Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Technology Stocks : Kulicke and Soffa -- Ignore unavailable to you. Want to Upgrade?

To: Douglas V. Fant who wrote (2036)	11/7/1997 12:19:00 AM
From: semi engineer	Respond to of 5482

Doug The companies you have listed do flipchip assembly for flex circuitry that 3M supplies. Right?? Some application such as a printers or camcorders uses them but do you have any flipchip used on a standard FR4 board or used inside an existing package. No. Those flex circuitry uses polyimide backing and they are extremely expensive and many companies will avoid them due to cost constraint. With a standard leadframe, the packaging cost is approximately .6 cents/pin. With flex circuitry, that will go up to 2 cents/pin or more. Again, flip chip will be for niche. Not standard. By the way, Casio used TAB for all their watches and calculators for years but it is still very far away from being a standard interconnection method. If my assumptions are wrong, please let me know.