- Pressemitteilung BoxID 525164
A second chance
Oslon LEDs from Osram Opto Semiconductors offer greater flexibility with uniform solder pad design
Second source is the term given to the possibility of using different suppliers for a product in a particular project or for a product series. It should be possible for the products to be incorporated in current production without incurring additional costs. Second source is standard practice for LED components because of the greater security of supply but components from different manufacturers generally differ in terms of their dimensions and the shape of their solder pads. This is why two boards are generally needed for the LEDs from two different manufacturers. This drives up costs for storing the boards and also for modifying the process.
Only one adjustment to board layout required
For ceramic LED components, to which the entire Oslon family belongs, Osram Opto Semiconductors in Regensburg has therefore developed a concept that makes the board solder pad design so adaptable that it can be used for LED components from at least two different manufacturers. The concept can also be used for metal core, FR4 and ceramic boards.
Dr. Christian Gärtner, Oslon Project Manager in Product Development General Lighting at Osram Opto Semiconductors, explains: "Only a small adjustment to the process is needed, and the benefits are real and long-term." The combined board design comes from the design of one of the two LED components. The individual solder surfaces are divided into segments - into electrically connected and electrically disconnected. By selecting appropriate spacings between the solder surfaces the second LED product - rotated through 90° - can be attached to the uniform board design. The anode and cathode of the two LED components are connected to the same electrically contacted segments. By dividing the solder surfaces the two LED types automatically align themselves to the edges of the solder surfaces during the reflow solder process. For both LED components the luminous area is in the same lateral position on the board - in other words in the same alignment in the board plane. If the LEDs have the same emission behavior the same secondary lenses and reflectors can be used. This means that neither the LED components nor the end application are changed in terms of their characteristics.
Making the most of the benefits
The new concept makes it much easier to handle LED components from different manufacturers because there is no need any more to make modifications to the board design. What's more, there is no need for duplicated storage so this reduces costs still further. Christian Gärtner sums up the benefits as follows: "The efficiency and performance of our Oslon family is undisputed worldwide. The concept for a flexible solder pad design gives our customers the freedom to incorporate a second source for our highpower LED components without having to suffer restrictions due to mechanical parameters."
For more technical information on the Oslon product family go to the product catalog; information on the solder pad design is available on the web page.
Über Osram Opto Semiconductors GmbH
OSRAM AG, a wholly owned subsidiary of Siemens, is one of the two leading lighting manufacturers in the world. Its subsidiary, OSRAM Opto Semiconductors GmbH in Regensburg (Germany), offers its customers solutions based on semiconductor technology for lighting, sensor and visualization applications. Osram Opto Semiconductors has production sites in Regensburg (Germany) and Penang (Malaysia). Its headquarters for North America is in Sunnyvale (USA). Its headquarters for the Asia region is in Hong Kong. Osram Opto Semiconductors also has sales offices throughout the world. For more information go to www.osram-os.com.
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