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57-chip-write

$9,823.88

In stock

SKU

2088

Asset valuation: $3,600,000,000. Project 57 · cri-one.com portfolio · 2026-07-04 Kitchen-table chip fabrication. Desktop object writer that inscribes circuits onto optically-written blank substrates. The consumer end of the AutoPhi story.

For the curious

A chip should be something you can make at the kitchen table. WritePhi's writer is a bench-top box, and the blank it writes into is the same 120 mm polycarbonate disc, the same 405 nm laser and the multi-layer stack the Blu-ray Disc Association settled on in 2010. The drive is a commodity BDXL assembly; the new part is firmware that retasks it from storing data to inscribing circuits, and a custom-chemistry blank that comes out as a circuit processor, not a data disc.

Write a chip in Python or C, compile it to a write program, load a blank and press write. A matched dicing station reads the fiducials the writer inscribed and cuts the disc into dies. Each die drops into a user-replaceable socket-BGA package, and the packages populate a multi-socket box or a PCIe 5.0 add-in card. Swapping a die takes under thirty seconds with no tools, no cleanroom and no board rework. Features reach two microns on the medium-grade blank and half a micron on the high grade.

This is the consumer end of the AutoPhi story. It is for homes, classrooms, laboratories and small defence workshops, and for the engineering buyer who wants the whole six-SKU line - writer, blanks, dicer, packages, chassis, design library. No prototype exists yet; every figure is a design target. The buyer walks away with the complete engineering package, specifications and ERC-clean KiCad 10 schematics included, while the IP, with its filed USPTO applications and its 2017 Invent Depositions priority date, stays with the inventor.

Details

Description

WritePhi — Kitchen-Table Chip Fabrication (Project 57)

Inventor: Christopher Gabriel Brown.

Priority date: 2017-11-24 — printed publication Invent Depositions (ISBN 978-1-979767-89-7), single-author, first shipped 2017-11-24, operative under 35 U.S.C. § 102(a)(1).

Inventor-record anchors: entries 1443–1458 of the master IP catalog.

Framework patent filing: USPTO Application No. 19/693,405, Confirmation 5107, filed 2026-05-30, 20 claims, non-provisional utility, pro se.

WritePhi-specific patent filing: USPTO Application No. 19/731,098, Confirmation 5973, Patent Center 78285110, filed 2026-07-05 — Verification-Gated Compile-and-Optical-Write Pipeline for Photolithographic Circuit Substrates .

UniPhi wireless patent: USPTO Application No. 19/717,706, Confirmation 7171, filed 2026-06-24, non-provisional utility, pro se.

Status: DESIGNED — complete engineering package at inventor’s ceiling. No prototype exists. All performance figures are design targets, not measured guarantees.

Specification revision: 0.3 (2026-07-04). SKU 2088.

Overview

WritePhi is a six-SKU semiconductor-fabrication and user-in-place chip-replacement product family that brings circuit printing to the household, classroom, laboratory, and small-defence workshop. The desktop object writer inscribes circuits onto optically-written blank substrates standardised on the BDXL 100 GB / 128 GB physical envelope — the same 120 mm × 1.2 mm polycarbonate disc, the same 405 nm write laser, and the same multi-layer stack architecture the Blu-ray Disc Association finalised in 2010. The written blank is a circuit processor , not a data-storage medium.

The product family forms a complete fabrication → dicing → packaging → integration vertical: design a chip in Python or C, compile it to a write program, load a blank, press write, dice the written blank into individual dies, socket each die into a user-replaceable BGA package, and populate a multi-socket chassis or PCIe 5.0 add-in card. Die replacement takes under 30 seconds with no tools, no cleanroom, and no PCB rework.

The engineering package delivered here is the consumer end of the AutoPhi architecture family — the household counterpart to Day-One Fabrication (Project 21), which ships an appliance to a commercial foundry.

