User`s manual

Lead Inspection
6-6
6
ËË
ËË
Ë Example of settings
- Example when 4DTECT MODE (detection mode) is set to "CENT (BRT)" (center dark) and
5SEARCH DIRECT (search direction) is set to "HORIZ (horizontal)."
- Example when 4DTECT MODE (detection mode) is set to "CENT (DRK)" (center dark) and
5SEARCH DIRECT (search direction) is set to "HORIZ (horizontal)."
THRESHOLD
Specify a threshold value. Move the cursor to this line and press the SET key. The currently SET
item will be highlighted. Press the SET key again to enter the setting screen.
Move to each of the following items and press the SET key: " GRYS." (difference of gray level)
" EDGE.W" (edge width), and " FLAT.W" (flat width). The current value for that item will be
highlighted and it can be changed using the up and down keys. After the value is correct, press the
ESC key to confirm it.
The values above can be reset to an appropriate level automatically. Move the cursor to the upper
function menu by pressing the TRG/BRT key and select "AUTO-REG". Then press the SET key to
set the levels automatically.
For details, see page 3-15.
EXTENSION MEAS, EXT. MEAS DIRECT
Extension measurements can be made for "LEAD-LENGTH" or "BALL-WIDTH" in line "
EXTENSION MEAS. Then, the " EXT. MEAS DIRECT" item will appear. At the " EXT. MEAS
DIRECT" item, set the position for the extension measurement direction, relative to the reference
line.
Note: This line is only displayed when "RECT" or "LINE" was selected for the "DTECT SHAPE." To
display this line, move the cursor to the upper function menu and select "DETAIL." Press the
SET key and select "EXTENSION MEAS" from the popup menu. Then press the SET key.
Edge
width
Flat
width
A
Brightness
Direction
B
Difference in
light
A
Edge
B
Reference line
Reference line
Center point
Edge
width
Flat
width
A
Brightness
Direction
B
Difference in
light
A
Edge
B
Center point
Reference line
Lead length
Decide the position using
"8EXT. MEAS DIRECT."
Measurement range
of lead length