Electrostatic discharge detector
First Claim
1. In a detector for detecting and indicating prior occurrence of an electrostatic discharge event of any polarity in an electronic component or assembly device having electrical terminals, the combination of:
- a non-destructive direct reading display element which switches indication from a first state to a second state on exposure to a change in voltage level;
an electrostatic discharge sensor for sensing electrostatic discharge events of either polarity resulting from build-up of an electrostatic potential and a discharge of said electrostatic potential;
circuit means for connecting said sensor to said display element to switch said indicator from said first state to said second state;
means for maintaining display said element in said second state thereby subsequently indicating the earlier occurrence of an electrostatic discharge event; and
electrical connectors for direct connection of said sensor to the electrical terminals of the device to be monitored.
0 Assignments
0 Petitions
Accused Products
Abstract
A detector for detecting electrostatic discharge events in an electronic component, assembly or system and including a display element which produces an immediate indication on exposure to a change in voltage level, an electrostatic discharge sensor, and circuit means for connecting said sensor to said display element. In one embodiment, the detector and the board or other device to be monitored are mounted in a housing having a visual access window with the display element of the detector viewable through the access window and with the detector positioned at the electronic device being monitored.
56 Citations
21 Claims
-
1. In a detector for detecting and indicating prior occurrence of an electrostatic discharge event of any polarity in an electronic component or assembly device having electrical terminals, the combination of:
-
a non-destructive direct reading display element which switches indication from a first state to a second state on exposure to a change in voltage level; an electrostatic discharge sensor for sensing electrostatic discharge events of either polarity resulting from build-up of an electrostatic potential and a discharge of said electrostatic potential; circuit means for connecting said sensor to said display element to switch said indicator from said first state to said second state; means for maintaining display said element in said second state thereby subsequently indicating the earlier occurrence of an electrostatic discharge event; and electrical connectors for direct connection of said sensor to the electrical terminals of the device to be monitored. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. In a detector for detecting and indicating prior occurrence of an electrostatic discharge event of any polarity in an electronic component or assembly device, the combination of:
-
a housing having a visual access window; a detector carrier having a display element which switches indication from a first state to a second state on exposure to a change in voltage level, an electrostatic discharge sensor for sensing electrostatic discharge events of either polarity resulting from build-up of an electrostatic potential and a discharge of said electrostatic potential, circuit means for connecting said sensor to said display element to switch said indicator from said first state to said second state, and means for maintaining said display element in said second state thereby subsequently indicating the earlier occurrence of an electrostatic discharge event; and an electronic device to be monitored; said housing including means for mounting said detector carrier and electronic device therein, with said display element viewable through said access window and with said carrier positioned at said device.
-
Specification