The Six SKUs

SKU What It Is Role

WRITEPHI-WRITER Desktop BDXL-based object writer — the appliance Flagship, one-time revenue

WRITEPHI-BLANK (M / H / M-P) Writable BDXL-envelope substrates Consumable — recurring revenue

WRITEPHI-DICER (M / H) Post-write galvo UV laser dicing station Second-appliance revenue

WRITEPHI-PKG (M / H) Socket-BGA package — user-replaceable in-place die Package-per-chip revenue

WRITEPHI-LIB Paid design library subscription — marketplace of pre-designed chips Recurring revenue (annuity)

WRITEPHI-CHASSIS (BOX 4/8/16, CARD 4/8) Multi-socket assembly (standalone box or PCIe 5.0 add-in card) Chip-level integration

Plus WRITEPHI-BED — whole-disc aggregator (8 / 16 / 32 sockets), complementary to CHASSIS.

WRITEPHI-WRITER — The Desktop Object Writer

Parameter Design Target Notes

External envelope 400 mm × 400 mm × 250 mm Bench-top; fits under a standard cabinet

Weight ≤ 25 kg Two-person lift not required

Mains input 120 V AC / 15 A single-phase (US) 240 V variant for export deferred to buyer

Standby power ≤ 15 W Household-appliance-class

Peak power (during write) ≤ 1,200 W Fits a 15 A / 120 V circuit with headroom

Acoustic emission ≤ 55 dBA @ 1 m Classroom-compatible

Ambient operating temperature 15–30 °C Household / classroom

Vibration isolation ≥ 40 dB @ 10 Hz Elastomer feet reference

Warmup to write-ready ≤ 90 s Thermal + optical calibration

Write duration (M-grade) 8–25 min per blank Depends on circuit complexity

Write duration (H-grade) 25–90 min per blank High-resolution grade

Host interface USB-C 3.2 Gen 2×2 (20 Gbps) Primary; UniPhi wireless optional

Compute AutoPhi 1Z-Edge class controller 1 GB LPDDR4, 8 GB flash

Controller PCB 65 components, 67 nets ERC-clean KiCad 10 schematic

BOM cost estimate ~$95 per controller at 1,000 volume Excludes AutoPhi 1Z-Edge

The write head is a matured, commodity BDXL optical-drive assembly — 405 nm blue-violet laser diode, high-NA objective, focus + tracking servos, spindle motor, and blank load/eject mechanism. Consumer BDXL drives have shipped since 2010. WritePhi’s contribution over the stock drive: custom write firmware that retasks the drive from data-storage writing to circuit-processor writing, and a custom-chemistry blank the drive writes into.

WRITEPHI-BLANK — The Writable Substrate

Parameter M-Grade H-Grade M-P (Portable)

Physical envelope 120 mm × 1.2 mm 120 mm × 1.2 mm 60 mm × 1.0 mm

Layer count 3 write layers 4 write layers 1–2 write layers

Focus range (§ 1454) ±20 µm depth tolerance ±5 µm, motorised Z per tile ±20 µm

Effective feature size ≥ 2 µm ≥ 0.5 µm ≥ 2 µm

Shelf life (unwritten) ≥ 24 months sealed; ≥ 10 years post-write archival

Material stack (Path 1): anti-reflection coat (100–200 nm) → protective hard-coat cover (100 µm BDXL-standard) → custom circuit-forming recording layers × N (100–400 nm per layer) with inter-layer dielectric (5–20 µm) → bond layer → polycarbonate substrate carrier (1.1 mm) → rear lacquer coat → grade + orientation machine-readable mark.

Two paths: Path 1 ships a custom-chemistry blank in the BDXL envelope (the SKU). Path 2 lets early adopters repurpose stock BDXL blanks with a follow-on process step (appendix, not a SKU).

WRITEPHI-DICER — Galvo UV Laser Dicing Station

Parameter DICER-M (UV Nanosecond) DICER-H (UV Picosecond)

Laser wavelength 355 nm 355 nm

Average power 5–10 W 10–20 W

Pulse width 10–30 ns 10–15 ps

Repetition rate 30–100 kHz 200 kHz–2 MHz

Kerf width 20–50 µm 10–20 µm

Positional accuracy ± 10 µm ± 3 µm

Cutting speed 200–500 mm/s 300–800 mm/s

Full-disc dice time (32–64 dies) 3–8 min 4–12 min

Heat-affected zone ≤ 20 µm ≤ 5 µm

External envelope 500 mm × 500 mm × 400 mm, ≤ 35 kg, ≤ 1,500 W peak

Controller PCB 80 components, 72 nets, ERC-clean KiCad 10 schematic

BOM cost estimate ~$135 per controller at 500 volume

The novelty step: vision alignment to WRITER-inscribed fiducials — hub fiducial, six circumferential fiducials at 60° intervals, and per-tile corner fiducials. The DICER reads marks the WRITER inscribed for exactly this purpose, then dices along circuit-tile boundaries known only to the WRITER. This converts a mature laser-cutting subsystem into a matched appliance.

