Burn-in clock monitor

Details Burn-in clock monitor Burn-in clock monitor

1982-09-29

1985-03-26

Envall, Jr., Roy N.

Electric heating

Heating devices

Combined with diverse-type art device

219385, H05B 100

Patent

active

045075441

ABSTRACT:
The several clock lines on a burn-in board are monitored by diode ANDing the clock lines to one or two monitor lines, the ANDing circuitry being mounted on the burn-in board and each monitor line being connected through the burn-in chamber back wall to a detection circuit for detecting presence, level, and/or other quality of the signal on the monitor line and giving an indication and sounding an alarm when the desired monitor signal quality is absent.

REFERENCES:
patent: 2978641 (1961-04-01), Voegtlen
patent: 3643247 (1972-02-01), Ratcliffe
patent: 3679970 (1972-07-01), Winters
patent: 4374317 (1983-02-01), Bradshaw
Reliability, Inc., "Criteria IV Burn-In System".

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