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6.7 Shelf-Life, Lot Traceability & Recall Readiness
Traceability is your insurance policy against total disaster. When a supplier announces a recall for a specific capacitor lot, or when a solder joint fails in the field, you have two options: recall everything you built that year (bankruptcy risk), or surgical...
6.8 Solder Paste, Flux, Chemicals Storage & Handling
Solder paste and adhesives are not static components; they are chemically active mixtures suspended in a state of arrested reaction. From the moment they are manufactured, the flux seeks to react with the alloy, and the polymer seeks to cross-link. Poor storag...
6.9 Picking, Kitting & Line Release Discipline
Kitting is the transformation of generic inventory into committed "Work in Progress" (WIP). It is not merely gathering parts; it is the digital assignment of specific assets (Lots) to a specific demand (Work Order). A sloppy kit guarantees a sloppy build. If t...
6.10 Line Returns, Scrap & Nonconforming Material Flow
The "Reverse Flow" (Production → Warehouse) is where inventory accuracy usually dies. Operators under pressure tend to dump unused parts, empty reels, and scrap into a pile and sort it out "later." "Later" never comes. The result is "Mystery Inventory"—parts t...
7.1 Incoterms & Liability
Incoterms are not merely shipping instructions; they are the fundamental contract of financial liability. They define the precise coordinate where risk, cost, and legal responsibility transfer from the supplier to the buyer. Failing to define this boundary res...
7.2 Import/Export Compliance
Customs authorities function as the ultimate physical firewall in your supply chain. They do not care about your production line down (line-down) situation, your quarter-end targets, or your engineering urgencies. If the documentation is imperfect, the physica...
7.3 Reverse Logistics (RMA)
Reverse logistics is not waste management; it is a forensic investigation. A failed component is evidence of a process or material breach. If you return a bag of loose, undocumented parts to a supplier, they will return a "No Fault Found" (NFF) report, and you...
7.4 Freight Booking, Consolidation & Exception Handling
Freight is the volatile variable that can quietly erase the cost savings you fought for during negotiation. A 5% price reduction on a component is meaningless if the logistics team books an express courier for a 200 kg pallet because they lacked a decision mat...
8.1 The Supplier Scorecard
A scorecard is not a report card; it is a feedback control loop. Without objective performance data, supplier management devolves into emotional arguments and "he said, she said" debates. Bad suppliers thrive in ambiguity. You must quantify their impact on you...
8.2 Supplier Development & Escalation
Escalation is not about shouting louder or applying emotional pressure; it is a mechanical process designed to restore system stability. When a supplier fails—whether via a quality escape, a missed delivery, or a commercial breach—they have introduced instabil...
8.3 Supplier Business Reviews
A Business Review is not a social visit. It is a control mechanism. If the agenda focuses on "relationship building" rather than performance data, the meeting is a waste of engineering time. The goal is to align the supplier's trajectory with your requirements...
1.1 The 5-Minute Mental Model
Electronics manufacturing operates on a rigid causal loop: Product = Data + Materials + Process Control. This is not a creative endeavor; it is a discipline of replication. An EMS (Electronics Manufacturing Services) provider exists to align these three inputs...
1.2 What Is Being Built: PCB vs PCBA vs Box Build
Precision in terminology is the first line of defense against manufacturing error. Using "PCB" when you mean "PCBA" confuses supply chains, misaligns quotes, and creates expensive delays. The manufacturing process is hierarchical: the bare board is a component...
1.3 Who Does What: OEM, EMS, ODM
Manufacturing relationships are defined by one question: Who owns the Intellectual Property (IP)? Misunderstanding these acronyms is not just a vocabulary error; it is a legal and strategic failure. If you approach an EMS expecting them to design your product,...
1.4 The End-to-End Lifecycle: Prototype → NPI → Mass Production
A common and expensive misconception is that Mass Production is simply a Prototype built at high speed. This is false. A prototype proves that a design works; Mass Production proves that a process works. The journey from a working unit on a lab bench to 10,000...
1.5 The Minimum Manufacturing Data Pack
A manufacturing line does not run on good intentions; it runs on data. The most common cause of production delay is not a machine failure or a component shortage—it is incomplete documentation. The "Manufacturing Data Pack" is the contract between the designer...
1.6 Cost and Lead-Time Drivers Without the Math
The final price of an electronic assembly is not determined by a random markup; it is a summation of physical complexity and supply chain risk. Two PCBA designs may look identical to the naked eye—same size, green solder mask, similar components—yet one costs ...
1.7 Supply Chain and Logistics: Speed vs Stability
A product sitting on a factory loading dock is not revenue; it is a liability. It only becomes value when it reaches the customer. Logistics is not merely "shipping"; it is the strategic management of time and risk. In electronics manufacturing, the supply cha...
1.8 Quality, Compliance, and “Definition of Done”
In professional electronics manufacturing, "it turns on" is not a quality standard; it is merely the minimum requirement for a prototype. True quality is the absence of variation. A board that functions perfectly but violates IPC assembly standards is a "defec...
2.1 PCB Materials and Layers
The Printed Circuit Board (PCB) is not merely a passive holder for components; it is an active mechanical structure that expands, contracts, and absorbs heat. If the substrate material is mismatched to the thermal environment, the board will delaminate (tear i...