Sapphire diaphragm thinning machining method achieved through double-faced grinding pad
A processing method and double-sided grinding technology, applied in the field of sapphire, can solve the problems of many appearance scratches on the wafer, high cost, low processing efficiency, etc., and achieve the effects of improving appearance quality, convenient preparation and improving processing efficiency.
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Embodiment 1
[0015] Embodiment 1: a kind of double-sided grinding pad sapphire window plate thinning processing method, its processing technology is as follows:
[0016] (1) Sheet production: first cut the sapphire workpiece into sapphire flakes, and the thickness of the sapphire flakes is 400 microns;
[0017] (2) Install and place pads and punch holes: Paste polyurethane pads on the upper and lower panels respectively, and use a utility blade to drill holes on the quicksand on the panel;
[0018] (3) Preparation of diamond grinding liquid: 5% diamond grinding liquid and 95% self-made suspension were mixed for reaction, stirred at a constant speed at 20°C for 15 minutes, and diamond grinding liquid was prepared;
[0019] (4) Adding diamond grinding fluid: Adding diamond grinding fluid, the flow rate of diamond grinding fluid is kept at 10mL / min, so that the diamond grinding fluid can be effectively distributed on the surface of the disk;
[0020] (5) Grinding: Turn on the grinder for gri...
Embodiment 2
[0022] Embodiment 2: a kind of double-sided grinding pad sapphire window plate thinning processing method, its processing technology is as follows:
[0023] (1) Sheet production: first cut the sapphire workpiece into sapphire flakes, and the thickness of the sapphire flakes is 450 microns;
[0024] (2) Install and place pads and punch holes: Paste polyurethane pads on the upper and lower panels respectively, and use a utility blade to drill holes on the quicksand on the panel;
[0025] (3) Preparation of diamond grinding liquid: 5% of diamond grinding liquid and 95% of self-made suspension were mixed for reaction, stirred at a constant speed at 30°C for 30 minutes, and diamond grinding liquid was prepared;
[0026] (4) Adding diamond grinding fluid: adding diamond grinding fluid, the flow rate of diamond grinding fluid is kept at 20mL / min, so that the diamond grinding fluid can be effectively distributed on the surface of the disk;
[0027] (5) Grinding: Turn on the grinder f...
Embodiment 3
[0029] Embodiment 3: a kind of double-sided grinding pad sapphire window plate thinning processing method, its processing technology is as follows:
[0030] (1) Sheet production: first cut the sapphire workpiece into sapphire flakes, where the thickness of the sapphire flakes is 500 microns;
[0031] (2) Install and place pads and punch holes: Paste polyurethane pads on the upper and lower panels respectively, and use a utility blade to drill holes on the quicksand on the panel;
[0032] (3) Preparation of diamond grinding fluid: 5% of diamond grinding fluid and 95% of self-made suspension were mixed for reaction, stirred at a constant speed at 25°C for 45 minutes to prepare diamond grinding fluid;
[0033] (4) Adding diamond grinding fluid: Adding diamond grinding fluid, the flow rate of diamond grinding fluid is kept at 15mL / min, so that the diamond grinding fluid can be effectively distributed on the surface of the disk;
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