Laser targeting mechanism
View Patent ↗An automated test equipment system includes a peripheral including first mechanical alignment features; a test head including second mechanical alignment features arranged in a pattern corresponding to the first mechanical alignment features and configured to engage the first mechanical alignment features. The automated test equipment system also includes a laser assisted alignment system including laser devices mounted to the peripheral and operable to emit laser beams; target plates mounted to the test head and including target symbols visible on surfaces of the target plates. The target symbols are arranged in a pattern corresponding to the laser devices such that, when laser beams from the laser devices are substantially aligned with the target symbols, the first mechanical alignment features are substantially aligned with the second mechanical alignment features.
1. An automated test equipment system comprising:
a peripheral comprising first mechanical alignment features;
a test head comprising second mechanical alignment features arranged in a pattern corresponding to the first mechanical alignment features and configured to engage the first mechanical alignment features;
a laser assisted alignment system comprising:
target plates mounted to the peripheral and comprising target symbols visible on surfaces of the target plates, and
laser devices mounted to the test head and operable to emit laser beams, wherein the laser devices are arranged in a pattern corresponding to the target symbols such that, when laser beams from the laser devices are substantially aligned with the target symbols, the first mechanical alignment features are substantially aligned with the second mechanical alignment features; and
wherein the laser assisted alignment system is configured to provide for alignment of the first mechanical alignment features with the second mechanical alignment features in five degrees-of-freedom.
2. The automated test equipment system of claim 1 , wherein the peripheral comprises a first surface and a docking plate mounted to the first surface, and wherein the first mechanical alignment features are mounted to the docking plate.
3. The automated test equipment system of claim 2 , wherein the target plates are mounted to the docking plate.
4. The automated test equipment system of claim 1 , wherein the test head comprises a first surface, and a device interface board assembly (DIB) assembly mounted to the first surface, and wherein the second mechanical alignment features are mounted to the DIB assembly.
5. The automated test equipment system of claim 4 , wherein the laser devices are mounted to the first surface of the test head in positions spaced apart from the DIB assembly.
6. The automated test equipment system of claim 1 , wherein the target plates comprise spirit levels.
7. The automated test equipment system of claim 1 , wherein the first mechanical alignment features comprise alignment pins, and wherein the second mechanical alignment features comprise bushings configured to engage the alignment pins.
8. The automated test equipment system of claim 1 , wherein the peripheral is selected from the group consisting of a handler and a prober.
9. The automated test equipment system of claim 1 , wherein the peripheral is a vertically oriented peripheral configured for testing electronic components in a vertical orientation.