Hommer Zhao - PCB Portugal Founder

Hommer Zhao

Founder & Technical Director

WellPCB / PCB Portugal

15+
Years Experience
20
Articles Written
AUTHOR PROFILE

About Hommer Zhao

I founded WellPCB in 2008 with a simple mission: make professional PCB manufacturing accessible to companies of all sizes. What started as a small prototype shop in Shijiazhuang has grown into a multi-facility operation serving customers across Europe, North America, and Asia.

My background is hands-on engineering. Before starting WellPCB, I spent 5 years as a process engineer at a tier-1 automotive PCB supplier, where I learned the importance of quality systems and the real cost of defects. That experience shaped how we run our factories today.

I write technical articles to share what I have learned over 15+ years in this industry. My goal is to help engineers make informed decisions about PCB manufacturing without the marketing spin. When I recommend something, it is because I have seen it work in production, not because it sounds impressive.

Areas of Expertise

15+years

HDI & Multilayer PCB

Laser drilling, microvia technology, complex stackups

12+years

Flex & Rigid-Flex PCB

Polyimide materials, dynamic flex applications

15+years

PCBA Assembly

SMT, THT, BGA rework, quality control systems

10+years

Supply Chain Management

Component sourcing, turnkey manufacturing

15+years

Quality Systems

ISO 9001, ISO 13485, IATF 16949 implementation

Quality Systems Implemented

ISO 9001:2015 Quality Management
ISO 13485:2016 Medical Devices
IATF 16949:2016 Automotive
ISO 14001:2015 Environmental
UL Certification
CQC Product Certification

Articles by Hommer Zhao

Dec 18, 2024

PCB Materials Guide: FR4 vs Aluminum vs Flex vs Rogers

Complete comparison of the 4 main PCB substrate materials. Learn when to use FR4, aluminum MCPCB, flexible polyimide, or Rogers high-frequency laminates for your project.

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Dec 18, 2024

Produttori PCB: Italia vs Cina – Confronto Completo [2025]

Confronto dettagliato tra produttori di PCB italiani e cinesi. Analizzo prezzi, qualità, tempi di consegna e certificazioni dopo 15+ anni nel settore.

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Dec 18, 2024

Produttori PCB: Italia vs Cina – Confronto Completo [2025]

Confronto dettagliato tra produttori di PCB italiani e cinesi. Analizzo prezzi, qualità, tempi di consegna e certificazioni dopo 15+ anni nel settore.

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Dec 17, 2024

PCB Testing Methods Explained: ICT vs FCT vs AOI vs X-Ray

Complete guide to PCB testing and inspection methods. Compare ICT, FCT, AOI, X-Ray, Flying Probe, SPI, and Burn-in testing. Learn which combination ensures quality.

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Dec 17, 2024

FR4 vs Alluminio vs Rogers: Quale Materiale PCB Scegliere? [2025]

Guida completa ai materiali PCB: FR4, alluminio e Rogers a confronto. Proprietà termiche, elettriche, costi e applicazioni ideali per ogni materiale.

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Dec 17, 2024

FR4 vs Alluminio vs Rogers: Quale Materiale PCB Scegliere? [2025]

Guida completa ai materiali PCB: FR4, alluminio e Rogers a confronto. Proprietà termiche, elettriche, costi e applicazioni ideali.

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Dec 16, 2024

Turnkey vs Consignment PCBA: Which Model Saves You Money?

Which PCB assembly model is right for you? Compare full turnkey, consignment, and partial turnkey PCBA services. Cost analysis, pros/cons, and real-world recommendations.

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Dec 16, 2024

HDI vs Standard Multilayer PCB: Complete Technical Comparison

Complete HDI vs standard multilayer PCB comparison. Learn when to use HDI technology, cost differences, design rules, and manufacturing capabilities.

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Dec 16, 2024

Top 7 Errori nel Design PCB da Evitare [2025]

Gli errori di design PCB più comuni che causano ritardi e costi extra. Guida pratica con soluzioni.

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Dec 15, 2024

Top 10 Erros de Design PCB que Deve Evitar em 2024

Descubra os erros mais comuns no design de PCB que podem custar tempo e dinheiro. Guia completo com soluções práticas baseadas em mais de 15 anos de experiência.

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Dec 15, 2024

Wire Harness vs Cable Assembly: Types, Materials & Manufacturing

Complete guide to wire harnesses and cable assemblies. Learn the 8 main types, manufacturing processes, materials, and how to choose the right solution for automotive, medical, and industrial applications.

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Dec 15, 2024

SMT vs THT: Guida al Montaggio PCB [2025]

Confronto tra montaggio SMT e THT. Costi, velocità e applicazioni per ogni tecnologia.

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Dec 14, 2024

Top 10 Fattori per Scegliere Fornitore PCBA [2025]

I 10 fattori critici per scegliere un fornitore PCBA: certificazioni, qualità, comunicazione.

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Dec 13, 2024

Prototipo vs Produzione Massa PCB [2025]

Differenze tra prototipazione e produzione massa. Costi, tempi, quando passare.

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Dec 12, 2024

Top 5 Metodi Test PCB: ICT, FCT, AOI [2025]

Confronto metodi test PCB. Quando usare ciascuno e come combinarli.

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Dec 11, 2024

PCB Rigido vs Flessibile vs Rigid-Flex [2025]

Confronto PCB rigido, flessibile e rigid-flex. Applicazioni, costi, vantaggi.

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Dec 10, 2024

PCB Protótipo vs Produção em Massa: Guia Completo de Custos e Prazos

Compare as diferenças entre prototipagem e produção em massa de PCB. Entenda custos, prazos, MOQs e quando usar cada abordagem para o seu projeto.

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Dec 10, 2024

Top 8 Applicazioni Cablaggi Industriali [2025]

Principali applicazioni cablaggi: automotive, medicale, robotica, energia.

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Dec 9, 2024

Turnkey vs Consignment PCBA [2025]

Confronto modelli PCBA: turnkey, consignment, partial. Vantaggi e svantaggi.

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Dec 5, 2024

Guia Completo de Montagem SMT: Do Design à Produção

Tudo o que precisa saber sobre montagem SMT. Componentes, processo, inspeção, defeitos comuns e como garantir qualidade na sua produção.

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Have Questions About Your Project?

I personally review complex projects and DFM challenges. Send us your design files and I will provide feedback within 24 hours.