Samsung Starts Volume Production 2.4 Gbps 8GB HBM2 Stacks

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Samsung has started production of its second generation HBM2, dubbed Aquabolt.

In comparison with the first generation HBM2 chip from Samsung, Aquabolt can deliver a 50 per cent improvement, with both operating at 1.2V.

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An official from Samsung Electronics said, "With the latest mass production, Samsung Electronics is the only company in the industry that supplies the HBM2 DRAM chip". "We will continue to reinforce our command of the DRAM market by assuring a stable supply of HBM2 worldwide, in accordance with the timing of anticipated next-generation system launches by our customers". Known as Aquabolt, this premium memory solution is the direct successor of the first HBM2, known as Flarebolt.

The new solution, Aquabolt, which is the company's 2nd-generation 8GB HBM2 DRAM to deliver a 2.4 gigabits-per-second (Gbps) data transfer speed per pin at 1.2 volt, can process 307GB of data, which is equivalent to 61 full HD 5GB movies, in one second. The 8GB HBM2 single packages have 8 x 8Gb HBM2 dies that Samsung vertically interconnects with over 5000 TSVs (Through Silicon Via's) per die. A single Aquabolt package offers 307 Gbps data bandwidth, which is 9.6 times faster than an 8GB GDDR5 chip that provides 32 Gbps; using four Aquabolts will leave you with a system capable of 1.2 Tbps bandwidth, according to Samsung. This is why new memory technologies have been and continue to be developed, such as High Bandwidth Memory, HBM, with HBM2 being used in some devices today. Samsung has also increased the number of thermal bumps between HBM2 dies, enabling better thermal control and added an additional protective layer at the bottom, increasing the overall package strength.

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