Longsys DDR4 U-DIMM has passed KTI tests
SHENZHEN, China, Nov. 30, 2020 /PRNewswire/ -- Longsys has been exploring memory test technologies. In addition to introducing the independently developed test system based on 10nm ASIC, Longsys is also actively involved in cooperation with professional testing qualification institutions, in an effort to make breakthroughs in quality.
Furthermore, Longsys and KingTiger Technology ("KTI") have carried out a slew of exchange activities on memory technology and reached a strategic test framework agreement to improve memory test technologies and formulate relevant standards.
KTI, a world-renowned brand of memory test equipment, has specialized in the field of memory testing for over 30 years, and boasts complete core patented technologies. KTI operates under the philosophy of "equal emphasis on logic function testing and system application testing, and the application of industry standards and design specifications".
With the support of China Aerospace Science and Technology Corporation, the project of aviation-grade DRAM test equipment R&D center and test service center has been launched. It is dedicated to memory device testing qualification and failure mode analysis, as well as mass-produced memory quality screening services. Through a joint mechanism with major manufacturers, it will be developed into an authoritative agency for memory testing.
Specification
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System
KT-4MG+
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Testing Speed
3.2GHz
---
Testing Scan Rate
Full cell cover
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ATE Function Test
YES
---
Application Test
YES
---
Parameter Testing
I/O Timing/Voltage/IDD (DC/AC)
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Testing Function
Device Profiling
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Features of KTI test system
Recently, the FORESEE DDR4 U-DIMM samples that Longsys provided passed KTI's special test certification with the rating of "quality products".
Below are details of KTI test certification of Longsys memory products:
Test Authentication Test
Item Results
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Core Features comply with JEDEC Features comply with OEM design
parameter standards specifications
profiling
---
Idd Consistent with OEM
real- feature index
time
power
consumption
measurement
---
I/O DRAM valid access window
signal width and signal quality
quality are excellent
evaluation
---
ATE Test under more stringent
functional conditions PASS
test General parameter test PASS
---
Application General parameter test PASS Test under more stringent
test conditions PASS
---
High Test under more stringent
temperature conditions PASS
aging
test General parameter test PASS
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Features are above JEDEC
standards, strong
consistency of
particles, capable of
withstanding extreme
environments. Rated by
KTI as an excellent
Conclusion product.
---
Test items and test results
The testing has shown that memory product has exceptional performance in all terms of KTI's tests.
As a standard Longsys memory product, FORESEE DDR4 U-DIMM is equipped with Samsung DRAM particles. It is produced by a world-leading company using high-end PCB process materials (30u gold plating process for edge connectors), guaranteeing its high quality for industrial users.
DDR4 U-DIMM 8GB
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PN
FD4AU2666C8GSC
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Description
8GB 1Rx8 PC4-2666V-UA3
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MO
MO-309 AAxA
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# of PIN
DDR4 288PIN
---
Design
1Rank x8
---
Applicable
Design
File
PC4-UDIMM_RC_A3_R071_V301_20190918.brd
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DIMM
Organization
1 Gb x64
---
DRAM Die
SAM 1Xnm 8Gb x8
---
# of
Address
bits
row/
col
16/10
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# of
DRAM
*8
---
Speed
2666Mbps
---
tCK
0.75ns
---
CAS
Latency(CL)
19 nCK
---
CL-
tRCD-
tRP
19-19-19
---
tRCD
14.25 ns
---
tRP
14.25 ns
---
tRAS
32 ns
---
VDD/
VDDQ
1.2V/1.2V
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Specifications of FORESEE DDR4 U-DIMM
Based on internal and external test systems, Longsys will continue to be committed to quality improvement and building a sound storage ecosystem in China.
Going forward, Longsys will make diversified memory products available for KTI testing and certification and provide customers with more high-quality products.
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SOURCE Shenzhen Longsys Electronics Co. Ltd
