FR2450030A1 - Flexible printed circuit board - has component mounting holes internally covered with conductive layer which extends onto circuit board face - Google Patents

Flexible printed circuit board - has component mounting holes internally covered with conductive layer which extends onto circuit board face

Info

Publication number
FR2450030A1
FR2450030A1 FR7904238A FR7904238A FR2450030A1 FR 2450030 A1 FR2450030 A1 FR 2450030A1 FR 7904238 A FR7904238 A FR 7904238A FR 7904238 A FR7904238 A FR 7904238A FR 2450030 A1 FR2450030 A1 FR 2450030A1
Authority
FR
France
Prior art keywords
circuit board
printed circuit
conductive layer
flexible printed
mounting holes
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.)
Pending
Application number
FR7904238A
Other languages
French (fr)
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical Co 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to FR7904238A priority Critical patent/FR2450030A1/en
Publication of FR2450030A1 publication Critical patent/FR2450030A1/en
Pending 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
    • H05K1/11—Printed elements for providing electric connections to or between printed circuits
    • H05K1/118—Printed elements for providing electric connections to or between printed circuits specially for flexible printed circuits, e.g. using folded portions
    • 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
    • H05K3/22—Secondary treatment of printed circuits
    • H05K3/28—Applying non-metallic protective coatings
    • 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
    • H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
    • H05K3/42—Plated through-holes or plated via connections
    • H05K3/425—Plated through-holes or plated via connections characterised by the sequence of steps for plating the through-holes or via connections in relation to the conductive pattern
    • H05K3/428—Plated through-holes or plated via connections characterised by the sequence of steps for plating the through-holes or via connections in relation to the conductive pattern initial plating of through-holes in substrates having a metal 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
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09372—Pads and lands
    • H05K2201/09436—Pads or lands on permanent coating which covers the other conductors
    • 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
    • H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
    • H05K2203/1377—Protective layers
    • H05K2203/1383—Temporary protective insulating layer
    • 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
    • H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
    • H05K3/42—Plated through-holes or plated via connections
    • H05K3/429—Plated through-holes specially for multilayer circuits, e.g. having connections to inner circuit layers

Landscapes

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

Abstract

The flexible printed circuit board has a polyamide substrate (1) with printed circuit tracks (2) are formed on one or both sides of the substrate. The tracks are covered with a protective insulating layer (5) except in the region of through-holes (3) for component leads. These through-holes (3) are provided with a reinforcing electrically conductive layer (6) which may conveniently connect tracks (4a, 4b) on opposite sides of the substrate. In a modification, the whole of the board is covered with the insulating layer (5) and then a conductive disc applied over the layer at selected hole points. The holes are then drilled and coated with a conductive layer which connects with the conductor tracks.
FR7904238A 1979-02-20 1979-02-20 Flexible printed circuit board - has component mounting holes internally covered with conductive layer which extends onto circuit board face Pending FR2450030A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904238A FR2450030A1 (en) 1979-02-20 1979-02-20 Flexible printed circuit board - has component mounting holes internally covered with conductive layer which extends onto circuit board face

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904238A FR2450030A1 (en) 1979-02-20 1979-02-20 Flexible printed circuit board - has component mounting holes internally covered with conductive layer which extends onto circuit board face

Publications (1)

Publication Number Publication Date
FR2450030A1 true FR2450030A1 (en) 1980-09-19

Family

ID=9222178

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904238A Pending FR2450030A1 (en) 1979-02-20 1979-02-20 Flexible printed circuit board - has component mounting holes internally covered with conductive layer which extends onto circuit board face

Country Status (1)

Country Link
FR (1) FR2450030A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105945326A (en) * 2016-07-18 2016-09-21 苏州工业园区杰智汇电子材料有限公司 Circuit board drilling cover plate for deep drilling control and control method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589004A (en) * 1968-09-13 1971-06-29 North American Rockwell Process of making reinforced flat cable terminations
FR2307438A1 (en) * 1975-04-10 1976-11-05 Siemens Ag Printed circuits with conducting transverse bores - starting with thin copper sheets as thin layers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3589004A (en) * 1968-09-13 1971-06-29 North American Rockwell Process of making reinforced flat cable terminations
FR2307438A1 (en) * 1975-04-10 1976-11-05 Siemens Ag Printed circuits with conducting transverse bores - starting with thin copper sheets as thin layers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105945326A (en) * 2016-07-18 2016-09-21 苏州工业园区杰智汇电子材料有限公司 Circuit board drilling cover plate for deep drilling control and control method

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