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Acer Swift 3 OLED Review || A Truly Powerful Thin and Light Machine




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Congress To Begin 'Delhi Nyay Yatra' Today Against AAP Government's Policies

The Congress will begin a month-long 'Delhi Nyay Yatra' from Rajghat on Friday to corner the Aam Aadmi Party government on various issues affecting the city.




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24% Deaths In Delhi Caused Due To Infectious, Parasitic Diseases: Report

A Delhi government report has attributed nearly 24 per cent of the total about 89,000 deaths registered in the national capital in 2023 to infectious and parasitic diseases like cholera, diarrhoea, tuberculosis and hepatitis B, among others.




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Cops Raid Bengaluru Couple After Users Spot Ganja Plant In Garden Post

A Bengaluru couple found themselves in legal trouble after they posted videos of their balcony garden on Facebook. The posts included images of plants later identified as ganja.




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6,791 Power Connections Provided In Delhi On Lt Governor's Intervention

Power discoms have provided electricity connections to 6,791 of the 10,802 applicants living in Delhi's unauthorised colonies following Lieutenant Governor V K Saxena's intervention, the Raj Niwas said on Tuesday.




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Poor Man's Banker To Leading Bangladesh: Muhammad Yunus's Journey

Bangladesh is pinning its hopes on one of the nation's most acclaimed intellectuals to bring stability to a country scarred by coups and political upheaval.




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Hezbollah's Hassan Nasrallah: The Most Powerful Man In Lebanon

Backed by Iran and hated by Israel, Hezbollah chief Hassan Nasrallah is Lebanon's most powerful man. He enjoys cult status among his Shiite supporters and holds sway over the country's institutions.




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Shigeru Ishiba: Political Troublemaker Set To Take Charge As Japan's New PM

Japan's next prime minister, Shigeru Ishiba, says he reads three books a day and would rather do that than mingle with the ruling party colleagues who picked him as their new leader today




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All About Kamala Harris: Life, Family, Wealth And Her Impact On US Politics

Kamala Devi Harris was born on October 20, 1964, in Oakland, California, to immigrant parents.





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Ricky Ponting hits back at Gautam Gambhir, calls him 'prickly character' - The Times of India

  1. Ricky Ponting hits back at Gautam Gambhir, calls him 'prickly character'  The Times of India
  2. Ricky Ponting Fires Back At Gautam Gambhir After India Coach's Press Conference Remarks  NDTV Sports
  3. A fired-up Virat Kohli is Australia's worry after Ricky Ponting's 'bad move'  The Times of India
  4. Gambhir a prickly character, never took dig at Kohli: Ponting  The Hindu
  5. Border-Gavaskar Trophy: Why Gautam Gambhir comes across as abrasive at times  The Indian Express









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UK University Tells Rich Students To Not Be A 'Snob' To Poorer Classmates

A guidance has been issued to the wealthier students with a list of actions they need to follow to create an inclusive environment.




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Bengaluru Landlord Asks Rs 5 Lakh Deposit for Rs 40,000 Rent: "Extortion"

The post has sparked a heated debate about Bengaluru's rising rental prices and the need for a cap on deposits.




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Mumbai, Delhi, Bengaluru, Hyderabad Airports Won’t Be Sold To Private Investors: Privatization Plan Put On Hold

The government is temporarily freezing the proposed sale of AAI’s stakes in the private joint ventures operating the airports at Delhi, Mumbai, Hyderabad and Bangalore. Reason The finance ministry has decided to defer for now the sale of the AAI’s residual stakes in these four joint ventures, the reason being that the valuations could be […]




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Family Members Of Foreign Workers In Canada Now Allowed To Work: Spouses, Working-Age Children Will Get Work Permits!

After its decision to strengthen visa infrastructure in Delhi and Chandigarh, Canada has now announced that family members of temporary international workers will also be allowed to work in the country. Sean Fraser, Canada’s Minister of Immigration, Refugees, and Citizenship, recently informed the media that his agency will be granting work permits to relatives of […]




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Apple & Samsung Exported Rs 40,000 Crore Of Smartphones From India: Apple Can Beat Samsung Very Soon!

