Embedded Solutions

SI/PI/Thermal Analysis for IC / Package / Board

SI/PI Analysis & Measurements

Power Integrity


Signal Integrity

SI / PI : Optimize Your Design For Maximum Efficiency

SI/PI Analysis & Measurements

Signal Integrity (SI)

To ensure the accuracy of designs on the first attempt, high-frequency and fast-switching interconnects necessitate comprehensive analysis of signal (SI) and power integrity (PI). Caliber possesses extensive expertise in SI theory and simulation tools to examine a range of issues, including impedance mismatch-related reflections, crosstalk, signal attenuation, and PDN noise. The analysis is performed at the IC package/substrate and board levels in both pre- and post-layout stages.

Post Layout Analysis

The routed board is simulated to identify any potential issues such as reflection, overshoot/undershoot, crosstalk, attenuation, EMI, and PDN. Based on the simulation results, a post layout report is created which includes recommendations for topology modification, termination schemes, and layout adjustments to achieve optimal signal and power integrity.

High Speed Channel Modeling

We specialize in modeling a wide range of products including IC packages, HDI PCBs, Back-planes, Add-in cards, Via breakouts, connectors, socket/pogo pins, probes, and cables. Our team utilizes advanced 3D tools from Ansys & Sigrity to create highly accurate models.

We offer end-to-end/system-level channel modeling and optimization to enhance the overall performance. Our expertise also includes SERDES design & simulations, where we are skilled in tuning and utilizing the FFE, CTLE, and DFE parameters in IBIS-AMI model-based simulations.

In terms of speed, we have achieved a maximum of 112Gbps (PAM4) in production level and 116Gbps (PAM4) in prototype.

PCB/Package - Signal Integrity Analysis

We offer a range of signal integrity modelling and analysis services for electronic components and systems, including:

IC packages, HDI PCBs, backplanes, add-in cards, via breakouts, and related components

Analysis of single-ended and differential crosstalk

Investigation of signal attenuation caused by IR-drop, skin-effect, and dielectric loss

Channel analysis for serial communication, including eye diagram analysis

System level simulations based on IBIS/IBIS-AMI models

Clock analysis, both for common and source synchronous designs

Timing analysis for DDR memory interfaces

S-parameter analysis, covering return/insertion loss, NEXT and FEXT, and mixed mode channels (both common and differential)

Analysis of coupling effects, for both single-ended and differential signals

Co-design services, addressing IC/package/board interactions and optimization.

Power Integrity Analysis (PI)

We are performing all of the following tasks as part of our Power Integrity Analysis (PI):

Analyzing and mitigating simultaneous switching noise (SSN)

Minimizing voltage drop or IR-drop

Analyzing the impedance profile of the power distribution network

Estimating transient noise

Extracting parasitic RLGC values

Optimizing the estimation and placement of de-coupling capacitors

By conducting a thorough PI analysis, we can identify potential issues and optimize the design of the power delivery network, ultimately leading to improved system performance, reliability, and reduced time-to-market.

EMI/EMC Analysis

Net - wise radiated EMI

EMC analysis based on FCC, CISPR and VCCI requirement

Interfacing Technologies

We have extensive simulation capabilities and experience in various technologies such as GDDR, DDR 3 & 4, LPDDR4/x, UFS & eMMC, PCIe Gen 3, 4 and 5, MIPI, CSI, HDMI, USB 3.1 & 3.2, SATA, C-phy, SERDES, GbE, SGMII, QSFP/SFP optical modules, Firefly connectors, 112 Gbps channel simulation, and up to 100GHz RF channels. With our expertise in these areas, we are able to provide top-notch simulation services to our clients.

Analysis Tools Expertise

Cadence Sigrity

Keysight ADS

Siemens Hyperlynx

Ansys Siwave

Ansys HFSS


Advanced Tools

SYS942 - Clarity IC package extraction suite

SIGR302 - Sigrity power SI II

SYS103 - Celcius power DC

Thermal Analysis

As electronic components and interconnects become increasingly dense due to shrinking PCB and IC package sizes, the rise in power rating creates thermal issues that can compromise the reliability and performance of these systems. Accurate thermal analysis is crucial to mitigate such risks, and ensure proper material selection and efficient power dissipation at the IC package, board, and system levels. To address these challenges, Caliber Interconnects employs advanced thermal analysis tools that anticipate interconnect performance factors and provide cost-effective solutions to overcome deep thermal effects, ensuring optimal electrical performance and reducing the risk of thermal failure. 

Parameters for Thermal Analysis

Local ambient temperature


Physical constraints

Component power dissipation

Component size

Packaging materials

Type of interconnections

Presence of thermal cooling system

Thermal conductivity

Power density of substrate, package, nearby components, and circuit board


Temperature distribution plots

Heat transfer plots (showing the amount of heat lost or gained)

Thermal gradient plots

Thermal fluxes plots

Thermal conductivity plots

Fusion current density plots