US 11,899,976 B2
Solid state storage device and write control method with different write modes therof
Liang-You Lin, Taipei (TW); Yu-Chuan Peng, Taipei (TW); Ya-Ping Pan, Taipei (TW); and Po-Yen Chen, Taipei (TW)
Assigned to SOLID STATE STORAGE TECHNOLOGY CORPORATION, Taipei (TW)
Filed by SOLID STATE STORAGE TECHNOLOGY CORPORATION, Taipei (TW)
Filed on Feb. 23, 2022, as Appl. No. 17/678,067.
Claims priority of application No. 110147917 (TW), filed on Dec. 21, 2021.
Prior Publication US 2023/0195384 A1, Jun. 22, 2023
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0659 (2013.01) [G06F 3/0604 (2013.01); G06F 3/0679 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A solid state storage device connected with a host, the solid state storage device comprising:
a control circuit connected with the host;
a volatile memory connected with the control circuit; and
a non-volatile memory connected with the control circuit, wherein the non-volatile memory is divided into a first area and a second area,
wherein after the host issues a write command and a write data, the control circuit monitors a data amount of the write data continuously stored into the non-volatile memory,
wherein before the data amount of the write data continuously stored into the non-volatile memory reaches a predetermined amount, the write data is stored into plural buffering blocks of the first area in a first write mode, wherein after the data amount of the write data continuously stored into the non-volatile memory reaches the predetermined amount, the write data is stored into plural storing blocks of the second area in a second write mode,
wherein a write speed in the first write mode is faster than a write speed in the second write mode,
wherein when a total storage amount of the first area reaches a threshold amount, the control circuit performs a garbage collection on the first area, wherein the predetermined amount is smaller than the threshold amount.