GB817635A - Improvements in or relating to printed circuit assemblies - Google Patents

Improvements in or relating to printed circuit assemblies

Info

Publication number
GB817635A
GB817635A GB1376756A GB1376756A GB817635A GB 817635 A GB817635 A GB 817635A GB 1376756 A GB1376756 A GB 1376756A GB 1376756 A GB1376756 A GB 1376756A GB 817635 A GB817635 A GB 817635A
Authority
GB
United Kingdom
Prior art keywords
printed circuit
electrode
reverse side
value
notches
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
GB1376756A
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.)
TONY BRIAN HARDING
Original Assignee
TONY BRIAN HARDING
Filing date
Publication date
Application filed by TONY BRIAN HARDING filed Critical TONY BRIAN HARDING
Publication of GB817635A publication Critical patent/GB817635A/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
    • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
    • H05K1/162—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed capacitors
    • 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
    • H05K2201/09218—Conductive traces
    • H05K2201/09236—Parallel layout
    • 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
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10295—Metallic connector elements partly mounted in a hole of the PCB
    • 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
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10227—Other objects, e.g. metallic pieces
    • H05K2201/10363—Jumpers, i.e. non-printed cross-over connections
    • 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
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/17—Post-manufacturing processes
    • H05K2203/171—Tuning, e.g. by trimming of printed components or high frequency circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

817,635. Printed circuits. HARDING, T. B., and MIDDLETON, J. D. May 6, 1957 [May 4, 1956], No. 13767/56. Class 37. [Also in Group XL (c)] In a printed circuit a capacitor whose value has to be pre-set, has one electrode in the form of an elongated portion of the printed circuit connected at one end to the remainder of the circuit, whereby its value may be pre-set to a desired value by cutting across the electrode at an appropriate point along its length. Fig. 2 shows two such electrodes 14, 15; they are provided with notches along their lengths and these are numbered to assist in identifying the notches. The reverse side of the printed circuit panel may also carry a portion of the printed circuit, Fig. 1 (not shown); in this event the conductor on the reverse side may be cut away immediately beneath the electrode 14 or 15 where only a small total capacitance is required. The printed circuit assembly may form part of a television tuner (see Group XL (c)) the printed circuit on the reverse side of the panel supporting metal contacts which engage with moving contacts connected to the tuning coils.
GB1376756A 1956-05-04 Improvements in or relating to printed circuit assemblies Expired GB817635A (en)

Publications (1)

Publication Number Publication Date
GB817635A true GB817635A (en) 1959-08-06

Family

ID=1730184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1376756A Expired GB817635A (en) 1956-05-04 Improvements in or relating to printed circuit assemblies

Country Status (1)

Country Link
GB (1) GB817635A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246478A (en) * 1990-06-21 1992-01-29 Sony Corp Manufacture of hybrid integrated circuit
GB2260650A (en) * 1991-10-14 1993-04-21 Fuji Electric Co Ltd Insulating substrate for mounting semiconductor devices
US5403651A (en) * 1991-10-14 1995-04-04 Fuji Electric Co., Ltd. Insulating substrate for mounting semiconductor devices

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246478A (en) * 1990-06-21 1992-01-29 Sony Corp Manufacture of hybrid integrated circuit
GB2246478B (en) * 1990-06-21 1994-01-19 Sony Corp System for manufacture of hybrid integrated circuit
US5539976A (en) * 1990-06-21 1996-07-30 Sony Corporation System for manufacture of hybrid integrated circuit
GB2260650A (en) * 1991-10-14 1993-04-21 Fuji Electric Co Ltd Insulating substrate for mounting semiconductor devices
GB2260650B (en) * 1991-10-14 1995-03-22 Fuji Electric Co Ltd Insulating substrate for mounting semiconductor devices
US5403651A (en) * 1991-10-14 1995-04-04 Fuji Electric Co., Ltd. Insulating substrate for mounting semiconductor devices

Similar Documents

Publication Publication Date Title
JPS5418664A (en) Semiconductor switch
OA01425A (en) Improvements in the production of electrical circuits of the so-called "printed" type.
GB817635A (en) Improvements in or relating to printed circuit assemblies
GB988777A (en) Make switch for fast electrical discharge
JPS5438701A (en) Automatic channel selector for electronic tuner
JPS5442690A (en) Bushing
JPS54111743A (en) Switch circuit
GB1216728A (en) Electrical insulators
JPS5666173A (en) Rectifier
CA535480A (en) Circuit breaker with electrode disposed between two arc interrupting devices
FR1318855A (en) Fault current circuit breaker
JPS5676631A (en) Electronic switch
JPS52129311A (en) Driving circuit of swtich matrix
CA607383A (en) Electron discharge device circuit arrangements
CA599236A (en) Electron discharge device circuit arrangements
JPS52110553A (en) Voltage control type variable resistor
JPS5376717A (en) Semionductor read only memory
CA598955A (en) Electrical fine tuning device
JPS5287310A (en) Input tuning circuit in television receiver etc.
AU245611B2 (en) A circuit arrangement fora telephone system operating with frequency selection
AU234406B2 (en) A circuit arrangement fora telephone system operating with frequency selection
GB838782A (en) Improvements relating to electrical post insulators
FR1402683A (en) Small push-button switch applicable as a circuit breaker and circuit closer
BE573453A (en) Improvements to low voltage electrical service circuit breakers.
AU243842B2 (en) Automatic frequency tuning circuit foran oscillator