About Ledge

Ten Years in Shenzhen, Serving Global High-Reliability Electronics Manufacturing

Founded in 2014, Ledge Technology supports customers in healthcare, marine technology, rail transit, industrial control, and scientific instruments with end-to-end electronics manufacturing from prototype validation to production delivery. When reliability is not negotiable, we are the team you can still find on the line

Since2014

Ten years focused on high-reliability low-volume manufacturing, with more than a thousand projects delivered

ManufacturingDual Base

Two coordinated bases with flexible capacity for peak demand

Digital System90%+

Every active order covered, customers can track each work order remotely

CertificationsCertified System

ISO13485 / IATF16949 / ISO9001 / ISO14001 / IPC-A-610 CIT / CE / RoHS / FCC

Milestones

2014

Founded in Shenzhen

Ledge Technology was founded in Bao'an, Shenzhen. From day one, the company chose the path of low-volume and high-reliability manufacturing

How We Engineer

We don’t just build boards. We solve the problems around them.

Medical devices cannot fail in an operating room. Marine equipment cannot stop three thousand meters below the surface. Rail signal boards have to run for decades. The products are different, but the manufacturing requirement is the same: every solder joint must be traceable, every batch must stay consistent, and every decision must be backed by evidence

We have taken over test systems with only three pages of documentation, delivered complex conformal coating for deep-sea equipment, found replacements for end-of-life display modules, and pushed edge-computing gateways from prototype to production. The projects are different, but the method does not change: understand the objective, define the path, validate the critical risks, then move into delivery
Early Engagement

Start from the objective, not the drawing

We get involved while the BOM is still moving and the test plan is still open, helping customers define manufacturability boundaries before trial builds turn into expensive rework

Engineering Judgment

Incomplete information cannot stop the decision

When specifications arrive half-finished, we fill the gaps with process data, comparable program experience, and test logic, not guesswork, but engineering judgment backed by records

Supply Chain Depth

Scarce components are manageable, uncertainty is the real risk

We lock the last available lots of obsolete parts, validate replacement materials, and rebuild soldering windows for legacy components, supply security is prepared, not hoped for

Long-Term Partnership

Trust is earned through delivery, not promised in advance

Some customers no longer schedule routine on-site audits, not because standards dropped, but because batch consistency no longer needs to be questioned

Digital System

Proprietary Order Tracking System

From an internal initiative in 2019 to full coverage across every active production program, the system turned order progress, inspection reports, and material traceability from a black box into a visible operating window

V1 hit its ceiling quickly. Production data changed too fast and customer reporting needs varied too widely for a rigid architecture to keep up. The team made a call: rebuild it. V2 was redesigned from the foundation, and multiple iterations followed. At one point, even a live module was rebuilt again. To solve a data synchronization problem, engineers debugged until after midnight for two straight weeks. Later, a European customer wrote, “We no longer need to email for progress updates.” That was the moment the investment made sense

“We no longer need to email for progress updates.” — from a European customer email

Real-Time Order Progress

From material prep to shipment, updated at hourly resolution

Online Inspection Reports

AOI, X-Ray, and SPI records archived and searchable by work order

Material Batch Traceability

Supplier, inbound date, and point-of-use linked across three levels

Remote Confirmation

First-article and production status confirmed online without email back-and-forth

Our Culture

To become the most trusted long-term partner in high-reliability electronics manufacturing

Our customers’ products go into operating rooms, deep-sea equipment, rail systems, and laboratories. Those are not environments that tolerate “close enough.” Through engineering judgment and agile manufacturing, we help each product reach where it is needed, safely and reliably. We are already a trusted partner to global leaders, and the goal is simple: become the one they trust most

Our Belief

Culture does not live on the wall It lives in every review and every recheck

When we say quality is a habit, that claim is tested in every AOI review, every batch recheck, and every NPI discussion, culture is not what we say, it is what we keep doing

Engineering ReviewsBatch RechecksFirst-Article ApprovalContinuous Improvement
Ledge team working through an engineering review
Daily Engineering ReviewEvery decision adds up to who we are

The rigor in a review meeting, the recheck before shipment, the honesty inside every record

— Corporate Values
Intelliagile® — Intelligent and Agile

This is our registered trademark, but more importantly it is a decision rule. Anticipate risk with engineering experience and respond fast with flexible execution. No rigid thinking, no dead process

