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Supply Chain Security

How Solar Panels Are Made: From Polysilicon to Module and Inverter

Quartz becomes polysilicon, then ingots, wafers, cells and laminated modules, and an inverter running firmware turns their DC into grid-ready AC power.

Oct 23, 202652 min read
Supply Chain Security

How a Rack Server Is Made: Motherboard, BMC, Firmware and Provisioning

A rack server is a motherboard, a BMC and a dozen firmware images built by different firms. See how it is assembled, signed and verified on delivery.

Oct 23, 202647 min read
Supply Chain Security

How an SSD Is Made: 3D NAND Flash, Controllers and Firmware

An SSD is 3D NAND stacked hundreds of layers high, a controller running a flash translation layer, and firmware. Here is each step, wafer to drive.

Oct 23, 202644 min read
Supply Chain Security

How a GPU Is Made: From Wafer to HBM Package and Accelerator Board

A GPU is made by printing logic dies on wafers, stacking DRAM into HBM, joining both on an interposer, then mounting the package on a module with firmware.

Oct 23, 202638 min read
Supply Chain Security

How a Home Router Is Made: Chipsets, Board Design, Firmware and Updates

A home router is a Wi-Fi SoC reference design on a small board, tested and FCC certified, running a Linux firmware image built from a vendor SDK.

Oct 23, 202653 min read
Supply Chain Security

Redfish Explained: DMTF's Server Management API and BMC Security

Redfish is DMTF's HTTPS and JSON API for server BMCs. Learn its data model, sessions, roles, firmware updates and SPDM, then lock your BMCs down.

Oct 23, 202647 min read
Supply Chain Security

How OLED and LCD Displays Are Made: From Glass Substrate to Finished Panel

Displays start as fusion-drawn glass, get a transistor backplane, then liquid crystal or OLED layers, sealing, touch, driver chips and firmware on top.

Oct 23, 202651 min read
Supply Chain Security

PTP (IEEE 1588) Explained: Clocks, Profiles and How to Secure It

PTP (IEEE 1588) syncs clocks to well under a microsecond. How Sync and Delay_Req work, how BMCA picks a leader, the profiles, and how to secure linuxptp.

Oct 23, 202654 min read
Supply Chain Security

Windows 11 Version History: Security Changes From 21H2 to 25H2

Windows 11 had five feature updates from 21H2 to 25H2. Here are the builds, support dates and the security defaults each release changed, with checks.

Oct 23, 202642 min read

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