May 31, 2024

Sinowealth SH79F1616P - 8051 from your Microwave : weekend die-shot

Sinowealth SH79F1616P is what runs your Microwave. 12MHz, 16KiB flash, 512 bytes SRAM + extra 19 bytes of LED/LCD controller memory, 1KiB EEPROM-like memory. This chip comes from Sharp-branded microwave manufactured by ODM Guangdong Galanz Enterprises Co., Ltd.

Die size 2129x1563 µm.

May 16, 2024

Power Integrations LNK364PN - 6W AC/DC Converter : weekend die-shot

This is what powers your microwave. Includes on-chip 700V power MOSFET.
Die size 2455x1027 µm.

May 11, 2024

Intel D87C51FC - MCS-51 microcontroller (1980) : weekend die-shot

8051 (MCS-51) is a grandfather of today's embedded electronics, and probably can still natively run 20% of embedded code in use today. 87C51FC is a version where internal PROM is replaced with EPROM. It has 32KiB of UV-erasable EPROM and 256 bytes of SRAM. This is the first chip to survive Zeptobars lab visit as I have more plans for it. Die size 6143x4380 µm. EPROM cell size 12.76µm², SRAM cell size 470.5µm².

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May 10, 2024

AMD AM27C64 - 512K (8x64k) UV-erasable EPROM : weekend die-shot

Die size 2605x2786 µm. 1-bit cell size 2.54µm².

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May 5, 2024
May 1, 2024

Harris HA1-2425-5 - sample and hold amplifier : weekend die-shot

Die size 1798x14945 µm. Datecode 7428. Metal-ceramic package has gold everywhere (top, bottom and leads), no costs spared.

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April 30, 2024

CS2018EB - special purpose driver for microwave oven : weekend die-shot

CS2018 includes buzzer driver, and 4 relay drivers (2 + 2 safety channels). This is the chip that plays it's role in saving you from surprise microwave irradiation if you open microwave oven's door while it is working (even though there are multiple safety interlocks - do not try this at home!).
Die size 1740x1050 µm.