Automated test platform for testing short circuits
View Patent ↗An automated test platform for testing a first device under test includes N voltage sources for providing N different voltages. A cross matrix switching system is coupled to the N voltage sources, the cross matrix switch being configured to provide the N different voltages to M discrete test points within the first device under test, wherein M is larger than N. An N voltage measuring system is coupled to the first device under test, the N voltage measuring system being configured to measure the voltage potential present on the M discrete test points.
1. An automated test platform for testing a first device under test, the automated test platform comprising:
N voltage sources for providing N different voltages;
a cross matrix switching system coupled to the N voltage sources, the cross matrix switching system configured to provide the N different voltages to M discrete test points within the first device under test, wherein M is larger than N, and wherein the N different voltages includes at least a first voltage from a first voltage source of the N voltage sources and a second voltage from a second voltage source of the N voltage sources;
an automated switch activation system configured to effectuate a switching sequence on the cross matrix switching system that selectively applies the N different voltages to the M discrete test points;
an N voltage measuring system coupled to the first device under test, the N voltage measuring system configured to measure the voltage potential present on the M discrete test points; and
a processor configured to determine whether two or more conductive traces of the first device under test are shorted, wherein an alternating voltage potential that is different between the first voltage from the first voltage source and the second voltage from the second voltage source measured on the M discrete test points indicates a lack of a short of the two or more conductive traces of the first device under test, and wherein a lack of the alternating voltage potential that is different between the first voltage from the first voltage source and the second voltage from the second voltage source measured on the M discrete test points indicates the short of the two or more conductive traces of the first device under test.
2. The automated test platform of claim 1 wherein the switching sequence is a static switching sequence.
3. The automated test platform of claim 1 wherein the switching sequence is an automated switching sequence.
4. The automated test platform of claim 1 wherein the cross matrix switching system includes N cross point switches, wherein each N cross point switch is coupled to one of the N voltage sources.
5. The automated test platform of claim 4 wherein each of the N cross point switches includes M outputs, wherein each of the M outputs is selectively coupleable to the M discrete test points within the first device under test.
6. The automated test platform of claim 1 wherein the cross matrix switching system is configured to releasable engage the first device under test.
7. The automated test platform of claim 1 wherein the N voltage measuring system includes a plurality of analog-to-digital converters coupled to the M discrete test points within the first device under test.
8. The automated test platform of claim 1 wherein the N voltage measuring system is configured to releasable engage the first device under test.
9. The automated test platform of claim 1 further comprising:
an automated DUT swap system configured to:
uncouple the first device under test from the automated test platform, and
couple a second device under test to the automated test platform.
10. An automated test platform for testing a first device under test, the automated test platform comprising:
N voltage sources for providing N different voltages;
a cross matrix switching system coupled to the N voltage sources, the cross matrix switching system configured to provide the N different voltages to M discrete test points within the first device under test, wherein M is larger than N, and wherein the N different voltages include at least a first voltage from a first voltage source of the N voltage sources and a second voltage from a second voltage source of the N voltage sources;
an automated switch activation system configured to effectuate a switching sequence on the cross matrix switching system that selectively applies the N different voltages to the M discrete test points;
an N voltage measuring system coupled to the first device under test, the N voltage measuring system configured to measure the voltage potential present on the M discrete test points, wherein the N voltage measuring system includes a plurality of analog-to-digital converters coupled to the M discrete test points within the first device under test; and
a processor configured to determine whether two or more conductive traces of the first device under test are shorted, wherein an alternating voltage potential that is different between the first voltage from the first voltage source and the second voltage from the second voltage source measured on the M discrete test points indicates a lack of a short of the two or more conductive traces of the first device under test, and wherein a lack of the alternating voltage potential that is different between the first voltage from the first voltage source and the second voltage from the second voltage source measured on the M discrete test points indicates the short of the two or more conductive traces of the first device under test.
11. The automated test platform of claim 10 wherein the switching sequence is a static switching sequence.
12. The automated test platform of claim 10 wherein the switching sequence is an automated switching sequence.
13. The automated test platform of claim 10 wherein the cross matrix switching system includes N cross point switches, wherein each N cross point switch is coupled to one of the N voltage sources.
14. The automated test platform of claim 13 wherein each of the N cross point switches includes M outputs, wherein each of the M outputs is selectively coupleable to the M discrete test points within the first device under test.
15. The automated test platform of claim 10 further comprising:
an automated DUT swap system configured to:
uncouple the first device under test from the automated test platform, and
couple a second device under test to the automated test platform.
16. An automated test platform for testing a first device under test, the automated test platform comprising:
N voltage sources for providing N different voltages;
a cross matrix switching system coupled to the N voltage sources, the cross matrix switching system configured to provide the N different voltages to M discrete test points within the first device under test, wherein M is larger than N, and wherein the N different voltages include at least a first voltage from a first voltage source of the N voltage sources and a second voltage from a second voltage source of the N voltage sources;
an automated switch activation system configured to effectuate a switching sequence on the cross matrix switching system that selectively applies the N different voltages to the M discrete test points, wherein the switching sequence includes one of:
a static switching sequence, and
an automated switching sequence;
an N voltage measuring system coupled to the first device under test, the N voltage measuring system configured to measure the voltage potential present on the M discrete test points, wherein the N voltage measuring system includes a plurality of analog-to-digital converters coupled to the M discrete test points within the first device under test;
a processor configured to determine whether two or more conductive traces of the first device under test are shorted, wherein an alternating voltage potential that is different between the first voltage from the first voltage source and the second voltage from the second voltage source measured on the M discrete test points indicates a lack of a short of the two or more conductive traces of the first device under test, and wherein a lack of the alternating voltage potential that is different between the first voltage from the first voltage source and the second voltage from the second voltage source measured on the M discrete test points indicates the short of the two or more conductive traces of the first device under test; and
an automated DUT swap system configured to: uncouple the first device under test from the automated test platform, and couple a second device under test to the automated test platform.
17. The automated test platform of claim 16 wherein the cross matrix switching system includes N cross point switches, wherein each N cross point switch is coupled to one of the N voltage sources.
18. The automated test platform of claim 16 wherein each of the N cross point switches includes M outputs, wherein each of the M outputs is selectively coupleable to the M discrete test points within the first device under test.
19. The automated test platform of claim 16 wherein the cross matrix switching system is configured to releasable engage the first device under test and the N voltage measuring system is configured to releasable engage the first device under test.