2 Note

Ball Usage

307507-002 33

Table 16 - 1 kohm Measurements

Resistor Ball

AM5 AH9

AM7 AH9

AJ1 AJ2

AD2 AF2

AG2 AG3

AJ3 AK3

AD1 AC1

AF1 AB2

AE1 AG1

R3 Y1

F28 G28

F3 G23

A13 T1

B23 C22

AL1 AK1

G2 R1

H1 AL2

AJ7 AH7

AC2 AE8

N4 P5

AC4 AE4

AH4 AH5

AJ5 AJ6

AB3 AD3

H4 M2

Note: Changes from Test Chip JM8HKZLVA to Test Chip JM8YKZLVA Summary

VSS pads (AL3, U1, G1, E29, A24, AN7) are not used.

Pad (D14) replaces pad (E7) as an Hcontrol signal. E7 is not used.

Pad (E6) replaces pad (F6) as an Hcontrol signal. F6 is not used

Pads (E23, F23) are not used.

VSS pads (AH7, AJ7, AL7, AM7) became signals that are tested resistively.

VCC pad (AL8) has become a signal that is tested resistively.

The following table can be used to identify the electrical differences between the

JM8HKZLVA and the JM8YKZLVA (LGA775YP) test devices. The differences could be

used to determine that the correct device and manufacturing test are synchronized

and not rely only on the physical markings of the devices. Testing the differences

between which land pads have zero ohm, 1 kohm or no resistors between them can

identify the devices being used.