Frequently Asked Questions about Microwave Bonding
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1. How does microwave bonding work?
Essentially, silicon, quartz, certain ceramics and plastics are transparent to microwaves so most of the microwave energy applied in our process is absorbed by thin film metals on the surface. By controlling various parameters, we can heat up the metal and effectively have temperature control to less than 1 degree Celsius.
By selectively heating only the microwave absorbing thin-film metal layers, we can leave the bulk substrate materials effectively unaffected. Thin-film metal layers can be, but are not limited to, gold, indium, aluminum, tin and many alloys. Substrate materials include silicon, GaAs, quartz, ceramics, and various polymers.
click to enlarge and see description
2. Why is the process useful?
Due to our precise temperature control, we can effectively target a single type of metal on the substrate to melt and bond, leaving the other different metal lines intact. Also, the bonding and interconnect lines are defined by lithography, making our bonding process massively parallel, and automatically scalable with improvements in lithography.
click to enlarge and see description
3. Does MBI offer a service or equipment?
We currently provide bonding services to both institutional and commercial R&D customers either directly or through the MEMS Exchange.
We are currently working with strategic partners to integrate our bonding chambers with their commercial, fab-proven, wafer handling and alignment systems. We expect a system capable of handling 1.5 inch square dies to be available in the near future.
4. How do I obtain bonding service or equipment from MBI
Contact our sales department directly at (626)296-6480 or info@microwavebonding.com for prototyping service or bonding equipment sales.
While every bonding requirement is unique, typically, we take a few prototype samples to prove compatibility with microwave bonding.
This preliminary feasibility test takes 1 to 2 weeks, and we charge only a minimum processing fee. After obtaining satisfactory results, MBI will then provide a service quote based on the number of samples to be processed and yield required.
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© 2002-2003 Microwave Bonding Instruments Inc., All rights reserved.
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