In the early design phase, padring design is one of the critical elements in design planning. The result from padring design not only will impact packaging, board level design, power integrity and signal integrity result, but also the overall product cost .In the past, padring design is often done through separate standalone tool like Orbit IO or internal excel estimation spreadsheet. The process of padring design is a tedious step as it involves a lot of hand editing and the quality of the padring placement rely on the experience of dedicated padring designer. The intend of this paper is to share the automated unified padring design methodology where single design database is referenced hence padring design will always be in sync with fullchip backend database. The automated unified padring flow allows consistent cross functional review reference point, better controllability for core and padring design integration and enhance the padring design process efficiency by minimizing the experience gap of the padring designer in charged. Hopefully the methodology proposed will benefit the padring designers in floorplanning and product cost estimation through unified padring flow.

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