WRITEPHI-PKG — Socket-BGA Package

Parameter PKG-M PKG-H

Contact type Spring-finger cantilever or elastomer Pogo-pin spring probes

Contact pitch 1.0 mm 0.5 mm

Contact count 64 signal + 16 power/ground + 4 test = 84 128 signal + 32 power/ground + 8 test = 168

BGA ball count 12 × 12 = 144 16 × 16 = 256

BGA ball pitch 1.0 mm 0.8 mm

Package footprint 20 × 20 mm 30 × 30 mm

Socket PCB layers 4 (FR-4) 6 (Megtron 6 low-loss)

Mating cycles ≥ 10,000 ≥ 100,000

Contact resistance ≤ 40 mΩ ≤ 30 mΩ

Power envelope (passive / heatspreader / active) ≤ 500 mW / ≤ 1.0 W / ≤ 2.0 W ≤ 1.0 W / ≤ 2.5 W / ≤ 5.0 W

Temp sensor TMP112 (± 0.5 °C) TMP117 (± 0.1 °C)

ESD protection RClamp0854S (DNP option) RClamp1651 16-line (populated)

On-socket LDO — TPS7A47 (VDD_PLL isolation, PSRR ≥ 80 dB)

Schematic 35 components, 23 nets 48 components, 38 nets

BOM cost target ≤ $8 @ 10k volume (~$5.60 actual) ≤ $45 @ 1k volume

The productisation advantage: polycarbonate softens at 145 °C — below any solder reflow profile. The socket architecture is what the physics forces, and it is what turns every WritePhi die into a user-replaceable-in-place chip. Pop out, drop in, close cam lever. No board scrap, no rework station.

WRITEPHI-CHASSIS — Multi-Socket Assembly

Form Factor Sockets Host Interface Envelope

CHASSIS-BOX-4B 4 × PKG-M or -H USB-C + UniPhi wireless 200 × 150 × 60 mm

CHASSIS-BOX-8B 8 × PKG-M or -H USB-C + UniPhi + 10GbE-over-fibre 300 × 200 × 80 mm

CHASSIS-BOX-16B 16 × PKG-M or -H USB-C + UniPhi + 10GbE + external hyperthreading 400 × 300 × 100 mm

CHASSIS-CARD-4C 4 × PKG-M or -H PCIe 5.0 x8 edge Full-height half-length PCIe card

CHASSIS-CARD-8C 8 × PKG-M or -H PCIe 5.0 x16 edge Full-height full-length PCIe card

Hyperthreading backplane: in-board solid-state hyperthreading (§ 1455–1456) at ≥ 25 Gbps per link, ≤ 50 ns socket-to-socket latency. Optional external copper cable (§ 1457, 100 Gbps aggregate, ≤ 500 ns) and fibre-optic (§ 1458, 200 Gbps, ≤ 2 µs at 100 m).

CHASSIS-CARD-4C reference board: 91 components, 96 nets, ERC-clean KiCad 10 schematic. BOM cost ~$180 per card at 1,000 volume. Drops into any PCIe 5.0 host — Intel Z690/Z790/Z890, AMD X670E/X870E, Sapphire Rapids Xeon-W, EPYC 9004/9005, or portfolio-native AutoPhi PCIe5-256 (Project 39) / PCIe5-1536 (Project 44).

WRITEPHI-BED — Whole-Disc Server Bed

Variant Sockets Footprint

WRITEPHI-BED-8 8 300 × 200 × 100 mm

WRITEPHI-BED-16 16 400 × 300 × 150 mm

WRITEPHI-BED-32 32 500 × 400 × 200 mm

Per-socket: ≤ 40 W burst. Whole-disc aggregation via hyperthreading backplane reads as one system-on-chip to the host. Invention 1453: “many optical circuit objects in order on a server bed of input ports meaning a group of objects working as system on chips.”

