18.725±0.05 (x4)

22.725 (x4)

4.00 (x4)

3.00

1.71 (x4)

15

6

4

3

12

7

1

16

14

17

11

13

10

9

18

8

2

5

5.00

2.50

Backing Plate Top View

Backing Plate Side View

ITEM NO.

Description

Material

1

CG Socket Base 16.325mm

Pocket 18.725mm Holes

7075-T6 Aluminum Alloy

2

Clam shell lid for 17mm IC

7075-T6 Aluminum Alloy

3

Compression Plate

7075-T6 Alumium Alloy

4

M10 Comression Screw

7075-T6 Aluminum Alloy

5

Precision Compression Spring,

Zinc-Plated Music Wire, 1/2"

Length, .12" OD, .016" Wire

Zinc Plated Music Wire

6

Spring Clamshell lid assembly

Steel Music Wire

7

Hinge Pin and Snap Ring,

3mm OD, 25mm long, SS

Stainless Steel (ferritic)

8

Clamshell Latch

7075-T6 Aluminum Alloy

9

Ball Guide for 8.8X16mm

10X19 array 0.8mm pitch

Kapton Polyimide/Cirlex

10

Elastomer Guide 16mm IC

Ultem 1000

11

0.75mm thick 0.1mm pitch 63

deg angled elastomer

Silicon Rubber

12

BGA189 IC 0.8mm pitch 10x19

array

FR4

13

PCB BGA189 0.8mm pitch

10x19 array

Material <not specified>

14

16x16mm Clamshell Backing

Plate

7075-T6 Aluminum Alloy

15

Screw, M3 x 12mm, Low Head

Cap, SS

18-8 Stainless Steel

16

Dowel Pin, 1/32" x 3/16", SS

Chrome Stainless Steel

17

#0-80 X .375 LG, SOC HD

CAP SCREW, ALLOY STL,

BLK OXIDE

Alloy Steel

18

IC Guide 8.8x16mm IC

Torlon 4203

Tolerances: Hole diameters ±0.0254mm [±0.001"], Pitches (from true position) ±0.0762mm [±0.003"], substrate thickness tolerance ±10%, all

other tolerances ±0.127mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice.

Description: Skt and Backing plate Detail

Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams.

STATUS: Released

REV. B

DATE: 02/15/2015

Material: Material <not specified>

Finish:

Weight: 67.28

CG-BGA-4018 Drawing

SCALE: 1.8:1

SHEET: 4 OF 5

ENG: S. Huang

FILE: CG-BGA-4018 Dwg

DRAWN BY: S. Huang

©2015 Ironwood Electronics, Inc.

Tele: (800) 404-0204

www.ironwoodelectronics.com