Ironwood-electronics SS-BGA User Manual Manual do Utilizador descarregar pdf (Página 6)

SSI.doc, Rev. A, IP

Rev. B/C/D, RP

Rev. E, VP

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

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

1 2 3 4 5 6 7 8 9 10 11

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Ironwood-electronics SS-BGA User Manual Manual do Utilizador Página 6