Цитата(oleg_uzh @ Jun 8 2015, 14:20)

...размеры и минимальное расстояние между соседними контактными площадками для GSG расположения...
I would agree with
serega_sh. There are no strict standards for pad size and pitch. It is defined by many factors including operating frequency of your chip.
It is often a trade-off. Usually you want small pads in order not to degrade performance of your chip, but large enough for convenient bonding.
There are some widely used pitches, such as 100um, 125um, 150um, 200um, etc.
The layout of pads is also often included in the design kits. Just use the default one, if you can.