Display substrate, conductor, and insulator

Details Display substrate, conductor, and insulator Display substrate, conductor, and insulator

1998-12-16

2000-02-29

Jones, Deborah

Stock material or miscellaneous articles

Composite

Of quartz or glass

428428, 428432, 428434, B32B 904

Patent

active

060307072

ABSTRACT:
The present invention aims to solve problems involved in the formation of a conductive or insulating layer in a pattern form by photolithography, i.e., an environmental problem associated with handling of a solvent and a problem associated with wastewater treatment in the development with an aqueous alkaline solution. A method for forming a conductive layer (an anode bus 3) or an insulating layer (a barrier 1) on a glass substrate by photolithography using a photosensitive slurry solution prepared by mixing a low-melting glass powder as a binder and a conductive or insulating powder into a PVA-based, water-soluble photosensitive solution, wherein the content of B.sub.2 O.sub.3 component in the whole low-melting glass powder is closely regulated to not more than 6% by weight. This enables coating without gelation of PVA. Unlike the conventional photolithography using a solvent type photosensitive slurry, the method of the present invention can solve the environmental problem associated with handling a solvent and the problem associated with wastewater treatment in the development with an aqueous alkaline solution.

REFERENCES:
patent: 3947260 (1976-03-01), Salisbury
patent: 4590148 (1986-05-01), Takahashi et al.
patent: 4598037 (1986-07-01), Felten
patent: 5009972 (1991-04-01), Higuchi et al.
patent: 5264758 (1993-11-01), Iijima et al.
patent: 5286269 (1994-02-01), Paschke et al.
patent: 5493175 (1996-02-01), Kani

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