Apple is in fast pace catching up with Samsung in India as far as smartphone exports from the country are concerned.  Apple was not far behind at $2.2 billion at the same time Samsung’s smartphone exports in value stood at around $2.8 billion for the April-October period. Apple Scaling Up Exports In India It is […]




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5 Reasons Why You Need To Read This CSR in India Report

This new Corporate Social Responsibility (CSR) Practices in India Report 2020 is a must read




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Report on CSR in Indian Banks 2020

Report on Corporate Social Responsibility (CSR) in Indian BFSI sector.




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Hitman Wanted By Police for Attacking Twin Brothers

[SAPS] Office of the Provincial Commissioner KwaZulu-Natal




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Five Suspects Appearing in Kariega Magistrate's Court for Possession of Cycads

[SAPS] - Five suspects are appearing in the Kariega Magistrate's Court today, after they were arrested and found in possession of cycads with an estimated value of R1 Million on Friday 08 November 2024.




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Food Borne Poisoning Claims 23 Lives

[SAnews.gov.za] Twenty-three people in Gauteng have died as a result of food borne-related poisoning after consuming food from spaza shops.




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Gauteng Police to Raid Spaza Shops in Food Safety Crackdown - South African News Briefs - November 11, 2024

[allAfrica]




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A South African Politician Ends Up Homeless in Nthikeng Mohlele's Spicy New Novel - but Is It Any Good?

[The Conversation Africa] Despite the flaws in the latest novel by South African writer Nthikeng Mohlele, there is something alluring about Revolutionaries' House. It is Mohlele's most political novel, and the parallels drawn between love and politics - and their pitfalls - are intriguing.




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Constitutional Court Shutdown Over Water Cuts Is an Embarrassing Low-Point for Collapsing Joburg Metro

[DA] It is a national embarrassment that the inability of the City of Johannesburg to supply water to its residents, business and public sector offices, has now led to the shutdown of operations at the Constitutional Court, on Constitution Hill in Braamfontein.




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DDR5 12.8Gbps MRDIMM IP: Powering the Future of AI, HPC, and Data Centers

The demand for higher-performance computing is greater than ever. Cutting-edge applications in artificial intelligence (AI), big data analytics, and databases require high-speed memory systems to handle the ever-increasing volumes and complexities of data. Advancements in cloud computing and machine virtualization are stretching the limits of current capabilities. AI applications hosted in the cloud rely on fast access and reduced latency in memory systems, which is amplified by an increasing number of CPU and GPU cores.

Introducing the DDR5 Multiplexed Rank DIMM (MRDIMM), the next-generation memory module technology designed to meet the needs of high-performance computing (HPC) and AI in cloud applications. By leveraging existing DDR5 DRAM memory devices, MRDIMM modules not only double the DRAM data rate but also maintain the RAS capabilities of the industry-proven RDIMM modules, setting a new precedent for memory module performance.

Let’s compare RDIMM and MRDIMM modules using the same DRAM parts. Today, high-speed production DDR5 RDIMM modules run at 5600Mbps. Those modules use DDR5 DRAM parts, which also run at 5600Mbps. An MRDIMM module using the same DDR5 5600Mbps DRAM parts will run at a blazing 11.2Gbps.

One key metric for best-in-class performance, low bit error rate (BER), and ease of adoption is the eye diagram. The eye diagram illustrates at-speed system margin and accurately represents DDR system quality when captured with a pseudo-random binary sequence (PRBS)-like pattern. The diagram below illustrates Cadence’s 3nm silicon write eye diagram for DDR5 MRDIMM IP running at 12.8Gbps.

Cadence 3nm DDR5 MRDIMM 12.8Gbps test chip write eye diagram, design kit is available today

The eye diagram is captured using a PRBS-like pattern, incorporating a package and system board representative of a typical MRDIMM channel. Using PRBS-like patterns is crucial for capturing accurate eye diagrams. Repetitive clock-like data patterns create deceptively “open eyes” that do not reflect the real system performance. Effects like intersymbol interference, simultaneous switching, reflections, and crosstalk are not accurately reflected in the eye diagrams for parallel interfaces like DDR using non-random data streams. Relying on improperly captured eye diagrams inevitably leads to a significantly worse real system BER than conveyed by that eye diagram.

Doubling the DDR5 RDIMM data rate is challenging. Achieving high performance while optimizing for area and power requires multiple design techniques. Feed-forward equalization (FFE), decision feedback equalization (DFE), continuous-time linear equalization (CTLE), and T-coils are required to reach 12.8Gbps MRDIMM data rates in multi-channel systems. Building a production-worthy 12.8Gbps DDR5 MRDIMM IP requires engineering expertise that comes from many generations of memory interface design and production experience. Cadence has developed this expertise through multiple DDR5/4, LPDDR5X/5, and GDDR6 designs in different technology nodes and foundries. For instance, Cadence’s GDDR6 IP is available in three foundries and ten process nodes, with mass production at speeds exceeding 22Gbps.

For your next project, consider DDR5 12.8Gbps MRDIMM, a technology that not only doubles the bandwidth of DDR5 RDIMM but also promises rapid proliferation into next-generation AI, data center, HPC, and enterprise applications. With its cutting-edge capabilities, the Cadence DDR5 12.8Gbps MRDIMM IP is ready to power the future of computing.




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How to create multiple shapes of same port in innovus?

LEF allows the same port with multiple shape definitions. Does anybody know if innovus can create multiple duplicate shapes associated with the same port? Assume they are connected outside the block with perfect timing synchronization. Thank you!




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How to see placement reasons of cells? How to highlight timing start/end points?

I am working with innovus on a huge design. I found some cells are placed far away from both timing start points and timing end points. I suspect some other timing paths may be near-critical that results in this sub-optimal cell placement; or innovus has to place the cell far away due to congestion of placement or routing.

Is there a way to see why innovus places/moves the cell during place_opt_design or ccopt_design?

Also, is there a way to highlight all timing start points or timing end points that go through a cell? There may be thousands of timing paths through this cell. I tried using report_timing and timing debugger but it is very painful to click the highlight box and highlight the timing paths one by one.

Thank you for your help!




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Tempus ECO initial setup summary not matching timing report results

We are currently setting up the Tempus flow and have ran into some mismatched data regarding ECO and timing reports. I generated a timing report before running ECO and saw six total setup violations. When running opt_signoff -setup, the initial setup summary that was printed in the shell only showed one violation. I can see that violation from the initial setup summary in my pre-ECO timing report and it is not the worst path. Upon further investigation, I forced the tool to try to fix setup on one of the other five violations from the timing report using the opt_signoff_select_setup_endpoints attribute and the tool said that the endpoint had positive slack and would be ignored.

Has anyone experienced something like this before?




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Innovus post CTS Timing Analysis issue

While performing the timing analysis after post-CTS. We are getting warnings on all input ports defined in our design.

 **WARN: (IMPESI-3095):  Net: 'CLK' has no receivers. SI analysis is not performed.
**WARN: (IMPESI-3095):  Net: 'RESET' has no receivers. SI analysis is not performed.
**WARN: (IMPESI-3095):  Net: 'UART_BAUD_SWITCHES_2' has no receivers. SI analysis is not performed.
**WARN: (IMPESI-3095):  Net: 'UART_BAUD_SWITCHES_1' has no receivers. SI analysis is not performed.

We've checked our design netlist, and all the required connections are present for the input ports through pads. We are using Innovus version: v21.12 




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How to import different input combination to the same circuit to get max, min, and average delay, power dissipation and area

Hi everyone. 

I'm very a new cadence user. I'm not good at using it and quite lost in finding a way to get the results. With the topic, I would like to ask you for some suggestions to improve my cadence skills.

I have some digital decision logic. Some are combinational logic, some are sequential logic that I would like to import or generate random input combination to the inputs of my decision logic to get the maximum, minimum, and average delay power dissipation and area when feeding the different input combination.

My logic has 8-bit, 16-bit, and 32-bit input. The imported data tends to be decimal numbers.

