US3133270A - Printed circuitry for magnetic core matrix - Google Patents

Printed circuitry for magnetic core matrix Download PDF

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Publication number
US3133270A
US3133270A US51746A US5174660A US3133270A US 3133270 A US3133270 A US 3133270A US 51746 A US51746 A US 51746A US 5174660 A US5174660 A US 5174660A US 3133270 A US3133270 A US 3133270A
Authority
US
United States
Prior art keywords
cores
sheets
cutouts
core matrix
lips
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 - Lifetime
Application number
US51746A
Other languages
English (en)
Inventor
George J David
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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
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
Priority to NL268251D priority Critical patent/NL268251A/xx
Application filed by Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Priority to US51688A priority patent/US3197746A/en
Priority to US51746A priority patent/US3133270A/en
Priority to US65462A priority patent/US3492665A/en
Priority to US81185A priority patent/US3196522A/en
Priority to GB25666/61A priority patent/GB918000A/en
Priority to BE606130A priority patent/BE606130A/fr
Priority to DEA38061A priority patent/DE1257847B/de
Application granted granted Critical
Publication of US3133270A publication Critical patent/US3133270A/en
Priority to US428365A priority patent/US3413620A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/02—Disposition of storage elements, e.g. in the form of a matrix array
    • G11C5/04—Supports for storage elements, e.g. memory modules; Mounting or fixing of storage elements on such supports
    • G11C5/05—Supporting of cores in matrix
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/06—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using single-aperture storage elements, e.g. ring core; using multi-aperture plates in which each individual aperture forms a storage element
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/02—Disposition of storage elements, e.g. in the form of a matrix array
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49069—Data storage inductor or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing

Definitions

  • This invention relates to a memory core device and more particularly, to a printed circuit arrangement for a memory core matrix.
  • the primary object of this invention is to provide a printed circuit arrangement for a memory core device which requires a minimum number of soldered connections to complete the winding through the magnetic cores.
  • the present invention improves upon the aforedescribed disclosure by substantially reducing, for example by onehalf, the number of soldered connections required to complete the windings through the cores. Instead of bridging each gap formed between an edge of a lip and an edge of the cutout with a relatively short conductor disposed on an adjacent sheet, continuity is insured by forming conductors, each extending all the way from one cutout to the next, alternately on adjacent sheets so that both ends of each of these conductors overlaps a similar conductor on the adjacent sheet. Thus there is only one overlap between adjacent conductors at each cutout and hence only one solder connection is required at each cutout instead of the two connections in the case of the copending application.
  • FIGURE 1 is a schematic view showing the winding arrangement through the positioned memory cores.
  • FIGURE 2 is a plan view showing the cards before they are moved with respect to each other, that is, before the lips thereof are inserted into the cores.
  • FIGURE 3 is an exploded cross-sectional view of the assembly according to the invention including the temporary core jig or core support and the posts used to press the cards together.
  • FIGURE 4 is a plan view showing a magnetic ring core held by means of a lip which extends at a cutout of the card.
  • FIGURES 5A and 5B are plan views of two cards having printed conductors disposed thereon and extending lips formed at a plurality of cutouts.
  • FIGURE 1 shows a winding arrangement for the magnetic memory device.
  • the arrangement comprises a sense winding 14, a horizontal winding 16 and a vertical Winding 15, all of which thread, that is extend through, the array of cores 12.
  • cores 12 are set on end in circular depressions of a jig 23.
  • Cards 10 are then aligned with and laid over the positioned cores so as to be at right angles therewith. This is followed by moving the adjacent cards 10 with respect to each other so that the lips 13 of each card, which extend in opposite directions, are inserted through the core apertures and overlap each other outside of the core apertures.
  • the thusly assembled cards are then placed under posts 24, shown in FIG. 4.
  • Posts 24 are the means used to exert pressure upon the sheets 14 and act directly over the overlapped area so as to give maximum effect. Heat is applied simultaneously with the pressure causing thereby the solder disposed on the overlapped portion of the adjacent conductors to flow together and form con tinuous conducting paths. This heat is radiated through the sheets by means of a heating element which may be an integral part of the post 24 or separate therefrom. After the pressure and heat is removed the assembly is self supporting and does not require any additional mechanical support.
  • the device which is assembled by the aforedescribed method comprises cards 10 each having printed conductor segments 11 disposed on at least one of its surfaces, and toroidal shape cores 12.
  • Cards 10 have cutouts 20 arranged to correspond with the arrangement of the cores 12. Extending from each of these cutouts is an extending lip 13 which is the means used to hold and carry conductors 11 through the core 12.
  • the conductors 11 are printed on the cards 11 by any of the techniques commonly used in the art of printed circuitry.
  • each of the conductors of one card extends over the lips 13 and between a given pair of cutouts.
  • the conductors on adjacent cards also extend over the lips 13 but between alternate pairs of cutouts as more clearly shown in FIGS. 5A and 5B. In this manner the conductors of one card matches or completes the conductors of another card, thereby forming continuous electrical paths through the cores.
  • the cores 12 in addition to being held by the lips 13 are locked into position thereby by virtue of the fact that the lips of one sheet extend through the cores from one direction and the lips of an adjacent sheet from the opposite direction. Thus, no specific means is required to fasten down the cores 12 to the cards 10 or vice versa.
  • a printed circuit arrangement for a memory core matrix comprising; an array of ring cores, a pluality of substantially flat sheets made of insulating material and having cutouts through which said ring cores extend in planes perpendicular to planes of the sheets, at least one of said sheets having lips extending from one side of said cutouts and protruding through said ring cores, a plurality of printed conductor segments disposed on at least one surface of said sheets over said lips and extending between alternate pairs of said cutouts, said conductor segments on one sheet being continued by other segments disposed on an opposite surface of an adjacent sheet thereby forming a continuous conducting path between and through said ring cores.
  • a printed circuit arrangement for a memory core matrix as claimed in claim 1, wherein said lips of one sheet extend oppositely to lips of another of said sheets lying in a parallel plane so that the said ring cores are locked in position.
  • a printed circuit arrangement for a memory core matrix as claimed in claim 2, wherein in the assembled condition of said matrix said lips of one sheet are overlapped by lips of an adjacent sheet outside of said ring cores.
  • a printed circuit arrangement for a memory core matrix comprising; an array of ring cores, a stack of sub- -3 between alternate pairs of said apertures, said conductor segments on one member being continued by other segments disposed on an opposite surface of an adjacent member thereby forming a continuous conducting path stantially fiat members made of insulating material and 5 between and through said g Coreshaving spaced apertures through which said ring cores extend in planes perpendicular to planes of the said members, at least one of said members have one or more portions extending through said ring cores, a plurality of printed conductor segments disposed on at least one surface of said members over said portions and extending References Cited in the file of this patent UNITED STATES PATENTS 2,901,736 Sylvester Aug. 29, 1959 2,910,675 Gessner Get. 27, 1959 2,970,296 Horton Jan. 31, 1961

