Browse Prior Art Database

LED WAVELINE SUPPORT

IP.com Disclosure Number: IPCOM000005528D
Original Publication Date: 1984-Apr-01
Included in the Prior Art Database: 2001-Oct-11
Document File: 2 page(s) / 77K

Publishing Venue

Motorola

Related People

Steven Crouch: AUTHOR

Abstract

During the waveline solder process, a modular LED requires special fixturlng on the waveline or to be held down with tape to prevent the LED from floating. The modular LED must be carefully and accurately positioned in such fixtures so that high labor and manufacturing costs result.

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MOTOROLA Technical Developments Volume4 April 1984

LED WAVELINE SUPPORT by Steven Crouch

   During the waveline solder process, a modular LED requires special fixturlng on the waveline or to be held down with tape to prevent the LED from floating. The modular LED must be carefully and accurately positioned in such fixtures so that high labor and manufacturing costs result.

   The LED waveline support, shown in Figures 1-3, incorporates three simple snap devices which eliminates the need for costly skilled labor. A high temperature plastic (polyether sulfone) can be utilized to mold the LED support in conjunction with the snap-fit, resulting in the eliminating of expensive heat shields and waveline fixturing.

   The operation of the waveline support can be performed in the waveline soldering stage or post wave (hand soldered) operation. The three snap details, mentioned above securely mount the LED support in three holes in a printed circuit board or any flat substrate. (See Fig. 1.) The LED's are then inserted into the support (Fig. 2) with aid of a detail molded into the support that assures proper spacing and ease of insertion of LED leads to the holes in the printed circuit circuit substrate (Fig. 3).

   This same detail also catches the small burns(Fig.3) located on the LED leads and secures the LED down on the LED waveline support, keeping the LED from floating and losing its proper spacing during waveline soldering. The LED waveline support is then ready for solde...