Differences

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--- decap:ceramic [2019/12/17 03:07] – [Bandsaw] mcmaster
+++ decap:ceramic [2020/10/21 22:24] (current) – [Glass frit] mcmaster
@@ Line 25: / Line 25: @@
 ====== Glass frit ======
+-10-21
+  * General consensus may be that heating to below melting point (softens but doesn't liquefy glass) followed by shearing may be the best approach for most
+  * Mind heat and cool cycles to avoid thermal shock
 JM 2016-11 advice:
@@ Line 91: / Line 95: @@
 ===== Bandsaw =====
+{{:mcmaster:decap:ceramic:bandsaw_sample.jpg?400|}}
+Above: fixturing for cutting. Sample held in DIP 40 ZIF. Use cross slide to stablize.
 {{:mcmaster:decap:ceramic:decap_saw_cut.jpg?400|}}
@@ Line 110: / Line 118: @@
   * Saw a slit on both sides of the cavity
     * As far as possible, usually about 0.1" after the quartz window
+    * Saw just into the glass frit
+      * WARNING: failing to completely separate ceramic can lead to unpredictable breakage
     * Should be roughly above where the bond wires attach but not above the die
     * Small debris in the cavity is normal and shouldn't hurt the die