to evolve, with a focus on even greater performance and reliability.

Product Name	Base Oil	Thickener	Penetration Grade (Representative Value)	Characteristics
LOGENEST LAMBDA AEP-4	PFPE	PTFE	288	A specialty fluorinated grease designed to withstand use in vacuum environments. A range of grades is available to suit different vacuum levels.
LOGENEST LAMBDA ZLVP	PFPE	PTFE	256
LOGENEST LAMBDA TKM-03	PFPE	PTFE	272