ZeptoBars - RSS feed http://zeptobars.com/en/ Microelectronics. Die-shots. Artificial intelligence. Lasers. en-us Tue, 10 Jun 2006 04:00:00 GMT Wed, 18 Jan 17 19:13:28 +0300 webmaster@zeptobars.com 120 10 <![CDATA[Vishay TSOP4838 - IR receiver module : weekend die-shot]]> http://zeptobars.com/en/read/Vishai-TSOP4838-IR-receiver-Remote-Control Vishay TSOP4838 - decodes IR commands sent with 38kHz modulation. This modulation (and narrow-band filter on receiver module) is required to eliminate ambient light sources which could flicker somewhere at 50-100Hz or 20-30kHz (bad CFL/LEDs). Black (IR transparent) plastic also helps with background noise.


Die size 590x594 µm.

Photodiode is on a separate die:

Die size 1471x1471 µm]]>
Mon, 16 Jan 17 17:37:37 +0300
<![CDATA[ST USBLC6-2 - USB protection chip : weekend die-shot]]> http://zeptobars.com/en/read/ST-USBLC6-2-USB-protection-diode-zener ST USBLC6-2 has 4 diodes and 1 Zener to protect your USB gear.
Die size 1084x547 µm.


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Mon, 26 Dec 16 00:01:11 +0300
<![CDATA[LM338K - 5A LDO in TO-3 : weekend die-shot]]> http://zeptobars.com/en/read/LM338K-5A-LDO-TO-3-TO-220

Die size 1834x1609 µm.

You can see why this giant package is nearly obsolete these days (it's been around since 1955) - tiny crystal on a large steel case is largely limited by steel thermal conduction. Modern packages with copper base could do better with much smaller packages.


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Sun, 18 Dec 16 17:03:54 +0300
<![CDATA[DTA143ZK - PNP BJT with bias resistors : weekend die-shot]]> http://zeptobars.com/en/read/DTA143ZK-PNP-BJT-bias-resistors-rohm-jcst Infinion BCR185W there are no even bias resistors under the pads, hence larger die size (426x424 µm).


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Sun, 18 Dec 16 01:10:06 +0300
<![CDATA[LM1813 - early anti-skid chip : weekend die-shot]]> http://zeptobars.com/en/read/LM1813-National-Semiconductor-anti-skid-Ford-Bob-Miller
Die size 2234x1826 µm.



Test chips on the wafer:


Thanks for the wafers goes to Bob Miller, one of designers of this chip. ]]>
Thu, 15 Dec 16 14:01:26 +0300
<![CDATA[CD4049 - hex CMOS inverter : weekend die-shot]]> http://zeptobars.com/en/read/CD4049-cmos-inverter-metal-gate
Die size 722x552 µm.


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Sat, 03 Dec 16 18:27:00 +0300
<![CDATA[JCST CJ431 : weekend die-shot]]> http://zeptobars.com/en/read/CJ431-JCST-Jiangsu-Changjiang-Electronics-Technology-voltage-reference Jiangsu Changjiang Electronics Technology (JCST).
Die size 620x631 µm.


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Mon, 28 Nov 16 09:10:57 +0300
<![CDATA[Infineon BCR185W - PNP BJT with bias resistors : weekend die-shot]]> http://zeptobars.com/en/read/Infinion-BCR185W-PNP-BJT-bias-resistors Infineon BCR185W is a 0.1A PNP BJT. Bias resisors are 10 kΩ and 47 kΩ according to datasheet.
Die size 395x285 µm.


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Sun, 13 Nov 16 20:19:01 +0300
<![CDATA[DVD photosensor : weekend die-shot]]> http://zeptobars.com/en/read/DVD-photosensor-quad-photodiode-astigmatic-focusing
Die size 1839x1635 µm.



Closer look at photo-diodes:

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Sat, 05 Nov 16 23:55:33 +0300
<![CDATA[K140UD2B - Soviet opamp : weekend die-shot]]> http://zeptobars.com/en/read/K140UD2B-opamp-RCA-CA3047T Die size 1621x1615 µm.


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Sat, 29 Oct 16 22:46:00 +0300