Fast coupled noise estimation for crosstalk avoidance in the MCG multichip module autorouter

Hameenanttila, T.; Carothers, J.D.; Li, Donghui

doi:10.1109/92.532036

Cited by 16 publications

(7 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A crosstalk-avoidance procedure can be incorporated, which uses closed-form estimates of coupled noise along with lookup tables of electrical parameters in order to estimate crosstalk noise quickly during routing [8]. The crosstalk avoidance procedure used in conjunction with MCG represents an improvement over that of IBM's approach [1], since the lookup tables obviate prerouting simulation of the package and because noise waveform timing is considered.…”

Section: B Mcg Routing Algorithmmentioning

confidence: 99%

“…The crosstalk avoidance procedure used in conjunction with MCG represents an improvement over that of IBM's approach [1], since the lookup tables obviate prerouting simulation of the package and because noise waveform timing is considered. For details on implementation and results of incorporating crosstalk avoidance in MCG see [8].…”

Section: B Mcg Routing Algorithmmentioning

confidence: 99%

“…An efficient method has been derived to allow candidate routes to be considered simultaneously for compatibility, rather than incrementally extending routes or routing one net at a time, as in many other techniques. Therefore, it is possible to incorporate accurate models for determining the potential for crosstalk and delay problems during the routing process [8].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The MCG autorouter for multichip modules

Carothers

Li²

1999

IEEE Trans. Circuits Syst. I

Self Cite

View full text Add to dashboard Cite

A multilayer, multichip module (MCM) router, called MCG, is introduced for x-y routing. An efficient method has been derived to allow candidate routes for the nets to be considered simultaneously for compatibility, rather than incrementally extending routes or routing one net at a time, as in many other techniques, and thus allowing incorporation of accurate models for determining the potential for crosstalk and delay problems during the routing process. In comparisons with other routers on industrial benchmarks, the MCG router has shown substantial improvement in routing density, number of layers, number of vias, and total interconnect length over routers such as V4R and SLICE. Our test results show up to 18% improvement in via count and up to 33% improvement in the required number of routing layers for these examples over V4R. One of the benchmarks presented contains 37 VHSIC gate arrays, over 7000 nets, and over 14 000 pins (pads).

show abstract

Section: B Mcg Routing Algorithmmentioning

confidence: 99%

Section: B Mcg Routing Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The MCG autorouter for multichip modules

Carothers

Li²

1999

IEEE Trans. Circuits Syst. I

Self Cite

View full text Add to dashboard Cite

show abstract

“…This is due mainly to the increasing role of RC delays but also to the presence of crosstalk glitches [1]. These parasitic effects may eventually prevent full advantage being taken of the advance in modern semiconductor manufacturing techniques.…”

Section: Introductionmentioning

confidence: 98%

On the measurement of crosstalk in integrated circuits

Caignet

Dhia

Sicard

2000

IEEE Trans. VLSI Syst.

View full text Add to dashboard Cite

This paper describes a specific technique for measuring and characterizing the time-domain aspect of the crosstalk effect based on a sampling technique. It includes the description of the circuit implementation in 0.7-m technology and the measurements of the crosstalk between metallization tracks within the chip, with a 10-ps resolution and 10-mV precision. A comparison between the measurements and analog simulations based on a distributed RC model is also included. The key advantages of this technique are that it is totally integrated, fully static, and adaptable to any CMOS technology.

show abstract

“…Their heuristic algorithm optimizes the alignment of pseudo pins but does not consider crosstalk. There are some studies on controlling crosstalk noise in detailed or channel routing (e.g., [l] [2] [7] [8] [9] [12] [16]), or in global routing (e.g., [19] [20]). Although the crosstalk noise estimations during detailed routing can be accurate, the freedom to control crosstalk noise is restricted.…”

Section: Introductionmentioning

confidence: 99%

Pseudo pin assignment with crosstalk noise control

Chang¹,

Cong²

2000

Proceedings of the 2000 International Symposium on Physical Design

View full text Add to dashboard Cite

This paper presents a new pseudo pin assignment (PPA) algorithm with crosstalk noise control in multi-layer gridless general-area routing. We propose a two-step approach that considers obstacles and minimizes the estimated number of vias under crosstalk noise constraints. Without crosstalk noise control in PPA, the average noise after detailed routing of our test cases is 0.13-0.22 VDD with up to 8% of nets larger than 0.3 VD~. However, if the noise constraint of each net is set to 0.3 VDD in PPA, the average noise reduces 15%-31% to 0.11-0.15 VDD with no crosstalk noise violations. Even without rip-up and reroute, the detailed routing completion rate is 95%-99% and the ratio of vias to nets is only 0.7-1.2.

show abstract

Fast coupled noise estimation for crosstalk avoidance in the MCG multichip module autorouter

Cited by 16 publications

References 22 publications

The MCG autorouter for multichip modules

The MCG autorouter for multichip modules

On the measurement of crosstalk in integrated circuits

Pseudo pin assignment with crosstalk noise control

Contact Info

Product

Resources

About