I would like to ask you:

- which tool(s) are the most appropriate to import and feed the different combination to my decision logic?

- which tool is the most appropriate to synthesis with different number of input? - I have used Genus Synthesis Solution so far. However with my skill right now I can only let Genus synthesize my Verilog code one setup at a time. I'm not sure if I there is anyway I can feed a lot of input at a time and get those results (min, max, average of delay, power dissipation and area)

- which language or scripts I should pick up to use and achieve these results?

-where can I find information to solve my problem? which information shall I look for?

Thank you so much for your time!!

Best Regards




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Refer instances and vias to technology library during importing

Hi,

My query is regarding importing of layout.

After importing, we see that the imported transistor instances and vias are all referring to the library in which they are imported, instead of referring to the technology library.

Please let me know how we can refer them to the technology library.

Will surely provide more details if my query is unclear.

Thanks,

Mallikarjun.




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DRC warning when use abConvertPolygonToPath.ils code

Hi All,

I'm using a code (abConvertPolygonToPath.ils) that I found in other posts to convert a rect object to a path object inside a pcell code, but when I try to run a DRC, the layout export fails due to a warning message, here is the log message

*WARNING* (DB-270001): Pcell evaluation for 18A_asaavedr/lay_mesh_BM0_BM4_3p6_3p6/layout has the following error(s):

*WARNING* (DB-270002): ("eval" 0 t nil ("*Error* eval: undefined function" abConvertPolygonToPath))

 

ERROR (XOASIS-231): Pcell evaluation failed for '18A_asaavedr/lay_mesh_BM0_BM4_3p6_3p6/layout' because the Pcell SKILL code contains either a syntax error or an unsupported XOasis function. Check the standard output or the Virtuoso log file for more information. Cadence recommends correcting the Pcell SKILL code to resolve the issue. However, to ignore these errors and continue the translation, you may use the 'ignorePcellEvalFail' option.

INFO (XOASIS-282): Translation Failed. '1' error(s) and '3' warning(s) found.

And when compile the code I get the following message:

*WARNING* defgeneric function already defined - abConvertPolygonToPath

I will aprreciate any help in how to waive this error, or fix it.

Thank you




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μWaveRiders: Thermal Analysis for RF Power Applications

Thermal analysis with the Cadence Celsius Thermal Solver integrated within the AWR Microwave Office circuit simulator gives designers an understanding of device operating temperatures related to power dissipation. That temperature information can be introduced into an electrothermal model to predict the impact on RF performance.(read more)




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μWaveRiders: Setting Up a Successful AWR Design Environment Design - Layout and Component Libraries

When starting a new design, it's important to take the time to consider design recommendations that prevent problems that can arise later in the design cycle. This two-part compilation of guidelines for starting a new design is the result of years of Cadence AWR Design Environment platform Support experience with designs. Pre-design decisions for user interface, simulation, layout, and library configuration lay the groundwork for a successful and efficient AWR design. This blog, part 2, covers the layout and component library considerations designers should note prior to starting a design.(read more)




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Designing a 30MHz to 1000MHz 10W GaN HEMT Power Amplifier

By David Vye, Senior Product Marketing Manager, AWR, Cadence When designing multi-octave high-power amplifiers, it is a challenge to achieve both broadband gain and power matching using a combination of lumped and distributed techniques. One approach...(read more)




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Unlock Your RF Engineering Potential with a Cadence AWR Free Academic Trial!

Are you ready to revolutionize your RF design experience? Look no further! Cadence AWR software is your gateway to mastering the intricacies of Radio Frequency (RF) circuit design, and now, you can explore its power with our exclusive Free Academic T...(read more)




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read from text file with two values and represent that as voltage signals on two different port a and b

i want to read from text file two values  on two ports , i wrote  that  code, and i have that error that shown in the image below . and also the data in text file is shown as screenshot

 


module read_file (a,b);

electrical a,b;
integer in_file_0,data_value, valid, count0,int_value;


analog begin
@(initial_step) begin
in_file_0 = $fopen("/home/hh1667/ee610/my_library/read_file/data2.txt","r");

valid = $fscanf (in_file_0, "%b,%b" ,int_value,count0);
end

V(a) <+ int_value;
V(b) <+ count0;

end

endmodule




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How to generate "Sheet Name" column in a pin report?

