Substrate

Details Substrate Substrate

1991-07-11

1993-10-26

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428141, 428156, 428209, 428210, 428195, 4283044, 428601, 428604, 428901, B32B 300

Patent

active

052564649

ABSTRACT:
A substrate for electronic components has a layer of material covering at least a portion of the substrate. Recesses are formed in a layer of material and located in a pattern relative to each other to form a predetermined temperature distribution across the layer of material. The layer of material can be formed as a resistive film for a heating resistor element. The shape, size and pattern of the recesses are selected to balance the thermal stress across the surface of the layer of material.

REFERENCES:
patent: 4196622 (1980-04-01), Peter
patent: 4783358 (1988-11-01), Ikeda et al.

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