Defines how to establish an initial, ideal reflow profile for a specific assembly.
You are likely to encounter both the original version () and the updated revision ( IPC-7801A ). The IPC-7801 , published in March 2015, is the original 28-page standard. The IPC-7801A , published in August 2022, is the definitive revision, having been streamlined to 20 pages with clarified requirements. The A-revision refines the methodology for periodic verification and is the industry's current recommended version.
Conveyorized reflow ovens (convection, infrared, etc.). Current Version: IPC-7801A (released 2022). ipc7801 pdf
Check if you are an IPC member. Member pricing is typically 50% less than list price.
for normal operations, while high-reliability aerospace or automotive lines target . 2. Delta T ( ΔTcap delta cap T ) Management ΔTcap delta cap T Defines how to establish an initial, ideal reflow
| Search Intent | User Goal | Solution | | :--- | :--- | :--- | | | Wants the official document | Purchase link from IPC store | | Informational | Wants to learn the process | This article (or guides from reballing kit manufacturers) |
The first step in compliance is creating a "golden board"—a reusable test vehicle with thermal characteristics similar to a production assembly. This board is used to measure the oven's ability to maintain a consistent temperature profile. 2. Periodic Verification The IPC-7801A , published in August 2022, is
It must feature a high thermal endurance layer (such as thick FR4 or polyimide) that will not warp or degrade under hundreds of thermal cycles.
+---------------------------------------------------------+ | Verification Test Vehicle | | | | [TC 1] Left [TC 2] Center [TC 3] Right| | o o o | | | | * Structured thermal mass | | * Standardized board layout | +---------------------------------------------------------+