Many business owners want to create innovative smart products and establish their own brand moat.
They often think this is a simple task: just find a factory, clarify the functions, have them develop a board, and then production is complete.
In reality, moving from an idea to mass production of PCBA is not a matter of just one or two steps.
Either the factory is unresponsive, or the development costs quoted are exorbitant.
I have worked in technology for 14 years, and typically follow these steps:
Step 1: Do not start by looking for a factory. First, organize a detailed product requirement document, such as what specific functions are needed, whether there are designated chip solutions, what cost requirements must be met, what power consumption limits are necessary, and what temperature and humidity requirements exist for the operating environment. Is the collaboration purely for development or long-term?
Without this, if you approach 10 factories, you might receive 8 different quotes, ranging from tens of thousands to hundreds of thousands.
When you choose the cheapest option, after several months of effort, the samples you receive may either have functional issues or stability problems. Discovering issues before mass production is still fortunate; the real fear is encountering problems after the product is launched, leading to bankruptcy.
Step 2: Schematic and PCB Design
Once the requirements are set, it’s time for the engineers to step in. They will select components and design based on your functional requirements from the first step.
Don’t try to save money by hiring inexperienced or freshly graduated students.
Poor circuit design can lead to signal interference, product instability, or even short circuits that burn the board. What seems like a cost-saving measure can actually waste a lot of time.
Step 3: PCBA Prototyping and Debugging
Once the schematic and PCB design are complete, they need to be sent to the board factory for prototyping, which means producing a PCBA and soldering components to check for issues.
Even experienced engineers find that the first version of a prototype has issues 99% of the time, whether in circuit design or dimensions.
At this point, engineers must work tirelessly to debug, modify code, and make adjustments, but you don’t need to worry; this process is taxing for the engineers.
After one round of modifications, a second, third version is produced… until the functionality is stable. The more experienced the team, the fewer iterations are needed; we generally aim for 2-4 iterations, with each board taking about a week to produce.
Step 4: Small Batch Trial Production to Smooth Out Mass Production Issues
Once the samples are confirmed to be functional, can you directly produce 10,000 units? Absolutely not! Successful samples only indicate that you can manually produce one.
Mass production on the factory assembly line is a different matter. It’s possible that Worker A can solder a component without issues, but Worker B may reduce the yield by half.
It’s also possible that a batch of chips works fine, but a different batch does not. Therefore, it’s essential to produce a few dozen or hundreds of units first to run through the production process and expose any material, process, or testing issues.
The money spent at this stage helps you save on potentially wasted units in the tens of thousands or hundreds of thousands later.
Each of these four steps helps you eliminate a portion of the risk, transforming an uncertain idea into a stable, profitable product.
Conversely, every step you skip in the early stages will cost you dearly in the market later on. Establishing your product moat has no shortcuts; the only shortcut is to diligently execute each step.
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