WRITEPHI-LIB — Paid Design Library

Annual subscription marketplace of design files that compile to WritePhi write programs. Seed catalog: 1,000 IC designs from Parts Future (Project 24). Compile target: Python SDK, C SDK, or JSON-schema circuit description → .wpprog write program.

Native IC Designs — Five Reference Chips

SKU Grade Function Transistors Signal Pads .wpprog Size

WPIC-INVERT-01 M Hello-world CMOS inverter + 4-bit ripple counter 27 8 602 B

WPIC-UART-01 M 8N1 UART transceiver, 4-bit BAUD_SEL, 9600–921600 baud 300 12 3,958 B

WPIC-PWM-01 M 4-channel 12-bit PWM controller 480 58 7,038 B

WPIC-SPI-DAC-01 H 4-channel 12-bit SPI DAC with R-2R ladders 906 10 11,250 B

WPIC-AES-CORE H AES-128 encrypt accelerator, byte-serial, NIST FIPS 197 3,160 32 38,698 B

Total 4,873 — 61,546 B

Each design ships with a compilable design.py , a SPEC, and a ready-to-write .wpprog . A reference carrier board for WPIC-SPI-DAC-01 is included — RP2040 host, WRITEPHI-PKG-H socket, 4 SMA outputs, 56 components, ERC-clean KiCad 10 schematic.

Beyond the five reference designs, the burn payload contains 10 additional compiled ICs: WPIC-INVERT-02, WPIC-COUNTER-01, WPIC-COUNTER-04, WPIC-ADD-4, WPIC-REG-8, WPIC-MEGA-COUNTER-ARRAY, WPIC-ADD-08, WPIC-REG-16, WPIC-MEGA-1600, and WPIC-COUNTER-08 — with rendered die SVG floorplans, compiled .wpprog byte streams, and per-IC specs.

SDK — Design-File Authoring & Write-Program Compilation

Path Language Role

sdk/python/ Python 3.11+ Authoring API — VirtualTransistor, Interconnect, Pad, TargetGrade primitives. Emits .wpprog

sdk/c/ C (no-std) Host driver + design-library client. USB-C bulk transport, UniPhi wireless

sdk/schemas/ JSON Schema Machine-readable spec for design files, write programs, calibration reports

The compiler embeds a switch-level simulator inside the compile step and refuses to emit the .wpprog byte stream if any testbench assertion fails. A design that does not compute its specified truth table cannot be written to substrate. This verification-gated pipeline is the subject of USPTO Application No. 19/731,098.

Firmware

Family Language Runs On Scope

writer_control C, no-std AutoPhi 1Z-Edge (WRITER-CTRL board) BDXL drive control, tray, thermal/optical calibration, .wpprog interpreter, USB-C/UniPhi transport, fault handling

dicer_control C, no-std AutoPhi 1Z-Edge (DICER-CTRL board) Galvo + XY stage + laser gating + vision-alignment loop, .wpdice interpreter

chassis_control C, no-std AutoPhi 1Z-Edge (CHASSIS backplane) Bus-master firmware, hyperthreading fabric, socket map

Writer firmware state machine: POWER_ON → BOOT_SELF_TEST → IDLE_NO_BLANK → IDLE_BLANK_LOADED → CAL_THERMAL → CAL_OPTICAL → WRITE_IN_PROGRESS → WRITE_SELF_VERIFY → WRITE_DONE. Twelve defined fault codes from E_BOOT_INTEGRITY through E_ESTOP .

