(19)
(11)
EP 0 263 839 A1
(12)
(43)
Date of publication:
20.04.1988
Bulletin 1988/16
(21)
Application number:
87901437.0
(22)
Date of filing:
16.02.1987
(51)
International Patent Classification (IPC):
H01J
37/
20
( . )
H01J
37/
28
( . )
(86)
International application number:
PCT/EP1987/000077
(87)
International publication number:
WO 1987/005150
(
27.08.1987
Gazette 1987/19)
(84)
Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE
(30)
Priority:
18.02.1986
GB 19860004004
03.12.1986
GB 19860028900
(71)
Applicant:
CAMBRIDGE INSTRUMENTS LIMITED
Cambridge CB3 8EL (GB)
(72)
Inventor:
SHAH, Jitendra, Shantilal
Chew Magna Bristol BS18 8QQ (GB)
(74)
Representative:
Foster, David Martyn
MATHISEN MACARA & CO. The Coach House 6-8 Swakeleys Road
Ickenham Uxbridge UB10 8BZ
Ickenham Uxbridge UB10 8BZ (GB)
(54)
SPECIMEN CHAMBER FOR SCANNING ELECTRON BEAM INSTRUMENTS