Jedec tray ic chip laser marking system concept
CDRH Class I is semi-automatic, manual load
Jedec tray ic chip laser marking system featuring programmable XYZ part motion.
System configured for marking copper pads on FR4 pc boards, marking gold-plated devices, marking PBGA
encapsulated devices and cutting copper circuit traces. Parts will be presented in Jedec trays (13” x 6.5”),
Auer boats or smaller individual part fixtures.
Specifications:
Laser: Ytterbium Fiber
Output Power: 20 watts
Focusing Assembly: 2" square marking field
Power: 110 VAC, 1 phase, 20 amps.
Windows TM Computer: IBM PC compatible, 2GB RAM, 80GB Hard Drive
101-key keyboard, 17" flat screen color monitor w/Ergonomic arm
Programmable Power and Frequency
Workstation Design
The marking workstation is of welded steel construction providing a rigid and durable machine tool structure. A CDRH Class I
compliant enclosure meets all required safety standards while providing easy access to all of the system components.
A safety-interlocked door provides the operator with access to the marking area.
The primary components of the system are the laser marking head, the programmable XY table positioning system,
and the XY table work surface accommodating changeable part-locating Jedec tray, Auer boars and fixtures.
Parts Handling
The laser marking head, incorporating an air-cooled, Ytterbium fiber laser, is mounted above the XY tables. The laser will provide
<1” programmable Z-axis (vertical) motion.
The computer controlled 14" x 7" XY tables support a tooling plate work surface. The work surface will include locating holes/pins
for Jedec trays, Auer boats and individual part fixtures. The XY motion will accommodate part trays up to the Jedec standard 13” x 6.5”
while the Z-axis motion of the laser head will accommodate variations in part height from 0.25” to 0.75” above the work surface.
Operator Workstation Controls
The operators keyboard, computer monitor and workstation controls will be mounted next to the load/unload station. The workstation control
panel will indicate the system status, provide a manual "Start” button and the Emergency "E-Stop".
A 17" flat screen monitor with Ergonomic monitor/keyboard arm allows the operator to freely position the monitor/ keyboard to the most
comfortable position.
Custom Software
CMS Laser can quote separately a database tie in based on software requirements outlined by the customer.
Software customization can include the uploading and downloading of part numbers from a database, bar-code confirmation with an
in-line bar-code reader, and 2D-matrix confirmation with a Vision System or ID reader.
Sequence of Operation
- The operator will load the desired part-marking program.
- The operator will open the access door on the enclosure and fix the Jedec tray or fixture of devices onto the work surface.
- The operator will close the access door and press the "Start" button to initiate the ic chip laser marking cycle.
- The laser head with through-the-lens vision will sequentially determine the XY-theta location/orientation and mark each device in the Jedec/fixture tray.
- On completion, the system will illuminate the "Write Complete" light to indicate completion of the marking cycle.
LaserGraf32 is a Windows based interactive job set-up program utilizing a "WYSIWYG" (What You See Is What You Get) operating environment, pull
down menus, and on screen graphics manipulation. Unlike other systems, LaserGraf32 allows you to create even advanced part marking programs from
a single screen. User friendly, intuitive operation speeds the user through program development and into production.
The LaserGraf32 program allows the operator to mark alphanumeric text, graphic images, and machine-readable code (2D datamatrix, linear barcode,
etc.) from a single window. The operator can easily establish the marking parameters, spacing, size, location, orientation, justification,
text font, angular orientation and radius marking of each element of the marking image.
LaserGraf32 can contain variable information fields for ic chip laser marking date-codes, time-codes and alphanumeric serial numbers. The content of the
fields can vary in response to the computer clock, operator or host network input, or communications from other external devices.
A DXF converter permits conversion of DXF file formats directly into LaserGraf32.
LaserGraf32 has two modes of operation. Engineering mode is used for system setup and creating part marking programs. The Operator mode (Protected mode) is the mode used by the operator retrieving part programs used for ic chip laser marking. The lasers operating parameters and fixed fields are protected in this mode. Only the information in the variable fields is changeable.
Through-The-Optics Vision System (Optional)
An optional through-the-optics vision system will provide the capability to locate fiducial and other identifier marks to establish the XY-theta location of part trays or individual devices in the Jedec trays or part fixtures. The vision system will have a 5mm square field-of-view.
For Jedec tray applications, the vision system will identify the XY position and rotational orientation of each device in the tray to precisely locate the marking image on the device. The vision system can determine the rotational orientation up to +- 40 degrees.
The vision system will be appropriate for similar alignment functions on the metal lid devices and FR4 substrates.
Note: all vision functions must be verified with user parts in CMS Vision Lab.
