Test & Burn-In

Test & Burn-In

SPECIFICATIONS ARE SUBJECT TO ALTERATION WITHOUT PRIOR NOTICE – DIMENSIONS IN MILLIMETER

SPECIFICATIONS ARE SUBJECT TO ALTERATION WITHOUT PRIOR NOTICE – DIMENSIONS IN MILLIMETER

Test & Burn-In

Test & Burn-In

Since the solder balls are touched

by two contacts on each side,

the solder ball damage can be

minimized; additional features

are low actuation force and

compact socket size

IC

Ball

Socket

Base A

Contacts

Socket

Base B

Yamaichi's 2-point Tweezer Contact

100V AC for 1 minute

W

30m

max. at 10mA/20mV max.

–55°C to +150°C

–40°C to +170°C

Features

Insulation Resistance:

Dielectric Withstanding Voltage:

Contact Resistance:

Operating Temperature Range:

W

1,000M

min. at 100V DC

Housing:

Contacts:

Plating:

Polyetherimide (PEI), glass-filled

Polyethersulphone (PES), glass-filled

Beryllium Copper (BeCu)

Gold over Nickel

Series No.

No. of Contact Pins

(.AC-types are depopulated

base sockets)

Design Number

NP276

1105

*

22

-

-

Materials and Finish

í Open top type sockets for BGA packages

í Self contacting structure without upper pressing force (ZIF)

í Contacting structure to nip the sides of solder balls to lower

damage to the coplanarity of the solder balls

Contact Force:

Mating Cycles:

30g per pin approx.

10,000 insetions

Positioning Pin Options (see PCB):

Pos. pin 'A'

1 =

2 =

3 =

4 =

With

With

Without

Without

With

Without

With

Without

Pos. pin 'B'

Contact Terminal Length and Form

(*)

-

Specifications

Applicable Base Socket and IC Dimensions

Pitch

Part

Number

Grid Size

Body Size

Base Sockets

(see page)

IC Dimensions

Pin

Count

NP276-11904

119

1.27

7 x 17

14 x 22

2

NP276-11904-3

119

1.27

7 x 17

14 x 22

2

NP276-15316

153

1.27

9 x 17

14 x 22

3

NP276-16951

169

1.27

13 x 13

17 x 17

4

NP276-25626

256

1.27

16 x 16

21 x 21

5

NP276-37206

372

1.27

20 x 20

27 x 27

6

NP276-40009

400

1.27

20 x 20

27 x 27

7

NP276-59608

596

1.27

26 x 26

35 x 35

8

NP276-65227

652

1.27

28 x 28

37.5 x 37.5

9

NP276-87318

873

1.27

31 x 31

40 x 40

10

NP276-110522

1105

1.27

35 x 35

45 x 45

11

We have depopulated versions from existing NP276 base sockets.

As new versions are continually being tooled up we rcommend

to contact Yamaichi for your specific pin count

and matching IC

Outline Socket Dimensions (27.00 x 38.00mm)

Outline Socket Dimensions (26.40 x 32.20mm)

NP276-11904

NP276-11094-3

Base Socket NP276-11904

Grid Size: 7 x 17

Grid Size: 7 x 17

Base Socket NP276-11094-3

Pin Count

119

Body Size

14 x 22

Pin Count

119

Body Size

14 x 22