Electrical testing system including plastic window test chamber and method of using same
AssigneeTemptronic Corporation
InventorErhart E. Demand
Life of this patent
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Abstract
An improved system for and method of testing electrical components under temperature controlled conditions includes a chamber, within which the component can be mounted, for maintaining a predetermined environmental temperature for the component. A window forming part of a wall of the chamber includes a plurality of flexible, substantially transparent, spaced-apart sheets of plastic film. Dry gas is forced through the space between adjacent sheets to prevent moisture from forming on the sheets. A probe needle can be inserted through any random point of the window into contact with the component disposed within the chamber.
Claims8
A system for electrically testing an electrical component under temperature controlled conditions, said system comprising, in combination:
- a chamber adapted to maintain a temperature controlled environment;
- a window defining at least a part of said chamber and comprising a plurality of flexible, juxtaposed, substantially transparent plastic sheets each mounted so that said sheets are substantially taut and adjacent sheets have a spacing therebetween;
- means cooperating with the chamber for forcing a dry gas through each of said spacings between adjacent sheets so as to prevent moisture from condensing on said sheets;
- means disposed in said chamber for mounting said component in said chamber adjacent said window;
- and
- probe means including a probe needle adapted to be pushed from a position outside said chamber, through said window puncturing said sheets, into contact with said component, without appreciably affecting the temperature within said chamber.
A method of electrically testing an electrical component with a testing system of the type including an electrically conductive probe needle when the component is mounted within a chamber of the type for maintaining a temperature controlled environment for said electrical component and including a window comprising a plurality of flexible, juxtaposed, plastic, substantially transparent sheets each mounted so as to be taut and so as to form a space between each pair of adjacent sheets, said method comprising the steps of:
- forcing a dry gas through each of said spaces so as to prevent moisture from condensing on said sheets;
- and
- inserting said probe needle through said sheet into contact with said electrical component without substantially affecting the temperature within said chamber.
Dependencies are inferred from the claim text.