YesAX V3.1.2 - Software User Manual - 第222页
在线预览 YesAX V3.1.2 - Software User Manual PDF 文档。
Panelized Board Inspection 16-7
With By BLKTAG selected you can select two modes for the machine to read the BLKTAGs:
Pre-Scan or No Pre-Scan. If Pre-Scan is selected, the system reads all the BLKTAG’s before
inspecting any part. This is good for large blocks and small numbers of blocks. (e.g. 4 and up). If
the board consists of a large number of very small blocks (e.g. 10x10 array) it would take a long
time for the machine to read all the block tags. Do not select Pre-Scan. Let the machine inspect
all parts and the block tags together.
The inspection results are adjusted based on the presence or absence of the block tags. For
example, if 02-BLKTAG is not found, block 02 is considered “skip”, then the defective parts
from block 02 are removed from the defect report.
16.4 Block Fiducials
For panelized boards, it is a standard practice to route or score the boundaries of the circuits to
facilitate their eventual separation. The separation process is called de-panelizing. The routing
and score weaken the integrity of the PCB; causing the circuits to shift relative to each other
during the reflow process. Use the block fiducials to compensate for the block to block positional
inaccuracy. A block fiducial is a mark on the block which can be used as a positional reference
for all other parts on the block.
To use a block fiducial, first make sure all part overlays on the master block are well aligned
with the parts. Then select a positional reference mark on the master block, train a part and set its
reference ID to BLKFIDU. Train a mark inspection box on the reference mark. Give the part a
PN to help later parameter updates. Duplicate the BLKFIDU to all other blocks by selecting
Update Block from the Edit menu.
Using one block fiducial (BLKFIDU) for each block compensates for XY positional inaccuracy
for the block, which is usually sufficient for most panelized board designs.
You could also use 2 block fiducials (BLKFIDU and BLKFID2) for each block. With 2 block
fiducials you can also compensate for rotational inaccuracies. When you use 2 block fiducials,
BLKFIDU has to be to the left of BLKFID2. For best results, the middle point on a line drawn
from BLKFIDU to BLKFID2 should be close to the center of the block.
16.5 Alternate Reference ID Format
For YesAX the default Reference ID format for a panelized board uses a leading 2 or 3 digit
number and a dash to present the block number. For example, if the master block reference ID is
R1, then the corresponding reference ID for block 2 would be 02-R1. This default format has a
format number of 0. YesAX also allows an alternate format called format 1. It uses a trailing
alphabet to present the block ID. For example, if the master block reference ID is R1_A, then the
corresponding reference ID for block 2 would be R1_B.
SmartStart 17-1
17 - SmartStart
17.1 Introduction
SmartStart is a feature that selects inspection recipes based on the printed circuit board’s serial
number (SN from barcode) or appearance. With the help of a customized extension DLL
(DataLogExt.DLL) it integrates with the WIP (Work in Process) tracking host system via TCP/IP
or other interfaces.
17.2 System Part List
On the YesAX software, similar to the part list for each board, there is also a system part list
which is common across all recipes. The system part list is used by SmartStart to automate the
process of selecting and loading inspection recipes. Adding a part to the system part list is
similar to adding a part to board part list. It starts by pressing the Add Part button “ ” on the
toolbar.
In the Add New Part dialog, select the To System Part List radio button.