Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
140 words
An RF-shielded hybrid board which comprises a printed circuit board (1) of an insulating material, with foils on both sides, components placed on one side of the printed circuit board, and an RF-shield housing formed of metal sheet and fitted around at least part of the circuit, characterized in that the RF-shield of the circuit is made up on the one hand of a cup-like cover (5) the peripheral area of which extends substantially around the edge of the printed circuit board (1), with the exception of the area of the connectors in the printed circuit board, and which is placed over the components, and on the other hand of an earth foil (2a), facing away from the components of the printed circuit board, which has been soldered by its edge to the peripheral area (5a) of the cover (5).
Claim 2
Dependent Claim
140 words
An RF-shielded hybrid board which comprises a printed circuit board (1) of an insulating material, with foils on both sides, components placed on one side of the printed circuit board, and an RF-shield housing formed of metal sheet and fitted around at least part of the circuit, characterized in that the RF-shield of the circuit is made up on the one hand of a cup-like cover (5) the peripheral area of which extends substantially around the edge of the printed circuit board (1), with the exception of the area of the connectors in the printed circuit board, and which is placed over the components, and on the other hand of an earth foil (2a), facing away from the components of the printed circuit board, which has been soldered by its edge to the peripheral area (5a) of the cover (5).
Claim 3
Dependent Claim
62 words
A hybrid circuit according to Claim 1, characterized in that in the edge (5a) of the peripheral area of the cover (5) there have been made two or more notches (7, 8) which mate with corresponding protrusions (3, 4) in the printed circuit board in order to determine the position of the printed circuit board (1) in relation to the cover (5).
Claim 4
Dependent Claim
47 words
A hybrid circuit according to Claim 1, characterized in that in the area of the connector pins (2) there has been made a notch (6) in the peripheral area of the cover (5), the depth of the notch exceeding the thickness of the printed circuit board (1).
Claim 5
Dependent Claim
57 words
A hybrid circuit according to Claim 3, characterized in that the connectors, i.e. legs, of the circuit consist of projections (2) in the edge of the printed circuit board, the projections extending beyond the cover (5) and having each on one side the earth conductor (2a) and on the other side at least one conducting conductor (2b).