Hardware Schematics Drafted

Board Components Nets Key ICs

WRITER-CTRL 65 67 AutoPhi 1Z-Edge, TUSB1044, TPS65982, DRV8825, MCP3208, MAX1968, MAX31865, DRV8801

DICER-CTRL 80 72 AutoPhi 1Z-Edge, AD5754, TMC5160 ×2, TPS1H100

CHASSIS-CARD-4C 91 96 AutoPhi 1Z-Edge, Si53306, TPS53681, TPS543C20 ×4, TPS62933, TPS7A47, AT24C64, PCA9548

WRITEPHI-PKG-M 35 23 TPS3808, TMP112, RClamp0854S (DNP)

WRITEPHI-PKG-H 48 38 TPS7A47, TPS3808, TMP117, RClamp1651

All schematics are generated by Python factories ( gen_schematic.py ) importing a shared hardware/_factory.py . All target ERC-clean in KiCad 10 (S-expression format, FMT_VERSION 20231120). Every board uses only the Python standard library — no pip dependencies.

Consumer Compatibility

Category Verified References

BDXL optical drives Pioneer BDR-212, LG WH16NS40, ASUS BW-16D1HT, Panasonic UJ-260

BDXL blanks (Path 2) Verbatim BD-R XL 100 GB, Panasonic LM-BE100J, Sony BNR3VAPS4, JVC BD-R XL, Verbatim M-DISC BD-R XL

PCIe 5.0 hosts Intel Z690/Z790/Z890, AMD X670E/X870E, Sapphire Rapids Xeon-W, EPYC 9004/9005, AutoPhi PCIe5-256 / PCIe5-1536

USB-C hosts Intel 12th gen+, AMD Ryzen 7000+, Apple Silicon (TB3/4/5)

Operating systems Windows 11 24H2+, Ubuntu 24.04 LTS, Fedora 40+, macOS 14 Sonoma+

Development tools KiCad 10+, Python 3.11+, C11 toolchain, Git 2.30+

Wire Formats

Format Magic Structure

.wpprog WPPROG01 Header (32 B) + calibration bytecode + write-sequence bytecode + self-verify reference + footer (16 B) with SHA-256 sign-off

.wpdice WPDICE01 Header (32 B) + alignment data + per-die records (rect + pin-1 chamfer + kerf-mode) + laser recipe + footer (16 B)

Four Target Markets

Market Reference Bundle

Education (K-12, university) 1 × WRITER + 10 × BLANK-M + 1-year LIB seat

Defence / national foundry 1 × WRITER + 1 × BED-16 + 100 × BLANK-H + LIB private-catalog

Prosumer / R&D lab 1 × WRITER + 1 × BED-8 + 25 × BLANK-H + LIB

Consumer DIY / maker 1 × WRITER + 5 × BLANK-M + LIB annual

Pricing — Sellable-Parts Structure

The store sells downloadable blueprints , not physical hardware. The buyer picks the specific blueprint(s) they want.

Tier Downloadable License Price (USD)

Study — Writer Blueprint writephi-writer.crione.zip Personal + educational $99

Study — Blank Blueprint writephi-blank.crione.zip Personal + educational $99

Study — Dicer Blueprint writephi-dicer.crione.zip Personal + educational $99

Study — PKG Socket-BGA Blueprint writephi-pkg.crione.zip Personal + educational $99

Study — Chassis Blueprint writephi-chassis.crione.zip Personal + educational $99

Study — Library + IC Designs writephi-lib.crione.zip Personal + educational $99

Study — Full Family Blueprint writephi.crione.zip Personal + educational $999

Commercial Blueprint License writephi.crione.zip Build and sell products $24,999

Build-Help + Commercial writephi.crione.zip + 40 h inventor support Commercial $250,000

Engineering-Package Acquisition writephi.crione.zip + trademarks licence + hand-off Full commercialisation $12,750,000

Included in All In One (20T) Portfolio bundle Full at max licence Bundled

Intellectual Property Record

Entry Concept WritePhi Role

1448 Optically written magnetic object — circuit processor baseline Substrate physics baseline

1449 Optically written object blank — circuit processor on disc Blank media SKU

1450 Portable optically written object blank Portable blank SKU

1451 Object writer for the portable blank — household circuit printing Writer appliance SKU (flagship)

1452 Paid instructions for the object writer — DIY marketplace Paid design library / marketplace

1453 Many optical circuit objects on a server bed — group as SoC Server-bed / chassis SKU

1454 Optical circuit focus range — resolution metric M/H grade specification

1455–1456 In-board solid-state threading / hyper-threading Server-bed / chassis backplane

