preethi19
Full Member level 5
hi i am doing the layout for my circuit and i need to include the power rails. Vdd, Vss and gnd. Now when i saw on example the vdd and vss r just metal1 pin in the LSW ( a small box ) and in another example i saw they used metal1 drawing and made a large rectangle. I understand that if there are lot of connections to power rails a small pin won't be do much good so we have broad metal 1 rectangle. But suppose say i have just one connection to vss so should i create a metal or pin. Does the size of the metal in anyway affect the connection or design. Besides how to determine how much width of metal i am supposed to use. The power consumed by my design is 0.3uW. And is there a certain distance of how i can place Vdd,vss and gnd. So far i have just made it compact by trying to build my design as close as possible(following the design rules). Can someone pls help... Thank you!!!