28.4000 CBT-BGA DIRECT MOUNT, SOLDERLESS SOCKET FOR BURN-IN AND TEST APPLICATIONS FEATURES: Wide temperature range (-55C to +180C) High current capability (up to 4A) Excellent signal integrity at high frequencies Low and stable contact resistance for reliable production yield Highly compliant to accommodate wide co-planarity variations Automated probe manufacturing enables low cost and short lead time 25.6000 37.2250 Recommended torque 26.4 Ncm (2.34 lbf in) TOP VIEW 39.2550 1.5193 1.3875 5.0250 3.9750 7.9375 22.7250 FRONT VIEW SIDE VIEW 6.1250 6.1250 ISO VIEW Description: Socket Specification Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-BGA-7034 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 66.03 STATUS: Released SHEET: 1 OF 4 DRAWN BY: M. Raske SCALE: 2.75:2 FILE: CBT-BGA-7034 Dwg DATE: 05/03/2016 REV. A 25.6000 socket lid w/ bump out 24.0000 socket lid 2.2875 4X Note: BGA footprint is shifted by 0.25mm to the right with respect to the mounting holes. 0.6500 1.7000±0.1000 THRU ALL 2X 0.8500±0.0250 THRU ALL 2.0375 6.8250 6.3225 3.7825 33.2250 socket size 37.2250 socket lid 20.9750 keepout area on top of PCB 8.8625±0.0250 (x4) 0.3000 pad (x448) latch area (x2) 13.65 20.4750 socket size 21.2250 keepout are on top of PCB Target PCB Recommendations Total thickness: 1.6mm min. Plating: Gold or Solder finish Description: Recommended PCB Layout Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-BGA-7034 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 66.03 STATUS: Released SHEET: 2 OF 4 DRAWN BY: M. Raske SCALE: 3:1 FILE: CBT-BGA-7034 Dwg DATE: 05/03/2016 REV. A 0.10 C (2x) 15.0 A B 0.10 C 13.65 0.45 REF A1 ball corner 0.65 0.18 REF A1 ball corner A 13.65 15.00 0.65 0.10 C A2 448x b 0.15 M C A B 0.05 C A 0.08 C A1 C Ironwood Package code: BGA448D DIM A A1 A2 b DETAIL A SCALE 8 : 1 Minimum Nominal Maximum 0.78 0.90 0.97 0.22 0.27 0.32 0.59 0.63 0.67 0.30 0.35 0.40 Number of balls 448 Description: Combatible BGA Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-BGA-7034 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 66.03 STATUS: Released SHEET: 3 OF 4 DRAWN BY: M. Raske SCALE: 4:1 FILE: CBT-BGA-7034 Dwg DATE: 05/03/2016 REV. A ITEM NO. 1 2 3 4 5 1 4 7 PART NUMBER M1433 M1772 R1693 R1817 R1959 Compression Plate Floating Guide 8 9 Middle Guide Bottom Guide 10 11 BGA384 Target PCB Customer's device Test PCB 1 1 12 13 P-P196A R3147 SBT Pin, SBT-BGA 0.5mm-0.8mm #0-80, 90 deg., head pin guide screw, Peek material 1 4 14 R1820 2 15 R1821 16 R2145 17 R1790 18 19 20 21 22 M3133 P5253 Socket Base M5512 R3836 Spring Clamshell lid assembly Precision Compression Spring, Zinc-Plated Music Wire, 1/2" Length, .12" OD, .016" Wire Floating Guide Spring #0-80 X .625 LG, SOC HD CAP SCREW, ALLOY STL, BLK OXIDE Backing plate Insulation Plate CBT Socket Base Socket lid Dowel Pin M2x5mm 6 14 15 2 21 6 10 20 3 5 7 16 8 9 DESCRIPTION QTY. M6x1 fluted knob compression screw, Ni plated Clamshell Latch Dowel pin, 1/32" X 1/4", SS Screw, M3 x 12mm, Low Head Cap, SS Hinge Pin and Snap Ring, 3mm OD, 25mm long, SS 1 2 2 2 2 Compression plate 15mm IC 1 Floating Guide, 15mm 22x22 0.65mm pitch; 448 holes 1 Middle Guide 15x15mm, 22x22 0.65mm Pitch; 448 holes Bottom guide 15mm, 22x22 0.65mm Pitch, 448 holes 1 1 Custom insulating plate is determined later 12 1.5875 13 11 19 17.7250 17 PIN DETAIL Scale 8:1 Description: Socket Assy, Detail 1.7000 22.7250 6.3500 Backing and Insulating plate Primary dimension units are millimeters, Secondary dimension units are [inches], Weight is in grams. Tolerances: Hole diameters ±0.03mm [±0.001"], Pitches (from true position) ±0.025mm [±0.001"], substrate thickness tolerance ±10%, all other tolerances ±0.13mm [±0.005"] unless stated otherwise. Materials and specifications are subject to change without notice. CBT-BGA-7034 Drawing Ironwood Electronics, Inc. Tele: (800) 404-0204 www.ironwoodelectronics.com Material: N/A Finish: N/A Weight: 66.03 STATUS: Released SHEET: 4 OF 4 DRAWN BY: M. Raske SCALE: 3:2 FILE: CBT-BGA-7034 Dwg DATE: 05/03/2016 REV. A 2 4 4 1 1 1 1 2