Ironwood-electronics SS-BGA User Manual Manual de usuario Pagina 6

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SSI.doc, Rev. A, IP
Rev. B/C/D, RP
Rev. E, VP
5
Tel: (800) 404-0204 • (952) 229-8200
Fax: (952) 229-8201
11351 Rupp Dr. Suite 400, Burnsville, MN 55337
www.ironwoodelectronics.com
Backing and insulation Plate
For all IC body sizes, spring pin sockets require a rigid metal backing plate to prevent deflection of the
target circuit board due to a high normal force required to compress the spring pins. If the backside of the
target PCB contains capacitors and resistors, a custom insulation plate with cavities cut for those
components can be designed. This insulation plate sandwiches between the backing plate and target PCB
as shown in figure 4. Figure 5 shows an example of a custom insulation plate.
36.00mm
36.00mm
2.09mm
2.09mm
5.080mm
±0.025mm
31.825mm
±0.025mm(x4)
2.540mm
±0.025mm
1.59mm
±0.18mm
Ø 1.59mm (x4)
Ø 0.79mm (x2)
Side View
Top View
Top view
(with component layout
reference only)
Figure 5: Insulation Plate example drawing
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