ZeptoBars - RSS feed http://zeptobars.com/en/ Microelectronics. Die-shots. Artificial intelligence. Lasers. en-us Tue, 10 Jun 2006 04:00:00 GMT Fri, 16 Apr 21 19:16:38 +0300 webmaster@zeptobars.com 120 10 <![CDATA[1KT901 - 5 channel analog MOSFET commutator : weekend die-shot]]> http://zeptobars.com/en/read/1KT901-mosfet-analog-commutator-1975 Some information and references to internal schematics could be found in 701mk12 documentation.


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Thu, 01 Apr 21 12:22:33 +0300
<![CDATA[Motorola MC358G - ECL J-K Flip-Flop (1964) : weekend die-shot]]> http://zeptobars.com/en/read/Motorola-MC358G-ECL-J-K-Flip-Flop-1964 image from The National Museum of American History at Smithsonian. This chip is 57 years old, oldest among Zeptobars specimens. Motorola gets bonus points for pad in the middle of the die.

Die size 2016x1517 µm. Bond-wires feel more fragile than usual. Need to run EDS on them...


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Mon, 15 Mar 21 04:51:33 +0300
<![CDATA[Philips NE567D - tone-decoder/PLL : weekend die-shot]]> http://zeptobars.com/en/read/Philips-NE567D-Tone-decoder-PLL see below).




PS: This is comparison of as-imaged (gamma=1, no processing in imaging software at all) and processed photos (S-curve on RGB channels). No new colors - but they have become more saturated. Still no RGB illumination on my Olympus BX60 microscope, which would also increase saturation.
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Sun, 07 Mar 21 11:08:23 +0300
<![CDATA[Motorola 2N3501 - npn BJT : weekend die-shot]]> http://zeptobars.com/en/read/Motorola-2n3501-npn-bjt

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Mon, 22 Feb 21 10:30:49 +0300
<![CDATA[K1US671 - 3-stage FET amplifier : weekend die-shot]]> http://zeptobars.com/en/read/K1US671-3-stage-FET-amplifier-Kwazar-Kiev-Ukraine K1US671 is a 3-stage FET amplifier, made by Kwazar fab in Kiev, Ukraine, datecode 0278. Maximum rated frequency is 100kHz. Rated continuous linear acceleration limit 25g.

Die size 1246x1237 µm. Contamination & die crack are not mine (as it was in a metal can). Simple ICs in 1978 seems to forgive that.

PS. We are running low on metal-can and ceramic ICs. Let us know if you can send us some to open :-)

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Sun, 14 Feb 21 05:50:27 +0300
<![CDATA[Central 2N3808 - dual PNP BJT : weekend die-shot]]> http://zeptobars.com/en/read/central-cen-2N3808-dual-PNP-BJT Central Semiconductor 2N3808 has 2 separate PNP BJT dies in 1 metal package. This seems to be the most common layout of low-power BJTs.
Die size 343x340 µm.



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Mon, 08 Feb 21 00:57:34 +0300
<![CDATA[1US222 / K122UN2 - dual stage audio amplifier : weekend die-shot]]> http://zeptobars.com/en/read/1US222-K122UN2-audio-amplifier
Die size 1392x1412 µm.


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Sun, 31 Jan 21 12:24:19 +0300
<![CDATA[Analog AD741CH - classical opamp : weekend die-shot]]> http://zeptobars.com/en/read/Analog-AD741CH-opamp

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Mon, 04 Jan 21 02:53:48 +0300
<![CDATA[National LM710CH - Voltage Comparator : weekend die-shot]]> http://zeptobars.com/en/read/National-LM710CH-Voltage-Comparator
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Fri, 01 Jan 21 13:16:05 +0300
<![CDATA[Fairchild UA714HC - precision opamp : weekend die-shot]]> http://zeptobars.com/en/read/Fairchild-UA714HC-precision-opamp-fuses-trimming Die size 2528x1541 µm.


Closer look at trim area:

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Sun, 01 Nov 20 08:49:53 +0300