3_AVS-V2_MCT-UM-internal_EN_07-2019.pdf - 第11页
ASM AVS - U SER M ANUAL P AGE 11 OF 182 Dr awi ng of t he glas s pl ate:
ASM AVS - USER MANUAL
PAGE 10 OF 182
2.1.3.1.1 Structure of the glass board:
NOTICE
2TImprove Contrast when measuring fiducials
To improve contrast when measuring fiducials in the placement unit, the reflective plate can be inserted for
each placement.
Global fiducials (cross) for centering in place-ment
unit and rough position search in ASM AVS.
Local fiducials (67x46) to measure com-
ponent positions in ASM AVS.
Arrows to indicating transport direc-
tion in placement unit or insertion
direction in ASM AVS.
Stop lines:
For application of transparent dual adhesive foil,
For application of adhesive tapes for protection of edges
when spraying spray adhesive.
Calibration structure, to calibrate
the camera distortion.
Serial No. with date of manufacturer
Item number
ASM AVS - USER MANUAL
PAGE 11 OF 182
Drawing of the glass plate:
ASM AVS - USER MANUAL
PAGE 12 OF 182
2.1.3.1.2 Preparing the glass plate:
NOTICE
2TUse the spray mount glue instead of double sided gluing foil
We recommend "3M Spray Mount 400ml" [03071372-01] instead of double-sided adhesive sheet to use.
The spray does not wear as fast as the film. When scraping there are substantially fewer streaks.
You can use the drive up to 50 times.
NOTICE
Scraping the components
The components can be gently scraped off after the measurement of the plate.
Several (up to 50) configurations / measurements can thus be performed with a film.
Caution!!
The dot grid (3) is not glued on the film and thus not protected!
When scraping therefore always from the point grid (3) proceed away to push the components not on the
dot grid!
Do not forget, before applying the spray adhesive, to cover the edges of the plate with an ad-
hesive tape (eg: "adhesive tape Tesa 4657 30 mm wide" [00306789-01]), as shown below in the
image.
This is first, not to contaminate the metal frame, which is indeed guided by the PCB and sec-
ondly, in order not to cover the "global fiducials".
Please refer to the so-called. "Stop lines" (see picture on page 14).
Cover the environment below the plate with big paper towels (also newsprint) or films made.
Move the spray at a constant speed, in about 20cm distance from the plate, over the entire
width of the plate.
Start the movement outside of the plate.