公开(公告)号：DE3375252D1

公开(公告)日：1988-02-11

申请号：DE3375252

申请日：1983-08-11

Applicant: IBM DEUTSCHLAND ,  IBM

Inventor： BEHRINGER UWE DR DIPL PHYS ,  BOHLEN HARALD DIPL PHYS ,  KULCKE WERNER DR DIPL PHYS ,  NEHMIZ PETER DR DIPL PHYS

IPC: H01L21/027 ,  G03F7/20 ,  H01J37/30 ,  H01J37/317

Abstract: The appts. projects a shadow image of a mask a small distance from the surface. The mask (13) is exposed to a homogeneous collimated beam of electrons (15) emitted by an unstructed photocathode (16) of large area. The electron beam is collimated by an electric field between photocathode (16) and the surface (12) being exposed. The surface of the photocathode essentially corresponds to the surface of the mask being exposed. Alternatively, the surface of the photocathode corresponds chips and exposure occurs in steps. The electrical potential of the mask corresponds to an equipotential surface of the electrical field between the photocathode and the surface being exposed, which acts as anode.

公开(公告)号：DE2860937D1

公开(公告)日：1981-11-12

申请号：DE2860937

申请日：1978-07-19

Applicant: IBM

Inventor： BOHLEN HARALD DIPL PHYS ,  GRESCHNER JOHANN DR DIPL PHYS ,  KULCKE WERNER DR DIPL PHYS ,  NEHMIZ PETER DR DIPL PHYS

IPC: H01L21/027 ,  G03F1/00 ,  G03F1/20 ,  G03F7/20 ,  H01J37/30 ,  H01L21/00

Abstract: A method of exposure of a target object by means of corpuscular beam shadow printing through a mask with several complementary zones wherein the beam, shiftable and tiltable about a point in the mask plane and arranged in parallel at a small distance from the target object, is first impinged upon a first of the complementary zones, then the object is shifted under a second of the complementary zones, and the positioning of the beam is changed so that any deviation of the actual position of the second area of the target object to be exposed from its nominal position is determined and compensated for by tilting the beam about a point substantially in the mask plane.