IBM has signed a patent licence agreement with US-based technology licensing company Rambus to use its memory controller and serial link interface technologies.

Under the deal, Rambus, known for developing RDRAM, has authorised IBM to integrate Rambus memory controller and serial link interface technologies in products.

As per the agreement, Rambus will develop and deliver its memory interface design IP to enhance IBM systems and semiconductor offerings.

Details of the deal have not been disclosed by both the companies.

In October 2014, IBM signed a definite agreement with Globalfoundries to sell its commercial semiconductor technology business, including intellectual property and technologies related to IBM Microelectronics.

Following the deal, Globalfoundries also become IBM’s exclusive server processor semiconductor technology provider for 22 nanometer (nm), 14nm and 10nm semiconductors for the next 10 years.

Despite selling off its chip making unit, IBM is still developing CPUs for its Power servers and System z mainframes as well as investing in chip R&D.

The company is also planning to sell Power CPUs to 3rd-party server vendors, according to Seekingalpha.com.