IT1042823B - Solder apparatus having spring loaded plungers - holds flexible circuit in contact with solder masking support plate during selective soldering
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Solder apparatus having spring loaded plungers - holds flexible circuit in contact with solder masking support plate during selective soldering
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Publication number
IT1042823B
IT1042823BIT2759175AIT2759175AIT1042823BIT 1042823 BIT1042823 BIT 1042823BIT 2759175 AIT2759175 AIT 2759175AIT 2759175 AIT2759175 AIT 2759175AIT 1042823 BIT1042823 BIT 1042823B
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Priority claimed from GB41773Aexternal-prioritypatent/GB1371011A/en
Application filed by Electrovert Mfg Co LtdfiledCriticalElectrovert Mfg Co Ltd
Application grantedgrantedCritical
Publication of IT1042823BpublicationCriticalpatent/IT1042823B/en
A solder masking support plate covers all the circuit except the selected areas which are to be exposed to solder. A number of spring-loaded plungers arranged in holes in a pressure plate resiliently hold the flexible circuit against the masking plate around each area to be exposed to the solder. Used for soldering printed circuits where the substrate is made from flexible plastic. The plungers press the circuit against the support plate eliminating a possible separation between the support plate and the flexible circuit if the support plate warps thus preventing voids or skips. Pressing the flexible circuit around the areas to be soldered makes a kind of seal which prevents solder from penetrating or spreading outside the areas defined by the apertures in the masking plate.
IT2759175A1973-01-031975-09-24Solder apparatus having spring loaded plungers - holds flexible circuit in contact with solder masking support plate during selective soldering
IT1042823B
(en)
Transferring of symbols for electronic circuit diagrams - by bonding sheet to rectangular frame with dry adhesive for application to receiving surface by pressure