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decap:ceramic_metal [2012/12/12 07:09] – created mcmaster | decap:ceramic_metal [2012/12/12 07:19] – mcmaster | ||
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The [[metal]] page has some general tips. | The [[metal]] page has some general tips. | ||
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===== Cutting ===== | ===== Cutting ===== | ||
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- | ====== Die ====== | + | ====== Die attach / removal |
- | Sometimes dies are soldered to a substrate (eg: silver | + | Attachment methods include: |
+ | * Glass | ||
+ | * Metal (usually | ||
+ | * Solders | ||
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+ | Generally removing dies from ceramic packages has proven difficult, especially when affixed with glass. | ||
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+ | ====== Solder ====== | ||
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+ | Example | ||
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Of course, it might take a while to get under the entire die. Heating without will help to get it off but I have found that it can take a lot of force to move even with solder melted and so its best to chemically remove as much silver as possible first. | Of course, it might take a while to get under the entire die. Heating without will help to get it off but I have found that it can take a lot of force to move even with solder melted and so its best to chemically remove as much silver as possible first. | ||
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+ | ====== Glass ====== | ||
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+ | {{: | ||
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+ | Surface tension sometimes makes it difficult to remove dies. Cutting a side of the package off so it can slide out can be much easier. | ||