Treatment method and apparatus for printed circuit boards and th

Details Treatment method and apparatus for printed circuit boards and th Treatment method and apparatus for printed circuit boards and th

1996-05-15

1998-06-16

Bell, Janyce

Coating processes

With pretreatment of the base

Etching, swelling, or dissolving out part of the base

427 96, 198780, 198791, 1988601, 118500, 1566391, 134 64R, 134122R, 134902, B08B 102, B05D 512

Patent

active

057666857

ABSTRACT:
A method and apparatus for transporting thin materials, such as printed circuit boards, through an apparatus for treatment of said boards with an etchant, rinse or other chemical process step, including a transport conveyor having a plurality of rotation members with a specially configured rim for contacting the thin materials and moving them through the apparatus with a longer contact path in each rotation of a rotation member than the circumference of the rotation member.

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