MPW / Shuttle access
SJ SEMI 0.25µm MPW
Plan a 0.25µm multi-project wafer run at SJ SEMI through TOMPW Service. We coordinate shared-mask access, EDA sign-off, shuttle scheduling and the downstream packaging or test path for global chip teams.
Why 0.25µm
0.25µm is one of the process options TOMPW coordinates as a shared-mask MPW run at the partner foundry. We handle slot selection, EDA checks and logistics so your design reaches the line on schedule.
What a 0.25µm MPW at SJ SEMI involves
A 0.25µm MPW (multi-project wafer) shuttle places several customer designs on one shared mask set, so each team pays only for its portion of the wafer. TOMPW Service handles slot selection, DRC/LVS review and logistics so your GDSII reaches SJ SEMI's line on schedule.
Step 1
GDSII & spec
Share your GDSII, target node and tape-out window.
Step 2
Slot & mask share
TOMPW books the next shuttle and aligns mask share.
Step 3
Wafer, package, test
Wafers returned, then package/test aligned as needed.
Platforms across SJ SEMI
Foundry-level platforms, not a list of everything 0.25µm offers. Which of these apply to your 0.25µm run is confirmed per project.
Notes on working with SJ SEMI
- SJ SEMI is a specialty foundry for power and automotive-grade platforms.
- TOMPW can coordinate SJ SEMI programs for Asia-based supply chains.
Best-fit applications
Expert reviewed
This page is reviewed by Henry, CEO, TOMPW Service. Henry is the CEO of TOMPW Service and a chip-design specialist with 20 years in the semiconductor industry.
Discuss a 0.25µm MPW at SJ SEMI
TOMPW Service can coordinate a 0.25µm MPW shuttle with SJ SEMI as part of a scoped execution path.
Email for a QuoteCOMMON QUESTIONS
Working with SJ SEMI 0.25µm MPW through TOMPW
Can TOMPW arrange a 0.25µm MPW shuttle at SJ SEMI?
Yes. TOMPW coordinates 0.25µm MPW and shuttle access at SJ SEMI for overseas teams, handling slot selection, EDA checks and logistics so your design reaches the shared mask on schedule.
What does a 0.25µm MPW run at SJ SEMI typically include?
A 0.25µm MPW run bundles your design onto a shared reticle with other projects, covering mask share and wafer fabrication at SJ SEMI. Wafer-level probe is included only on the shuttles that offer it, so we confirm probe coverage for the specific run before you commit. Packaging, final test and the NTO transition are scoped separately with TOMPW.
How long does a 0.25µm MPW cycle take at SJ SEMI?
Cycle time depends on SJ SEMI's shuttle cadence for 0.25µm, usually a few months from mask data to returned wafers. Missing a window means waiting for the next one, so TOMPW recommends booking early.
What comes after a 0.25µm MPW at SJ SEMI?
After a successful 0.25µm MPW, teams typically move to NTO or full-mask production. TOMPW helps plan that transition, including package selection, test development and volume ramp through SJ SEMI and downstream partners.
PLAN & ESTIMATE
Calculators for your 0.25µm MPW
Estimate dies per wafer, split shared-mask cost and model unit economics before you commit to a shuttle slot.
Die Per Wafer Calculator
Count complete dies from Shot/Field layouts with flat or notched wafer boundaries, edge clearance and optional yield estimates.
Open tool →MPW Cost Sharing Calculator
Allocate an agreed MPW shared cost by booked block area and block count, without predicting delivered dies.
Open tool →Wafer & Unit Cost Calculator
Turn a wafer run into a per-chip cost: dies per wafer, yield, packaging and test, plus a target margin.
Open tool →Tape-out Budget Estimator
Full program model: DPW, yield, packaging, HBM, test, NRE and volume → unit cost, price and gross margin.
Open tool →RELATED FOUNDRY PROFILES
Other foundries teams compare SJ SEMI with
RELATED SERVICES
Services that pair with a SJ SEMI 0.25µm MPW
MPW / Fab Shuttle
Compare public shuttle windows across foundries, control first-silicon cost and move from tape-out planning to wafer delivery with one execution path.
Learn more →Full Mask / Production Foundry
Move validated designs into dedicated mask production with yield, volume and supply planning support.
Learn more →Semiconductor Packaging
Semiconductor packaging through external assembly and test providers, with TOMPW coordinating package selection, supplier review and assembly-to-test handoff.
Learn more →Test & Product Engineering
Connect CP, FT and reliability planning so packaged silicon is measurable, debuggable and ready for customer evaluation.
Learn more →Turnkey ASIC Solutions
Unify design support, tape-out, packaging, test, board work and delivery under one execution-facing partner.
Learn more →RELATED MPW NODES
Other 0.25µm and SJ SEMI MPW access pages
Browse adjacent shuttle nodes so comparison and scheduling research stays on one program path.
SJ SEMI other nodes
0.25µm at other foundries
CROSS-FOUNDRY COMPARISON
Compare 0.25µm across foundries
0.25µm MPW is offered by 9 TOMPW-supported foundries including SJ SEMI. Use the node comparison tool to see per-foundry shuttle cadence, MPW cost-sharing and ecosystem notes side by side.