ZeptoBars - RSS feed http://zeptobars.com/en/ Microelectronics. Die-shots. Artificial intelligence. Lasers. en-us Tue, 10 Jun 2006 04:00:00 GMT Wed, 05 Oct 22 14:00:39 +0300 webmaster@zeptobars.com 120 10 <![CDATA[RCA CD40106BF - Hex Schmitt-Trigger Inverters : weekend die-shot]]> http://zeptobars.com/en/read/RCA-CD40106BF-Hex-Schmitt-Trigger-Inverters-CMOS

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Sat, 01 Oct 22 08:24:16 +0300
<![CDATA[RCA CA3019 - 6xBJT transistor array : weekend die-shot]]> http://zeptobars.com/en/read/RCA-CA3019-BJT-transistor-array 2 transistors in CA3018 - here they are.




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Sun, 11 Sep 22 04:16:34 +0300
<![CDATA[Motorola MC14502 - hex buffer/inverter with enable : weekend die-shot]]> http://zeptobars.com/en/read/Motorola-CD4502-MC14502-hex-buffer-inverter-enable-CMOS

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Sat, 10 Sep 22 03:26:58 +0300
<![CDATA[RCA CA3018 - 4xBJT transistor array : weekend die-shot]]> http://zeptobars.com/en/read/RCA-CA3018-BJT-transistor-array Die size 1007x1005 µm.


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Sun, 04 Sep 22 21:47:16 +0300
<![CDATA[SEM deep dive #1 : weekend die-shot]]> http://zeptobars.com/en/read/SEM-deep-dive-1
First K122UN2 - dual stage audio amplifier:




1KT901 - 5 channel analog MOSFET commutator:


National LM710CH - Voltage Comparator:


Motorola MC1596G - balanced modulator/demodulator:


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Thu, 01 Sep 22 06:25:27 +0300
<![CDATA[RCA 4044BF - Quad NAND RS Latch : weekend die-shot]]> http://zeptobars.com/en/read/RCA-4044BF-Quad-NAND-RS-Latch

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Thu, 01 Sep 22 05:28:22 +0300
<![CDATA[Laser decapsulation - not so fast]]> http://zeptobars.com/en/read/laser-decapsulation-fail-not-so-fast

The issue is that while plastic is gone, so does all content of the chip. if you don't zoom too close - it looks like it's a success, die & bondwires are there, but it's a total failure. Alternatively, glass spheres just cover everything and "protect" material below.




Any hints, tips or tricks how to make it work? Or it only works for non-filled plastic?
I am thinking about air assist, oblique angle, increasing spot size (=larger focal distance lens).

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Sat, 09 Jul 22 23:27:45 +0300
<![CDATA[DW01R - LiIon protection chip : weekend die-shot]]> http://zeptobars.com/en/read/DW01R-LiIon-protection DW01R is a LiIon battery protection chip - and saves millions of homes from burning down.

Die size - 769x757 µm.


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Fri, 01 Jul 22 12:56:13 +0300
<![CDATA[National LH0042CH - hybrid opamp with FET frontend : weekend die-shot]]> http://zeptobars.com/en/read/National-LH0042CH-hybrid-opamp-FET-SEM
Main die size 1053x825 µm, frontend die 567x520 µm.


Main die:


Frontend die:


Packaged on a tiny ceramic interposer that fits into TO-99. All Gold-colored parts are 100% Gold. TO-99 pins though are only Gold-plated.


And now lets see it under SEM. Here we can see saw marks that only go half way in thickness, and crack going all the way.






Looking at the crack, FET die also seems to have different crystallographic orientation of Silicon substrate.



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Mon, 06 Jun 22 22:27:16 +0300
<![CDATA[ITT Intermetall SAH181 - 30% of 70's multimeter : weekend die-shot]]> http://zeptobars.com/en/read/ITT-Intermetall-SAH181-sequencer-ADC-multimeter 7 segment decoder.

Die size 1697x1439 µm.


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Sun, 29 May 22 08:44:31 +0300