GB943079A - A method of making printed circuit units - Google Patents

A method of making printed circuit units

Info

Publication number
GB943079A
GB943079A GB3912062A GB3912062A GB943079A GB 943079 A GB943079 A GB 943079A GB 3912062 A GB3912062 A GB 3912062A GB 3912062 A GB3912062 A GB 3912062A GB 943079 A GB943079 A GB 943079A
Authority
GB
United Kingdom
Prior art keywords
mould
sheet
wax
temporary support
casting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3912062A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB943079A publication Critical patent/GB943079A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
    • H05K3/20—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern by affixing prefabricated conductor pattern
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/03—Conductive materials
    • H05K2201/0302—Properties and characteristics in general
    • H05K2201/0305—Solder used for other purposes than connections between PCB or components, e.g. for filling vias or for programmable patterns
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09009—Substrate related
    • H05K2201/09118—Moulded substrate

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing Of Printed Wiring (AREA)

Abstract

943,079. Printed circuits. NATIONAL CASH REGISTER CO. Oct. 16, 1962 [Nov. 13, 1961], No. 39120/62. Heading H1R. A printed circuit in which the conductors are flush with the surface of the dielectric panel in which they are embedded is made by adhering a sheet of conductive material to a temporary support, forming the conductive pattern from the sheet, casting uncured dielectric material around the exposed surfaces of the conductors, curing the dielectric material, and removing the temporary support. As shown, Fig. 1, a copper sheet 10 is held by suction against a perforated backing plate 11 while a mould 21 is placed on the sheet 10 and filled with casting wax 22, e.g. paraffin wax. When the wax has hardened to form a temporary support, a circuit pattern is formed from the copper sheet 10, as by acid etching; then a second mould 23, Fig. 4, is fitted over mould 21 and filled with a casting resin, 24, e.g. epoxy resin, which is then cured. The mould 23 is removed and the wax 22 is melted away.
GB3912062A 1961-11-13 1962-10-16 A method of making printed circuit units Expired GB943079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15191361A 1961-11-13 1961-11-13

Publications (1)

Publication Number Publication Date
GB943079A true GB943079A (en) 1963-11-27

Family

ID=22540777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3912062A Expired GB943079A (en) 1961-11-13 1962-10-16 A method of making printed circuit units

Country Status (4)

Country Link
BE (1) BE624491A (en)
CH (1) CH382818A (en)
DE (1) DE1227964B (en)
GB (1) GB943079A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL190034A (en) * 1953-08-17
DE1097500B (en) * 1956-07-17 1961-01-19 Siemens Ag Process for the production of so-called printed circuits

Also Published As

Publication number Publication date
BE624491A (en)
DE1227964B (en) 1966-11-03
CH382818A (en) 1964-10-15

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