Polar UK: Atlas Si – PCB insertion loss testing for PCB fabricators and Si engineers
Polar Atlas software enables PCB fabricators to test PCB transmission line losses in a tightly controlled production environment. Atlas employs mathematical processing techniques* to extract frequency dependent loss characteristics when used in conjunction with suitably designed test coupons and Atlas precision GHz probe assemblies.
Atlas packages interface either with industry standard Tektronix DSA8300 or DSA8200 oscilloscope TDRs. Fabricators can choose to add Atlas to their existing Tek DSA or alternatively Polar can supply a turnkey package.
Atlas supports multiple test methods including Delta-L, Delta-L 3 Line, SET2DIL (Single-Ended TDR to Differential Insertion Loss) for extraction of differential insertion loss and effective Er from a single ended test and suitably designed coupon, SET2SEIL method (Single-Ended TDR to Single-Ended Insertion Loss) for single ended insertion loss testing and SPP (Short Pulse Propagation) methods as called for in IPC-TM-650
Main Features
Atlas software is designed to assist PCB fabricators in the accurate and repeatable measurement of PCB transmission line losses in a PCB production environment.
Ergonomic probe housing:
Tracks system risetime and monitors the system bandwidth.
Delta-L – Atlas supports the Delta-L technique (v16_04 fully incorporates rev2p31 of Delta-L with the current settings and parameters) which uses long-line short-line measurement combined with innovative via de-embedding techniques, Delta-L provides a sound method for removing the via effects from differential (mixed mode) s-parameters when characterizing raw PCBs for insertion loss.
SET2DIL/SET2SEIL – Atlas test methods also include both the SET2DIL (Single-Ended TDR to Differential Insertion Loss) and SET2SEIL (Single-Ended TDR to Single-Ended Insertion Loss) test methods for extracting differential insertion loss from single ended measurements.
SPP – Short Pulse Propagation – SPP allows extraction of PCB electrical characteristics that impact signal propagation; it uses your existing TDR/TDT equipment and produces frequency dependent parameters such as the propagation constant (alpha, attenuation and beta, phase constant) and effective dielectric constant along with the characteristic impedance (including even and odd mode impedance.) Atlas measurements include launch point extrapolation/long line regression fit.
Controlled impedance test – Atlas GHz test software is also capable of traditional lossless controlled impedance test
