The disadvantage autorouter Specctra yavlyaetsya difficulty settings file restrictions imposed by the criteria of the trace (DO – file.) The company Altium Designer also launches two new routes-through design PCBs: the top (the system is designed for PCB design and maintenance of any one board design development group) and lower (table level, ie the system is nice for develop a relatively simple one PCB designer) level. As a system of top-level route pozitsioniruetsya Altium Designer, which now made the basic rate of the company. Product of lower-level yavlyaetsya System Design PCB PCAD (for the time being ceased to be supported by the company). Although this design program is officially closed and will not be further supported by the company – she continues to enjoy very many designers of printed circuit boards. PCAD package includes several modules: PCAD Schematic – electrical schematic editor. Library Executive – Library Manager, which supplies components for editors E3 and PCB. PCAD PCB – PCB editor.
Also This package includes several other auxiliary programs for modeling, autorouting, etc., but at the moment due to the increased demands on printed circuit board designs programs fail ispolzuyutsya. Key features of the system design PCAD yavlyayutsya: Support for a large number of layers of printed circuit board (99). Great variety in choosing the size of PP (maximum size of 60×60 inches). Up to 64 000 different types of pads and vias in the project (also worth noting the diversity of these sites and the possibility of installing thermal barriers). Almost bezsetochnaya trace – you can set any size (1 micrometer). Summarizing the above, it should be noted that the route-through PCB design CAD PCAD powerful enough to develop a multi-layer printed circuit boards (8-10 layers of which layers of 6.8 yavlyayutsya signal) with IC BGA – with pin count to 700 feet and speeds of propagation of signals up to 100 MHz (the frequency at which do not require simulation and verification). Despite the fact that the company has stopped development of Altium Designer system PCAD, he continues to occupy a leading position in the CIS market.