Title: Universal burn-in fixture

Abstract: A universal burn-in fixture including a printed circuit board having a plurality of regularly spaced areas and with each area receiving a semiconductor socket and with the socket having lead members for connection to the board through a plurality of holes and with the majority of the holes surrounded by a conductive pad area which form islands and with each pad surrounded by an insulating area and with the remaining portion of the printed circuit board forming a conductive land area and with substantially the entire printed circuit board covered by a resistive coating to produce resistances between each pad and the surrounding land, to provide for desired resistances between a socket lead and the land area. A voltage is coupled to the land area to supply the desired burn-in voltage at the socket leads.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Meany, David P. (Anaheim, CA, US)

Application Number: 453858
Filing Date: 1974-03-22
Publication_date: 1976-02-17
Assignee: MCM Industries, Inc. (Anaheim, CA)
Primary Class(es): 361/765 174/254, 174/260, 338/308, 361/777
Other Classes:
US Patent Ref:

3344387	Sep, 1967	Kinkel et al.	338/308.
3474304	Oct, 1969	Currin et al.	338/308.
3487268	Dec, 1969	Ljungdell et al.	338/308.
3601745	Aug, 1971	Helgeland	338/308.
3605061	Sep, 1971	Martin	317/101.
3648364	Mar, 1972	Endo	338/308.
3784951	Jan, 1974	Steidel	338/308.
3832602	Aug, 1974	Engelhard et al.	317/101.

Other Refs:
Primary Examiner: Scott, James R.
Assistant Examiner:
Attorney: Schwartz; Charles H.