Omron V-TS Teaching Manual.pdf.pdf - 第332页
Appendix 9. Land Insp ection Adjustm ent Procedure a- 55 Inspection result Component im age (PCB test) Normal (land error overlooked) Cause Confirm ation/rep a ir method W hen position does not match between the actual l…
Appendix 9. Land Inspection Adjustment Procedure
a-54
Inspection item 8. Land error
Based on the color which was detected in the land window and does not appear in normal cases,
inspect if there is an error on the land.
If false call or overlooking still remains in the inspection result, “Land error” is displayed.
The inspection result image, cause, and repair method of land error are as follows:
Inspection result
Component image (PCB test)
Land error
Cause
Confirmation/repair method
When position does not match between the actual land and extracted land:
The land window is not positioned
appropriately.
Refer to Appendix 7.2.
The land window of the peripheral components
of the applicable component is not positioned
appropriately.
Refer to Appendix 7.2.
The fiducial correction is not appropriate.
Refer to Appendix 7.1.
The position correction color is not appropriate.
Refer to Appendix 7.2.
When position does not match between the actual component (electrode) and extracted component
(electrode):
The component extraction is not positioned
appropriately.
Refer to Appendix 7.5.
The electrode tip extraction is not positioned
appropriately.
Refer to Appendix 7.7.
The electrode side is not extracted in an
appropriate position.
Refer to Appendix 7.6.
The electrode window is not sized
appropriately.
Refer to Appendix 7.5.
The inspection area of land error is not
appropriate.
1) Move to the “Criteria Setting” tab.
2) Select “Inspection Criteria” - “Land Exposure”,
and click the [Model Editing] button (*Image to be
pasted).
3) Edit characteristic parameters using the color
table editing tool so that metal portion of the land
(such as copper foil) is extracted.
The inspection criteria are not set appropriately.
Refer to Appendix 10.1.
Appendix 9. Land Inspection Adjustment Procedure
a-55
Inspection result
Component image (PCB test)
Normal (land error
overlooked)
Cause
Confirmation/repair method
When position does not match between the actual land and extracted land:
The land window is not positioned
appropriately.
Refer to Appendix 7.2.
The land window of the peripheral
components of the applicable component is
not positioned appropriately.
Refer to Appendix 7.2.
The fiducial correction is not appropriate.
Refer to Appendix 7.1.
The position correction color is not
appropriate.
Refer to Appendix 7.2.
When position does not match between the actual component (electrode) and extracted component
(electrode):
The component extraction is not positioned
appropriately.
Refer to Appendix 7.5.
The electrode tip extraction is not positioned
appropriately.
Refer to Appendix 7.7.
The electrode side is not extracted in an
appropriate position.
Refer to Appendix 7.6.
The electrode window is not sized
appropriately.
Refer to Appendix 7.5.
The inspection area of land error is not
appropriate.
1) Move to the “Criteria Setting” tab.
2) Select “Inspection Criteria” - “Land Exposure”,
and click the [Model Editing] button (*Image to be
pasted).
3) Select the fault component, click the * button, and
select the area in which the characteristic of the fault
appears large.
4) Click the * button, and select the area in which the
characteristic of the fault does not appear (*Image to
be pasted).
The land error color is not set appropriately.
1) Move to the “Criteria Setting” tab.
2) Select “Inspection Criteria” - “Land Exposure”,
and click the [Model Editing] button (*Image to be
pasted).
3) Select the fault component and edit characteristic
parameters using the color table editing tool so that
the color of the fault is extracted (*Image to be
pasted).
The inspection criteria are not set
appropriately.
Refer to Appendix 10.1.
Appendix 9. Land Inspection Adjustment Procedure
a-56
The details of the procedure for land error adjustment are as follows:
For details of land error, refer to P5-17 section 5.10 “Land Error” of the inspection logic
manual.
This section hereafter describes the adjustment procedure for false call minimization.
Operation procedure
1. Check the land error checkbox.
2. Check the “Relieve wetting inspection” checkbox.
3. Set the inspection area on the area where the characteristic of OK product appears.
OK product example
Inspection area setting example