BAL Test Fixtures: Examples from Customer Projects
Simple Test Jig
Dies ist eine typische Anwendung unseres BAL-Prüfadapters. Die Platine wird von unten kontaktiert, größere Bauteile auf der Oberseite werden dabei im Niederhalter berücksichtigt. In diesem Beispiel soll eine LED auf dem Prüfling während des Tests am Prüfadapter sichtbar sein. Durch einen flexiblen Lichtleiter kann das Licht an die Front des Prüfadapters geführt und dort zuverlässig sichtbar gemacht werden.
Only as large as necessary
Our test adapters and bed-of-nails adapters automatically scale to the size of the respective device under test. This allows each adapter to be manufactured as compactly and cost-effectively as possible. Not only does this reduce manufacturing costs, it also ensures that the test adapter takes up no more space than is actually required.
Interchangeable needle bed
If the test point layout is modified, there is no need to replace the entire test adapter. In most cases, only a new needle bed, carrier plate, and down holder are required. Reconfiguration is quick and straightforward, as both the needle bed and the down holder stamps can be swapped out without tools in just a few simple steps.
Small but mighty
In this case, the test specimen had a size of 14 x 14 mm and had to be contacted at 100 test points with a diameter of 0.35 mm
Double-sided contacting
Double-sided contacting is also possible. The upper needle bed is aligned by the same locating pins as the sinker to achieve the highest possible precision. Since the pilot pins are in the CNC-milled needle bed, the tolerance chain is kept low and tolerances of the additively manufactured components have no influence on the accuracy of the test contact pins.
Wiring through PCB
Individual test fixtures are usually wired by us according to your specifications. You can also wire them yourself if you wish. For several identical test fixtures or if the pitch does not allow manual wiring, we design circuit boards that ensure professional wiring.