1457 Hyper-threading cable Chassis-to-chassis copper link

1458 Hyper-threading fibre-optic cable Chassis-to-chassis optical link

1443–1447 Multiple-cycles looping optical calculation, virtual transistors in optical thread, optical processing language SDK compile target, multi-pass write mode

Portfolio Sibling Projects (Arms-Length)

Project Role in WritePhi

18 — AutoPhi Future Architecture family — compile target ISA

21 — Day-One Fabrication Commercial-foundry counterpart

23 — AutoPhi 1Z Accelerator (3.5 ZFLOPS) Reference server-bed compile target

24 — Parts Future (1,000 IC designs) Seed catalog for WRITEPHI-LIB

53 — UniPhi Retroactive Wireless Adapter Optional wireless writer link (USPTO 19/717,706)

54 — WiFi Accelerators Optional design-library sync channel

What Is in the Package

The downloadable bundle writephi.crione.zip contains 70 files (254,234–319,129 bytes depending on bundle variant). SHA-256 integrity hash on file. The full project source tree spans 277 files across hardware, firmware, SDK, IC designs, patent materials, figures, bundle manifests, and documentation.

Category Contents

Specifications SPEC.md (rev 0.3), PRODUCT_BRIEF.md , PLAYBOOK.md , LICENSE.md , COMPATIBILITY.md , IC_DESIGN_INDEX.md , MANIFEST.json , HONEST_COMPARISON.md , LOOP.md

Hardware specs WRITER_APPLIANCE_SPEC.md , BLANK_MEDIA_SPEC.md , DICER_SPEC.md , PKG_SOCKET_BGA_SPEC.md , CHASSIS_SPEC.md , SERVER_BED_SPEC.md

Board schematics (KiCad 10) WRITER-CTRL (65 comp / 67 nets), DICER-CTRL (80 / 72), CHASSIS-CARD-4C (91 / 96), PKG-M (35 / 23), PKG-H (48 / 38) — each with gen_schematic.py , .kicad_sch , BOM.csv , SPEC.md

IC designs 15 native WritePhi ICs with design.py , SPEC.md , .wpprog , rendered SVG die floorplans. 4,873+ total transistors, 61.5 KB+ compiled write programs

Reference carrier board WPIC-SPI-DAC-01 carrier — 56 components, RP2040 host, 4 SMA outputs, ERC-clean KiCad 10

SDK Python authoring API ( design.py , compile.py , grades.py , simulate.py , testbench.py ), C host driver skeleton, JSON schemas

Firmware skeletons writer_control , dicer_control , chassis_control — C, no-std, state-machine specs, fault-code tables

Burn payload BURN_ME/ folder with 15 compiled ICs, SHA-256 manifest, verify.py , wafer SVG, wafer label PDF

Patent materials Filed disclosure (USPTO 19/731,098), 6 patent figures (SVG + PNG), filing options, framework filing reference

Figures Hero SVGs and PNGs for each SKU, store display images, symbol/icon assets

Prior-art scan google_patents_search_list.txt — curated queries for buyer’s counsel freedom-to-operate analysis

Sub-bundles 6 per-SKU Study bundles ( writephi-writer.crione.zip through writephi-lib.crione.zip ), each with SHA-256 companion

How this is delivered

This package ships on a single Blu-ray disc, posted to the delivery address on your order. The archive on the disc is AES-256 encrypted; the passphrase is sent separately, by email, once the disc is despatched — so the disc alone is of no use to anyone who intercepts it.

Discs are despatched by tracked, signed-for post. Allow 5 business days for mastering and verification before despatch.

WritePhi is a retained trademark of Christopher Gabriel Brown.

All performance figures are design targets, not measured guarantees.

Available exclusively to companies incorporated, headquartered, and primarily operating in the United States. USD only.

Communication by email and postal mail only — no phone calls, no brokers, no intermediaries.

Photo

Silver DVD-style disc with cut-out holes and an embedded circuit board (USB-C port, red LED) on a solder bench; label 'AUBURN MODIFIED DVD-C'

Footnotes

Product number 8507.
Family: fabrication writephi.
Purchase: When you buy, you buy the use of that blueprint only.

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