Methods and compositions for the formation of recessed electrical features on a substrate
First Claim
Patent Images
1. A process for forming a solar cell conductive feature, comprising:
- (a) direct printing a precursor composition comprising at least one of metallic particles comprising a metal or a metal precursor compound to the metal; and
(B) heating the precursor composition to form the solar cell conductive feature on the substrate, wherein the solar cell conductive feature has a feature width of not greater than 200 μ
m, a thickness greater than about 2 μ
m, and a conductivity that is no less than 10 percent the conductivity of the equivalent pure metal.
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Abstract
Precursor compositions having a low conversion temperature and methods for the fabrication of recessed electrical features from the precursor compositions. The electrical features can be conductors, resistors and dielectric features. The precursor compositions are deposited into recessed features, such as trenches, formed in a substrate and are reacted at a low temperature to form electrical features having good electrical and mechanical properties. The substrate can be a low temperature substrate, such as an organic substrate.
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Citations
45 Claims
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1. A process for forming a solar cell conductive feature, comprising:
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(a) direct printing a precursor composition comprising at least one of metallic particles comprising a metal or a metal precursor compound to the metal; and
(B) heating the precursor composition to form the solar cell conductive feature on the substrate, wherein the solar cell conductive feature has a feature width of not greater than 200 μ
m, a thickness greater than about 2 μ
m, and a conductivity that is no less than 10 percent the conductivity of the equivalent pure metal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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Specification