OM-1743-005w.pdf - 第131页
1209-001 OM-1743 8-6
(f) Use a taping on condition that the component itself or its electrical contact
is not protruded from the upper surface of tape.
Embossed Taping
"Embossed depth (T
3
) > Component thickness"
Cover Tape
Component
T3
Fig. H7
(g) Shown in column "t" is the gap between the component pick-up and chute
surfaces.
As the gap can be adjusted by the stroke control, set the pick-up level data
in the component library data.
If dimension "t" is big, components may not stay still or may be tilted.
Be sure to adjust the dimension for the appropriate one in the range of
values specied in the table.
(h) The shape of component pick-up surface should be wide and smooth
enough to be picked up by vacuum nozzles.
(i) Cover tapes sometimes become thicker than expected due to leafy and
uffy leftovers produced through the production process.
However, the overall thickness should not exceed the value described as
"T
2
" in the table.
1209-001
8.1 Specications of 8 mm Dual Tape Feeder
OM-1743
8-5
1209-001
OM-1743
8-6
9. Reference Taping Specications
9.1 Allowable Limit of Edge Waving of Tape
Allowable limit of edge waving of tape should be or less than 1 mm per 100 mm
through a length of 250 mm as illustrated.
1 or less
1 or less
Unit : mm
Fig. I1 Allowable Limit of Edge Waving of Tape
9.2 Test Method for Edge Waving of Tape
The edge waving of tape shall be tested in such a manner that one end of tape
is xed, the tape is pulled by a force of 1N (102 gf) applied to the other end, a
graduated transparent plastic plate which also serves as a weight is placed on the
tape, and then the waving is measured.
Tape
Reel
Fixed Point
Graduated transparent plastic plate
which also serves as weight
Force of 1N
(102 gf)
Fig. I2 Test Method for Edge Waving of Tape
1209-001
9. Reference Taping Specications
OM-1743
9-1