Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent
1982-10-05
1985-11-05
James, Andrew J.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
357 81, 357 68, 357 80, 361414, H01L 2314, H01L 2340, H01L 2348, H01L 2304
Patent
active
045517479
ABSTRACT:
A carrier apparatus (40) for mounting logic components on the surface of a circuit board (41). The carrier apparatus (40) includes a housing structure defining top and bottom surfaces and further defining a cavity (50) in the bottom surface for receipt of a logic component (51). A recessed cover portion (56) is attached to the housing so as to enclose the cavity (50) thereby effectively sealing the logic component (51) in the housing. The carrier apparatus (40) includes means for mounting the housing on a circuit board such that the cover (56) does not make contact with the surface of the circuit board (41). The housing further includes means for electrically interconnecting the logic component (51) to the circuit board (41).
In yet another embodiment, a carrier apparatus (100) for mounting logic components on the surface of a circuit board (41) is disclosed which utilize ground and voltage planes together with alternating signal (118) and AC ground (121) traces so as to effectuate coplanar/strip-line and coplanar/microstrip transmission line environments along portions of the signal traces (118). Consequently, this results in signal lines having a controlled impedance environment and minimized parasitic shunt capacitance.
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Gilbert Barry K.
Schwab Daniel J.
Clark Sheila V.
James Andrew J.
Mayo Foundation
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