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Reply To: | TechNet E-Mail Forum. |
Date: | Tue, 29 Jun 1999 22:46:24 -0700 |
Content-Type: | text/plain |
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Dan,
Taiyo BN resist is formally called PSR-4000BN solder mask. This is a
semi-gloss version of PSR-4000 LPI solder mask that is very popular with PCB
manufacturers in North America.
Typical exposure energies for PSR-4000BN are 300 - 400 millijoules /
cm-squared using a UV lamp that emits wavelengths in the 365 nm range.
Final cure is achieved by thermal bake (Typical conditions: 60 minutes @
300F). UV bump is not necessary. Most of the users of PSR-4000BN do not
use a UV bump.
For more information, please contact customer service @ Taiyo America (Tel:
775-885-9959).
Best regards,
David Rund
President
Taiyo America
-----Original Message-----
From: Dan Klug <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Tuesday, June 29, 1999 4:13 PM
Subject: [TN] Taiyo Soldermask
>Is anyone out there familiar with Taiyo BN resist?
>I need info on:
> UV Exposure Dosage
> Wavelength Sensitivity
> IR Bump needed?
> UV Bump needed?
>Thanks in advance for the help.
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