|
For Full-Text PDF, please login, if you are a member of IEICE,
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
|
A Voltage Scalable Advanced DFM RAM with Accelerated Screening for Low Power SoC Platform
Hiroki SHIMANO Fukashi MORISHITA Katsumi DOSAKA Kazutami ARIMOTO
Publication
IEICE TRANSACTIONS on Electronics
Vol.E90-C
No.10
pp.1927-1935 Publication Date: 2007/10/01 Online ISSN: 1745-1353
DOI: 10.1093/ietele/e90-c.10.1927 Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Section on VLSI Technology toward Frontiers of New Market) Category: Next-Generation Memory for SoC Keyword: DFM RAM, 2 cell/bit, low voltage scalability, screening test, SoC memory platform,
Full Text: PDF(1.2MB)>>
Summary:
The advanced-DFM (Design For Manufacturability) RAM provides the solution for the limitation of SRAM voltage scaling down and the countermeasure of the process fluctuations. The characteristics of this RAM are the voltage scalability (@0.6 V operation) with wide operating margin and the reliability of long data retention time. The memory cell consists of 2 Cell/bit with the complementary dynamic memory operation and has the 1 Cell/bit test mode for the accelerated screening against the marginal cells. The GND bitline pre-charge sensing scheme and SSW (Sense Synchronized Write) peripheral circuit technologies are also adopted for the low voltage and DFV (Dynamic Frequency and Voltage) controllable SoC which will be strongly required from the many kinds of applications. This RAM supports the DFM functions with both good cell/bit for advanced process technologies and the voltage scalable SoC memory platform.
|
|
|