Metal working – Barrier layer or semiconductor device making – Barrier layer device making
Patent
1976-03-11
1977-11-01
Lazarus, Richard B.
Metal working
Barrier layer or semiconductor device making
Barrier layer device making
316 19, H01J 918
Patent
active
040558770
ABSTRACT:
In the manufacture of cathode ray tubes, the neck of the tube consisting of a lead-containing glass is closed by a glass base plate having sealed therein a number of contact pins on which an electrode system for generating at least two electron beams is mounted. The periphery of the base plate is sealed to the wall of the neck of the tube by local heating, the base plate being supported by a supporting member having guide holes and reference holes cooperating with the contact pins to determine the centering and the rotational position of the electrode system relative to a reference system of axes. In order to prevent (or inhibit) the lead released from the lead-containing glass during sealing from penetrating into the reference holes, said reference holes are substantially spaced from the base plate. This is realized in a simple manner by means of a supporting member in which each reference hole is coaxial with a guide hole and spaced from the surface of the member supporting the base plate.
REFERENCES:
patent: 2680824 (1954-06-01), Beggs
patent: 3504412 (1970-04-01), Kraner et al.
patent: 3520040 (1970-07-01), Munday et al.
Lazarus Richard B.
Trifari Frank R.
U.S. Philips Corporation
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