aspirated and the tip is held in the suspension for about 10 seconds after the conclusion of aspiration step 48 to ensure the accuracy of deposition a slow aspiration mode is selected on the rainin instrument co device for example it takes about 2 2 seconds to aspirate dispense 5 micro liters of volume from the dispenser the slowest mode due to the high viscosity of the suspension with anisole diluted phosphor suspension the motor speed is increased correspondingly to improve the accuracy the pipette 22 is then pulled out and exterior phosphor residue is cleaned from the tip the led device 18 is then moved into position step 50 the motion fixtures on the dispenser as shown in fig1 allow full scale movement of the dispenser between the suspension reservoir and the led device 18 over all dimensions while minimizing the shaking distortion of tip position during the phosphor laydown process accurate positioning comprises both accurately aligning the led chip center in the x y plane with the dispensing tip and along the z axis vertically controlling the interface separation 30 between the dispensing tip and the chip to be u02dc 1 mm the relative positioning of the tip and the led is monitored under the microscope 28 for accuracy those skilled in the art will appreciate that the interface separation 30 may vary according to factors such as dispensed media viscosity surface tension volume and the like once in place a viscous droplet of silicone suspension is dispensed and u201c touches off u201d when it contacts the led device step 52 the dispensing is a u201c touch off u201d process due to the viscous nature of the.