Phison Electronics Corporation
Company typePublic
TPEx: 8299
IndustrySolid-state drives
FoundedNovember 2000; 23 years ago (2000-11)
Key people
Khein-Seng Pua (Board Chairman, CEO)
Aw Yong Chee Kong (President)
ProductsNAND flash memory
Flash memory controllers
Phison SSD controller

Phison Electronics Corporation (Chinese: 群聯電子; pinyin: Qúnlián Diànzǐ) is a Taiwanese public electronics company that primarily designs, manufactures and sells controllers for NAND flash memory chips.[1] These are integrated into flash-based products such as USB flash drives, memory cards, and solid-state drives (SSDs).[2]

Phison is a member of the Open NAND Flash Interface Working Group (ONFI), which aims to standardize the hardware interface to NAND flash chips.


Phison was founded in 2000 by Datuk Pua Khein Seng and four others.[2][3]

Phison claims to have produced the earliest single-chip USB flash removable disk, dubbed a "pen drive."[3]

In early October 2014, security researchers Adam Caudill and Brandon Wilson publicly released source code to a firmware attack against Phison USB controller ICs.[4] This code implements the BadUSB exploit described in July 2014 at the Black Hat Briefings conference.

In August 2019, Phison announced that they would be releasing PS-50 series chips, e.g., PS5018-E18, that are designed to support PCIe 4.0 NVMe (non-volatile memory express) solid-state drives (SSDs). With such technology, the chips built on the NVMe SSDs have read and write speed of up to 7,000 MBs per second.[5]

In late 2020, Phison started shipping their E18 for high-end NVMe SSDs.[6]

In January 2021, Phison announced that they were planning to introduce a pair of USB flash drive controllers for high-end portable SSDs, designed to compete against current solutions that combine a USB to NVMe bridge chip with a standard NVMe SSD controller.[7] Phison also released a new entry-level DRAM-less NVMe SSD controller in 2021. For portable SSDs, Phison introduced the U17 and U18 controllers. For NVMe SSDs, Phison introduced the E21T controller in 2021, their latest DRAM-less NVMe controller. This is a follow-up to the E19T controller, which had seen very little use in retail consumer SSDs but has actually been outselling their high-end E16 PCIe 4.0 controller due to strong demand from OEMs.[6]

In January 2022, Phison introduced the E26 SSD controller, with higher transfer speeds than previous controllers.[8][9]

In April 2022, Phison announced a long term partnership with data storage company Seagate to develop and distribute enterprise NVMe SSDs.[10][11]

See also


  1. ^ "Phison Electronics Corp. Profile". Reuters. Retrieved 2022-04-06.
  2. ^ a b Jia Teng, Liew (2021-11-10). "Is the grass greener in Taiwan for chip designers?". The Edge Markets. Retrieved 2022-03-26.
  3. ^ a b Fong, Fernando (2021-11-02). "Here's How The Malaysian USB-Inventor Got In Trouble In Taiwan". The Rakyat Post. Retrieved 2022-03-26.
  4. ^ "Wired: The Unpatchable Malware That Infects USBs Is Now on the Loose". Wired. 2 October 2014.
  5. ^ "Phison's next-gen SSD controller will boost NVMe SSD speeds even higher". KitGuru. Retrieved August 9, 2019.
  6. ^ a b Tallis, Billy. "Phison at CES 2021: New USB SSD Controllers, Adds E21T For Low-End NVMe". Retrieved 2021-03-03.
  7. ^ Tallis, Billy (January 14, 2021). "Phison at CES 2021: New USB SSD Controllers, Adds E21T For Low-End NVMe". AnandTech.
  8. ^ Wilson, Jason R. (2022-01-04). "Phison showcases next-gen PCIe Gen 5.0 E26 SSD controller, offering speeds beyond 10 GB/s". Wccftech. Retrieved 2022-04-27.
  9. ^ Dexter, Alan (2022-01-07). "Phison's next-gen PCIe 5 SSD controller is nearly twice as fast as the best PCIe 4 drives at 13.5 GB/s". PC Gamer. Retrieved 2022-04-27.
  10. ^ Mellor, Chris (2022-04-06). "Seagate and Phison get up close and SSD personal". Blocks and Files. Retrieved 2022-04-06.
  11. ^ Lilly, Paul (2022-04-06). "Seagate And Phison Partner To Dominate The Data Center With Next-Gen SSDs". HotHardware. Retrieved 2022-04-06.