Locking Of Biochemical Assays For Digital Microfluidic Biochips
2018 23RD IEEE EUROPEAN TEST SYMPOSIUM (ETS)(2018)
摘要
It is expected that as digital microfluidic biochips (DMFBs) mature, the hardware design flow will begin to resemble the current practice in the semiconductor industry: design teams send chip layouts to third party foundries for fabrication. These foundries are untrusted, and threaten to steal valuable intellectual property (IP). In a DMFB, the IP consists of not only hardware layouts, but also of the biochemical assays (bioassays) that are intended to be executed on-chip. DMFB designers therefore must defend these protocols against theft. We propose to "lock" biochemical assays through random insertion of dummy mix-split operations, subject to several design rules. We experimentally evaluate the proposed locking mechanism, and show how a high level of protection can be achieved even on bioassays with low complexity. We offer guidance on the number of dummy mix-splits required to secure a bioassay for the lifetime of a patent.
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关键词
chip layouts,valuable intellectual property,locking mechanism,digital microfluidic biochips,semiconductor industry
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