Staggered Pin Grid Array or SPGA is a style of socket used on some integrated circuits, usually CPUs. It consists of two square arrays of pins, offset in both directions by half the minimum distance between pins in one of the arrays.
As with the pin grid array, there is generally a section in the middle of the IC without any pins.
The SPGA socket 20 comprises a staggered grid of receptacles 22, each receptacle 22 being encased in a conductive metal which extends through to connectors 24.
Another feature of the present invention is two independent force generating members, acting on opposite sides of the device to be removed, to permit extraction at a controlled rate, reducing the potential for damage to the pins or package of the device being removed.
For reference, a SPGA package configuration utilizes 0.018" diameter pins having rows of pins with 0.100" spaced centers, wherein each successive row is a distance of and staggered 0.050" from the preceding row.
Note that the SPGA, and therefore the applicant seeking an increase in allowable height, is required to demonstrate that the height increase is necessary to maintain neighborhood scale and character.
The SPGA shall allow the reduction of setback requirements only upon a finding that the setbacks as imposed by the underlying district would result, or have resulted, in construction of structures that are not in keeping with the area's scale and character.
The SPGA may grant approval for (single family, two-family, multi-family) residential uses at a density of one dwelling unit per _____ square feet within the Overlay District or a maximum of ___ units on the same lot.
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