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PCB Controlled impedance design system
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For single and multiple dielectric PCBs please refer to the Si8000m PCB Controlled Impedance field solver or the Si9000e Transmission Line (lossy line) field solver for frequency dependent modelling

Graph sensitivity

Si6000b Goal seek
Quick Solver
Click picture for full screen
Now paste directly from Quick solver
into Excel (Version 2.00)


Powerful impedance design system
Impedance Goal seeking
Increase yields
Reduce time to market
Graph production variations

Field solving Impedance design system

The Field Solvers in the Si6000b allow you to accurately graph impedance against various PCB parameters. The Si6000b family of Field Solving Calculators builds on the success of the SI6000A.  Fourteen new coplanar differential models have grown the library to 39 structures at introduction, with more to come.  The new, intuitive Quick Solver can operate stand alone for rapid design modifications.

Have you ever needed to rapidly change a board stackup because of a shortage of material or needed to check the sensitivity of your design to normal production variations?

The Si6000 allows you to produce impedance controlled boards with maximum yields. You can also use the Si6000 to reduce the number of prototype iterations before production ramp up.

How? You have 3 powerful methods of using the field solvers.

One: A quick solving calculator lets you seek a target impedance by varying any one parameter, it could be line width, stack height or Er; you choose the variable and set the goal seek — you can even set realistic targets for your own production limits. Use the Edit / Copy to Excel to take values from the Quick solver and paste directly into the Si6000b Excel spreadsheet

Two: A package of Microsoft® Excel spreadsheets allows direct access to the field solvers; you can graph any parameter you choose using the pre-prepared Microsoft Excel workbooks.

Three: Si6000 Expert mode allows you to access the Polar field solvers directly through Microsoft Excel and build them into your own workbooks. This lets you feed production data back into the field solvers so you can close the loop on your process control.

With the ever increasing speeds of modern circuitry the demand for high quality controlled impedance printed circuit boards is continuing to grow. Today's PCBs are not just simple electrical interconnection devices, they are complex highly specified components in their own right. As the demand for controlled impedance PCBs has risen there has been a subsequent increase in requirement to verify these board designs prior to manufacture.

Differential Impedance PCB Structures
Coplanar Impedance Structures 
Single Ended Impedance Modeling
Microstrip and Stripline Constructions
Field Solving by Green's function and Method of Moments
Windows 95/98 and Windows NT / Windows 2000 Operation

The Si6000b field solving impedance design system is the latest addition to Polar's controlled impedance product range. If offers advanced field solving methods to model most circuit designs and is totally complementary to the CITS500s and RITS500s manual and automatic  Controlled Impedance Test Systems. CITS measurement systems have been in use with leading PCB manufactures throughout the world since 1991 and Polar is recognised as a world leader in production line impedance testing. Polar's innovative product portfolio includes the Toneohm 950 short circuit locator which is able to pinpoint the physical location of shorts between maximum copper layers.


Please take a look at the controlled impedance application note pages — you will gain maximum benefit from your Si6000 if you read these supporting notes. These brief  articles help you translate the precision output of the field solvers into practical real world PCBs with good production yields.

Single-Ended Surface Microstrip
Coated Surface Microstrip
Embedded Microstrip
Symmetric Stripline
Offset (Asymmetric) Stripline
Differential Surface Edge Coupled Microstrip
Coated Edge Coupled Microstrip
Embedded Edge Coupled Microstrip
Symmetric Edge Coupled Stripline
Offset Edge Coupled Stripline
Symmetric Broadside Coupled Stripline
Coplanar Surface Coplanar waveguide
Surface Coplanar strips
Coated Coplanar waveguide
Coated Coplanar strips
Coplanar waveguide
Embedded Coplanar waveguide
Embedded Coplanar strips
Offset Coplanar Stripline

All above structures with or without ground plane
Differential Coplanar
(Professional Edition)
Surface Coplanar waveguide
Surface Coplanar strips
Coated Coplanar waveguide
Coated Coplanar strips
Embedded Coplanar waveguide
Embedded Coplanar strips
Offset Coplanar Stripline

All above structures with or without ground plane
Other Structures Contact Polar Instruments
System requirements


IBM PC AT or compatible


Pentium or equivalent

Operating system

Microsoft Windows 95, Windows 98, Windows ME
Microsoft Windows NT, Windows 2000

System memory

128MB recommended

Hard disk space required

100MB (min.)

Video standard

SVGA (1024 x 768 min.)

CDROM drive


Microsoft compatible


Microsoft Excel 97 or later

Software Activation Parallel port dongle or USB key
Download a demonstration
Need more information?

Ken Taylor is your Signal Integrity Product Manager



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