Hi everyone, 

Is there any method to generate "Sheet" column for a pin report like table below? The column "Name.Pin" & "Signal" can be generated easily, but I have no idea to generate the column of "Sheet Name".

The software using here are Allegro Design Entry HDL, OrCAD Capture and Allegro PCB Editor. Can these 3 software generate "Sheet Name" data?

Name.Pin Signal Sheet Name
C1_1.1 N301321 SITE1_1
C1_1.2 GND_ANA_1 SITE1_1
C1_2.1 N180243 SITE2_1
C1_2.2 GND_ANA_2 SITE2_1

Thank you. 




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Unmapped points

Hi ,

 I am using conformal v23.2 for LEC checking b/w netlist vs Netlist. I am getting 8 not mapped points(z) in revised but when i check in mapping manager it showing 0 Not mapped points and showing this 8 not mapped points in extra unmapped section z(f) snps_scan_out_6 .How to resolve this issue Pls help

regards,




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which tools support Linting for early stages of Digital Design flow?

I am trying to understand the Linting process. I know that mainly JasperGold is the tool for this purpose. Though I think JasperGold is more suited for later stages of the design. As a RTL Design Engineer, I want to make sure that if another tool has the capability of doing Linting earlier in the flow. for example, does Xcelium, Genus or Confomal support linting. I have seen some contradicting information online regarding this topic, though I can't find anything related to Linting on any of these tools.

Thanks




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Xcelium PowerPlayBack App and Dynamic Power Analysis

Learn how Xcelium PowerPlayback App enables the massively parallel Xcelium replay of waveforms for glitch-accurate power estimation of multi-billion gate SoC designs.(read more)




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10 Most Viewed Posts in Cadence Community Forum

Community engagement is a dynamic concept that does not adhere to a singular, universal approach. Its various forms, methods, and objectives can vary significantly depending on the specific context, goals, and desired outcomes. Whether you seek assis...(read more)




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Using Voltus IC Power Integrity to Overcome 3D-IC Design Challenges

Power network design and analysis of 3D-ICs is a major challenge due to the complex nature and large size of the power network. In addition, designers must deal with the complexity of routing power through the interposer, multiple dies, through-silicon vias (TSVs), and through-dielectric vias (TDVs).
Cadence’s Integrity 3D-IC Platform and Voltus IC Power Integrity Solution provide a fully integrated solution for early planning and analysis of 3D-IC power networks, 3D-IC chip-centric power integrity signoff, and hierarchical methods that significantly improve capacity and performance of power integrity (PI) signoff while maintaining a very high level of accuracy at signoff. This blog summarizes the typical design challenges faced by today’s 3D-IC designers, as discussed in our recent webinar, “Addressing 3D-IC Power Integrity Design Challenges.” Please click here to view the full webinar.

Major Trends in Advanced Chip Design

From chips to chiplets, stacked die, 3D-ICs, and more, three major trends are impacting advanced semiconductor packaging design. The first is heterogenous integration, which we define as a disaggregated approach to designing systems on chip (SoCs) from multiple chiplets. This approach is similar to system-in-package (SiP) design, except that instead of integrating multiple bare die  including 3D stacking – on a single substrate, multiple IPs are integrated in the form of chiplets on a single substrate.

The second major trend is around new silicon manufacturing techniques that leverage silicon vias (TSVs) and high-density fanout RDL. These advancements mean that silicon is becoming a more attractive material for packaging, especially when high bandwidth and form factor become key attributes in the end design. This brings new design and verification challenges to most packaging engineers who typically work with organic and ceramic substrate materials.

Finally, on the ecosystem side, all the large semiconductor foundries now offer their own versions of advanced packaging. This brings new ways of supporting design teams with technologies like reference flows and PDKs, concepts that have typically been lacking in the packaging community. Cadence has worked with many of the leading foundries and outsourced semiconductor assembly and test facilities (OSATs) to develop multi-chip(let) packaging reference flows and package assembly design kits. The downside is that, with the time restrictions designers are under today, there isn’t enough time to simulate the details of these flows and PDKs further.

