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Bagian dalam IC ULN2003

http://zeptobars.ru/en/read/ULN2003-per-element-die-annotation ULN2003 - practical example of «reading» microchip schematic We often receive comments that while our microchip photos are beautiful and interesting, it is completely unclear how integrated circuit implements basic elements and form larger circuit. Of course it is impossible to do a detailed review of an 1'000'000 transistor chip, so we've found simpler example: ULN2003 - array of Darlington transistors. Despite it's simplicity this microchip is still widely used and mass manufactured. ULN2003 contains 21 resistors, 14 BJT transistors and 7 diodes. It is used to control relatively high load (up to 50V/0.5A) from microcontroller pin. Canonical use case - controlling segments of large 7-segment LED displays. ULN2003 die photo Colors are more saturated, metal under contact pads is damaged by acid and became brown. Die size is 2.53x1.71 mm. As we can see all 7 channels are i...
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Saudi, We Have a Problem: Where Are the Real Entrepreneurs

http://osamanatto.com/infographic-saudi-we-have-a-problem-where-are-the-real-entrepreneurs/ If you missed my previous post, Saudi, We Have a Problem: Where Are the Real Entrepreneurs , here’s a chance to pick up the main points of the article in one summarized infographic. The full text of the infographic is also written below the image for those who prefer text. Saudi, We Have a Problem: Where Are the Real Entrepreneurs Saudi Arabia is full of what I call wanna-preneurs. They attend entrepreneurship events, call themselves entrepreneurs, and even get other people to call them entrepreneurs, but they’re not real entrepreneurs. Here are the 5 categories Saudi wanna-preneurs fall into: 1. The Employee with the Hobby ✔ Has nice website, service, product, or retail outlet ✘ Still has traditional job or attends school full-time ✘ Not devoted to their company full-time ✘ Unsure about self, product, service, and/or market Hobbyist, not entrepreneur. 2. The Employee ...
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how-ataturk-made-turkey-secular

http://lostislamichistory.com/how-ataturk-made-turkey-secular/ How Atatürk Made Turkey Secular Jun. 11 Featured , Modern History , Ottoman History , Philosophy 59 comments The evolution of Turkey in the early 1900s is one of the most baffling cultural and social changes in Islamic history. In a few short years, the Ottoman Empire was brought down from within, stripped of its Islamic history, and devolved into a new secular nation known as Turkey. The consequences of this change are still being felt today throughout the Muslim world, and especially in a very polarized and ideologically segmented Turkey. What caused this monumental change in Turkish government and society? At the center of it all is Mustafa Kemal, better known as Atatürk. Through his leadership in the 1920s and 1930s, modern secular Turkey was born, and Islam took a backseat in Turkish society. The Rise of Atatürk The decision of the Ottoman Empire to ...
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