FUJI NXT Programming Manual QD004-18.pdf - 第96页
4. Part Data Settings QD004-18 86 NXT Programming Manual Position X, Y This expresses the X- and Y-coordinates from the center of the part to the p oint on the side of the part that is central with the elem ent. (Refer t…
QD004-18 4. Part Data Settings
NXT Programming Manual 85
4.3.3 Shape Information details
Body
Length (X)
Specify X-direction length of the part's body size.
Width (Y)
Specify Y-direction length of the part's body size.
Length Tolerance (X)
Specify the part's X-direction length tolerance.
Width Tolerance (Y)
Specify the part's Y-direction length tolerance.
Height
Specify the part's height.
Height Tolerance
Specify the part's height tolerance.
Color
For the NXT, this is used for vision processing of parts. Parts that are using the body
detection vision types must have the color specified as “White”.
The vision type that this setting must be “White” are: 60, 61, 62, 63, 65, 71, 74, 80, 153,
160, and 252.
Parts using these vision type that do not appear “white” in the images (the body is completly
black with no leads), cannot be vision processed using these vision types.
Lead
Pitch Tolerance
It is the tolerance allowed for the deviation from the pitch as a percentage of the lead pitch
length. If no setting is made here, processing is carried out using a default value of 30%.
Element Information
Set element related data. An element is a group of leads on the same side of a part which
have the same length, width, and pitch. As there may be several elements on a part,
numbers are assigned to the elements for identification purposes.
Double-click the data cell for this field and the [Element Information] dialog box displays.
4. Part Data Settings QD004-18
86 NXT Programming Manual
Position X, Y
This expresses the X- and Y-coordinates from the center of the part to the point on the side
of the part that is central with the element. (Refer to the figure below)
Side
Specify the side on which the element is located. Side numbers should always be assigned
as shown in the above figure (at direction 0).
P_pattern
Specify how the leads appear to the vision processing system. Select the P Pattern from
the choices that matches the lead image.
Refer to section 4.5 "P_pattern Details" for details on settings for this item. The table below
lists the common P_pattern settings for the NXT.
(Position X, Position Y)
(0, 0)
Body
Lead element group
1
4
3
2
Side 0
Side 1
Side 2
Side 3
NXTPRG007Eb
Part Type P Pattern
Number
SOIC, SOT 4
QFP (leads on 4 sides) 14
SOJ 4
PLCC 12
BGA (White body) 1
BGA (Black body) 2
QD004-18 4. Part Data Settings
NXT Programming Manual 87
Result
Specify the type of check which will be performed on the leads in the element. Normally,
this is set to [Inspect]. The check items are described below.
Quantity
Specify the number of leads in the element.
Pitch
Specify the pitch of the element leads.
Width
Specify the width of element leads.
Group Setting Description
Vision
Processing
Options
Inspect Specifies the usual vision processing inspection
without special checks. This setting is specified for
standard parts which do not have special shapes.
Don't inspect The element is not inspected.
Virtual lead This setting is used to define virtual leads. When the
part is inspected, the vision processing system
verifies that there are no leads in the virtual lead area.
This function is useful for polarity checks.
Matrix Use this for BGAs and flip chips. Because the leads
are defined as a two dimensional array on these
parts, two records are necessary to define one
element. Result is set to “Inspect” in the first element
and in the second element result is set to "Matrix."
The "Matrix" setting alerts the vision processing
system that this is a grid-type part and that two
consecutive element records describe one element.
Check
Items
No length
tolerance check
Select this item to disable the lead length tolerance
check. This setting is used when there is a wide
variation in the length of the leads.
No width
tolerance check
Select this item to disable the lead width tolerance
check. This setting is used when there is a wide
variation in the width of the leads.
First pin check Use this to check that there is no lead to the left of the
very first lead detected (leads are inspected from left
to right).
Last pin check Select this item to enable the last pin check function.
In left to right vision processing of leads, this function
verifies that there is no lead to the right of the last
detected lead. In top to bottom vision processing of
leads, it verifies that there is no lead below the last
detected lead.
No center
length tolerance
check
Not supported
No center width
tolerance check
Not supported