1. Track are nothing but routing grids; 2. P R tools will use these tracks for routing.........standard cells are coming in diffrents tracks like 7 track 9 track 12 track. 7 tracks means we have 7 tracks available for routing. 3. If u increase the track ur cells will be faster but will consume m ...
Blackboxes are a light weight representation of a block, containing boundary timing constraints and physical boundary info. Since they don't actually contain any functional information they require very little memory allowing the creation of timing budgets of our 28 M gate chip on a 32 GB mach ...
The target_library variable specifies the library that Design Compiler uses to select cells for optimization and re-mapping. It is typically set to only the standard cells library . The link_library variable specifies every library that has cells referenced by the netlist. The tool uses th ...
1、Milkyway library means the design in layout format and you need the reference milkyway library to create your layout design. Reference milkyway library consists the predesigned layout of basic cells like AND, OR, NAND so on. Milkway is a term used in Synopsys tool, but different vendors(like ca ...
A: tapping is done to avoid latch up effect......hope u know latch up effect... so for that n tap is connected to p transistor....by connecting p tap over VDD similarly for p tap ....is connected to n transistor....connected to VSS... B: well tap cells are used to limit resistance between power o ...
第一种说法： Global routing is focused on resolving congestion and timing issues. Global routing creates net segments and defines the initial routing topologies. The topologies include a layer assignment for each segment of each net . Each net segment is a total contiguous length of intercon ...
During the synthesis, what type of wire load model are often used? 在综合时，除了用ZWLM（zero wire load model），或者不同K值的wire load model以外，还有一个基于物理位置（距离）的wire load model，在Cadence的RC中叫PLE（物 ...
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