ZeptoBars - RSS feed http://zeptobars.com/en/ Microelectronics. Die-shots. Artificial intelligence. Lasers. en-us Tue, 10 Jun 2006 04:00:00 GMT Mon, 17 Feb 20 13:32:48 +0300 webmaster@zeptobars.com 120 10 <![CDATA[BF862 - low-noise N-Channel JFET (counterfeit?) : weekend die-shot]]> http://zeptobars.com/en/read/BF862-low-noise-N-Channel-JFET-J-FET-AM-preamp-2Ap Identified by Jeroen Ponte as probably counterfeit - which is especially likely as NXP stopped production of the original part.
Die size 426x399 µm.


]]>
Mon, 03 Feb 20 00:26:56 +0300
<![CDATA[140UD9 - general purpose Soviet opamp (1989) : weekend die-shot]]> http://zeptobars.com/en/read/140UD9-opamp-soviet-CA3047 K140UD2B this one has polymer overcoat, which causes interference pattern across the area due to thickness non-uniformity. 140UD9 is similar to CA3047 with differences in the final amplification stage.
Die size 1780x1780 µm.


]]>
Fri, 31 Jan 20 15:41:00 +0300
<![CDATA[1977 Unisonic Blackjack - Rockwell A4821 PMOS uC : weekend die-shot]]> http://zeptobars.com/en/read/1977-Unisonic-Blackjack-Rockwell-A4821-PMOS-uC here (+following parts) and here, some information about the game is here.


After etching metal:

]]>
Wed, 01 Jan 20 05:08:47 +0300
<![CDATA[Ti LMV324I - general purpose quad 5V opamp : weekend die-shot]]> http://zeptobars.com/en/read/TI-LMV324-LMV324I-LMV324A-general-purpose-5V-opamp-R2R
]]>
Thu, 26 Dec 19 15:57:36 +0300
<![CDATA[Infineon BFP540FESD - 30Ghz fT NPN BJT : weekend die-shot]]> http://zeptobars.com/en/read/Infineon-BFP540FESD-30Ghz-fT-NPN-BJT-RF

]]>
Mon, 09 Dec 19 06:42:00 +0300
<![CDATA[TI LMV321 - general purpose 5V opamp: weekend die-shot]]> http://zeptobars.com/en/read/TI-LMV321-general-purpose-5V-opamp-R2R ST TS321, but low-voltage only. New designs though should use LMV321A.
Die size 635x567 µm.


]]>
Sat, 07 Dec 19 08:54:04 +0300
<![CDATA[Segnetics NE558N - quad core 555 : weekend die-shot]]> http://zeptobars.com/en/read/Segnetics-NE558N-quad-core-555
]]>
Sun, 01 Dec 19 07:09:23 +0300
<![CDATA[YX8018 - Solar garden light IC : weekend die-shot]]> http://zeptobars.com/en/read/YX8018-garden-light-IC-NiMH

]]>
Sun, 17 Nov 19 10:23:02 +0300
<![CDATA[National MC74HC182N - ALU Carry Look-ahead : weekend die-shot]]> http://zeptobars.com/en/read/National-MC74HC182N-ALU-Look-ahead-Carry-Generator
Used back in the days when you built CPU's from TTL chips. Some still do it though : https://www.homebrewcpuring.org/
I hope one day I will have enough time to build one...


With metal etched:

]]>
Wed, 30 Oct 19 04:27:19 +0300
<![CDATA[Tesla MA7805 - 5V 2A voltage regulator : weekend die-shot]]> http://zeptobars.com/en/read/Tesla-MA7805-voltage-regulator Tesla (Czechoslovak electronics company) here.


]]>
Sat, 20 Jul 19 15:41:02 +0300