For those who must make the best electro/thermal/physical decisions to achieve the best power/performance/area/cost (PPAC), factors can include accurate die size estimations, thermal feasibility, die-to-die interconnect planning, interposer planning (silicon/organic), front-to-front and front-to-back (F2F/F2B) planning, layer stack and electromigration/ IR drop (EMIR)/TSV planning, IO bandwidth feasibility, and system-level architecture selection.

3D-IC Power Network Design and Analysis

The key to success in 3D-IC design is early power integrity planning and analysis. Cadence’s Integrity 3D-IC platform is a high-capacity 3D-IC platform that enables 3D design planning, implementation, and system analysis in a single, unified cockpit. Cadence’s Voltus IC Power Integrity Solution is a comprehensive full chip electromigration, IR drop, and power analysis solution. With its fully distributed architecture and hierarchical analysis capabilities, Voltus provides very fast analysis and has the capacity to handle the largest designs in the industry. Typically, 3D-IC PDN design and analysis is performed in four phases, as shown in Figure 1.

Phase 1 - Perform early power delivery network (PDN) exploration with each fabric’s PDN cascaded in system PI with early circuit models.

Phase 2 – Plan 3D-IC PDNs in Cadence’s Integrity 3D-IC platform, including micro bumps, TSVs, and through dielectric vias (TDVs), power grid synthesis for dies, and early rail analysis and optimization.

Phase 3 – Perform full chip-centric signoff in Voltus with detailed die, interposer, and package models, including chip die models, while keeping some dies flat.

Phase 4 – Perform full system-level signoff with Cadence’s Sigrity SystemPI using detailed extracted package models from Sigrity XtractIM, board models from Sigrity PowerSI or Clarity 3D Solver, interposer models from XtractIM or Voltus, and chip power models from Voltus.

Figure 1. 3D-IC PDN design and analysis phases

3D-IC Chip-Centric Signoff

The integration of Integrity 3D-IC and Voltus enables chip-centric early analysis and signoff. Figure 2 and Figure 3 highlight the chip centric early PI optimization and signoff flows. In early analysis, the on-chip power networks are synthesized, and the micro bumps and TSVs can be placed and optimized. In the signoff stage, all the detailed design data is used for power analysis, and detailed models are extracted and used for package, interposer, and on-die power networks.


Figure 2. Early chip-centric PI analysis and optimization flow

Figure 3. Chip-centric 3D-IC PI signoff

Hierarchical 3D-IC PI Analysis

To improve the capacity and performance of 3D-IC PI analysis, Voltus enables hierarchical analysis using chiplet models. Chiplet models can be reduced chip models in spice format or more accurate xPGV models which are highly accurate proprietary models generated by Voltus. With xPGV models, the hierarchical PI analysis has almost the same accuracy as flat analysis but offers 10X or higher benefit in runtime and memory requirements.

Conclusion

This blog has highlighted the major design trends enabled by advanced 3D packaging and the design challenges arising from these advancements. The design of power delivery networks is one of these major challenges. We have discussed Cadence solutions to overcome this PI challenge. To learn more, view our recent webinar, "Addressing 3D-IC Power Integrity Design Challenges" and visit the Voltus web page.




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BoardSurfers: Optimizing Designs with PCB Editor-Topology Workbench Flow

When it comes to system integration, PCB designers need to collaborate with the signal analysis or integrity team to run pre-route or post-route analysis and modify constraints, floorplan, or topology based on the results. Allegro PCB Edito...(read more)




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Multiple touch points for bond wires on a die pin

Does anyone know whether it is possible to have multiple contact points for a bond wire on a large die pad? Note: This is different from adding multiple wires which I will also be doing. I need to add multiple bond connections to the same large die pad for redundancy connections to each pad for each wire. I have a large die pad which I need to have 5 wires with each wire having 3 bond connections to the same die pad.