GB1273904A - Improvements in printed circuits - Google Patents
Improvements in printed circuitsInfo
- Publication number
- GB1273904A GB1273904A GB1780870A GB1780870A GB1273904A GB 1273904 A GB1273904 A GB 1273904A GB 1780870 A GB1780870 A GB 1780870A GB 1780870 A GB1780870 A GB 1780870A GB 1273904 A GB1273904 A GB 1273904A
- Authority
- GB
- United Kingdom
- Prior art keywords
- panels
- solder
- april
- boards
- layer
- 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
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
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
- H05K3/4614—Manufacturing multilayer circuits by laminating two or more circuit boards the electrical connections between the circuit boards being made during lamination
- H05K3/462—Manufacturing multilayer circuits by laminating two or more circuit boards the electrical connections between the circuit boards being made during lamination characterized by laminating only or mainly similar double-sided circuit boards
-
- 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
- H05K1/0272—Adaptations for fluid transport, e.g. channels, holes
-
- 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
- H05K2201/09536—Buried plated through-holes, i.e. plated through-holes formed in a core before lamination
-
- 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
- H05K2201/096—Vertically aligned vias, holes or stacked vias
-
- 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
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/3489—Composition of fluxes; Methods of application thereof; Other methods of activating the contact surfaces
-
- 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
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4611—Manufacturing multilayer circuits by laminating two or more circuit boards
- H05K3/4623—Manufacturing multilayer circuits by laminating two or more circuit boards the circuit boards having internal via connections between two or more circuit layers before lamination, e.g. double-sided circuit boards
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Combinations Of Printed Boards (AREA)
Abstract
1,273,904. Printed circuits. BTR INDUSTRIES Ltd. 19 April, 1971 [14 April, 1970], No. 17808/70. Heading H1R. A printed circuit comprising two electrically insulating panels 1, having circuit patterns 2, and having a layer of solder or like fusible metal on their surfaces such that when the boards are laid together and heated the solder coating bonds the boards together where the circuit patterns meet. Metallized holes 3 provide for connections extending through the panels. A layer of electrically insulative flux 5 may fill the spaces between the panel surfaces and to prevent ingress of moisture "tinned" conductor strips 4 may be formed around the margins of each panel. The circuits which are copper may be arranged to mate over their whole area inbetween the panels which may be of glass fibre. Heating may be by induction or an oven and the solder may extend through the holes, Fig. 2 (not shown). More than two panels may be similarly bonded together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1780870A GB1273904A (en) | 1970-04-14 | 1970-04-14 | Improvements in printed circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1780870A GB1273904A (en) | 1970-04-14 | 1970-04-14 | Improvements in printed circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1273904A true GB1273904A (en) | 1972-05-10 |
Family
ID=10101596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1780870A Expired GB1273904A (en) | 1970-04-14 | 1970-04-14 | Improvements in printed circuits |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1273904A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0028657A1 (en) * | 1979-05-24 | 1981-05-20 | Fujitsu Limited | Hollow multilayer printed wiring board, and method of fabricating same |
US4685210A (en) * | 1985-03-13 | 1987-08-11 | The Boeing Company | Multi-layer circuit board bonding method utilizing noble metal coated surfaces |
GB2212333A (en) * | 1987-11-11 | 1989-07-19 | Gen Electric Co Plc | Method of fabricating multi-layer circuits |
CN114101839A (en) * | 2021-11-29 | 2022-03-01 | 苏州浪潮智能科技有限公司 | Wave soldering furnace |
-
1970
- 1970-04-14 GB GB1780870A patent/GB1273904A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0028657A1 (en) * | 1979-05-24 | 1981-05-20 | Fujitsu Limited | Hollow multilayer printed wiring board, and method of fabricating same |
EP0028657B1 (en) * | 1979-05-24 | 1988-08-10 | Fujitsu Limited | Hollow multilayer printed wiring board, and method of fabricating same |
US4685210A (en) * | 1985-03-13 | 1987-08-11 | The Boeing Company | Multi-layer circuit board bonding method utilizing noble metal coated surfaces |
GB2212333A (en) * | 1987-11-11 | 1989-07-19 | Gen Electric Co Plc | Method of fabricating multi-layer circuits |
CN114101839A (en) * | 2021-11-29 | 2022-03-01 | 苏州浪潮智能科技有限公司 | Wave soldering furnace |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |