Title: Electrical heating plate with terminal means for high temperature film heater

Abstract: A dielectric substrate is provided with a thin narrow heater strip of multi-layer metallic films of noble metals such as platinum and gold. The film heater is bonded to the substrate and it has terminal means comprising a silver film electrode that is spaced away from the film heater. A metal oxide diffusion barrier such as a tin oxide film bridges the gap between the film heater and the silver electrode and retards the electromigration and mass flow between the film heater and the electrode.

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Inventors: Hurko, Bohdan (Louisville, KY, US)

Application Number: 525846
Filing Date: 1974-11-21
Publication_date: 1976-01-06
Assignee: General Electric Company (Louisville, KY)
Primary Class(es): 219/543 219/466.1, 219/467.1, 338/309
Other Classes:
US Patent Ref:

2628299	Feb, 1953	Gaiser	338/309.
2748234	May, 1956	Clarke et al.	338/309.
2882377	Apr, 1959	Rinehart	219/543.
3067310	Dec, 1962	Walz et al.	219/543.
3067315	Dec, 1962	Hurko	219/543.
3266661	Aug, 1966	Dates	219/543.
3296574	Jan, 1967	Tassara	338/309.
3336465	Aug, 1967	Hurko	219/543.
3757087	Sep, 1973	Bernard	219/543.
3811934	May, 1974	Glaser	117/212.
3813520	May, 1974	Brouneus	219/543.

Other Refs:
Primary Examiner: Mayewsky, Volodymyr Y.
Assistant Examiner:
Attorney: