ZeptoBars - RSS feed http://zeptobars.com/en/ Microelectronics. Die-shots. Artificial intelligence. Lasers. en-us Tue, 10 Jun 2006 04:00:00 GMT Sun, 22 Apr 18 07:29:21 +0300 webmaster@zeptobars.com 120 10 <![CDATA[HP DeskJet 840c thermal inkjet printing head : weekend die-shot]]> http://zeptobars.com/en/read/HP-DeskJet-840c-thermal-inkjet-printing-head
Die size 15.12x4.39 mm.

Inkjet nozzles on a Kapton tape are likely ion-etched, laser drilled holes should have been much less perfect. On the other hand positions of nozzles are slightly not regular.

Nozzle diameter is 25µm, nozzle pitch is 75µm.

Wed, 28 Feb 18 07:54:04 +0300
<![CDATA[Diodes (?) AH284 - brushless fan controller with integrated hall sensor : weekend die-shot]]> http://zeptobars.com/en/read/Diodes-AH284-brushless-fan-hall-effect-sensor-ThermalRight-X-silent-120 Die size 1360x1118 µm.

Tue, 27 Feb 18 10:14:52 +0300
<![CDATA[MOC3061 - Zero-cross optoisolated triac driver : weekend die-shot]]> http://zeptobars.com/en/read/MOC3061-Zero-cross-optoisolated-triac-driver-phototriac Die size 1378x1309 µm.

Sun, 10 Dec 17 04:22:04 +0300
<![CDATA[Noname LED blinker : weekend die-shot]]> http://zeptobars.com/en/read/noname-LED-blinker
Chip internals are more complicated than one would imagine - there are 5 LED channels, only 2 of which are used here. Layout resembles other blinkers we've seen in the past (flicker, RGB). It's fascinating that there is a company somewhere specialized in making LED blinkers of various kind and doing just fine.

Die size 587x479 µm.

Mon, 27 Nov 17 02:44:19 +0300
<![CDATA[UMC UA6538 - Dendy (NES compatible) PPU : weekend die-shot]]> http://zeptobars.com/en/read/UMC-UA6538-Dendy-NES-Nintendo-PPU nesdev.com.

Die size 4578x4069 µm.

Max resolution, if you really want to (288Mb).

After etching metal layers:

Max resolution, if you really want to (200Mb).]]>
Tue, 31 Oct 17 08:05:46 +0300
<![CDATA[Philips NE5532A : weekend die-shot]]> http://zeptobars.com/en/read/Phillips-NE5532A-opamp-audio genuine Ti NE5532 than to fake.

Tue, 03 Oct 17 11:36:12 +0300
<![CDATA[Ti NE5532 - real vs fake : weekend die-shot]]> http://zeptobars.com/en/read/Ti-NE5532-real-vs-fake-opamp
Genuine Ti NE5532 has die size of 2103x2154µm.

Fake Ti NE5532 is much smaller and have much simpler design. Bare minimum to operate as opamp:

SnipTheCat at EEVBlog forum noticed that these have much slower slew rate vs datasheet.

This IC was from one of these "Ti NE5532 100pcs for 4$" ebay lots. On the back side it was marked as "Tdsemic", which probably means it was manufactured/packaged at 拓电半导体(香港)有限公司 (TD SEMICONDUCTOR LIMITED.).
Tue, 03 Oct 17 10:21:50 +0300
<![CDATA[ST TSC1031IDT 70V high-side current sense amplifier : weekend die-shot]]> http://zeptobars.com/en/read/STM-TSC1031IDT-high-voltage-high-side-current-sense-amplifier STMicroelectronics TSC1031 allows to amplify differential signal with high common-mode voltage (up to 70V) while having low VCC (2.7 to 5.5V) which is very useful for high-side current sensing.

Die size 422x437 µm.

Sun, 17 Sep 17 17:22:30 +0300
<![CDATA[Ti TLC5540I 8bit 40MSPS semiflash ADC : weekend die-shot]]> http://zeptobars.com/en/read/Ti-TLC5540I-8bit-40MSPS-ADC-semiflash Ti TLC5540I is a CMOS semi-flash 8bit 40MSPS ADC. Die is much smaller than simple 8bit flash ADC.

Die size 1699x1801 µm, 1µm minimum half-pitch.

Core at higher resolution:

Closer look at resistor matrix. Not much is visible through 2 metals:

Mon, 24 Jul 17 01:25:47 +0300
<![CDATA[Fairchild LM555CMX : weekend die-shot]]> http://zeptobars.com/en/read/Fairchild-LM555CMX-555

Sun, 23 Jul 17 20:31:48 +0300