GB879395A - Improvements relating to printed circuits - Google Patents

Improvements relating to printed circuits

Info

Publication number
GB879395A
GB879395A GB1740658A GB1740658A GB879395A GB 879395 A GB879395 A GB 879395A GB 1740658 A GB1740658 A GB 1740658A GB 1740658 A GB1740658 A GB 1740658A GB 879395 A GB879395 A GB 879395A
Authority
GB
United Kingdom
Prior art keywords
holes
plastic
punched
sheet
printed circuits
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
GB1740658A
Inventor
Allan Frederick Shackleton
Ronald James Timms
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB1740658A priority Critical patent/GB879395A/en
Publication of GB879395A publication Critical patent/GB879395A/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
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0286—Programmable, customizable or modifiable circuits
    • H05K1/0287—Programmable, customizable or modifiable circuits having an universal lay-out, e.g. pad or land grid patterns or mesh 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
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/095—Conductive through-holes or vias
    • H05K2201/09609—Via grid, i.e. two-dimensional array of vias or holes in a single plane
    • 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
    • H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
    • H05K2201/09945—Universal aspects, e.g. universal inner layers or via grid, or anisotropic interposer
    • 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
    • H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
    • H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process

Abstract

879,395. Printed circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 27, 1959 [May 30, 1958], No. 17406/58. Class 37. A method of producing a printed circuit comprises forming by an etching process the required conductive areas on to a baseplate, having angularly spaced holes 1, such that a proportion of the holes lie within the conductive areas. The base may be a sheet of laminated thermosetting plastic into which the holes are punched, or it may be moulded from plastic or ceramic with the holes formed during the moulding process. In one form, a sheet of thermo-setting plastic, coated on one surface with copper foil, is punched to provide a large number of holes in a rectangular array. The foil is then etched away to leave the required conducting pattern, which, in order to avoid discontinuities at the holes, is either made wider than the holes as at 5, or has its width extended in the vicinity of the holes as at 3, 4. Additional holes 6 may be added if required.
GB1740658A 1958-05-30 1958-05-30 Improvements relating to printed circuits Expired GB879395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1740658A GB879395A (en) 1958-05-30 1958-05-30 Improvements relating to printed circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1740658A GB879395A (en) 1958-05-30 1958-05-30 Improvements relating to printed circuits

Publications (1)

Publication Number Publication Date
GB879395A true GB879395A (en) 1961-10-11

Family

ID=10094633

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1740658A Expired GB879395A (en) 1958-05-30 1958-05-30 Improvements relating to printed circuits

Country Status (1)

Country Link
GB (1) GB879395A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4916760U (en) * 1972-05-16 1974-02-13
JPS4924958U (en) * 1972-06-06 1974-03-02
GB2191636A (en) * 1986-05-29 1987-12-16 Yuk Yuen Yu Printed circuit board

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4916760U (en) * 1972-05-16 1974-02-13
JPS4924958U (en) * 1972-06-06 1974-03-02
GB2191636A (en) * 1986-05-29 1987-12-16 Yuk Yuen Yu Printed circuit board

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