Method and apparatus for the testing of active or passive electr

Details Method and apparatus for the testing of active or passive electr Method and apparatus for the testing of active or passive electr

1985-10-04

1988-11-01

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324 73R, 324158R, G01R 3102, G01R 3128

Patent

active

047822910

ABSTRACT:
A batch processing system and unit for testing electrical components in a sub-zero environment includes an isothermal chamber which mates easily with the test heads associated with conventional automatic testing equipment and which eliminates thermal gradients and variable test conditions as well as eliminating frost contamination of test heads, costly fixturing for the various types of semiconductor chip packages or passive components and static charge. The utilization of a single isothermal soak chamber provides that all devices under test and a test socket mounted on a card secured to a fixture at the bottom of the chamber are cooled to the same temperature by moisture-free gas introduced into the chamber. It is a feature of the subject invention that the test head, located outside the chamber, is well insulated from the chamber. The chamber, with all internal parts and devices, is cooled down until all parts are at the same temperature. At this time, the devices in the chamber are plugged into the socket, tested and moved to another portion of the chamber, such that all testing is done in an isothermal environment.

REFERENCES:
patent: 3949295 (1976-04-01), Moorshead
patent: 4115736 (1978-09-01), Tracy
patent: 4172993 (1979-10-01), Leach
patent: 4478352 (1984-10-01), Amundson et al.
patent: 4588092 (1986-05-01), Moechnig et al.

Affiliated with

Also associated with

Rating

Method and apparatus for the testing of active or passive electr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for the testing of active or passive electr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for the testing of active or passive electr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-892870