Customer as Partner culture value visual
Customer as Partner

No MOQ. We absorb excess purchases when needed. We join during development instead of waiting for the design to freeze. Supply chain resources are shared as if the program were our own

Quality as Habit culture value visual
Quality as Habit

Passing once is easy. Passing audits from the same customers year after year is harder. Some customers no longer schedule site audits, because consistency no longer needs a reminder

Sustainable Responsibility culture value visual
Sustainable Responsibility

Paperless reporting, dry-ice cleaning instead of chemical solvents, and selective wave soldering that improves workshop air quality. Every environmental action starts as a better engineering decision

Continuous Innovation culture value visual
Continuous Innovation

The proprietary order tracking system was rebuilt instead of protected. The SMT intelligent first-article inspection system was industry-first. Domestic-alternative validation reduces supply risk before shortages become failures. Innovation is not a KPI for one department. It is a built-in instinct

Green Factory and Supply Chain Responsibility culture proof visual
Green Factory and Supply Chain Responsibility

Social Responsibility · Green Factory

  • Paperless production reporting and digital shipping documentation implemented across the operation
  • ISO14001 certified, with waste sorting, wastewater treatment, and heat recovery at the Bao'an base
  • Dry-ice board cleaning introduced to replace traditional solvent-based cleaning
  • Selective wave soldering replaces part of manual soldering to reduce flux emissions and improve shop-floor air quality
  • Preferred suppliers are screened for RoHS, REACH, and conflict-minerals compliance
  • Customers are supported on CE, FCC, and RoHS environmental certification work
Team Care and Growth culture proof visual
Team Care and Growth

Team Care and Growth

  • Annual health checks, night-shift allowances, and holiday support
  • Golden Idea Award for process improvements proposed by front-line staff, with more than 30 implemented
  • Regular first-aid training, fire drills, and occupational health sessions
  • Skill-up programs in IPC certification, programming, and English, with internal transfer and continuous learning encouraged
  • Annual company travel and extra paid leave during Spring Festival
  • Internal technical forum “Ledge Lecture” where engineers rotate through real case sharing
  • Flat management with the founder directly involved in technical reviews
People who feel secure at work are the ones who build products others can trust
Engineering Innovation and Quality Habit culture proof visual
Engineering Innovation and Quality Habit

Innovation does not come from slogans, it comes from choices made inside the process

  • The same customers have audited us year after year, and some no longer repeat routine audits
  • The proprietary order tracking system was rebuilt instead of forcing a weak architecture to stay alive
  • The SMT intelligent first-article inspection system was industry-first, and domestic-alternative validation starts before shortages hit
  • NPI reviews happen before trial build, and every deliverable maps back to traceable process data
Team & Standards

The core team proves its judgment in process reviews, obsolete-part substitutions, and every traceable report

The founder and core team led the development of an industry-first SMT intelligent first-article inspection system and sold it to EMS providers around the world. Their understanding of error-proofing, traceability, process windows, and delivery boundaries comes from years on the production floor, not from theory. That experience is the judgment behind how Ledge handles complex programs
Engineering team reviewing inspection flow
Engineering JudgmentThey built an industry-first SMT intelligent first-article inspection system and still solve line-side data problems after midnight, judgment comes from experience, and experience comes from the floor
Shenzhen / Hong Kong / Canada

Ye Zaihui · Founder & CEO

Co-inventor of the SMT intelligent first-article inspection system. Founded Ledge in 2014 and leads strategy, technology, and global expansion

Bao'an, Shenzhen / Longgang, Shenzhen

Liang Jianyong · Head of Manufacturing

Co-inventor of the SMT intelligent first-article inspection system. Brings 15 years of shop-floor process management and leads operations across both manufacturing bases

Hong Kong / Cyprus / Spain

Head of R&D

Leads embedded software, test systems, and system architecture while connecting engineering resources across three locations

Shenzhen / Hong Kong

Head of Engineering

Responsible for hardware design, DFM, NPI, and engineering judgment that bridges design intent and manufacturing reality

Bao'an, Shenzhen

Head of Process Engineering

Focused on process-window control for SMT, DIP, selective wave soldering, coating, and high-reliability manufacturing

Shenzhen / Hong Kong

Head of Supply Chain

Leads authorized channels, overseas sourcing, obsolete component locking, and supply risk control

ISO13485IATF16949ISO9001ISO14001IPC-A-610 CITCERoHSFCC
The best kind of trust is when customers stop feeling the need to audit again