SOM-1735-001.pdf - 第35页

5.2 Parameters (B02-14) Fig.78 Inspection method 4-Point Insp 0307-001 34 Tg0930-PM-SO (2) Inspection method S pecify how many places should be inspected for polarity determina- tion. Select "4-Point Insp" or &…

• In the case of "BGA", the center of the ball grids must be aligned

with the center of the mold.

Fig. 76

Sequence of Polarity Determination

Top View of Component

(Polarity Different by 180°)

Fig. 77

0307-001 33 Tg0930-PM-SO

5.2 Parameters (B02-14)

Fig.78

Inspection method 4-Point Insp

0307-001 34 Tg0930-PM-SO

(2) Inspection method

Specify how many places should be inspected for polarity determina-

tion.

Select "4-Point Insp" or "2-Point Insp" as an inspection method.

4-Point Insp: Select this to inspect the four places rotated in incre-

ments of 90°, based on the center of the component.

Select this for a square component.

Fig. 79

2-Point Insp: Select this to inspect the two places rotated by 180°,

based on the center of the component.

Select this for a rectangular component.

Fig. 80

Regarding the missing ball as a polarity

Top View of Component

Fig. 81

Regarding the mark on the mold as a polarity

Top View of Component

Fig. 82

Regarding the cutout of the mold as a polarity

Top View of Component

Fig. 83

5.2 Parameters (B02-14)

0307-001 35 Tg0930-PM-SO