公开(公告)号：WO1997022738A1

公开(公告)日：1997-06-26

申请号：PCT/US1996016166

申请日：1996-10-09

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  BALASCIO, Joseph, F. ,  NGUYEN, Thien, T. ,  WEARY, David, J. ,  LIND, Theodore, E.

IPC: C30B29/18

CPC classification number: C30B7/00 ,  C30B29/18 ,  Y10S117/902

Abstract: ST-cut and AT-cut quartz seed bodies (18, 40) for quartz crystal synthesis and method (100) for making the same are disclosed. An extended quartz seed body (18) having an angle of about 42.75 DEG rotated about an X axis (20) from a +Z axis (22) to a -Y axis (24) and defining a ST-cut is provided and a quartz crystal bar (32) is grown thereupon. Analogously, an extended quartz seed body (40) having an angle of about 35.25 DEG rotated about an X axis (20) from a +Z axis (22) to a -Y axis (24) and defining an AT-cut is provided and a quartz crystal bar (48) is grown thereupon. In each case, the subsequent quartz crystal bar (32, 48) may be wafered parallel to the seed body (18, 40) thereby reducing waste (68), recovering the seed body (18, 40) for reuse, producing wafers (70) without intervening seed portions, and increasing factory capacity.

Abstract translation: 公开了用于石英晶体合成的ST切割和AT切割石英种子体（18,40）及其制造方法（100）。 提供从+ Z轴（22）到-Y轴（24）绕X轴（20）旋转角度约为42.75°并且限定ST切割的延伸的石英种子体（18），并且形成石英 水晶棒（32）在其上生长。 类似地，提供了从+ Z轴（22）到-Y轴（24）围绕X轴（20）旋转并且限定AT切割的角度约35.25°的延伸的石英种子体（40） 在其上生长石英晶体棒（48）。 在每种情况下，随后的石英晶体棒（32,48）可以平行于种子体（18,40）平息，从而减少废物（68），回收种子体（18,40）以重新使用，从而生产晶片（70 ），没有插入种子部分，并增加工厂容量。