Electron beam direct printing apparatus

Details Electron beam direct printing apparatus Electron beam direct printing apparatus

1990-04-20

1991-04-02

Evans, Arthur G.

Boots, shoes, and leggings

346158, 2504922, G01N 2100

Patent

active

050051385

ABSTRACT:
Printing pattern information from a printing pattern CAD is converted and output as deflection scanning data for the X-axis and the Y-axis by a deflection scanning data generating means. An electron beam deflection scanning means executes deflection scanning by an electron beam on a circuit printing base on the basis of the output deflection scanning data. The printing pattern irradiated with the electron beam is input to a bit map memory by dots which correspond to the points which are irradiated with the electron beam. A radiation control means can ascertain whether or not the point which is to be irradiated with the electron beam has already been subjected to beam irradiation at real time by consecutively reading out the dot information in the bit map memory at the address corresponding to the deflection scanning data. If there is no dot, a dot is written in the bit map memory simultaneously with beam irradiation, while if there is a dot, a blanking means outputs a control signal for cutting off the electron beam. Thus, overlap in printing pattern is detected at real time, thereby ensuring the avoidance of multiple beam radiation, namely, multiple exposure.

REFERENCES:
patent: 3810165 (1974-05-01), Rosenthal
patent: 3815094 (1974-06-01), Smith

Affiliated with

Also associated with

Rating

Electron beam direct printing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electron beam direct printing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron beam direct printing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-330777