Error detection in chemical array fabrication
First Claim
Patent Images
1. A method of forming an addressable array of chemical moieties on a substrate, comprising:
- (a) for each of multiple locations on the substrate, depositing a reagent drop set during a cycle so as to attach a corresponding moiety for that location; and
(b) repeating step (a) if required, until the addressable array is formed;
wherein, for each of multiple locations, a multi-dispenser drop group is deposited over one or more cycles for a corresponding location which group includes drops which are deposited from different dispensers;
the method additionally comprising;
(c) depositing and detecting drops at respective separate locations on the substrate from different dispensers which deposit a multi-dispenser drop group.
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Abstract
A method, apparatus, and computer program product, for forming an addressable array of chemical moieties on a substrate. The method may include, for each of multiple locations on the substrate, depositing a reagent drop set during a cycle so as to attach a corresponding moiety for that location. This may be repeated as required, until the addressable array is formed. Test location are also formed by depositing drops from dispensers in a manner which can facilitate detection of dispenser errors.
63 Citations
58 Claims
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1. A method of forming an addressable array of chemical moieties on a substrate, comprising:
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(a) for each of multiple locations on the substrate, depositing a reagent drop set during a cycle so as to attach a corresponding moiety for that location; and
(b) repeating step (a) if required, until the addressable array is formed;
wherein, for each of multiple locations, a multi-dispenser drop group is deposited over one or more cycles for a corresponding location which group includes drops which are deposited from different dispensers;
the method additionally comprising;
(c) depositing and detecting drops at respective separate locations on the substrate from different dispensers which deposit a multi-dispenser drop group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of forming an addressable array of chemical moieties on a substrate, comprising:
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(a) for each of multiple locations on the substrate, depositing a reagent drop set during a cycle so as to attach a corresponding moiety for that location; and
(b) repeating step (a) if required;
wherein, for each of multiple locations, a multi-dispenser drop group is deposited over one or more cycles for a corresponding location which group includes drops which are deposited from different dispensers;
the method additionally comprising;
(c) depositing and detecting drops from different dispensers which deposit a multi-dispenser drop group, onto the substrate at respective separate locations in a test pattern area separate from the array. - View Dependent Claims (21, 22, 23, 24)
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25. A method of forming an addressable array of polymers on a substrate, comprising:
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(a) for each of multiple locations on the substrate, depositing a reagent drop set during a cycle so as to attach a monomeric unit of the corresponding polymer for that location; and
(b) repeating step (a), until the addressable array is formed;
wherein, for each of multiple locations, a multi-dispenser drop group is deposited over one or more cycles for a corresponding location which group includes drops which are deposited from different dispensers;
the method additionally comprising;
(c) depositing and detecting drops at respective separate locations on the substrate from different dispensers which deposit a multi-dispenser drop group. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A method of forming multiple addressable arrays of chemical moieties on a substrate, comprising for each array:
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(a) for each of multiple locations on the substrate, depositing a reagent drop set during a cycle so as to attach a corresponding moiety for that location; and
(b) repeating step (a) if required, until the addressable array is formed;
wherein multiple dispensers are used to dispense drops to form the array, the method additionally comprising;
(c) depositing and detecting drops from the different dispensers at respective separate locations on the substrate, wherein the drops are deposited at a separate test pattern area between arrays with the number of locations of the test pattern area during any one cycle being less than one tenth the number of locations in the smallest of the arrays which the test pattern area is between. - View Dependent Claims (39)
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40. An apparatus for forming an addressable array on a substrate, comprising:
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(a) a deposition system having multiple dispensers each of which can dispense a reagent drop;
(b) a transport system to move at least one of the deposition system or the substrate;
(c) a drop detector;
(d) a processor which controls the deposition system and the transport system such that;
(i) for each of multiple locations on the substrate, a reagent drop set is deposited during a cycle so as to attach a corresponding moiety for that location; and
(ii) step (i) will be repeated if required, until the addressable array is formed;
wherein, for each of multiple locations, a multi-dispenser drop group is deposited over one or more cycles for a corresponding location which group includes drops which are deposited from different dispensers and which drops are not independently detected at the corresponding location;
and such that;
(iii) drops from different dispensers which deposit a multi-dispenser drop group will be deposited and detected by the detector at respective separate locations on the substrate. - View Dependent Claims (41, 42, 43, 44, 45)
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46. An apparatus for forming an addressable array on a substrate, comprising:
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(a) a deposition system having multiple dispensers each of which can dispense a reagent drop;
(b) a transport system to move at least one of the deposition system or the substrate;
(c) a drop detector;
(d) a processor which controls the deposition system and the transport system such that;
(i) for each of multiple locations on the substrate, a reagent drop set is deposited during a cycle so as to attach a corresponding moiety for that location; and
(ii) step (i) will be repeated if required, until the addressable array is formed;
wherein, for each of multiple locations, a multi-dispenser drop group is deposited over one or more cycles for a corresponding location which group includes drops which are deposited from different dispensers and which drops are not independently detected at the corresponding location;
and such that;
(iii) drops from different dispensers which deposit a multi-dispenser drop group will be deposited and detected by the detector at respective separate locations on the substrate in a test pattern area separate from the array. - View Dependent Claims (47)
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48. An apparatus for forming an addressable array on a substrate, comprising:
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(a) a deposition system having multiple dispensers each of which can dispense a reagent drop;
(b) a transport system to move at least one of the deposition system or the substrate;
(c) a drop detector;
(d) a processor which controls the deposition system and the transport system such that;
(i) for each of multiple locations on the substrate, a reagent drop set is deposited during a cycle so as to attach a corresponding moiety for that location; and
(ii) repeating step (i) until the addressable array is formed;
wherein, for each of multiple locations, a multi-dispenser drop group is deposited over one or more cycles for a corresponding location which group includes drops which are deposited from different dispensers;
and such that;
(iii) drops from different dispensers which deposit a multi-dispenser drop group will be deposited and detected by the detector at respective separate locations on the substrate. - View Dependent Claims (49, 50, 51, 52, 53)
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54. A computer program product, comprising:
- a computer readable storage medium having a computer program stored thereon which, when loaded into a computer communicating with an apparatus for forming an addressable array on a substrate, performs the steps of;
(a) for each of multiple locations on the substrate, depositing a reagent drop set during a cycle so as to attach a corresponding moiety for that location; and
(b) repeating step (a) if required, until the addressable array is formed;
wherein, for each of multiple locations, a multi-dispenser drop group is deposited over one or more cycles for a corresponding location which group includes drops which are deposited from different dispensers and which drops are not independently detected at the corresponding location;
the steps additionally including;
(c) depositing and detecting drops at respective separate locations on the substrate from different dispensers which deposit a multi-dispenser drop group. - View Dependent Claims (55, 56, 57, 58)
- a computer readable storage medium having a computer program stored thereon which, when loaded into a computer communicating with an apparatus for forming an addressable array on a substrate, performs the steps of;
Specification