Patent ID: 6228659
Filing Date: 2001-05-08
Classification: B01J,B01L,B82Y,C40B,G01N,Y10T

Abstract:
Apparatus for producing a plurality of arrays of reagent regions, comprising:a work station for supporting a substrate that is partitionable into a plurality of array areas, wherein each array area contains at least one row, each row formed of n>1 reagent regions;a dispensing assembly having a row of N dispensing heads, each disposed to deposit reagent at a selected one of n different reagent regions in different array areas;means for supplying selected reagents to said dispensing heads, for depositing reagents from the dispensing heads onto the array substrate; andmeans for advancing the dispensing assembly successively an incremental distance effective to advance a dispensing head from one reagent region in one array area to a corresponding n-position reagent region in an adjacent array area,whereby successive advances of the dispensing assembly are effective to position each dispensing head successively for deposition at its selected reagent region in each array area.