PROCESS FOR THICK FILM CIRCUIT PATTERNING
    4.
    发明授权
    PROCESS FOR THICK FILM CIRCUIT PATTERNING 有权
    方法的形成厚膜电路格局的

    公开(公告)号:EP1295518B1

    公开(公告)日:2008-07-02

    申请号:EP01953385.0

    申请日:2001-06-26

    IPC分类号: H05K3/04 G03F7/34

    摘要: A process for patterning thick film electrically functional patterns using a photosensitive polymer layer. A tacky photosensitive layer (104) is applied onto a substrate surface. The photosensitive layer (104) is imaged with a pattern (106) using actinic radiation, the exposed areas (107) of the photosensitive layer become hardened and non-tacky. A subsequent application of a thick film composition sheet (101 on 102) will cause the thick film (101) to adhere to the remaining tacky areas (104). Upon peeling the sheet (102), a thick film print pattern (101) will be produced. This step is followed by a processing profile prescribed by the thick film composition used which results in a pattern having electrically functional properties. The invention also extends to a process wherein a thick film composition is recovered from a used sheet.

    PROCESS FOR THICK FILM CIRCUIT PATTERNING
    7.
    发明公开
    PROCESS FOR THICK FILM CIRCUIT PATTERNING 有权
    方法的形成厚膜电路格局的

    公开(公告)号:EP1295518A2

    公开(公告)日:2003-03-26

    申请号:EP01953385.0

    申请日:2001-06-26

    IPC分类号: H05K3/04 G03F7/34

    摘要: A process for patterning thick film electrically functional patterns using a photosensitive polymer layer. A tacky photosensitive layer (104) is applied onto a substrate surface. The photosensitive layer (104) is imaged with a pattern (106) using actinic radiation, the exposed areas (107) of the photosensitive layer become hardened and non-tacky. A subsequent application of a thick film composition sheet (101 on 102) will cause the thick film (101) to adhere to the remaining tacky areas (104). Upon peeling the sheet (102), a thick film print pattern (101) will be produced. This step is followed by a processing profile prescribed by the thick film composition used which results in a pattern having electrically functional properties. The invention also extends to a process wherein a thick film composition is recovered from a used sheet.