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Electromagnets (AREA)
  • Credit Cards Or The Like (AREA)
US51746A 1960-08-24 1960-08-24 Printed circuitry for magnetic core matrix Expired - Lifetime US3133270A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL268251D NL268251A (sl) 1960-08-24
US51688A US3197746A (en) 1960-08-24 1960-08-24 Memory core assembly
US51746A US3133270A (en) 1960-08-24 1960-08-24 Printed circuitry for magnetic core matrix
US65462A US3492665A (en) 1960-08-24 1960-10-27 Magnetic device using printed circuits
US81185A US3196522A (en) 1960-08-24 1961-01-06 Memory core matrix with printed windings
GB25666/61A GB918000A (en) 1960-08-24 1961-07-14 Improvements in magnetic memory devices
BE606130A BE606130A (fr) 1960-08-24 1961-07-14 Dispositif de mémoire magnétique
DEA38061A DE1257847B (de) 1960-08-24 1961-08-04 Magnetkernspeicher
US428365A US3413620A (en) 1960-08-24 1965-01-27 Memory core matrix with printed windings

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US51688A US3197746A (en) 1960-08-24 1960-08-24 Memory core assembly
US51746A US3133270A (en) 1960-08-24 1960-08-24 Printed circuitry for magnetic core matrix
US6546260A 1960-10-27 1960-10-27
US81185A US3196522A (en) 1960-08-24 1961-01-06 Memory core matrix with printed windings

Publications (1)

Publication Number Publication Date
US3133270A true US3133270A (en) 1964-05-12

Family

ID=27489426

Family Applications (4)

Application Number Title Priority Date Filing Date
US51688A Expired - Lifetime US3197746A (en) 1960-08-24 1960-08-24 Memory core assembly
US51746A Expired - Lifetime US3133270A (en) 1960-08-24 1960-08-24 Printed circuitry for magnetic core matrix
US65462A Expired - Lifetime US3492665A (en) 1960-08-24 1960-10-27 Magnetic device using printed circuits
US81185A Expired - Lifetime US3196522A (en) 1960-08-24 1961-01-06 Memory core matrix with printed windings

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US51688A Expired - Lifetime US3197746A (en) 1960-08-24 1960-08-24 Memory core assembly

Family Applications After (2)

Application Number Title Priority Date Filing Date
US65462A Expired - Lifetime US3492665A (en) 1960-08-24 1960-10-27 Magnetic device using printed circuits
US81185A Expired - Lifetime US3196522A (en) 1960-08-24 1961-01-06 Memory core matrix with printed windings

Country Status (5)

Country Link
US (4) US3197746A (sl)
BE (1) BE606130A (sl)
DE (1) DE1257847B (sl)
GB (1) GB918000A (sl)
NL (1) NL268251A (sl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328782A (en) * 1965-05-03 1967-06-27 Bell Telephone Labor Inc Magnetic memory assembly

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL283807A (sl) * 1961-09-29
NL298507A (sl) * 1962-09-28
NL6400600A (sl) * 1964-01-27 1965-07-28
US3543397A (en) * 1965-05-03 1970-12-01 Bell Telephone Labor Inc Magnetic memory assembly method
US3377699A (en) * 1965-05-03 1968-04-16 Western Electric Co Fluidized bed coating a core containing metal board, including circuit forming, core wiring and connecting steps
DE1295653B (de) * 1965-07-17 1969-05-22 Telefunken Patent Anordnung fuer die magnetische Speicherung, Durchschaltung oder logische Verknuepfung von Informationen und Verfahren zum Betreiben der Anordnung, zur Erzeugung der Anisotropie und zu ihrer Herstellung
US3391464A (en) * 1966-02-25 1968-07-09 Bunker Ramo Assembly tool
US3427715A (en) * 1966-06-13 1969-02-18 Motorola Inc Printed circuit fabrication
DE1764812A1 (de) * 1968-08-09 1971-11-11 Vickers Zimmer Ag Verfahren zur Herstellung eines magnetischen Speicherelements
US3591922A (en) * 1968-12-05 1971-07-13 Sperry Rand Corp Fabrication of electrical solder joints using electrodeposited solder
US3573762A (en) * 1969-01-28 1971-04-06 Us Navy 3-wire coincident current core memory
US3680209A (en) * 1969-05-07 1972-08-01 Siemens Ag Method of forming stacked circuit boards
US3765082A (en) * 1972-09-20 1973-10-16 San Fernando Electric Mfg Method of making an inductor chip
US3893189A (en) * 1974-01-14 1975-07-01 Spin Physics Inc Magnetic record/reproduce head and manufacturing method therefor
TWI399139B (zh) * 2007-09-19 2013-06-11 Ind Tech Res Inst 彎繞線狀電感器及具有此彎繞線狀電感器的基板結構
WO2021124345A1 (en) * 2019-12-18 2021-06-24 Permanent Magnets Limited Magnetic core assembly and manufacturing process thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2901736A (en) * 1955-08-23 1959-08-25 Steatite Res Corp Printed circuit for array of toroidal cores
US2910675A (en) * 1957-01-09 1959-10-27 Ibm Core array using coaxially spaced conductors
US2970296A (en) * 1955-05-10 1961-01-31 Ibm Printed circuit ferrite core memory assembly

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988668A (en) * 1954-10-05 1961-06-13 Burroughs Corp High speed memory
US2897409A (en) * 1954-10-06 1959-07-28 Sprague Electric Co Plating process
US2985948A (en) * 1955-01-14 1961-05-30 Rca Corp Method of assembling a matrix of magnetic cores
US2961745A (en) * 1955-12-29 1960-11-29 Ibm Device for assembling magnetic core array
US2937351A (en) * 1956-02-13 1960-05-17 Palmer H Craig Magnetic amplifier
NL215595A (sl) * 1956-03-22
NL113004C (sl) * 1956-10-03
US3027548A (en) * 1956-12-17 1962-03-27 Bell Telephone Labor Inc Electromagnetic coupling arrangements
US2934748A (en) * 1957-01-31 1960-04-26 United Shoe Machinery Corp Core mounting means
NL234583A (sl) * 1957-12-31
US3025502A (en) * 1959-01-19 1962-03-13 Burroughs Corp Magnetic core memory construction
NL251679A (sl) * 1959-05-21

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970296A (en) * 1955-05-10 1961-01-31 Ibm Printed circuit ferrite core memory assembly
US2901736A (en) * 1955-08-23 1959-08-25 Steatite Res Corp Printed circuit for array of toroidal cores
US2910675A (en) * 1957-01-09 1959-10-27 Ibm Core array using coaxially spaced conductors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328782A (en) * 1965-05-03 1967-06-27 Bell Telephone Labor Inc Magnetic memory assembly

Also Published As

Publication number Publication date
US3492665A (en) 1970-01-27
BE606130A (fr) 1961-11-03
NL268251A (sl)
GB918000A (en) 1963-02-13
US3197746A (en) 1965-07-27
US3196522A (en) 1965-07-27
DE1257847B (de) 1968-01-04

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