FreeLists / si-list / [SI-LIST] Re: Degassing holes

["Shawn Nikoukary" <shawnn@xxxxxxxxxxx>]

Hi Avtaar,

During manufacturing, dielectric material produce certain type of gasses
which need to escape out. If you cover the dielectric with a sheet
metal, these gasses will produce "bubbles" under the planes and cause
delamination; therefore, during manufacturing, they place openings on
large areas with continuous metal planes to let these gasses escape:
hence degassing holes.

Regards,=20

Shawn Nikoukary  =20

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Avtaar Singh
Sent: Thursday, February 22, 2007 9:34 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Degassing holes

Group:
Kindly let me know why degassing holes are called so.

Regards!


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