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goafrit2
goafrit2
6/30/2013 6:55:44 PM
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Re: relays - they do have advantages
>> are characterized as a lab-on-chip based on the microfluidic function in drug delivery or acting as a sensor within the human body

I think microfluidics are different in that what happens there is more chemical than electrons moving through wires. From that angle, one can argue that the testing strategies must be different from typical circuits. Soft lithography with all the sophisticated etching techniques are used to make microfluidics. In circuit, we use the typital photolithography or variants. 

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Ranasinghe
Ranasinghe
6/29/2013 8:33:24 AM
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Re: relays - they do have advantages
"It does not have to be very complicated at the testing side"

Very true sir, it will greatly save the time.

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D Feucht
D Feucht
6/19/2013 9:10:51 PM
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Re: relays - they do have advantages
"Lab on a chip" is somewhat different in that the essence of it is a senseFET with processing, or else MEMS fluidics, which is a different kind of instrument.


Monolithic instrument testing should be far easier than testing microcomputers. There are only a few blocks in the diagram and critical nodes can be pinned out. In the case of extremely complicated analog circuits, a kind of analog JTAG would not be too difficult to implement. I would not expect more than a few thousand transistors in a typical instrument, and that includes DACs and digitpots.

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analoging
analoging
6/19/2013 4:16:33 PM
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Lab on chip
Many new bio or medical MEMS devices, including ones produced by analog companies, are characterized as a lab-on-chip based on the microfluidic function in drug delivery or acting as a sensor within the human body. It is a more stable product typically since ones geared towards consumer electronics, which is a field that fluctuates more in sales.

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goafrit2
goafrit2
6/19/2013 11:33:36 AM
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Master
Re: relays - they do have advantages
>> a new type of testing, a new class of instruments that, when designed correctly, can deliver utility throughtout a device's lifecycle. 

I think the best roadmap now is design-for-test which helps you design ways to aid testability of chips. It does not have to be very complicated at the testing side if the testing is thought-out.

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goafrit2
goafrit2
6/19/2013 11:32:23 AM
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Master
Re: relays - they do have advantages
People have discussed and written the concept of lab-on-chip for years. Why that is possible in the chemical/chemistry etc field, I am yet to see any real application in electronics and the chip industry that parleys to circuits. For instrument on chip, the question would be: how do you test the chip which is also an instrument? It gets complicated as this piece explains.

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Netcrawl
Netcrawl
6/18/2013 8:58:59 PM
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Master
Re: relays - they do have advantages
@Dennis thanks for a great article I think today's electronic world requires something new, a new type of testing, a new class of instruments that, when designed correctly, can deliver utility throughtout a device's lifecycle. 

 

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Brad Albing
Brad Albing
6/18/2013 5:55:49 PM
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relays - they do have advantages
Dennis - I do like relays for some situations is test equipment. Their open ckt isolation, ultra low leakage, and breakdown voltage ratings put them way above the competition.

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