2OM-1088-002.pdf - 第80页

Tg0699-PM-D2 A through hole or a pad mark should have only one lead which is directed in increments of 45°. Consult our marketing department or sales agency for details such as dimensions, etc. 0207-001 Chapter 1 2-21 1.…

Tg0699-PM-D2

0207-001 Chapter 1 2-20

1.2 Operation Data

(8) Fiducial Marks

P.E.C. Fiducial Marks

Material

• Copper Leaf (Au and Ni plating possible but mirror surfaces cannot be

used.)

• Solder-Plated Marks (Consult our marketing department for details.)

• Solder Leveler (Consult our marketing department for details.)

Type and Size

Table 3B2

Tg0699-PM-D2

A through hole or a pad mark should have only one lead

which is directed in increments of 45°.

Consult our marketing department or sales agency for

details such as dimensions, etc.

0207-001 Chapter 1 2-21

1.2 Operation Data

Table 3B3

Tg0699-PM-D2

0207-001 Chapter 1 2-22

1.2 Operation Data

Regulations regarding Mark Surroundings

• A fiducial mark should make ample contrast with the surround-

ings. (Preven-tion of False Recognition)

• The shape of P.C.B. (a cutout, a punched hole), the external

elements (light reflected from a structure, light emitted from an

external device, etc.,) may sometimes interfere with recognition.

(Consult our marketing department or salse agency for details.)

• A copper leaf, a resist, a coating, a silk print, and a punched

hole should not exist in the range of 1.0 mm in both X and Y

directions from the outermost edges of a fiducial mark. They

may cause false recognition.

• Anything resembling a pattern similar to a fiducial mark should

not exist in the designated recognition area. If one exists, it may

cause false recogni-tion.

Refer to "Chapter 2" in "Volume 1" for the material of

the screen plate and the settings of screen fiducial

marks.

Fig. 3B49