Is your chip hot? Need more bandwidth? eSilicon has complete high-bandwidth memory (HBM2) solutions from PHY IP, ASIC, interposer and package design through manufacturing. Take advantage of HBM2 integrated with 2.5D technology to address your power and bandwidth requirements.
With the increasing number of Internet-connected consumer devices, manufacturing systems, business tools, customer service appliances, medical equipment, agricultural sensors, and other devices, the difference between required and available bandwidth will become huge. eSilicon has been studying and refining methods to help close this gap since 2011.
High-bandwidth memory achieves higher bandwidth while using less power in a substantially smaller form factor than DDR4, GDDR5 or hybrid memory cube (HMC). This technology addresses the bandwidth gap with 256 Gbytes/sec data rate per memory with up to four HBM stacks in a package. HBM has eight independent channels using a total of 1024 input and output pins. This density of signals, coupled with interposer design, requires careful design and thorough timing analysis.
eSilicon’s 2.5D/HBM2 experience includes IP and systems in package (SiP) design; volume manufacturing, assembly and test; and complete 2.5D/HBM ecosystem management.
The HBM2 PHY has been developed to JEDEC JESD235A specification. It has been developed on Samsung 14LPP, TSMC 16FF+ GL, and TSMC 28HPC technologies. It supports up to 256Gbytes/sec bandwidth with 8x128b channels at 2Gbps per I/O.
The HBM PHY is DFI 4.0 compliant with several controller-independent features such as:
|Data Rate||0.5-2Gbps per I/O|
|Channels||8 independent channels|
|I/O per Channel||212|
|Channel Density||Up to 32Gbits|
|Data I/O||128/channel, 1024/HBM interface including pseudo channel|
|ECC||ECC and parity support in conjunction with the controller. (ECC on DM signals)|
|Data Byte Invert (DBI)||DBI supported in conjunction with the controller|
|Data Mask (DM)||DM supported in conjunction with the controller|
|RAS Support||RAS supported in conjunction with the controller|
|Cycles/Command||1 cycle (exception is Row Activate at 2 cycles) per JEDEC specification|
|Interoperability Testing||Supports any third-party DFI 4.0-compliant memory controller vendor|
|IEEE1500 Support||Separate IEEE1500 port for direct access to the memory stack and PHY|
|Impedance Calibration Sharing||Self-contained calibration per PHY instance across all eight channels|
|Related Signal Pass-Through||Provides ability for signals not related to PHY to be passed through|
|Power-Down Modes||IDDQ MODE and dynamic power-down of receivers during WRITE|
|Temperature Range (Tj)||-40C to 125C|
The I/O supports up to 2Gbps DDR operation across a 4mm interposer channel.
Since 2011, eSilicon has been conducting research to develop products and processes that deliver a complete HBM solution. eSilicon offers a unique and powerful advantage, delivering the next step in integration, cost reduction, and system power management while increasing and integrating system bandwidth via HBM. Our end-to-end HBM solution includes 2.5D ecosystem management, the PHY, ASIC design, SiP design, manufacturing, assembly and test. Through our partnership with Northwest Logic, we offer a complete HBM interface including both the controller and the PHY, which is silicon validated in an integrated system that includes the interposer and DRAM stack.
Silicon interposers provide an optimal integration platform:
This silicon interposer technology platform is based on several enabling process modules and unit process capabilities. eSilicon can develop your customized interposers.
eSilicon interposer design and implementation capabilities:
|Product Description||V0.5 Front-End Release||V1.0 Back-End Release||Shuttle Tapeout||Final Release|
|TSMC 28HPC HBM2 PHY||Available||Available||Available||Available|
|Samsung 14LPP HBM2 PHY||Available||Available||Available||Available|
|TSMC 16FF+GL HBM2 PHY||Available||Available||June 2017||Nov 2017|
Please contact eSilicon at firstname.lastname@example.org for more information, silicon quality results, white papers or data sheets. Our HBM2 webinars and white paper, co-authored with SK Hynix, Amkor Technology, Northwest Logic and Avery Design Systems, are available at our Start Your HBM2/2.5D Design Today web page.