GB8705710D0 - Electrical circuits - Google Patents

Electrical circuits

Info

Publication number
GB8705710D0
GB8705710D0 GB878705710A GB8705710A GB8705710D0 GB 8705710 D0 GB8705710 D0 GB 8705710D0 GB 878705710 A GB878705710 A GB 878705710A GB 8705710 A GB8705710 A GB 8705710A GB 8705710 D0 GB8705710 D0 GB 8705710D0
Authority
GB
United Kingdom
Prior art keywords
electrical circuits
circuits
electrical
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
GB878705710A
Other versions
GB2202093A (en
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.)
Marconi Instruments Ltd
Original Assignee
Marconi Instruments 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 Marconi Instruments Ltd filed Critical Marconi Instruments Ltd
Priority to GB08705710A priority Critical patent/GB2202093A/en
Publication of GB8705710D0 publication Critical patent/GB8705710D0/en
Publication of GB2202093A publication Critical patent/GB2202093A/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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0073—Masks not provided for in groups H05K3/02 - H05K3/46, e.g. for photomechanical production of patterned surfaces
    • H05K3/0082—Masks not provided for in groups H05K3/02 - H05K3/46, e.g. for photomechanical production of patterned surfaces characterised by the exposure method of radiation-sensitive masks
    • 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
    • H05K2203/05—Patterning and lithography; Masks; Details of resist
    • H05K2203/0502—Patterning and lithography
    • H05K2203/0505—Double exposure of the same photosensitive 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
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/05—Patterning and lithography; Masks; Details of resist
    • H05K2203/0548—Masks
    • H05K2203/0551—Exposure mask directly printed on 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
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/10—Using electric, magnetic and electromagnetic fields; Using laser light
    • H05K2203/107—Using laser light

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)
GB08705710A 1987-03-11 1987-03-11 Making printed circuit boards Pending GB2202093A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08705710A GB2202093A (en) 1987-03-11 1987-03-11 Making printed circuit boards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08705710A GB2202093A (en) 1987-03-11 1987-03-11 Making printed circuit boards

Publications (2)

Publication Number Publication Date
GB8705710D0 true GB8705710D0 (en) 1987-04-15
GB2202093A GB2202093A (en) 1988-09-14

Family

ID=10613729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08705710A Pending GB2202093A (en) 1987-03-11 1987-03-11 Making printed circuit boards

Country Status (1)

Country Link
GB (1) GB2202093A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0433721A3 (en) * 1989-12-22 1992-07-08 Siemens Aktiengesellschaft Method of applying a solder stop coating on printed circuit boards

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1049312A (en) * 1974-01-17 1979-02-27 John O.H. Peterson Presensitized printing plate with in-situ, laser imageable mask
EP0098922A3 (en) * 1982-07-13 1986-02-12 International Business Machines Corporation Process for selectively generating positive and negative resist patterns from a single exposure pattern
JPS59124133A (en) * 1982-12-30 1984-07-18 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Method of forming negative type resist image
DE3377302D1 (en) * 1983-01-24 1988-08-11 American Telephone & Telegraph Bilevel ultraviolet resist system for patterning substrates of high reflectivity
EP0154932A3 (en) * 1984-03-09 1986-02-05 Hewlett-Packard Company Multilayer photoresist process

Also Published As

Publication number Publication date
GB2202093A (en) 1988-09-14

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