cbh,
The first parameter to consider changing is the total current based on the
ratio of area(5 mil lines)/area(old lines). The effects you describe seem to
be due in high current densities. I(5 mil) = I( old line) X A(5 mil)/A(old
line).
Hope thats' it.
Richard Haynes

-----Original Message-----
From: Huffman, Connie - LYPME <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Thursday, November 12, 1998 12:50 PM
Subject: [TN] FINE LINE COPPER PLATING


>Hello technet,
>We are trying to plate 5 mil lines in a typical acid copper bath, and
>are experience burning and overgrowth in some areas.  Should my plating
>parameters (sulfuric conc., hydrochloric conc., copper conc) change for
>finer lines?  Please provide recommended parameters.
>Thanks
>cbh
>
>################################################################
>TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
>################################################################
>To subscribe/unsubscribe, send a message to [log in to unmask] with following
text in the body:
>To subscribe:   SUBSCRIBE TechNet <your full name>
>To unsubscribe:   SIGNOFF TechNet
>################################################################
>Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section
for additional information.
>For technical support contact Hugo Scaramuzza at [log in to unmask] or
847-509-9700 ext.312
>################################################################
>
>

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################