Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 4013483 | Method of adjusting the threshold voltage of field effect transistors A method of adjusting the threshold voltages of field effect transistors, in particular of SCHOTTKY gate field-effect transistors, is provided. During the process of manufacture of the transistor, the channel charge carrier density is modified by ion impl... | 03/22/1977 |
