M. Hansson Consulting, Inc. specializes in
the design and development of customized test, measurement and
control solutions for a variety of customer applications. If you
have a test specification, we would be happy to work with that. If
you do not, we offer our consulting services to help you develop
one.
The following are some examples of
solutions that have been customized to fit our clients’ needs.
Please click on the titles to find out more. You may also click on
the photos to view a larger version.
This customized IC handler was developed
for a large European semiconductor company that needed an extremely versatile IC
handler able to handle and visually inspect ICs. The handler uses a high-speed
robot to move ICs as small as 5x5mm around a work area with a repeatability of
20 microns. The handler features tape in- and out stations, tube in- and out stations
with stacking, dual fixtures for electrical testing, and tray in- and out
stations with magazines. Two cameras perform six-sided inspection, and a laser
sensor at the tip of the robot arm allows the robot to “see” where the ICs are.
The cost-effective design features full PC-control and a touch screen for easy
interfacing, and is intended for use during evaluation runs and parametric
evaluations, or for handling slow IC testing in low-volume production.
This high-speed
inspection station uses a PXI-based high-speed PC platform, three cameras and
two quartz halogen illuminators to visually inspect five fuses per
second.
Each
fuse is inspected at 360º against defects such as blow holes, blisters, epoxy
spots, indentations, nicks and scratches.
When one of the largest
contract assembly houses in the Philippines needed a custom tester to perform
function testing of automotive sensor assemblies for a large German customer,
they turned to us. This tester combines PXI-based instrumentation and SCXI
switching with a temperature chamber to test entire panels of 66 sensor boards
at a time, while the panel temperature is maintained at +150ºC.
A conveyorized handling system feeds
printed circuit board assemblies (PCBA) to this automated inspection system.
Upon sensing the presence of a PCBA, an elevator lifts the unit upwards, off the
conveyor, turns on the light and inspects the PCBA for proper dispensing of heat
conductive paste from a prior dispensing process. The vision inspection system
utilizes a 3-CCD high-resolution camera to acquire color images of extremely
high fidelity. The presence, amount and location of the heat paste is inspected.
This combined tester and handler is a
semi-automated tester that performs electrical testing, vision
testing and finally packing of surface-mount connectors into
tubes. The electrical test station tests each connector against
micro-shorts at 1200VDC. The vision station uses two cameras,
including a high-resolution camera equipped with a large telecentric lens, to perform over 200 individual measurements on
each connector with a resolution of down to 6μm.
This web-based system
collects real-time information from equipment, from barcode readers (via
in-house databases) and from radio transceivers located throughout the factory
floor of this automotive manufacturer of electronic brake systems. It then
produces, upon request, on-line reports that are displayed in browser windows on
PCs connected to the network. A production server collects data from
mass-customized Line Monitoring units, while a database server and a web server
ensure that data is collected and displayed in a timely manner. See Products
page for more information.
For this very specialized final tester, we combined a
semi-automated dual-bay loader with a light-proof chamber to
enable a very light-sensitive camera to inspect the position,
rotation and accuracy of backlit push buttons for automotive door
panels. Fiber optics is used to bounce light off each unit’s cover
plate to check the color. The tester also features high-speed CAN
communication and barcode printing.
This combined functional- and final tester
performs electrical tests on PCB assemblies. It is extremely flexible in design
and is able to test 12 different models, executing over 900 test steps on each
device under test, at production speeds and with currents exceeding 40A. The
tester features over 370 relays and over 110 loads. In addition to switching
relays, the 18-slot PXI chassis at its core also contains a CPU, a CAN
controller, a data acquisition card and multiplexers. External equipment include
a programmable load, a DMM and a programmable power supply. The test adapter is
easily replaced; the keyboard pulls out and the LCD monitor swings out to give
access to the customized load cards inside.
This
vision inspection system measures the protrusion of connector pins prior to the
reflow soldering of PCB assemblies. An industrial PC and two cameras
automatically sense the presence of a PCB assembly, then proceed to inspect the
pins, after which a marker unit automatically marks passed units with ink. The
jig is easily replaceable to accommodate different models, and the inspection
parameters can likewise be modified by authorized production engineers.