POLAR Si8000 2016 v16.0 Si8000 PCB Controlled Impedance Field Solver – for single and multiple dielectric PCBs TheSi8000m is a boundary element method field solver that builds on the familiar easy to use user interface in earlier Polar impedance design systems. The Si8000m adds enhanced modelling to predict the finished impedance of multiple dielectric PCB builds and also takes into account the local variations in dielectric constant on close spaced differential structures. The Si8000m assumes negligible insertion loss in the transmission line, should you wish to model insertion loss the Si9000e adds extensive insertion loss modeling capabilities The Si8000m links with Speedstack as Speedstack PCB. The XFE option provides crosshatch return path modelling for flex and flex-rigid PCBs Important information when updating from an early version Si8000m New more powerful Quicksolver Click to see built in impedance graphing What's new in the Si8000m? Projects option with Speedstack saves structure groups Copy / Paste structure parameters (Permits easy comparison of coated / non coated etc.) Crosshatch return path modelling Inbuilt sensitivity graphing Coarse and fine Impedance Goal seeking Model multiple dielectric PCBs 36 Single ended coplanar structures 36 Differential coplanar structures Link to PCB stackup Speedstack enhanced with Projects Si8000m Goal seek Detailed analysis in Microsoft Excel (Click picture for full screen) You can paste directly from Quick solver into Excel Si8000m Powerful impedance design system Impedance Goal seeking Model multiple dielectric PCBs Reduce time to market Graph production variations Single ended and differential Calculate the effect of resin rich areas Enhanced soldermask models 10 x Single ended structures 17 x Differential structures Si8000m – comprehensive modeling of over 100 structures Surface coating is often overlooked when modelling and the Si8000m models the resist thickness adjacent to above and between surface traces. This offers a much more elegant solution which can be tailored to the particular resist application method in use on your boards. The new Si8000m also extracts even and common mode impedance. (Even mode impedance is defined as the characteristic impedance of one side of a transmission line pair when both lines are driven by a signal of equal magnitude and polarity). It is becoming increasingly necessary to control these characteristics on high speed systems such as USB2.0 and LVDS. Field solving Impedance design system The Field Solvers in the Si8000m allow you accurately to graph impedance against various PCB parameters. The Si8000m Controlled Impedance Design System is a comprehensive controlled impedance design aid which can run stand alone as a Quicksolver, or the underlying engine can be applied directly though the optional Microsoft Excel user interface. The Si8000m allows you to produce impedance controlled boards with maximum yields. You can also use the Si8000 to reduce the number of prototype iterations before production ramp up. How? You have 2 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 Si8000m Excel spreadsheet Two: With the Si Excel option, 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 or build your own workbooks to model your process. 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 Single Ended Impedance Modeling Microstrip and Stripline Constructions All new field solvers employ Boundary Element Method BEM Model soldermask thickness between and adjacent to tracks Windows 2000 Windows XP Operation The Si8000m field solving impedance design system offers advanced field solving methods to model most circuit designs and is totally complementary to the CITS500s and RITS520a 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.