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Contents

1

Introduction .......................................................................................................................

9

 

1.1

Objective ................................................................................................................

9

 

1.2

Purpose..................................................................................................................

9

 

1.3

Scope .....................................................................................................................

9

2

Assembled Component and Package Description......................................................

11

 

2.1

Assembled Component Description.....................................................................

11

 

2.2

Package Description ............................................................................................

11

3

Mechanical Requirements..............................................................................................

13

 

3.1

Mechanical Supports ...........................................................................................

13

 

3.2

Materials...............................................................................................................

13

 

 

3.2.1

Socket Housing.......................................................................................

13

 

 

3.2.2

Color........................................................................................................

13

 

3.3

Cutouts for Package Removal .............................................................................

13

 

3.4

Socket Standoff Height ........................................................................................

13

 

3.5

Markings...............................................................................................................

14

 

 

3.5.1

Name.......................................................................................................

14

 

 

3.5.2 Lock (Closed) and Unlock (Open) Markings...........................................

14

 

 

3.5.3

Lot Traceability........................................................................................

14

 

3.6

Socket Size ..........................................................................................................

15

 

3.7

Socket/Package Translation During Actuation ....................................................

15

 

3.8

Orientation in Packaging, Shipping and Handling ...............................................

15

 

3.9

Contact Characteristics........................................................................................

15

 

 

3.9.1

Number of Contacts ................................................................................

15

 

 

3.9.2

Base Material ..........................................................................................

15

 

 

3.9.3

Contact Area Plating ...............................................................................

15

 

 

3.9.4 Solder Ball Attachment Area Plating.......................................................

15

 

 

3.9.5

Solder Ball Characteristics......................................................................

15

 

 

3.9.6

Lubricants................................................................................................

16

 

3.10

Material and Recycling Requirements .................................................................

16

 

3.11

Lever Actuation Requirements.............................................................................

16

 

3.12

Socket Engagement/Disengagement Force ........................................................

16

 

3.13

Visual Aids ...........................................................................................................

16

 

3.14

Socket BGA Co-Planarity.....................................................................................

16

 

3.15

Solder Ball True Position .....................................................................................

16

 

3.16

Critical-to-Function Dimensions ...........................................................................

17

4

Electrical Requirements .................................................................................................

19

 

4.1

Electrical Resistance............................................................................................

20

 

4.2

Determination of Maximum Electrical Resistance ...............................................

24

 

4.3

Inductance............................................................................................................

24

 

 

4.3.1 Design Procedure for Inductance Measurements ..................................

25

 

 

4.3.2 Correlation of Measurement and Model Data Inductance ......................

26

 

4.4

Pin-to-Pin Capacitance ........................................................................................

27

 

4.5

Dielectric Withstand Voltage ................................................................................

27

 

4.6

Insulation Resistance...........................................................................................

27

 

4.7

Contact Current Rating ........................................................................................

27

mPGA604 Socket Design Guidelines

3