compile-vlsi

Magnet Placement and Placement Bound in  VLSI Physical Design These two popular techniques used to optimize placement are Placement Bounds and Magnet Placement. While both techniques aim to improve placement, they differ in their approach, application, and benefits. In this article, we'll look into the details of each technique and compare them to help designers make informed decisions. 1. Placement Bounds Placement Bounds are a type of constraint that controls the placement of groups of leaf cells and hierarchical cells. They allow designers to group cells to minimize wire length and place the cells at the most appropriate locations. Placement Bounds are particularly useful when timing is critical during placement, and cells need to be placed in close proximity to each other. Types of placement Bound: Soft Bound : A Soft Bound is a type of Placement Bound that suggests a preferred placement region for a group of cells. The placement tool tries to place the cells within the specifi...

Scripting Interview Question 2 | Physical Design  | Floor-Planning | Tcl Programming Role:  Physical Design Company  : Product Based Experience:  5+ years Suppose you are working on floor-planning for a block-level implementation, and one of the key tasks is macro placement. In this scenario, there are special cells in the design that need to be placed according to specific requirements: The cells must be uniformly placed throughout the chip. The block has dimensions of 500 μm in height and 1000 μm in width. The distance between adjacent special cells should be 10 μm in both the vertical and horizontal directions. Each special cell has dimensions of 2 μm x 2 μm. The first special cell should be placed with an offset of 5 μm from the origin. Write a TCL script to implement this placement strategy at floorplan stage. Instructions for Submission: Please post your answers in the comment section below. For detailed explanations and solutions, check the answers later on...