PROCESS FOR MANUFACTURING SELF-ASSEMBLED BLOCK COPOLYMER FILMS
First Claim
1. Process for manufacturing self-assembled block copolymer films, having two or more blocks, comprising the following steps:
- A. having a substrate;
B. distributing a first solution containing at least one block copolymer onto the substrate so as to at least partially coat a surface of the substrate, obtaining a first intermediate product;
C. making a step of self-assembling said at least one block copolymer by heating the first intermediate product;
where the self-assembling step C is made through a first RTP process of Rapid Thermal Processing comprising the following substeps;
C.1 heating the first intermediate product up to a first target temperature, ranging from a glass transition temperature Tg of said at least one block copolymer to an order-disorder transition temperature TODT of said at least one block copolymer, through a first temperature rising ramp having a first rate of temperature change not lower than 5°
C./second;
C.2 maintaining the first intermediate product at said first target temperature for a first time interval not longer than 60 minutes, whereby a sample is obtained on the surface of which a self-assembled film of said at least one block copolymer has been made;
C.3 cooling the sample down to the ambient temperature through a first temperature descending ramp.
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Abstract
Self-assembled block copolymer films having two or more blocks are manufactured by distributing a solution containing at least one block copolymer onto the substrate so as to partially coat a substrate surface, obtaining an intermediate product. A block copolymer is self-assembled by heating the intermediate product. The self-assembling step includes Rapid Thermal Processing, which is performed by heating the intermediate product up to a first target temperature, ranging from a glass transition temperature to an order-disorder transition temperature of the block copolymer, through a temperature rising ramp having a rate of temperature change not lower than 5° C./second; maintaining the intermediate product at the target temperature for a time interval not longer than 60 minutes, whereby a sample is obtained on the surface of which a self-assembled film of the block copolymer has been made; and cooling the sample down to the ambient temperature through a temperature descending ramp.
40 Citations
21 Claims
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1. Process for manufacturing self-assembled block copolymer films, having two or more blocks, comprising the following steps:
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A. having a substrate; B. distributing a first solution containing at least one block copolymer onto the substrate so as to at least partially coat a surface of the substrate, obtaining a first intermediate product; C. making a step of self-assembling said at least one block copolymer by heating the first intermediate product; where the self-assembling step C is made through a first RTP process of Rapid Thermal Processing comprising the following substeps; C.1 heating the first intermediate product up to a first target temperature, ranging from a glass transition temperature Tg of said at least one block copolymer to an order-disorder transition temperature TODT of said at least one block copolymer, through a first temperature rising ramp having a first rate of temperature change not lower than 5°
C./second;C.2 maintaining the first intermediate product at said first target temperature for a first time interval not longer than 60 minutes, whereby a sample is obtained on the surface of which a self-assembled film of said at least one block copolymer has been made; C.3 cooling the sample down to the ambient temperature through a first temperature descending ramp. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21)
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14. Self-assembled block copolymer film, having two or more blocks, manufactured through a manufacturing process comprising the following steps:
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A. having a substrate; B. distributing a first solution containing at least one block copolymer onto the substrate so as to at least partially coat a surface of the substrate, obtaining a first intermediate product; C. making a step of self-assembling said at least one block copolymer by heating the first intermediate product; wherein the self-assembling step C is made through a first RTP process of Rapid Thermal Processing comprising the following substeps; C.1 heating the first intermediate product up to a first target temperature, ranging from a glass transition temperature Tg of said at least one block copolymer to an order-disorder transition temperature TODT of said at least one block copolymer, through a first temperature rising ramp having a first rate of temperature change not lower than 5°
C./second;C.2 maintaining the first intermediate product at said first target temperature for a first time interval not longer than 60 minutes, whereby a sample is obtained on the surface of which a self-assembled film of said at least one block copolymer has been made; C.3 cooling the sample down to the ambient temperature through a first temperature descending ramp.
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Specification