ZeptoBars - RSS feed http://zeptobars.com/en/ Microelectronics. Die-shots. Artificial intelligence. Lasers. en-us Tue, 10 Jun 2006 04:00:00 GMT Wed, 10 Aug 22 07:10:48 +0300 webmaster@zeptobars.com 120 10 <![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).

]]>
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.


]]>
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.



]]>
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.


]]>
Sun, 29 May 22 08:44:31 +0300
<![CDATA[Motorola MC1709CG - monolithic opamp : weekend die-shot]]> http://zeptobars.com/en/read/Motorola-MC1709CG-monolithic-opamp Die size 1140x1015 µm.



]]>
Sun, 22 May 22 02:24:34 +0300
<![CDATA[National LM301AH - general purpose opamp : weekend die-shot]]> http://zeptobars.com/en/read/National-semiconductor-LM301AH-General-Purpose-Opamp Motorola.


]]>
Mon, 16 May 22 00:58:05 +0300
<![CDATA[RCA CA3043 - FM receiver base : weekend die-shot]]> http://zeptobars.com/en/read/RCA-CA3043-FM-receiver-AF-IF-Limiter-amplifier Die size 1317x1284 µm.


]]>
Mon, 09 May 22 03:21:55 +0300
<![CDATA[National LM741CH - classical opamp: weekend die-shot]]> http://zeptobars.com/en/read/National-LM741CH-opamp

]]>
Sun, 08 May 22 09:53:40 +0300
<![CDATA[RCA CA3094 - Operational Transconductance Amplifier : weekend die-shot]]> http://zeptobars.com/en/read/RCA-CA3094BT-Operational-Transconductance-Amplifier-high-current Die size 1358x1104 µm.



Schematics are conveniently provided in the datasheet. Good old times...
]]>
Fri, 08 Apr 22 11:07:43 +0300
<![CDATA[RCA CD4000BE - CMOS standard logic : weekend die-shot]]> http://zeptobars.com/en/read/RCA-CD4000BE-CMOS-standard-logic

]]>
Sat, 08 Jan 22 16:47:18 +0300